LED TV market still need to break through the bottleneck of the start

This year LED (light-emitting diode) TV seems to have become a hot industry. It is understood that the current push LED backlight TV enterprise increasingly, and has covered many dimensions, but due to the LED backlight TV price than the traditional CCFL (cold cathode fluorescent lamp) backlight TV is much higher, so the LED TV market size really needs at least three or four years.

Manufacturers sought after LED LCD TV

Although there is no problem to solve the problem of high cost, but from the beginning of this year, the reporter clearly felt the pace of domestic and foreign TV manufacturers to promote the rhythm of LED tv.

In early 2009, the domestic enterprise Hisense launched LED TV, followed by Samsung in the Chinese market launched 3 series of a total of 9 new LED LCD tv. Due to the use of side light LED technology, the thickness of the body to reach the finger thickness of 2.99 cm, the screen size to 40 inches, 46 inches and 55 inches of the main size. Subsequently, SONY showed only 0.99 cm thickness of the ZX1 series LED LCD tv. Recently, in the field of LED has long been involved in Tsinghua Tongfang also released its 32 inch LED TV, a small size of the market highlights.

If a lot of companies are only in the city, then the domestic and foreign manufacturers 7, August undercurrent surging, it is obvious that during the national day of the company to promote the generous attitude of LED tv. In late July, Samsung Electronics in the China market high-profile launched a new 3 series of 9 new LED TV; in August 4th, SHARP also released the LE700A series 3 LED LCD TV; in early August, Hisense announced that the 47 inch LED LCD TV retail price down to 9999 yuan, this is the 47 inch LED TV for the first time below million yuan, while Hisense LED LCD TV size has been expanded to 42 inches, 47 inches and 55 inches.

Samsung Electronics China headquarters color TV product marketing Li Mingxu told the "Chinese electronic newspaper" reporter, 46 inches, 55 inches is the key size of Samsung LED TV promotion, 40 inch LED TV promotion cost is high, not much significance.

Yang Dongwen, vice president of SKYWORTH group, said the president of the cause of color TV, SKYWORTH experienced a painful diversification, and ultimately decided to take root in the TV industry, invest 2 billion yuan to enter the LED backlight LCD tv.

Chi Mei deputy director of electronic Limited by Share Ltd TV panel general Hong Maosheng to "cause China electronic newspaper" reporter revealed that the current number of machine manufacturers on the LED panel is contact with CMO, estimated the day before and after LED TV will be a large number of listed.

The reporter statistics found that in LED backlight TV field, in addition to Hisense, SKYWORTH, Haier, there are Samsung, SONY, SHARP, LG and other TV manufacturers have launched related products, and has entered the market. Konka, TCL are said to be listed in the national day before the LED LCD tv.

Study on Chinese Electronics Technology Group Third senior engineer Liu Quanen said that two years ago, a breakthrough in the LCD TV with LED backlight technology, a large number of research on reducing LED using a number of techniques, the 52 Inch LCD TV panels to LED from the original number of more than 1 thousand dropped to more than and 30, greatly reducing the cost. I believe LED backlight can be more widely used in LCD TV, LCD TV image quality to a new level.

Cost control is still a problem

Some manufacturers are afraid to start later than other manufacturers, but also to speed up the pace of LED TV, but in terms of cost control, there are few successful cases of classic.

Reporter statistics found that, due to the low production rate of LED backlight production technology, the cost is too high, resulting in high cost of the machine.

Currently on the market sales of LED TV than the same size, with the configuration of the use of CCFL backlight TV to about 50%. And the larger the size is the greater the price difference, such as a 55 inch LED TV price of up to $39999, while the same size of CCFL LCD TV, priced at around $19 thousand, the price is almost a difference of 1 times.

It is understood, LED backlight technology in accordance with the classification, can be divided into RGB-LED (three color LED) and white LED. RGB-LED by the red, green, blue tricolor LED modulation into white light, has the best optical properties. Although the RGB-LED TV performance is very good, but it is not perfect in every respect: the first is the cost of second is not a great advantage, the heat dissipation structure RGB-LED dimming circuit and to better separate, this will lead to a certain extent, TV structure is complex, difficult to thin.

In this context, many companies began to choose to replace the white LED RGB-LED. Deputy general manager of Qingdao Hisense electric Limited by Share Ltd marketing company Wang Yunli told reporters: "China electronic newspaper" "white LED compared to RGB-LED has obvious cost advantage, Hisense is currently pushing white LED tv. "

However, the reporter learned that, although the white LED TV compared to the lower cost of RGB-LED TV, but its spectral properties and RGB-LED compared to some of the lack of.

At present, another technology to reduce the cost of the backlight module is to change the incident location of the light source, the mainstream technology has direct and side into the two. It is understood that the direct type backlight source has the advantages of simple process, does not need the light guide plate, LED array in a box at the bottom, from the light emitted by the LED through the bottom and side reflection, then through the diffusion plate surface and the optical module uniform injection. But the cost of this technology is relatively high, on behalf of the technology vendors such as Hisense.

The side light backlight module is arranged on the side of the light guide plate which is specially designed