Six LED application market analysis

Application: the main application market is the LED display, full-color display robust growth.
Early start of China's LED display market, the market appeared a group of highly powerful LED display manufacturer. Currently LED display has been widely applied to the station, bank, securities and hospitals. Demand on the LED, LED display LED indicators in second place behind, the overall LED sales accounted for 23.1%. As for the LED display on the brightness and lifetime requirements higher than the LED lights, LED lights above the average price, which led to the display with LED market reached 3.24 billion yuan, topped the list as more than light The main LED application market. With unique advantages, LED full color display widely used in sports stadiums, municipal square, concerts, stations, airports and other places.
Application 2: small size backlight market slowdown, the large size will become the new focus.
LED has long been used in mobile phone-based small-size LED light backlight market, mobile phone production growth led backlight market's rapid development. In particular, the emergence of color screen mobile phones in 2003 is to promote the rapid development of white LED market. But with the steady growth phase into the production of mobile phones and mobile phone technology to enhance the lead for LED LCD panel backlight to reduce the number, making the LED backlighting in mobile phones in the amount of slowdown in 2005, with LED backlight number over 1.2 billion, the future years, the growth rate will remain in the single digits. The average number of growth slowdown coupled with falling prices, leading to the small size backlight market sluggish, while large-size backlight Although manufacturers market darling, but in 2006 still can not scale. In the above two factors, the backlight market in 2006, a 1% negative growth. 2005 backlight market size of over 1.5 billion.
Application 3: Large market potential for car headlights, but the short term the market is difficult to start.
2005 China Automotive LED application market was 0.29 billion, of which automobile headlights market 0.21 billion. From the LED application market, the automotive market is still in its infancy, the market is small.
LED lights as the car driven by low power consumption, long life and the corresponding speed and quickness. Statistics show that, in the car traveling at 100 kilometers per hour, the vehicle is equipped with LED brake lights are not equipped with LED brake lights than the vehicle braking distance will be reduced by 7 feet. Currently, LED has been gradually applied to the third brake light on the car. Although the LED is still faced with the unit low wattage lumens and related policy constraints, the taillights and headlights into the car market will take some time, but with the decline in the cost-performance ratio and improved luminous efficiency, the LED will gradually realize the ultimate from the vehicle's interior, rear to the front of the transfer, and ultimately occupy the entire automotive lamp market. With the huge capacity car, LED lamp market faces enormous development potential.
Application 4: Interior lighting market has started to enter the market, traffic lights steady growth.
Interior LED lighting market is another emerging market. By current control, LED can achieve hundreds or even thousands of color change. At this stage, the era of personalized attention, LED color LED decorative lights will help diversify the market's development. LED has begun to make small decorative lamps, decorative wall applications in hotels, living room. Interior lighting market in 2005 reached 158 million.
After years of replacement work, the nation's major cities from the traditional traffic lights replaced with LED traffic lights have been drawing to a close. LED traffic lights for many years the market has experienced rapid growth after the 2005 market reached 15.2 billion yuan. But with the completion of the replacement work, LED spotlight lights will no longer maintain market growth is expected to LED traffic lights in 2006 to achieve only 5.8% of market growth to reach 1.61 billion yuan.
Application of five: the rapid development of landscape lighting market, the market growth rate peaked in 2007.
Landscape lighting market, mainly in streets, squares and other public places, decorative lighting, the main driving force mainly from the government. By the 2008 Beijing Olympic Games and 2010 Shanghai World Expo impact of Beijing, Shanghai and other organizations to accelerate the pace of landscape lighting, the LED low power consumption, electricity consumption in the huge landscape lighting market with strong market competitiveness. Currently, LED has been increasingly applied to the landscape lighting market. 2005 Chinese landscape lighting market size of more than $ 700 million in the two main activities, led landscape lighting market will reach 72% in 2007, the high growth rates. In addition, the Olympics and World Expo will be the main role is far longer on their own landscape lighting market to drive growth, more importantly, their role models. In order to meet the Olympic Games and World Expo, Beijing, Qingdao and Shanghai, will build a number of LED landscape lighting, decorative street in these projects will also serve as a model. Other cities see the LED lighting in the landscape will reduce the outstanding performance of the use of LED landscape lighting concerns, accelerate the use of LED landscape lighting applications. LED will fast from one city to the secondary and tertiary urban expansion.
Application of Six: the general lighting market road is long, long way to go.
For into the general lighting market, power white light LED in addition to face, such as low efficiency, poor heat dissipation, high cost and other issues, will face the optical, electronic control and other institutions and the integration of LED lighting products, and develop common standards . Solve these problems requires a long period of time, CCID Consulting forecasts that LED in 2010 can not enter the general lighting market.
As the hotel, Business Center, high-end commercial office buildings and other commercial establishments relative to the price sensitivity is low. At the same time these high-end places more emphasis on highlighting the quality and dignity of the position, for the new products have a greater degree of interest. These are LED lighting to reduce the barriers to entry. LED lighting is expected to be the first to enter the commercial market, and gradually extended to the civilian market.

Identification of the merits of LED lamps

LED energy saving lamp energy-saving effect is obvious because of its long life, no stroboscopic effect, no noise, light, soft and wide operating voltage range of features and increasingly welcomed by consumers. But the current energy-saving lamps on the market led many, the quality varies greatly. How to light an array of energy-saving lamps in the shop to buy their satisfaction with the products? Through the "four to see" the merits of energy-saving lamps can be identified, described below.
A look at packaging and labels
National mandatory product LED tube manufacturers in the packaging marked the following: the rated voltage range, rated power, rated frequency. In general, a trademark of printing high-quality products of good quality, legible, easy to fall off, with a soft damp cloth, signs legible, indelible, have the manufacturer's trademark and related certification mark. Shoddy products, poor quality printing, fonts, fuzzy, easy to erase, no manufacturer's trademarks and related certification mark.
Second, look at the appearance of LED lamps
The real energy-saving LED lights, with three color tubes, tube white, hand cover, even more white, while more than two tubes together to compare the shape and size lamp consistency better than large-scale products, quality is guaranteed. The shell can not have cracks, loose, the seal should not have been prized in the installation, demolition process, lamp should not be loose, head tilt phenomenon.
Third, look at working temperature
LED energy saving lights in normal operation, the temperature should be low. Otherwise, LED energy saving lamp life is very short. Meanwhile, energy-saving lamp is lit, a quick flashing or very harsh fluctuations, indicating that the energy-saving lamps are of questionable quality.
Four to see start-up performance
LED energy saving lamp start has two characteristics: First, the higher the temperature the easier starts; Second, turn off lights, not flash. It is also worth mentioning that opened a lot of LED lamps is very dark, which is detrimental to lamp life, LED energy-saving lamps should be equipped with its internal power supply circuit and PCB board

