We developed 0.7 inch VGA TFT-OLED with a 64 gray-scale integrated driver circuit. The TFT-OLED has good image uniformity due to digital operation. Control in a time-ratio was useful for achieving large gray-scale level. Our simplified pixel configuration accomplished high resolution.

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We propose a novel type of digital driving manner of TFT-OLED display by time-ratio gray-scale (TRG) expression. The advantage of this is remarkable especially in large, color, or highresolution TFT-OLED displays. A 4.0-in. TFT-OLED monochrome display employing this sophisticated digital driving method is demonstrated.

inch HDTV panel has been developed on the CORNINNG 1737 glass substrate using low temperature CG Silicon (Continuous Grain Silicon). This time we have fabricated TFTs using CG Silicon which uses crystallization with metal catalyst (Ni) and the process to remove this catalyst from channel regions by gettering below 550[ o C].

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