AV用TFTパネルの低電圧駆動法について

概要

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This paper describes the driving method for AV TFT-LCD with low voltage source driver. First, we developed analog source driver in low voltage process. Currently the analog source driver which was supplied with 13 voltages produced in middle voltage process, but low voltage driver is only supplied with 5 voltages. It results that, the chip size could be reduced to 60 %. And the power consumption is reduced to 1/3. We must change peripheral circults in order to use low voltage analog driver. 13 voltage operation system has brightness adiustment which was changed by video amplitude. However, 5 voltage operation system is changed by common electrode amplitude. Adiusting brightness change γ correction characteristics at 2 points. It results that, display characteristics becomes better.
社団法人映像情報メディア学会の論文
1995-05-11