LED lighting capture the market of the three stages of strategic development

Light green, small size, high reliability and other features increasingly prominent. The higher the tariffs, the use of longer places of business applications, LED lights quickly became the new darling of the market. As the use of LED lighting, LED market in several stages.
LED lamps to replace accepted
This phase refers to the LED lamps in the early stages of development, mainly reflecting its high light efficiency (energy consumption), and long life. Because the price was high, so at this stage mainly for business according to the market. Customers have a process to accept, is to use the habits and appearance of the transition and acceptance. Consistent with the traditional light sources in use case, LED lighting reflects the saving, longevity and other characteristics of the market makes it relatively easy to accept the high price. Especially in commercial applications. The quality of various manufacturers to fight the price advantage.
LED lamps utility model
In the last phase, based on the market for LED lighting products have a certain amount of recognition and acceptance. Green LED lamps, small size, high reliability and other features increasingly prominent. Thus developed a series of completely different from the traditional light source applications of the product will be popular. Lighting industry will be a more open space for development. Light is no longer only have a lighting effect, making it more appropriate for people of varied work life bit by bit. The company is designed to fight the application advantage.
LED lighting intelligent control
From home to office, from the road to the tunnel, from cars to walking, from the auxiliary lighting to the main lighting, with intelligent control of LED lighting systems will bring a higher level of human services. LED lighting products industry will also be made to design products to provide total solution process. With things such as the development of new technologies, LED as the semiconductor industry, high-speed trains will also catch this tour, to play its high controllability characteristics.
Initially dominated by monochromatic LED, although the power is small, the price is high, but its high reliability, controlled, small volume, so the market is the rise of the first electronic device indicator. Market for LED lighting products have a certain recognition and acceptance. With the gradual development of LED lighting, auxiliary lighting in the lighting project and other public places, LED light gradually replace some of the traditional products.

LED light source and the history of the concept

LED (Light Emitting Diode), also LED ceiling light as light-emitting diodes, it is the use of solid semiconductor chip as luminescent materials, when the ends with a positive voltage, the semiconductor carrier in place complex, release excess energy and cause photon emission to produce light .
Application of the principles of semiconductor PN junction made of dimmable LED lights came in the early 1960s, first appeared in 1964, red light-emitting diodes, and then a yellow LED. Until 1994, blue, green LED was developed. 1996, developed a white LED.

LED light principle

LEDs are PN junction silicon, electrodes and optical system. From the light - the chip area of 10.2mil (1mil = 0.0254 square millimeters), a large number of current international chip LED spotlight, the chip area of 40mil.
The luminescence process involves three parts: the forward bias carrier injection, recombination radiation and energy transfer. Tiny semiconductor chip is encapsulated in epoxy resin material in a clean, when the electronic through the chip, with the negatively charged electrons to positively charged holes move the domain and with the compound, the disappearance of both electrons and holes generate photons. Between the electron and hole energy (band gap) increases, resulting in the higher energy photons. Photon energy in turn corresponds with the color of light, visible light spectrum, the blue light, violet light energy to carry most, orange light, red light energy to carry the least. Because different materials have different band gap, which can emit different colors of light.

The main features of the LED light source

High luminous efficiency: LED After decades of technological improvements, the luminous efficiency has been greatly improved. Incandescent, halogen light efficiency of 12-24 lumens / watt, fluorescent light 50 to 70 lumens / watt, sodium 90 to 140 lm / W, most of the power into heat loss. LED luminous efficiency will be improved to achieve up to 50 ~ 200 lumens / watt, and its light color is good, narrow spectrum, without colored filters can be sent directly visible.
Less power consumption: LED strip light power 0.03 to 0.06 watts, DC drives, single-tube drive voltage of 1.5 to 3.5 volts, the current 15 to 18 mA, reaction speed, in high frequency operation. Under the same lighting effects, power consumption is one-eighth of incandescent bulbs, fluorescent tubes half.
Long life: the radiation-emitting electronic light field, filament light easy to burn, heat deposition, optical attenuation and other shortcomings. The use of LED lamps, small size, light weight, epoxy resin, mechanical strength to withstand high shock and vibration, not broken. The average life of 100,000 hours. The light fades to the initial 50%. LED lamp life of up to 5 to 10 years, can significantly reduce lighting maintenance costs, avoid frequent lamp replacement.
Strong security and reliability: can precisely control the angle of light pattern and light, light color and soft, no glare; do not contain mercury, sodium and other potential health hazards of substances. Built-in micro-processing system to control light intensity, adjusting light way to achieve light and art.
Beneficial to the environment: LED light for the whole solid body, shock, impact resistance is not easy to break, waste recycling, no pollution. Small light source, can mix, easy to develop into a short small thin portable lighting products, but also easy to install and maintain.
Response time is short: incandescent millisecond response time, LED lights nanosecond response time.

