LED backlight technology dispute: side LED white light temporarily leading

When Samsung earlier this year released a full range of LED throw the helve after the hatchet (light emitting diode) LCD TV, a lot of people are surprised; half a year later, when the LED TV rapid warming in the global market, colleagues and admiration of the prophetic vision of Samsung marketing. LED LCD TV rapid popularization, Samsung contributed, because it provides a direct solution to significantly reduce the cost of LED TV - white light side into the LED tv.

As CCFL (cold cathode fluorescent lamp) upgrade perfect backlight LED backlight technology, since the introduction of highly respected Sony, SHARP, Samsung and other TV giants, these enterprises have also invested heavily in R & D cost reducing technology. When Sony, SHARP is committed to the quality of the perfect color RGB-LED of the cost reduction program, but Samsung Zoupian Jian Feng, launched the first white light source, but also with the lateral structure of the light emitting instead of direct type, though not perfect, but boosting the popularity of LED LCD tv.

RGB-LED high cost short-term difficult to drop

Any good technology, in order to be widely used, must greatly reduce costs. This time, the color TV market is one of the most popular vocabulary LED, four or five years ago, the technology has been sensational because of the sharp decline in manufacturing costs, the protagonist of this year's market.

Open the history of the development of LED technology, it is not difficult to find, LED LCD TV today popular, and color TV manufacturers know how to give up is closely related.

LED backlight technology has 3 kinds: straight down three color RGB-LED light source, straight down white LED light source and side white LED light source. Among them, the first appearance of the three color RGB-LED technology.

Compared with the traditional CCFL backlight technology, the advantages of RGB-LED TV is mainly reflected in the color and contrast of the two aspects: due to the use of RGB color independent light emitting component, so the color gamut of RGB-LED TV can reach more than 120% of the NTSC, after a good part of adjustment of the model can even reach the color gamut of around 150% of the total reach or exceed the level of plasma tv.

In addition, RGB-LED TV can also support backlight area adjustment technology, it is very easy to achieve brightness adjustment, in contrast, which tend to be able to achieve a dynamic contrast of tens of millions, which has a very important role in improving the image quality of the tv.

RGB-LED technology has obvious advantages, so Sony, SHARP and Samsung global TV giant altogether invested heavily in R & D. In the past few years, Sony, Samsung, SHARP have launched a number of RGB-LED based products, but the price is too high. From there to now, although the RGB-LED technology after years of development, but the cost is not reduced, substantial slowly, these enterprises have reduced the development of RGB-LED technology, RGB-LED in the voice of the market is more and more small.

Reporters learned that the previous main push of a few large enterprises RGB-LED LCD TV, are now doing white LED TV, such as the 8000 Series LED LCD TV Samsung released earlier this year by the side into the white, launched by SHARP is the use of white LED light source LE700 series, the latest Sony released KLV-40ZX1 TV is the use of white LED backlight. In the meantime, although SHARP also launched a small amount of RGB-LED products, but as SHARP high-end products on sale, the price is expensive, there is no market penetration possible.

Next year is expected to significantly reduce costs

Technically speaking, RGB-LED is perfect, but the high cost problem has been difficult to overcome, in contrast to the various costs, we will focus on the development of white LED light source in recent years. Samsung Electronics digital imaging research and development center, Cheng Hong, Liu told reporters.

In contrast, RGB-LED color gamut performance was slightly better, the disadvantage is high cost, the price of finished TV is still difficult to let consumers accept; white LED light source, although the color gamut is a little weaker than RGB-LED, but its relatively high contrast and can bear the cost of RGB-LED can not be compared.

From the end of last year, the use of white LED backlight LCD TV will continue to appear in front of people. The reporter statistics found that Samsung series 8000 all the white side entering type LED backlight; Hisense LED TV medium blue with white light direct type LED backlight; SKYWORTH launched in the national day before the cool white light direct type ultra-thin LED TV, 26 inch -47 inch full cover series. Other manufacturers, including Sony, SHARP, Konka, Changhong, with the parties have launched their own white light LED LCD tv.

According to DisplaySearch research company, the annual decline in the price of white LED light source at least 20% white LED LCD TV, light occupy cost more than its 1/3, which will inevitably lead to the future of LED TV there will be great price space and market penetration may. At present, the use of white LED light source LCD TV price is 1.5 times the ordinary CCFL backlight LCD TV, next year is expected to fall to about 1.2 times, so as to achieve a comprehensive replacement for CCFL. Konka multimedia marketing division general manager Huang Xinzhong told reporters.

The white LED light source will continue to price optimism is not just the end of the whole enterprise (Shenzhen) Co., Ltd. photoelectric Weizhi Yao Zhitu even said: "in the next few years, white LED backlight cost will be cheaper than CCFL back now. "

In addition, the terminal companies to increase investment, but also conducive to reducing the cost of white LED LCD tv. Recently, the same side of the shares are planning to build the country's largest LED industrial base. It is reported that the project initial investment of nearly 1 billion yuan