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Product category: LCD Modules
News Release from: Toshiba Electronics Europe | Subject: TMD OCB TFTs
Edited by the Electronicstalk Editorial Team on 16 May 2006

New structure boosts TFT performance

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A novel TFT-LCD delivers high transmittance, a wide viewing angle and high speed response by combining optically compensated bend and field sequential technologies.

Toshiba Matsushita Display Technology (TMD), the leading manufacturer of thin-film transistor (TFT) LCD modules for mobile applications, has developed 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

Therefore, 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 realise its full performance.

Accordingly, TMD 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 (170 degrees in all four directions); and fast response (3.3ms).

This results in an LCD with high brightness and ultrahigh resolution that is suitable for applications including mobile AV.

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