LED lighting, energy-saving lamps to lead the wave of energy saving

In recent years, China's popular "power shortage" disturb, especially in summer electricity peak period is up, the power supply tension written swept the country. At present, the cost of lighting electricity consumption accounts for about 20%, thus, reducing lighting power consumption is an important way of parsimony, LED energy-saving lamps will come into being.
That the semiconductor light-emitting diode LED, LED energy-saving lamps with high-brightness white LED light source, high luminous efficiency, low power consumption, long life, easy to control, maintenance, safety and environmental protection; is a new generation of solid cold light source, color gentle, bright , rich colorful, low loss, low energy consumption, environmental protection, for families, shopping malls, banks, hospitals, hotels, restaurants and other public places for a long time lighting. Here, the characteristics of LED light for detailed introductions. (1) High luminous efficiency, improved efficiency LED light will reach 50 to 200 lumens / watt, and its light color is good, narrow spectrum, without colored filters can be sent directly to visible light, 90% of energy can be converted into visible light (80% of the ordinary incandescent electric energy into heat, only 20% of electrical energy into light energy). Currently, the progress of the world are stepping up efficiency LED light of the discussion, in the near future there will be greater luminous efficiency of its progress.
(2) low power consumption LED-tube Power 0.03 ~ 0.06 watts, DC drives, single-tube drive voltage of 1.5 to 3.5 volts, the current 15 to 20 mA, response speed, in high frequency operation. Under the same lighting conditions, power consumption is very incandescent bulbs, one fluorescent tube half thousand hours only power consumption of a few degrees (normal 60w incandescent seventeen hours of electricity consumption of an ordinary 10w energy saving lamps one hundred hours of electricity consumption).
(3) the use of long life light using semiconductor chips, no filament, LED lights, small size, light weight, epoxy resin, an acceptable high-intensity mechanical shock and vibration, not broken, even the life of 100,000 hours (the use of incandescent life of only one thousand hours, normal life expectancy as long as the use of energy-saving lamps eight thousand hours), the use of life up to 5 to 10 years. Reduce the use of capital units, but also can save a lot of energy, which energy is very scared of China, no doubt very important.
(4) Green solid and strong, low heat, ultraviolet and infrared light does not contain, do not produce radiation, cold light source, can be safely arrived in touch: can accurately control the light pattern and light angle, color temperature and light, without glare; LED for the whole solid light, shock, impact resistance is not easy to break. Built-in micro-handling systems to control light intensity, adjusting light way to complete the separation of light and art.
(5) green non-mercury, sodium and other substances may endanger the well-being, waste recycling, no pollution. Will not produce electromagnetic interference (ordinary lamp contains mercury and lead, elements, energy-saving lamps, electronic ballasts will produce electromagnetic interference). In summary, LED energy saving lamps have a very significant advantages, the implementation of China's LED lamps will help complete the purpose of energy saving. But there are still many problems to be the ideal treatment, for example, to increase publicity efforts to improve the popularity of LED knowledge, progress, technology to reduce capital spending to promote energy-saving LED lights to get consumer recognition and tolerance. We have reason to confidence, LED as a new energy-saving, environmentally friendly green lighting products on the market in the future shine!

LED lamps to replace incandescent effect continued: Global Policy Interpretation

According to the latest statistics, high-brightness LED market will be $ 8.25 billion in 2010, growing to $ 12.6 billion in 2011, the annual growth rate will reach 53%; which, LED lighting, number of pieces by the use of 4.8 billion in 2010, will increase 2011 12.4 billion, because the 2011 primary to replace traditional incandescent bulbs LED effects starting to show. After following the LED-backlit TV, LED lighting, LED industry will be driven by high growth applications. Although in 2010 the total lighting market, LED lighting, the proportion is not high, only 3.2% in value terms, however in the sense of high energy and reduce carbon, the world's major countries have set the LED lighting policy to actively promote the development of LED module
industry. DIGITIMESResearch analyst and project manager Linfen Hui analysis, global demand for LED bulb 596 million by 2011, significant growth to 2013 of 2.5 billion; street, since mainland China, the United States, Europe has been promoting in all major cities in demonstration project, estimated to be LED lights 2.2 million in 2011 to $ 9.8 million in 2013, a further drive the next few years to enhance the penetration of LED lighting. Major countries in the global policy to promote LED lighting, LED luminous efficiency improved significantly, and the estimated annual price of LED lighting will have dropped 20 to 30% of the space under the influence of Linfen Hui estimates LED lighting demand from 2009 to 2013 years will reach 97.4% CAGR, higher than the large size LCD with LED backlight CAGR of 62.6%, and the LED lighting market will reach in 2011 as $ 15.4 billion, the overall lighting market penetration for the first time in over 10%, 10.6%.

LED lighting health leader in environmentally friendly green

The pace of technological development, the green light to become a growing concern, both a low-carbon energy-saving and environmentally friendly lighting also has become the biggest test of the lighting industry, the emergence of the LED, to give people hope.
LED has been widely used in our lives, LED neon
and LED fluorescent believe we are not familiar with, because of its energy saving features and long life Rugged maintenance-free performance, urban lighting without it. People often complain about street light not bright enough or old bad repaired before long and bad, etc., while the LED lights appear timely for us to solve the problems of urban lighting, so that we can safely travel. The improvement of material life, people began to pay attention to their own lifestyle, fitting in the furniture when the lights in order to choose a suitable and hesitation, nice bright light is too strong a light bar, not good for the eyes and body, light a little weak right affect the sense of interior decoration, how to do it, you may wish to look at energy-saving LED lamp.
LED energy-saving fluorescent lamps that meet your requirements for style, but also satisfy your desire for health. With it you do not hesitate, it is adjustable color temperature and light softness almost no effect on the eyes, and different angles of light will bring a different feeling, it is durable, low-carbon products is in itself reduce carbon emissions give you a warm and comfortable light environment. It is also very energy-efficient, the use of electric field into light, saving power resources gave us a comfortable living environment. New style, high color, but also gradually integrated into every corner of life, such as a Christmas present out of the new.
LED lighting, not just the embodiment of health and environmental protection, or green lighting leader. Snow Bai Shi lighting is recommended that you choose healthy and environmentally friendly LED lights.

Power shortage, energy-saving products have become the "meat and potatoes"

Compared with ordinary fluorescent lamp, LED bulbs lamp energy saving, long life, safe and reliable. According to reports, a 15-watt fluorescent light with 40 LED fluorescent wap pass close to, but it's more than 50,000 hours service life is 5-8 times the normal fluorescent lamp. Although the LED lamp has many advantages, but the price of each one hundred and sixty seventy yuan will allow consumers to stay away? Lianzhong business manager Mao Yuehui optical calculations: a 15-watt LED lamp with a power less than 24 hours ordinary 40-watt fluorescent lamp for 40%. Electricity by industry 0.8 dollars each, LED fluorescent year, saving 210 degrees can save electricity more than 160 yuan, just the purchase cost of LED lamp. And some textile weaving business, shopping malls, hospitals and hotels and other high demand for lighting the place, the amount of fluorescent light is hundreds of branches, some large amount of textile enterprises and even up to thousands of sticks. These locations are used in ordinary fluorescent LED fluorescent replacement, energy-saving effect is very obvious.

