“Technically speaking, RGB-LED TV technology is, can be said, perfect. However, the over-expensive production cost is always a big problem that difficult to overcome. After comparing all sort of costs, we decided to put our focus on white LED light sources. ” said Mr. Pyorong, manager of Electronics Digital Imaging Research and Development of Samsung.
RGB-LED has excellent performances in color gamut but very high production cost relatively. Selling prices of TV sets are hardly accepted by ordinary buyers. White LED light sources are a bit of worse than RGB-LEDs in color presentation, but their relatively high contrast and affordable selling prices (low costs) is incomparable (by RGB-LED TV technology).
Since the end of last year, LCD TV sets using white-ray LED backlight technology continued to swarm into the market. According to statistics, Samsung 8000 series all used white-ray side-lighting LED backlight technology. Hisense Blue Media applied white-ray direct-lighting LED backlight technology. Skyworth introduced before the National Day the white-ray direct-lighting super-thin LED TV sets, covering all range from 26 inches to 47 inches. Other manufacturers, including Sony, Sharp, Konka, Changhong, Tongfang all promoted corresponding white-ray LED LCD Televisions.
Statistics from DisplaySearch shows that the price of white-ray LED light sources dropped more than 20% every year. Within white-ray LED LCD TVs, the production cost of white-ray LED source occupies more than 1/3, which will inevitably lead to huge price cut and popularization of LED TVs in the future. At present selling prices of TV sets using white-ray LED backlight technology is 1.5 times of ordinary CCFL backlight LCD TV sets. It is expected that this difference will fell to about 1.2 times next year, and achieve a comprehensive replacement to CCFL.
Not only application makers are optimistic about the white-ray LED Tunnel Light sources, even mid-stream packaging companies pay high attention on this part. In the next few years, the cost of white-ray LED backlight technology would certainly be lower than CCFL.
In addition, terminal application enterprises increased investment, which helped to keep the cost down. Recently, Tsinghua Tongfang is planning to build the largest LED industry base in China. It is reported that the initial investment of this plan is nearly 10 billion yuan, and the annual output value will reach up to 100 billion yuan.