Use LED back light liquid crystal TV able to expand color rich degrees, improve the quality of the watch, even reduce power consumption and other advantages. But the price factors limit led headlight strip in the application of liquid crystal TV, so only a few several kinds of liquid crystal TV are using led back light.
Relative to the notebook computer use LED back light, liquid crystal TV utilize LED back light request is higher. After all, the screen size increase at the same time, also bring led headlight strips many challenges. According to studies, LED LCD TV as the back light, because of numerous more, so the temperature will follow the rise, so how to reduce temperature is a project. In addition, using LED back light will allow color filter must also follow to research and development, because the wavelengths of light the LED and CCFL is different, the use of the traditional color filters will let LED fail to reach their characteristics. Some liquid crystal TV panel manufacturers in the thinking whether to use the white LED to replace now commonly use the RGB LED back light, but the RGB LED back light high cost, so slow the liquid crystal TV manufacturers of the opportunity. Once LED to the white, then will be able to change so trendy. However, White LED defect is color performance is not good, so the market demand for how to remains to be tested.
Recently, the CEATEC exhibition held in Japan, both sharp. SONY, JVC, manufacturers show utilizing led kitchen strip lights of the LCD TV. SONY in early October more formally launch the RGB LED back light 40 inches ZX1 Bravia TV, only 9.9mm thickness. Samsung rolls out series 9 LED back light liquid crystal TV. Dynamic contrast can amount to 2 million-1. Irate is offering XS series of LED back light liquid crystal TV. Believe that there will be more and more LED back light liquid crystal TV appearance. However, to become the mainstream of the book light, still need time to decrease costs, to get more consumers!