LED lighting market focus gradually transferred to the home lighting market

Prior to the use of LED lighting often, mostly special purpose lighting and landscape lighting, these lamps in the lighting market in only a very small part of the future will serve as the lead LED gradually penetrate into the home lighting market in the past. With very different domestic lighting, landscape lighting, less demanding on the brightness, the lamp, for example. Most government procurement, price sensitivity is quite low, from this point can be seen on the market penetration of home lighting in one of two technical factors, the second is price. In indoor lighting, luminous efficiency, color rendering are all technical threshold.
Lighting products throughout the production process to low-power white light products, for example, the chip part of the total cost of the product is relatively small. Light manufacturing and marketing chain is also high value-added sectors, has not been established because the current marketing channels, channel costs account for about 25% of the total cost. In other words, chip, manufacturing, sales channels, including the proportion of the current cost of similar, which is currently in the field of LED lighting, traditional lighting companies slightly ahead of LED downlight business reasons.
According to the "2010-2015 China's semiconductor lighting (LED) industry investment analysis and forecast report" shows that with the steady improvement of luminous efficiency, the higher the efficiency, the backlight light source using the fewer number of LED chips, the same, LED chip The unit will continue to decline, mobile phone LCD panel with LED backlight also exists in this situation. In contrast, the family of LED general lighting market will continue to expand within a longer period of time. Unique advantages of LED lighting will be received, the entire lighting market is expected to be further expanded.
With the gradual penetration of the future to deepen LED, when the time to achieve 100% penetration of the market on a large scale of new capacity will be directly reflected in home lighting. Ordinary consumer demand is very high optical quality, the spending habits of the various regions are not always the case, therefore, extending the diversity of products, improve product quality is also a future direction of enterprise development.

Two control the brightness of LED

One is to change the current flowing through the led, the general LED tube to allow continuous current 20 mA or so, there is saturation in addition to the red LED, the other LED brightness is essentially proportional to the current flow.
Another method is to use the human visual inertia with a pulse width modulation method to achieve gray scale control, that is, periodic changes in pulse width (ie duty cycle), as long as the repeated cycle of light short enough (ie, refresh frequency is high enough), the human eye can not feel light-emitting pixels in the jitter. As the pulse width modulation is more suitable for digital control, so widely used computer to provide the RGB LED light today, almost all of the LED.
LED control system usually consists of the main control box, scan control board and display device has three major components. Main control box from the computer's graphics card to get a colored screen pixel luminance data, then re-assigned to the scan plate number blocks, each scan LED screen on the control board is responsible for a number of rows (columns), and each row (column) on the LED display control signal is transmitted with a serial manner. There are two serial transmission of display control signals: one is the centralized control panel scan grayscale pixels, scanning from the control panel box of the line pixel brightness value decomposition (ie, pulse width modulation), Then the opening of the line LED signals in pulses (light 1, off 0) by using serial transmission line to the corresponding LED on the control whether light. Devices used in this way less, but the serial transmission of data volume, because in a repeat cycle of light, each pixel in the 16 gray scale requires 16 pulses, required under the 256-level grayscale 256 pulses, the device operating frequency restrictions, can only do 16-level grayscale LED screen.
Another method is to scan the contents of the board is not a serial transmission switching signal for each LED but the brightness of an 8-bit binary value. Each LED has its own pulse width modulator to control the on time. Thus, in a repeating cycle of light, each pixel in the 16 gray scale only four pulses, 256 gray scale only 8 pulses, greatly reducing the frequency of serial transmission. In this method of decentralized control LED gray can be easily controlled with 256 levels of gray.

General LED lighting for the long life?

Many people are currently on the market big blow LED lighting, LED light emitting diode life span how long. I here to ask a question: How long is 10,000 hours? LED life is how come?
LED light source life has now reached 100,000 hours or more, with the continuous development of LED technology and application of technology a lot of popularity in the drive and cooling basically achieve a more satisfactory state of commercially available high-quality basic life LED tube to achieve 10000-50000 hours, almost 10-50 times the normal halogen spotlights.
10,000 hours which is long?
10,000 hours divided by 24 hours a day and then divided by 365 is equal to 1.141 years, that led spotlights life of only a year? I like how is unacceptable. Fluorescent lamps can be used for several years, not to mention the solid light-emitting diode led.
How life is counted?
First, we have to understand that for manufacturers to fully test a led light output is not possible. LED manufacturers are now using is to measure the light output of a certain time, such as the 5000h, and then use the appropriate mathematical method to infer the initial light output dropped to a certain percentage of the time
We have to ask you another question: We usually can not be led spotlights open 24 hours, and led spotlights the so-called test method is how? And what led lamp brightness down to test points for good?
So here domain optical want to say is Chi led spotlights, long life, still a big problem. Or should choose the number of production standards, quality control is better.

