Tv’s on the basis of direct-lit led-backlight remain too expensive to be tv’s with ccfl backlight and replaced it. The reason is an expected increase in license fees for specific led components. Edge-lit backlight can, however, still drop in price.
That reports Digitimes. Tv’s with a limited number of leds behind the panel can, in principle, cheaper to be produced than the current tv’s on the basis of edge-lit led-backlight, because there is no so-called light plate guide used need to be the light of the edges of the panel evenly across the area to conduct.
Also, are tv’s with led backlight is more energy-efficient than ccfl tv’s. Hence, direct-lit led backlight is seen as the replacement of ccfl backlight for the low-end.
A disadvantage of this method, the leds behind the panel is that the light distribution is less equal than both ccfl-backlight and edge-lit led backlight. To solve this, through the leds to provide opzetstukjes that the light diffuser, but the patents for this are in the hands of Japanese companies. Licensing fees for this technology will be the prices of tvs with direct-lit led backlight to increase, as expected, Digitimes.
Currently, the difference in production price between the 32″displays with ccfl backlight and direct-lit led-backlight five to eight dollars, while the cost of tvs with edge-lit led backlight, seven to eight dollars higher than that of tvs with leds behind the panel. Lower costs for light plate guides in the future could cause the market for direct-lit led-backlight less interesting.
Nevertheless, several manufacturers plan to be in 2012 cheap tvs with leds behind the panel, including but not limited to Samsung, the Chinese TCL and Vizio in the United States. Especially in emerging markets such as China will is expected to be much demand for them.
For the western market is direct-lit led backlight, mainly with high-end appliances applied, but this is a significantly higher number of leds used. In addition these tvs feature local dimming. Sharp is the only one who in his new tv-line direct-lit led backlight without local dimming apply. The two released a 70″lcd tv’s and some 80″lcd tv that the company shall have leds behind the panel for better light distribution.