Analysis: challenges faced by LED backlight popularity

22 widescreen LCD W2286L upcoming LG, 24 widescreen LCD and W2486L, DELL has launched G Series LCD G2210 and G2410 using LED backlight has a high popularity. Although the LED backlit LCD display on the market for nearly two years, but only to get people's attention, the real number of users do not buy?

Barricade: high cost

Whether netbook or notebook computer, the screen size is basically in 15 inches, and use white LED relatively low cost. Because they are equipped with LED backlight module size is relatively small, the cost and CCFL backlight gap is not too large. And the LCD screen size is basically in 22 inches or more, the actual area of the screen than the notebook computer products several times or even more, so even if the backlight module of LED relatively low cost, the price is more expensive for many.

Three color LED backlight module price is still expensive

As three color LED backlight module in the structure than ordinary white LED is more complicated, so it cost much more expensive. ViewSonic launched the first three color LED backlight LCD consumer level VLED221wm as an example, the LCD screen size is 22 inches, the screen ratio of 16:10, but its listing price is up to NT $6999 yuan, while the ordinary 22 widescreen LCD price of NT $2000. At present, although the price of VLED221wm has been lowered to NT $2700, but now the mainstream of the 22 widescreen LCD prices have dropped to $1200, you can see the cost of three color LED backlight is relatively expensive.

Compared with three color LED backlit LCD display, the use of ordinary white LED LCD prices are relatively cheap, but still much better than the price of similar efficacy of CCFL liquid crystal display your hundreds of yuan. In the current economic environment is not optimistic about the situation, consumers tend to pay more attention to the price of the product, more willing to buy cheaper CCFL backlit LCD display.

Two - color control is not accurate roadblocks

Many people have the misconception: LCD with LED backlight will have more rich color gamut, but that is not the case. White LED backlight CCFL backlight with the same general did not join the phosphor material, generally only provides about 72% of the NTSC color gamut. If the use of three color LED backlight, LCD color gamut can easily reach 100% or more, such as ViewSonic VLED221wm color gamut value of 118%.

The user mapping but used the consumer will find a wide gamut, wide color gamut common liquid crystal display can provide more rich color, but by the IC display chip, most models have a wide gamut color phenomenon, or color is too saturated, color reduction is not particularly accurate so, for some high precision color graphics or professional users, so that the liquid crystal display is clearly unable to meet their demands.

And to have a more broad color gamut of LED backlight, if you want to control the color more accurately, more on the liquid crystal display IC control requirements and capabilities. So we generally use a spider or Eyeone color instrument on consumption level three color LED backlight LCD and LCD TV is tested, will find the color gamut graph of the red triangle or other colors will be issued an excessive overflow phenomenon.

- three roadblocks upstream vendor equipment renewal and market demand

Upstream panel makers and backlight module manufacturers have been in production for CCFL backlight module, the production equipment is imported for the production of CCFL backlight, after several years of production and use, the upstream manufacturers have gradually profits, and in equipment has not yet reached the age when manufacturers also hope they can create more profits for themselves. But whether it is the production of white LED backlight or more high-end color LED backlight, CCFL backlight module and require the use of different production equipment, if immediately to the mass production of LED backlight module, the module manufacturers must be replaced with new equipment, and CCFL module production equipment will all be ruined "existing". It is clear that the need for modular manufacturers to spend huge costs, for any one person when the boss, no one will immediately make a decision.

Module factory some abundant funds, will continue to maintain sufficient capacity in the production of CCFL backlight, LED backlight will gradually introduce new production equipment, which will gradually CCFL backlight production equipment to replace the traditional. But this process can take a long time to realize, not in a day.

Currently on the market sales of LED backlight LCD more role is to test the water

And backlight module production plant upstream of this strategy, will cause the LED backlight panel panel plant production capacity is relatively small, and further affect the display manufacturers downstream. In addition, many display manufacturers in the field of LED backlight still belongs to test the water phase, the introduction of a relatively small number of products, and there are few main models. Such as Samsung, LG display manufacturers are still cautious, has not yet launched consumer class LED backlit LCD display. Therefore, consumers buy the space has been greatly compressed, and consumers will think, LED backlight LCD does not have to purchase, ordinary CCFL LCD can fully meet their needs, and the price is cheaper, so the user has