The advantages of LED light source

① new green light: LED light source to use cold, glare is small, no radiation, no use of harmful substances. LED is low voltage, DC drive, ultra-low power consumption (single tube 0.03 ~ 0.06W), electro-optical power conversion close to 100%, under the same lighting effects than traditional energy sources more than 80%. LED's environmental benefits of better, no ultraviolet and infrared spectra, and recyclable waste, no pollution, no mercury elements, safe touch, typical of the green lighting.
② Long life: LED cold light source for the solid, epoxy resin encapsulation, vibration, light body and no loose parts, there is no filament light easy to burn, heat deposition, the light fades and other shortcomings, the service life of up to 60,000 ~ 100,000 hours, is the traditional source of more than 10 times the life. LED performance is stable, can be -30 ~ +50 oC work environment.
③ multi-transform: LED light source can make use of red, green and blue color theory, computer technology under the control of the three colors with 256 levels of gray, and any mix, you can generate colors, the formation of different color combination. Color changing LED light combination can achieve a variety of dynamic effects and a variety of images.
④ High-tech: with traditional light sources glow comparison, LED light source is a low-voltage microelectronics products, the successful integration of computer technology, network communication technology, image processing and embedded control technology. LED lights use traditional chip size 0.25mmX0.25nm, and the size of LED light in general should be more than 1.0mmX1.0mm. Desktop work forming the LED die structure, inverted pyramid structure and flip chip design to improve the luminous efficiency, which issued more light. LED packaging design innovations, including high conductivity metal block base, bare flip-chip design and type casting plate lead frames, etc., these methods can be used to design high-power, low thermal resistance of the device, and these devices than traditional LED illumination greater illumination products.
Currently a typical high-flux LED devices can produce a few tens of lumens luminous flux lumen to update the design of a device can be integrated more of the LED, or installed in a single assembly in multiple devices, so that the number of lumens output equivalent to a small incandescent lamp. For example, a 12-chip high power LED devices can output 200lm monochromatic light energy, the power consumption between the 10 ~ 15W.
LED light source applications are very flexible and can be made into points, lines, various forms of short, light products; LED control is extremely convenient, as long as the adjustment of current, you can freely adjust the light; different combinations of color changing light, the use of timing control circuit and better meet a variety of dynamic effects. LED lighting has been widely used in various devices, such as battery-powered flash, voice-activated micro-lights, security lights, outdoor and indoor stair lighting roads and buildings and mark continuous lighting.
The emergence of white LED, the LED lighting function to the identity function from substantial step taken. White LED closest to the sun, more exposure to better reflect the true color of the object, so from a technical point of view, the white LED is undoubtedly the most cutting-edge LED technology. At present, the white LED has entered a number of application areas, emergency lights, flashlights, flash and other products have come out, but because the price is very expensive and therefore difficult to spread. White LED popular premise that lower prices, while prices fell in the white LED to be a certain size of the market after the possible integration of both technological progress ultimately depends.

Features and advantages of LED lighting market

With the development of new materials and process improvements, LED light technology tends to highlight and full color. GaN substrate the appearance of the blue LED, the LED is expanded application areas. The main current LED applications, including large-screen color display, lighting, lasers, multimedia imaging, LCD background light sources, detectors, traffic lights, instrumentation, optical communications, satellite communications, marine communications and optical pattern recognition, etc., but also mainly used for lighting and display.
LED is produced by a superconducting high-intensity light-emitting crystal light, it emits very little heat, not to waste too much heat as incandescent bulbs, unlike fluorescent lamps, as a result of high energy consumption and generate toxic gases, unlike neon, as required high voltage and easily damaged. LED has been globally recognized as a new generation of environmentally friendly high-tech light.
LED light with high efficiency, energy saving than the traditional 80% neon, safe and reliable. LED light changes the incandescent tungsten lamps with energy-saving light of three basic principles of dye, while the use of electric light. LED wall washer light source has a long life, high luminous efficiency, no radiation and low power consumption. LED spectrum is almost entirely concentrated in the visible light spectrum, the luminous efficiency of up to 80% to 90%. The LED and incandescent lamp, spiral energy saving lamps and T5 fluorescent trichromatic comparison, the results showed that: ordinary incandescent light efficiency of 12lm / W, life expectancy is less than 2000h; spiral energy saving lamp luminous efficiency of 60lm / W, life less than 8000h; T5 tricolor fluorescent light efficiency compared to 96lm / W, life is about 10000h; and a diameter of 5mm white LED light efficiency is 20 ~ 28lm / W, life can be greater than 100000h.

LED light failure definition and influencing factors

White LED current is a major problem facing the problem of life, due to the price of white LED is still very high, in order to gain a foothold in the lighting market, allowing users to both power and money, we must rely on long-life and savings in electricity to make light of high prices. Now, the white LED life situation makes it difficult to do this.
Normal use of terms from the LED, the most important factor affecting the life of LED is hot. Heat source, a material's resistance in the normal power generated by Joule heat, PN junction heat generated, as well as the parasitic resistance caused by process Joule heat generated, and the resulting light is attracted heat. The accumulation of heat makes the temperature, temperature makes the chip performance degradation, degradation of aging and degeneration.
1 What is the LED light failure
LED light decay products is light in the transmission of the signal weakened, and at this stage the global LED manufacturers who decline to make light of the LED lights are different, there are also high-power LED light failure, and this is directly related to temperature, the main by the chip, phosphor and packaging technologies decision. Currently, the white LED on the market may decline to its light commercial lighting into one of the most important issue.
2, the impact of two factors LED light failure
1) LED LED chip quality problems using good body, brightness decay quickly. Production process defects, LED chips heat can not export a good foot from the PIN, the chip temperature is too high to make the LED chip attenuation increased.
2) The conditions of use
LED constant current driver, there are some LED drivers of the LED using voltage attenuation over. Drive current is greater than the rated drive conditions. In fact, lead to bad light LED products for many reasons, the most important thing is the hot issue, although many manufacturers in the sub-products do not particularly pay attention to heat issues, but these secondary long-term use LED products, the lumen of a focus than the heat LED products to be high. The thermal resistance of LED chip itself, the impact of silver plastic, the cooling effect of the substrate and colloidal and gold also have a relationship with the bad light.

