LED backlight technology

For not using polysiliconTsingtek china lcd color lcd display module technology vendors, the main focus is to improve the improved backlight brightness and color performance. In this area , CCFL cold cathode fluorescent lamp is absolutely mainstream , even though the technology for many years, has been very mature, but as time goes on , it becomes increasingly obvious flaws . The tubular light sources are cold cathode fluorescent lamp , in order to evenly distribute the light in each of the liquid-crystal panel requires the use of a reflector comprising light guide plate , an optical diffusion sheet , a prism sheet auxiliary component composed of the entire system is also called " backlight module . " But even so , the conventional type graphic lcd display module to achieve uniform brightness is also more difficult , coupled with complex structure, difficult to achieve thin backlight module thickness . More importantly, the color gamut cold cathode fluorescent lamp is relatively narrow , resulting in almost all LCD monitors are unable to reach standard flat Adobe RGB color gamut of printing , while the ordinary CRT monitor and a small LCD to achieve high SRGB standards , but has a considerable part of the recent mainstream Serial Lcd Display Module products for SRGB standards provide support. In the professional mapping applications, the operator often need a wide gamut of tone deployment of existing LCD monitors because the narrow gamut , are often unable to guarantee the color accuracy. In addition, the cold cathode fluorescent lamp life is not long , many LCD screen after a few years in the use of the product will be yellow , brightness significantly low , although in theory you can replace the lamp LCD display to enhance the quality , but the general service rarely provide this service, not many users are willing to take such a risk. Therefore , the best working condition LCD is also only a few years .