[FPD International] AUO's 3 New LCD Panel Technologies: 5,000:1 Contrast Ratio, 2cm Thickness, 1/2 Power Consumption

Oct 17, 2007
Masao Oonishi, Nikkei Microdevices
The latest 2cm-thick 32-inch flat LCD module, left, and the existing 32-inch module
The latest 2cm-thick 32-inch flat LCD module, left, and the existing 32-inch module
[Click to enlarge image]
The latest 2cm-thick 32-inch flat LCD module, left, and the existing 32-inch module
The latest 2cm-thick 32-inch flat LCD module, left, and the existing 32-inch module
[Click to enlarge image]

AU Optronics Corp (AUO) of Taiwan developed three new panel technologies for LCD TVs.

The technologies will be demonstrated at FPD International from October 24, 2007 in Yokohama Japan. These technologies feature a high contrast ratio of 5,000:1, they are only 2cm thick and their power consumption has been reduced by half.

First, AUO developed a panel equipped with the third-generation AMVA technology that allows a native contrast ratio of 5,000:1. The development was achieved with the adoption of the new pixel design, optimized color filter pigments and a technique to integrate the backlight and optical film.

Because the panel uses the existing CCFL backlight, it can be commercialized sooner than the products whose contrast ratio is enhanced by the local dimming technology for LED backlight, the company said.

Then, AUO developed an LCD module whose thickness is reduced from 32.5 to 20mm. To develop the module, the company solved the problem of non-uniformity in luminance resulting form the reduction of thickness by the improvement of optical system.

In addition, the module weight is reduced by 2kg. The 32-, 37- and 42-inch LCD TVs are available by using the module. Volume production is ready to start from the first quarter of 2008, said the company.

Furthermore, based on the improvement of CCFL backlight, AUO developed a technology that can reduce power consumption by up to 50%. The prototype 32-inch LCD TV can provide a contrast ratio of 3,000:1 with a luminance of 500cd/m2, which is equivalent to that of the existing LCD TV of the same size. This technology is also ready to be commercialized from the first quarter of 2008, said the company.

Moreover, AUO reportedly developed a new generation of HiColor technology for displaying multiple primary colors using yellow and cyan in addition to RGB.