LCD TV backlight: LED is expected to replace CCFL

LED backlight to replace CCFL is certainly the trend. From last year to this year, more and more LED terminal applications. But LED to replace CCFL, the high cost is the most difficult to overcome the problem, but from the technical point of view, the problem of high cost can be solved.

AUO executive Chen Xuanbin said recently, due to the requirements of environmental protection and energy saving terminal customers, will be completely replaced by LED in 2011 and NB (light emitting diode) backlight module (notebook computer), and because the application speed of LED application monitors and TV products will accelerate, choose the appropriate time to intervene in auo. Previously, Hisense launched the world's thinnest 42 inch LED LCD TV, the thickness of only 55 mm. LED panel for the rapid development of LCD TV has injected new vitality, a comprehensive alternative to CCFL (cold cathode lamp) is also possible.

Alternative CCFL becomes possible

LED is the future of CCFL, since last year, SONY in Japan exhibition demonstrates the use of LED backlight technology 70 inch LCD TV, Samsung for the global market, released the 70 inches of the LED backlight LCD TV technology, this year more and more news about LED.

BOE technology group, an independent director of Limited by Share Ltd, Zhang Qiang, senior engineer told the China Electronics News reporter: compared to CCFL, the advantages of LED technology is more obvious. LED can do very thin tube, which is CCFL can not do. And LED can also reduce energy consumption to 50% of CCFL. In addition, CCFL color saturation can only reach 70%, and LED can reach up to 100%. "

According to the reporter, as early as 2005, SHARP took the lead in the global launch of the first using LED backlight technology LCD (LCD TV), China's color TV manufacturers Konka TCL, you have to follow the development of LED TV, but unfortunately, there has been no more on the LED news.

In October last year, LED technology industry has taken an important step, first in CEATECJAPAN2007 (Japanese high-tech Expo), SONY unveiled the latest using LED backlight technology 70 inch BRAVIA LCD TV, then come to the global market Samsung launched the same using LED backlight technology 70 inch LCD tv.

In addition to the technology between Chinese and foreign manufacturers, Hisense said it would build a LED production line in September 19th last year released the next 5 years of planning, Tsinghua Tongfang last year for the purpose of financing has put the development of LED as one of the key contents. Hisense this year to honor its promise, in July this year released the world's thinnest 42 inch LED LCD TV, the thickness of only 55 mm.

Recently, the upstream panel makers AUO photoelectric general manager Chen LaiZhu expresses, will be a year ahead full use of LEDNB (notebook computer) backlight module, and because the application speed of LED application monitors and TV products to accelerate, AUO will choose an appropriate time to intervene.

Market research firm iSuppli released a research report pointed out that although the cost of LED backlight module (BLU) is still much higher than the traditional CCFL module, but the cost of the two is rapidly approaching, the advantages of LED increasingly obvious. Global LED sales are expected to reach $12 billion 300 million in 2006, the compound annual growth rate will reach 14.6% during the period -2012, which is one of the most important applications in the LCD TV market in.

Domestic manufacturers have initially involved

It is understood that China's current LED upstream production enterprises are mainly Shenzhen, Shanghai and Jiangxi LIAN blue; the middle production enterprises are mainly Shenzhen, Hebei Segotep, Hangzhou Chuangyuan quantum; downstream production enterprises are mainly Xiamen Hualian, Foshan photoelectric. Although the Ministry of science and technology has also been approved in Shanghai, Dalian, Nanchang, Xiamen, Shenzhen, the establishment of 5 LED industrial base, but most of them are used for semiconductor lighting.

According to iSuppli's forecast, LCD TV market is one of the largest LED backlight market. Liu Peizheng, former Secretary General of the China optical photonics industry association, said: OLED (organic light-emitting diode), the mainland color TV manufacturers will be more likely to bet on the future LED body. "

And expert opinion is different, the mainland manufacturers to follow up the speed is not very fast. In addition to Tsinghua Tongfang fund-raising 2 billion yuan in April focused on the LED industry, only Hisense will be landing the technology. LED is very concerned about the backlight technology, TCL, Konka and other companies are now no audio.

Moreover, recently on the OLED product news, Samsung Electronics announced its first high-profile future OLED TV development strategy, after the first listing is SONY 11 inch OLED TV and Matsushita revealed before 2012 production will be 37 inches OLED tv. In terms of capital investment, many corporate decision-makers are in a wait state.

Insiders told reporters, back light technology investment enterprise LED need to spend more cost, the effect is also slow, which makes many enterprises cannot resolve this investment, and most enterprises to invest money in the short term high project. The Milky Way securities analyst Zhu Lijun told reporters China "electronic newspaper", color TV enterprises invested in mainland TV business, but dropped the short-term profit of good real estate and shares hit, this is not a long way.

High cost problem can be solved

Whether it is OLED or LED, for the lack of profitability of the mainland color TV companies, the current problem is to solve the problem of funding. Although the profit is thus easing as pressing danger choice in the new play involuntarily, but in the long term, the TV is still the main business, so for this market breakthrough is sooner or later have to face the problem.

The mainland enterprises have not seen a major cause of action is LED