TFT-LCD delivers high transmittance wide viewing angle and high speed response

15th May 2006
Posted By : ES Admin
TFT-LCD delivers high transmittance wide viewing angle and high speed response
Toshiba has announced the development of a new TFT-LCD that delivers high transmittance, a wide viewing angle and high speed response by combining Optically Compensated Bend (OCB) and Field Sequential technologies. Field Sequential technology does not require colour filters, differing from general colour LCDs.
As a result, the Field Sequential method enables high transmittance without any absorption loss. In the colour filter method, more than 70% of back light brightness is absorbed by colour filters. Field Sequential technology also delivers up to three times higher resolution by not dividing each pixel; the colour filter method use three subpixels which combine to form one RGB pixel.

This technology has great advantages but must be driven at least three times as fast in order to show RGB signals, so a high-speed response LCD is indispensable to realize its full performance.
Accordingly, Toshiba has combined the high-speed response characteristics of its OCB technology with Field Sequential technology to develop an LCD that provides: high transmittance (2.6 times higher than the company’s previous OCB panels); low power consumption; a wide viewing angle (Upper/Lower 170 degree, Left/Right 170 degree); and fast response (3.3ms). This results in an LCD with high brightness and ultra high resolution that is suitable for applications including mobile AV.

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