China LED backlight LCD TV outlet

In CRT TV era, because China TV industry has the world's most complete industrial chain, so China color TV industry glorious moment, remember that a variety of media in the TV industry Chinese exclaimed, with Japanese and Korean TV companies decline. Screaming and feeling sound again, this is the sign China color TV industry four years after the defeat. As for the development of LED backlight error estimation, on network television, the lack of resources too obsessed with the upper reaches of the panel, Chinese color TV industry reshuffle in the update, a new round of technology industry slowly retreated to the edge of the stage.

The status quo of China LED backlight LCD TV

1 China LED backlight LCD TV booming

According to dramexchange (TrendForce) Research Department of WitsView's results show that the two quarter of 2010 Chinese TV brand panel procurement volume, the proportion of LED reached 14.5%, compared to the last quarter of only 4.8% of the proportion of the number of up to 2.7 times.

Table 1 TV brand LED panel procurement ratio

ranking

brand

LED specific gravity (%)

One

TCL

23.1%

Two

Konka

16.2%

Three

Haier

15.3%

Four

Hisense

15.1%

Five

Changhong

14.3%

Six

SKYWORTH

13.2%

Seven

Other

9.5%

Figure 1 LED penetration of TV panel size (source: WitsView China)

2 China LED backlight LCD TV appear prematurely senile symptoms

Despite the vigorous development of China LED backlight LCD TV, but in the beginning of the development of the phenomenon of prematurely senile congenital malnutrition. Mainly in several aspects:

(1) pricing sidelined, industry decision error. Due to the change in the price of the LCD panel industry error judgment and overly optimistic implementation of "home appliances to the countryside" and "new for old" policy of national estimates, the domestic color TV industry have in panel prices are relatively low when a large number of purchase form massive inventory. Since the first half of this year the Taiwan panel production of the liquid crystal panel too much and the South Korean panel enterprises seven generation line depreciation is completed, cost reduced, at the same time this year, foreign investment enterprises to adjust the price strategy, the domestic enterprises generally entered the stage of profit or loss.

(2) due to the development of LED from Japan, Korea, China, Taiwan, the domestic color TV industry exposure and the use of LED is relatively short of time and experience. Domestic color TV industry and academic research on the LED backlight structure, backlight film, light guide plate, heat dissipation materials lack of basic research.

(3) due to the late start, the development of related supporting industries is relatively slow, the production capacity of some key materials is seriously lacking. For example, light guide plate material, light guide plate processing, backlight with diffusion film, antireflection film production capacity is seriously insufficient, heavily dependent on imports in the industry chain.

3 China LED backlight LCD TV sales channel control

According to Suning Appliance released in the second half of, China's color TV industry trends report, the first half of 2008, the number of home appliance chain flat-panel TV shipments have exceeded 60%, in 2008 more than 7. Home appliance chain industry occupies absolute channel control. Chinese analysis of home appliance chain industry can be found since the acquisition of Gome Yongle, Dazhong Electric, triple, home appliance chain industry is more and more to the monopoly, but in the domestic color TV industry still has six equal strength of large enterprises. This led to the formation of two (Gome, Suning) later home appliance chain giant led by the six color TV giant interesting phenomenon. At this point, the color TV industry in the upper reaches of the loss of strategic resources to support the loss of the downstream channel support, but these channels are also owned by foreign investors, the local advantages of the domestic brand instantly disappear.

4 China LED backlight LCD TV panel resources and lack of support for LED resources

China's color TV industry in order to return to the glory of the past, LED backlight TV is a good choice, as long as the strategy is right, it is entirely possible. But we should pay attention to two soft rib: one is the panel; the two is LED. Panel industry both in the industry or the government level are considerable attention. However, as an indispensable resource of LED backlight LCD TV, LED has not attracted enough attention.

Two, China LED backlight LCD TV technology development trend

Low power of 1 white LED backlight

A significant feature of LED backlight is energy saving. If the domestic brands can make some differentiated products in terms of energy consumption, and the use of national standards, such as energy consumption grade marking policy mandatory for some high energy consumption products make some constraints, in order to win valuable buffer space for domestic brands. 42 inches of a domestic brand products have been in this area a useful attempt.

2 white LED backlight high color saturation

CCFL backlight LCD TV color saturation is generally at 72% NSTC. This color saturation is a significant setback compared to the traditional CRT. The current white LED color saturation is generally between 72% ~ 85%. If you want to improve the difficulties. If the domestic color TV industry in the white LED backlight (perhaps to take violet +R+G+B fluorescent powder, see experimental results at a research institute in Taiwan) made the first color saturation close to CRT products, set off a new storm in the market.

3.RGB LED backlight is a great opportunity for Chinese LED LCD TV backlight

From the development history of LCD backlight