Since 2008, LED Backlight gradually into industrialization, expanding market share. Used in notebook computers from the beginning, and now used in displays, LCD TV , LED backlight products are constantly emerging, growing market share. Compared to CCFL backlight for
, LED backlights have a lot of advantages, especially in Environmental protection Have an important meaning, and therefore, along with cost reduction, market expansion, LED backlight CCFL backlight on the development of the industry a great impact, CCFL LED may eventually be replaced out of the market.
3M (China) Optical Business Development Manager for the big screen blocking Guanglei in the "China Electronic Newspaper, "said an interview, LED technology will become mature and spread of new liquid crystal industry growth drivers. From a consumer point of view will create a new selling point and liquid crystal display applications, thereby stimulating consumer demand; from the producer level, with the LED will be conducted to promote technological upgrading and industrial transformation, and thus continue to attract talent and investment.
LED and cold cathode fluorescent lamp compared to advantages are manifold. The first is energy saving, cold cathode fluorescent lamp of the optical efficiency of 60lm / W, while the current business of the LED efficiency has reached twice this value, the samples in the laboratory can also re-doubled. Secondly, LED backlight mechanical structure will bring great changes in the design. Because the small size and the LED directional light, and can greatly reduce the traditional backlight in the thickness of light guide plate, even without light guide.
In addition, the cold cathode fluorescent lamp, mercury is the high cost and significant environmental hazards of a substance. From an environmental point of view, LED gradually replace cold cathode fluorescent lamp will be an inevitable result.
LED backlight applications could have caused disruptive changes. "3M as early as five years ago began using the company's core technology platform, development of LED can give full play to the characteristics of the optical and mechanical systems. LED to LCD has only just begun to bring changes in the subsequent development we will wait and see." Blocking light Lei said.
LED backlight is still inadequate Although the advantages of LED backlighting
obvious, but still needs improvement. LED manufacturing and packaging technology, especially the relatively large size CCFL backlight not mature enough, and in the LED manufacturer of LED used for backlight is not very specific technical requirements. From the packaging side, is more suitable for LED lighting package, and not used to mixing of light from the backlight on demand. "Commercialization of LED is still not high luminous efficiency, color gamut and light effects of conflict, we must achieve a breakthrough, while the price of LED also higher.
CCFL backlight backlight has been in a dominant position. From other dimensions of the display products such as notebooks, monitors, to large size products such as LCD TV, CCFL backlight backlight products has been the largest share. Currently, large-size backlight side, CCFL backlight because of its low cost and sophisticated technology, account for most of the market. At the same time, major manufacturers have added a new CCFL backlight technology, adding to its vitality, such as scanning backlight, dynamic backlighting. Adding new technologies to improve the quality of the liquid crystal display, reducing power consumption. Optical Co., Ltd. Anhui stability
Run-Sheng Chen, general manager also believes that large-size backlight current mainstream technologies and products remains CCFL.LED widely applied in optical efficiency, cost, heat and so on are all there to promote barrier. While the LED backlight
promising development, but at this stage LED light source technology from perfect. Including cost, efficiency, and brightness uniformity control problems still need technical improvements. LED light source for the nature, different from the line source of CCFL. Used in backlight LED, need to light all of the handling of extraordinary stress. I am a professional writer from China Crafts Suppliers, which contains a great deal of information about professional tattoo machine , iron tattoo machine, welcome to visit!
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