Science and Technology Daily: LED LCD TV industry

After entering in 2009, especially on the eve of the national day, the use of LED backlight LCD TV more up, almost all domestic manufacturers have released a new LCD LED.

Currently on the market flat-panel TVs are divided into two major categories of plasma and lcd. Under the strong impetus of Changhong, Panasonic and other manufacturers, the development and production of the upper reaches of the plasma panel to achieve a breakthrough in the future, plasma TV and LCD TV will coexist for a long time. LED LCD TV in color, appearance design and energy saving is better than LCD and PDP, is the future trend of development, but also the LCD TV CCFL backlight LCD TV with LCD and LED backlight LCD TV LED. The main difference between the two is that the traditional LCD TV backlight used - CCLF cold cathode fluorescent lamp, containing harmful to humans. Although manufacturers are trying to reduce the mercury content in the fluorescent tube, but completely mercury free fluorescent tube will bring some new technical problems, and the use of LED backlight does not contain mercury, and also very power-saving.

But the lack of LED LCD TV is also very prominent. Due to the LED industry is not perfect, at this stage the main drawback of LED LCD TV is expensive, usually 2 to 5 times the ordinary LCD tv. At the same time, LED LCD TV also has a serious problem of fever. LED backlight large amount of heat, working time is too long and high temperature easy to make brightness and color drift. Therefore, large size LED LCD TV usually need to add heat sink, but these problems will be improved with the improvement of LED technology and industrial development to improve.

At this stage, the domestic LED backlight industry also has a certain scale, laying the foundation for the further development of domestic LED tv. In Shenzhen and the Pearl River Delta region, gathered more than and 700 LED companies, the formation of a more complete industrial chain, accounting for 44% of the country's LED industry. In SHARP, Toshiba TV brands, Samsung, LG, Matsushita master LED backlight core technology, at the same time, Hisense, Tsinghua Tongfang also has a LED backlight technology and manufacturing capabilities, the overall view, the development Chinese LED TV industry has a good technology foundation.