LED lighting-emitting principle and advantages

LED lighting-emitting principle and advantage: LED light-emitting diode is short. By the gallium (Ga) and arsenic (AS), phosphorus (P) compounds made of diodes, when the electron and hole recombination radiation when visible light, which can be used to make light-emitting diodes in the circuit and equipment as instructed lights, or the composition of text or figures. Of red phosphorus and gallium arsenide diodes, gallium phosphide diode glow green, yellow hair silicon carbide diodes. At present there can be issued a similar incandescent light color LED, which provides a modern lighting, long life, high efficiency lighting, the most valuable is, LED devices with up to 50,000 or even 100,000 hours life, for many occasions the application characteristics.
LED light with natural light is different, the spectrum is not continuous, the lack of the infrared part, so different with incandescent lamps, LED by the radiant heat generated is not shed, but must be shed by conduction, which is known as cold- LED strip of reason. LED has the following advantages:
Energy efficient: the white LED is now known to most energy-efficient white light source of the device. Power consumption of only a few degrees one thousand hours (regular consumption of a 60W incandescent seventeen hours of electricity, the general consumption of 10W energy saving lamp one hundred hours of electricity)
Long life: light-emitting semiconductor chip, no filament, no glass bulb, afraid of shock, not broken, the service life of up to 50,000 hours (incandescent only a few hundred hours of life, ordinary life of energy-saving lamps only eight thousand hours )
Green: No harmful elements such as mercury and xenon, is conducive to recovery and use, and will not produce electromagnetic interference (ordinary lamps contain mercury and lead, elements, energy-saving lamps, electronic ballasts will produce electromagnetic interference, and light mercury tubes still exist)
Eye protection: DC drive, no flash (normal lights are AC drive, it will inevitably produce strobe)
Light efficiency: small heat: 90 percent of electricity into visible light (incandescent 80% of the energy into heat, only 20% of electrical energy into light energy)
Market potential: low voltage, DC power supply, battery, solar power can be can be used for outdoor lighting in remote mountainous areas and lack of electricity, less electricity places.

High-power LED and the difference between low-power led

led light-emitting diode is a diode, characterized the current time is the wizard of light to emit different colors. Led high power led is a kind, as opposed to low-power led, the power led single higher power, brightness, brighter, higher prices. Low-power led is rated 20mA, 20mA rated current higher than can be counted as high-power basically. There are a few general power: 0.25w, 0.5w, 1w, 3w, 5w, 8w, 10w and so on. Main unit of luminance is lm (lumens), low-power unit of luminance is generally mcd. The two units can not be converted. Now emerging as a green, environmentally friendly, energy-saving light sources are widely used in car lights, flashlights, lamps and other places.
LED high power so called, mainly for low-power LED light, I summarize the current classification criteria, there are three:
The first one is based on the size of the power can be divided into 0.5W, 1W, 3W, 5W, 10W .... 100W range, depending on the package after the molding products in terms of total power varies.
The second process can be divided into its packaging: large epoxy resin, imitation of piranha-type epoxy resin, aluminum plate (MCPCB) type package, TO package, power-type SMD package, MCPCB integrated package, etc.
A third of its lumen can be divided into different levels of high-power low-light decay products and non-high-power low-light decay products.
Of course, since the parameters of high-power LED itself more, according to different parameters have different classification criteria, no class in this state. LED high power LED packages are still in a kind, is to make the semiconductor lighting. Into the general lighting in the most important part.

The concept of the new situation of energy-saving

Now we live in a world changing too fast, too fast technological change technology, today we are still proud as a technology when the future of this technology is very common is not a unique new, have to say technology developed in our society today, any industry in rapid development, as we raise the level of material life, more and more people focus has not just a matter of daily life, people will be more look on our environment, our life on Earth, green energy is not new, but in this new situation, LED lighting, low-carbon energy become a concern
LED lighting across the world the benefits are obvious, such as Australia in recent years, first, first introduced legislation prohibiting the use of incandescent lamps, after the EU adopted the relevant laws and regulations, and so out of incandescent lamps, in fact, these appear to be normal replacement of old and new, means more than just a new type of light source behind and technologies, this is the advent of an era, LED lighting, the advantage is obvious in the world, LED module characteristics of the product is also very clear that the purpose is saving in energy context but also bright enough, this is the significance of the birth of LED lighting with less energy consumption, to achieve a greater goal, this is in line with the modern idea of actually saving energy today, has already exceeded the purchase of an LED dozens of energy-saving lamps save electricity concepts, the idea is more of electricity for some super-large, customized set of lighting transformation program, combined with the overall decor decoration on the lighting aspects of some of the transformation, to both save electricity energy saving ideas, but also achieve satisfactory results of the lighting design concept, which to some extent may have been involved in terms of a marketing program development
LED lighting, whether from the future or now, will be a market with unlimited potential, we need to do more than just saving money so simple, but also to do is saving for our future life together to create a greener environment world

How to locate housing LED lamps

Development of LED lighting to the present, I believe many of my friends are often seen lighting LED lighting products on the market, the appearance is strange, no matter what kind of product, there are a lot of shape, of course not the same price as some of the mainstream LED lamp, LED bulb, LED fluorescent interior lighting such, businesses in order to occupy a certain market, both in appearance and down a lot of effort, to go into research and development, looking at the shape of the case, how to control costs has become a business issues
May now look, LED lighting, many businesses have to fight the cost, how to control costs, the corresponding control on the price to win market access to the pre-edge analysis, and now the LED lighting market, the appearance of the product are is aluminum-based design, because of its great heat and aluminum prices in the ratio of the two is the best, a lot of LED strip manufacturers in product design are inseparable from the aluminum, after all now the LED lighting market, that price has already started a number of factors in it, who do not want to own the product does not have any advantage in price, although the direction of each business and different strategy, take the high road, perhaps the price is high in the general market price, but for the general public consumers, is unbearable.
For the shell material is concerned, LED lighting, the next few years will be mainly based on aluminum, it is necessary to ensure that production costs but also to ensure that its heat, cooling, after all, is a hard technical indicators, if you can not do enough heat, a LED lamp life of finished product will have great impact, and for continued development and progress of the LED lighting industry, which is a long-term progress of the process, materials, thermal problems can be solved, it will turn to the pursuit of appearance, with the LED lighting market popularity, people accept the LED lighting products, LED lighting products will also be critical, choose, and no one product or industry, if you want to continue to develop and advance the process, must face.

