Side light white LED backlight will lead the mainstream of the future LCD TV?

A new kind of observation launched from Samsung, Sony, Victor and other recent display manufacturers, side light type white LED backlight LCD TV has become the main development of the main display manufacturers. 2009 South Korea's main push Samsung LED LCD TV backlight, shouting LED backlight TV shipments accounted for 10% of the overall LCD TV shipments. Sony is ahead of other manufacturers in November 2008 sales of 40 inch side light type white LED backlight LCD TV products, the characteristics of the LCD TV's thin only 9.9mm, is currently listed in the model is thin, the product is priced at 490 thousand yen (about $4505). Japan's second tier brands Victor also plans to be listed 32 inch ultra-thin LCD TV in 2009, the Ministry of the thinnest only 7mm, after Samsung 40 inch ~55 inch LCD TV the thinnest 6.5mm, the LED backlight module also adopts the same design with Samsung Electronics and Sony.

Past display manufacturers are mostly direct type RGB backlight LED or direct is white LED backlight, one of the main reasons is that the past LED low luminous efficiency, if the production side light type LED backlight design, is not even leading to a 40 inch LCD panel. Another reason is the monolithic light guide plate size is not corresponding to the large size TV LCD panel size, so that manufacturers adopt direct type LED backlight.

But with white LED light-emitting efficiency, display manufacturers designed LCD TV LED backlight structure gradually shifted to the side light type design. LCD and TV into the side light type white LED backlight module is easy to do good, the use of a thin LED number than the direct type backlight module, direct type structure is simple, coupled with the light guide plate has been done to monolithic 46 inch size, so the import TV with the manufacturer side light type light design LED back light module number is also more and more.

From the Samsung, Sony, Victor three companies launched LCD TV in white LED backlight are placed in the seat, all 4 design patterns, but with the LED luminous efficiency increasing, manufacturers gradually toward the reduction of bar number LED light, and reduce the total number of white LED using a target. Samsung Electronics 40 inches of the thinnest part of the 7.9MM LCD TV, for example, that the white light LED on the LCD panel, placed on both sides of the design.

White LED backlight LCD TV has become one of the mainstream display manufacturers to design, but it is not without drawbacks. For example, the white LED placed on the side, is the problem of excessive concentration of heat treatment; in addition, RGB LED is still far below the luminous efficiency of white LED, it doesn't fit into the side light design; and side light type LED backlight module can not be equipped with area control technology, it is difficult to achieve the purpose of reducing power consumption and improve the image quality.

The LCD TV with LED backlight module design in the form of various types are also now, it is difficult to determine the future of LCD TV with LED backlight in what structure is the mainstream, in fact, display manufacturers introduced design of direct type LED backlight is many, the reason is direct type LED side light type LED backlight irreplaceable advantage. Even so, the past LCD TV rarely used side light type LED backlight has gradually emerged, and display manufacturers to develop this kind of machine speed is not less than the design of direct type LED backlight, say this with "ultra-thin" TV wave gradually, side light type white LED backlight importance and visibility more promotion.