New trend of LED backlight for Samsung white LED outlet TV

Although the LED in the notebook computer applications in rapid development, and many industry insiders expected demand in 2008 will increase 15%, but has been commercialized for LCD TV LED backlight manufacturers are developing new technologies. For example, a new generation of Samsung LCD TV, did not use the original RGB 3 color LED backlight, switched to white LED, Sony is following the QUALIA, after the launch of a higher luminous efficiency of the RGB 3 color LED backlight LCD tv.

Samsung Electronics LED LCD TV to become a leader in the introduction of commercial marketing

Since September 2006, Samsung listed 40 inches, 3 color RGB LED backlight LCD TV, in August 2007 a listed 40 inch and 42 inch, 52 Inch, 57 Inch 4 81 series white LED backlight LCD TV, priced at 3000 to 8000 dollars, the aircraft features stressed the dynamic value of 500 thousand contrast: 1.

Although the white LED as RGB LED to achieve high color saturation, but because the white LED backlight and low cost, can further reduce the gap with the CCFL type, and also can solve the CCFL backlight not easy high dynamic contrast problems. Because LED is a point source because the brightness zoning control, plus the LED maximum and minimum brightness gap can reach hundreds of thousands of times, so even if the Samsung 71 Series LCD TV for CCFL backlight using Scanning Backlight technology, the dynamic contrast to 25000:1, while the 81 series LED backlight LCD TV dynamic contrast value can be greatly increased to 500 thousand: 1.

The white LED used in LCD TV backlight is another advantage of the thickness can be made very thin, Samsung 40 inch ultra-thin LCD TV in late October show in Yokohama, the LCD panel thickness is only 10mm, is better than that of LG (LG. Philips LCD; PHILPS LPL) and published LCD 19.8mm 42 inch panel thickness, CCFL backlight.

Samsung motor Samsung Electronics LED LCD TV main push hands

Samsung recently listed 40 inches to 57 inches of white LED backlight LCD TV, the LED backlight is by Samsung motor (Samsung ELectro-Mechanics) are provided, which is based on the white light LED blue LED chip with red and green fluorescent material composition, although the color saturation as the 2006 listing of 40 inch RGB LED backlight LCD TV 105% is higher. But still reached the level of NTSC 98%.

LED use a number of Samsung Electronics 81 Series 40 inch LCD TV less than 1000 white LED, while the former generation of 40 inches models were used in 2160 RGB LED, this is the Samsung Electronics and Samsung Motors believe that in the short term to narrow the gap between the cost and the CCFL type, leading into the white LED backlight reason.

White LED than RGB 3 color LED has many advantages, including good uniformity, high luminous efficiency, low power consumption, etc..

Sony 70 inch LCD TV with LED backlight efficiency is higher than the previous generation QUALIA models

Sony at 2007 International CES that display a 70 inch LED backlit LCD TV, the aircraft (model KDL-70X700) was listed in November 20, 2007, the sales price of about 4 million yen (about $34807).

Following the November 2004 Sony listed "QUALIA 005" 40 inch and 46 inch LED backlit LCD TV after a lapse of 3 years once again launched the "Bravia" brand 70 inch LED backlight LCD TV, the biggest feature is the luminous efficiency is significantly improved QUALIA models. Because LED is a directional light source, in order to reduce spots or light uneven phenomenon, the previous generation QUALIA models to be "Diverter Plate" in the LED light source above the so-called Diverter Plate, is printed on the sheet elliptical dots, the LED light source was uniformly dispersed; for a new generation of BRAVIA models through the modified LED Lens (lens) above the light distribution pattern, so can save Diverter Plate, plus LED and improve the light extraction efficiency of LED package, the luminous efficiency than QUALIA models increased by 1.6 times, at the same time, the new 70 inch machine LCD TV backlight module power consumption if converted to 46 inch level is QUALIA 46 inches by 1/2, 207W.

Color reproduction, although RGB LED backlight itself can achieve a wide gamut of effect, but to strengthen this characteristic, Sony can choose the color filter for optimum collocation and LED wavelength in BRAVIA 70 inch LCD TV, so the models of NTSC was 126%, slightly higher than the QUALIA 123%.

The 70 inch LED backlight LCD TV Sony currently listed LCD TV series of products, the size of the largest aircraft, Sony developed 70 inch LCD TV, in the face of the rapid shrinking projection TV market, intends to make up for this type of grade 70 inch TV product line vacancy. Sony in the 2007 Japanese fiscal year second quarter (July 1, 2007 to September 30th) financial report will estimate, the rear projection TV in 2007 shipments from the previous quarter estimated the number of 700 thousand, dropped to 400 thousand, the formation of BRAVIA LCD TV in Sony TV Department of a thriving situation.

White LED backlight LCD display has been used in portable products, Samsung can early in a commercial market with CCFL LCD TV to compete, the white LED backlight in LCD TV is different from the price advantage, to provide RGB 3 color LED backlight LCD TV another option; Sony is doing image processing expert image, only launched a 70 inch LCD TV flagship models, but in the LED backlight luminous efficiency greatly improved, in an attempt to advance the RGB 3 color LED backlight LCD TV into the mainstream market.

Consumers pay more and more attention to LCD TV quality performance at the same time, RGB 3 color LED should be the ultimate goal for the LED camp LCD TV backlight source, while the white LED will only be RGB 3 color LED backlight technology matures