Grasp the LED lighting, to create green energy-saving life

Technology has been improving, LED lighting products white argument in the future will be able to achieve 200lm / w, the price will be gradually reduced to a minimum, even close to the price of incandescent bulbs, these are just a matter of time, it now appears any device, any place, any environment can take advantage of LED light era of global resources, increasingly strained far today, people demand for new power generation equipment is also growing, due to Japan in March of this year's earthquake and tsunami, caused a new a nuclear crisis, and control power consumption has become a people need to be resolved, most attention in recent years, LED lighting is probably the most representative as lighting products, through energy efficient LED lighting product to achieve control of people's use of electricity
LED lighting has long advocated, and paying attention, and into the LED lighting is also not only Japan, all over the world are in action, and a big reason is that LED lighting with long life and low energy consumption, although LED lighting products, prices gradually decline, but to achieve both low price and most efficient light sources, LED lighting products also need to develop a few years, we can see is still with prices declining, LED lighting market trends and demand continues to increase, as more and more people are concerned about the LED lighting at the technical level, there are many things that need to improve, such as a finished lamp color index, flux, lifetime, thermal structure, appearance, cost control, light emitting angles and so on, until I believe can solve these problems, to meet the LED lighting is a vast unlimited market

LED lighting capture the market of the three stages of strategic development

Light green, small size, high reliability and other features increasingly prominent. The higher the tariffs, the use of longer places of business applications, LED lamps quickly became the new darling of the market. As the use of LED lighting, LED tube in several stages.
LED lamps to replace accepted
This phase refers to the LED lamps in the early stages of development, mainly reflecting its high light efficiency (energy consumption), and long life. Because the price was high, so at this stage mainly for business according to the market. Customer acceptance of a process is to use the habits and appearance of the transition and acceptance. Consistent with the traditional light sources in the case of the use, LED lighting reflects the energy-saving, long life and other features make it easier to accept the market's relatively high price. Especially in commercial applications. The company is the quality to fight price advantage.
LED lamps utility model
In the last phase, based on the market for LED lighting products have a certain amount of recognition and acceptance. Green LED lamps, small size, high reliability and other features increasingly prominent. Thus developed a series of completely different from the traditional light source applications, products will be popular. Lighting industry will be a more open space for development. Illumination light source is no longer just play the role, making it more appropriate for people of varied work life bit by bit. The company is designed to fight the application advantage.
LED lighting intelligent control
From home to office, from the road to the tunnel, from cars to walking, from the auxiliary lighting to the main lighting, with intelligent control of LED lighting systems will bring a higher level of human services. LED lighting products industry will also be made to design products to provide total solution process. With things such as the development of new technologies, LED as the semiconductor industry, high-speed trains will also catch this tour, to play its high controllability characteristics.
Initially dominated by monochromatic LED, although the power is small, prices high, but its high reliability, controlled, small volume, so the market is the rise of the first electronic device indicator. Market for LED lighting products have a certain recognition and acceptance. With the gradual development of LED lighting, auxiliary lighting in the lighting project and other public places, LED light gradually replace some of the traditional products.

LED energy-saving lamps to identify strengths and weaknesses, "four to see"

LED energy saving lamp energy-saving effect is obvious because of its long life, no stroboscopic effect, no noise, light, soft and wide operating voltage range of features and increasingly welcomed by consumers. However, the LED on the market a lot of energy-saving lamps, quality varies greatly. How to light an array of energy-saving lamps in the shop to buy their satisfaction with the products? Through the "four to see" the merits of energy-saving lamps can be identified, described below.
A look at packaging and labels
National mandatory LED lighting products manufacturer in packaging marked the following: the rated voltage range, rated power, rated frequency. Generally speaking, a trademark of printing high-quality products of good quality, legible, easy to fall off, with a soft damp cloth, signs legible, indelible, a manufacturer's trademark and related certification mark. Shoddy products, poor quality printing, fonts, fuzzy, easy to erase, no manufacturer's trademarks and related certification mark.
Second, look at the appearance of LED display
The real energy-saving LED lights, with three color tubes, tube white, hand cover, even more white, while the lamp more than just put them together, tube shape and size uniformity is better than large-scale products, quality is guaranteed. The shell can not have cracks, loose, the seal should not have been prized in the installation, demolition process, lamp should not be loose, head tilt phenomenon.
Third, look at working temperature
LED energy saving lights in normal operation, the temperature should be low. Otherwise, LED energy saving lamp life is very short. Meanwhile, energy-saving lamp is lit, a quick flashing or very harsh fluctuations, indicating that the energy-saving lamps are of questionable quality.
Four to see start-up performance
LED energy saving lamp start has two characteristics: First, the higher the temperature the easier starts; Second, turn off lights, not flash. Also worth mentioning is that many LED lamps opened very dark, which is detrimental to lamp life, LED energy-saving lamps should be equipped with its internal power supply circuit and PCB board.

Upgrade to the power LED industry, green building

Energy saving LED lighting industry as an emerging industry, has been well received national attention, semiconductor lighting "Twelve Five" plan will be introduced in September. At the same time as the introduction of national standards LED display, LED products this year is likely to include some enjoy the financial subsidy, industrial lighting, commercial lighting may be a wide range of start. LED in all aspects of the application showed a rapid growth momentum, market research organizations LED Inside pointed out that the 1000 lumens of LED lighting for every price costs about 7-10 U.S. dollars, as costs continue to decline, from 2011 to 2012, LED lighting market will accelerate growth.
At present, China has become the world's second largest country in LEED certification, LEED-certified project application at an annual rate of 20% increase. Represented by the green LED lighting development of China's green building and an important impetus for the development of the system. Philips to provide office space for China's LED lighting solutions, from the light source, lighting and intelligent control system fully in practice on the green concept. Meanwhile, the use of construction itself, and the use of natural light to the limit, with high quality LED lighting, so that the illumination can fully meet the work requirements of the case, and the maximum reduction in lighting power consumption, final achieve the project's energy consumption is minimized. Jiangsu Taicang Interface Flor construction projects, high-quality lighting solutions for Philips advanced building energy-saving lighting technology opens a new era of transformation. Interface as the world's largest carpet manufacturer, China as an important strategic market, lighting standards required to achieve LEEDGOLD requirements. For such a request, Philips designers introduced advanced dynamic lighting technology, balanced environment to improve the lighting, design lighting solutions for professional office use up and down the light of Philips TBS498, the lamps in the window Installation luxsense used for solar control. INTERFACE FLOR's Branch of the Centre as a zero-carbon used in Philips Lighting's new office building sample. The responsible person said, from the LED device R & D to design detail, as appropriate, "people first" principle, to the green building market in China continues to lead.
Greater China General Manager Mr. Liang Hanfeng Philips Lighting, said, "As China's green building user awareness and the development of standards, Philips Lighting is willing to promote China's green LED lighting in the quality and quantity of new dimensions to breakthrough. "

LED lighting effects into the development trend of the brand

Into 2011, the lighting industry is bound to the past and, in particular, accompanied by the rapid development of LED lighting, energy saving, intelligent lighting fixtures market will be to bring more surprises, whether it is business as usual lighting home lighting trade, industry will mature and professional. Even so on, in the power of technology to produce lighting products to spur non-stop is different and market diversification, while non-stop, scale, specialization, branding the act must be the lighting industry growth trends, more and more fierce competition through the process , so the lighting industry to examples of.
Check the performance of the market visit, at the present 60% of total household consumption for lighting decoration for more than 10% of the total expense. This confession, along with subsistence levels of progress, the applicability of the people of the lamp, decorative, healthy sex and a higher requirement. In view of the influence of low-carbon, energy-efficient lighting, green lighting will be more considerate by ordinary Lai Man-topic.
Late to buy LED lamps. All walk-scale generation, brand monopoly is Aspect. Together we can work together to make a good career for the development of LED lighting modes.
Buy LED lights have to look at the brand, many LED lights now on the market do not sign, the lamp is not cheap after-sale protection.
2011, is the lighting industry's most popular LED street light decoration. ECCO LED lights lighting industry as leading to open branches. LED lighting shop store, lighting up more and more brands, lighting enterprises to the market, so that the scope of the market at home and lighting, the brand of LED lights.
Chain model as the lighting industry, the growth of a certain trend, it is the same brand, same operation, the same and so the upper hand, has copied music into a biographical characteristics, and the lighting industry as the growth of fast-growing trend.
Groups along the muster point lighting, how to buy home lighting, contemporary decoration to form a strong electrical appliances, decorative, contemporary families, and businesses with lighting the subject. In particular, along with all sorts of lighting products of all sorts, all sorts of lighting in every possible way so that consumers of the brand often at a loss. However, a strong work, professional lighting consumption guide, perfect after-sales work will be difficult to buy lamps for Eve Eve.
Property as a town home and contemporary lighting Lighting emerging industry, after 10 years of growth, has already formed a particular year over year to muster at home and rapid lighting market, spur Zhongshan, Xiaolan, horizontal bars, and lighting the town grew, many lighting lighting market enterprises move from the ocean inside and localization of the product work, many lighting companies to make the town stronger Eve.

Classification of LED products

LED Products are many, we simply look at classification. LED light LED according to color, LED features a smooth, light-emitting tube structure, luminous intensity and current, chip material, functions and other standards have different classifications. Following is a brief first six classifications.
1, according to the classification of LED light colors
According to the different LED light colors, can be divided into red, orange, green (and yellow segments, the standard green and pure green), Blu-ray. In addition, some light-emitting diode contains two or three colors of chips. According to a light emitting diode doped or not doped at the scattering agent, colored or colorless, the various colors of light-emitting diodes can be divided into colored and transparent, colorless transparent, colored and colorless scattering four types of scattering.
2, divided by diameter round light φ2mm, φ4.4mm, φ5mm, φ8mm, φ10mm and φ20mm and so on. Abroad, usually recorded as light-emitting diodes φ3mm T-1; to φ5mm's recorded as T-1 (3 / 4); the φ4.4mm's recorded as T-1 (1 / 4). By the size of half-value angle angle can be estimated round luminous intensity distribution. Angle from the luminous intensity distribution to be divided into three categories:
(1) high directivity. Generally pointed epoxy encapsulated, or encapsulated with a metal reflector cavity, without additional scattering agent. Half-value angle of 5 ° ~ 20 °
Or smaller, high directivity, can be used for partial lighting, or light detector associated with the automatic detection system for the composition.
(2) standard. Typically used for light, its half-value angle of 20 ° ~ 45 °.
(3) scattering type. This is the perspective of the larger lights, half-value angle of 45 ° ~ 90 ° or greater, the larger the amount of scattering agents.
3, classified according to the structure of light-emitting diodes: light-emitting diode according to the structure can be divided into full-epoxy, epoxy encapsulated base metal, ceramic and glass base epoxy encapsulated packaging.
T4, luminous intensity and work according to current classification; according to light intensity and operating current can be divided into normal-brightness LED (light intensity <10mcd), high-brightness LED (10 ~ 100mcd) and ultra-high-brightness LED (light intensity> 100mcd). In general LED current to a few dozen mA mA, and low-current LED tube current in the 2mA or less (normal LED brightness and the same).
5: Press the power sub: T a small power LED (0.04-0.08W), the power LED (0.1-0.5W), high-power LED (1-500W), as technology continues to evolve, LED power quest large.
6: According to package sub: T one is the SMD (SMT) and DIP (DIP) in two
For the classification of LED, we have a sense on the line, but also to see the real physical and practical application will be able to truly distinguish us in the will be kind and use of details, please in application of chapter and then the depth of learning and understanding.

LED industry prospects bright

Quanzhou's LED industry is still in its infancy, the government should strengthen guidance and training technical personnel to drive the formation of brand and chain, LED industry a bright future. "Yesterday, professor at Peking University, Chinese Academy of Sciences Gan Zi-Zhao interview with this reporter said.
Gan Zi-Zhao Academy has more than 70 years old, still eyed, hale and hearty. In the interview with this reporter, he is always smiling, amiable. Mention the study of LED technology and solar PV industry, Gan Zi-Zhao talking about. He believes that rapid development of LED lights in recent years, in 2015 -2020 period, the domestic is likely to achieve most of the LED lighting in general lighting applications. LED lighting, saving 50% over incandescent lighting, extensive use in general lighting, the electricity the entire society will be able to save more than 5%.
In recent years, due to the rapid development of optoelectronics industry in Quanzhou, driving the LED industry chain downstream of the rapid follow-up and rapid spread. Gan Zi-Zhao booming economic development of Quanzhou vitality appreciation for me. He said, Quanzhou, LED industry has just started, the government should actively guide the orderly and disorderly competition into the market, cultivating brands and the Group; should make great efforts to improve the technical level, training technical personnel, and technological innovation to give incentives and subsidies; should pay attention to solid-state lighting development opportunities, such as solid-state lighting can be applied to the cultural and creative industries, pharmaceutical industries, mechanical and electrical industries.