DRIVER, ELECTRO-OPTICAL DEVICE, AND ELECTRONIC APPARATUS
To provide a driver and the like that can correct the voltage difference between the voltage of a signal supply line and a target voltage caused by the time taken by the voltage of the signal supply line to reach the target voltage.SOLUTION: A driver 100 includes: a data voltage output terminal TVQ;...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | To provide a driver and the like that can correct the voltage difference between the voltage of a signal supply line and a target voltage caused by the time taken by the voltage of the signal supply line to reach the target voltage.SOLUTION: A driver 100 includes: a data voltage output terminal TVQ; a capacitor driving circuit 20 that outputs first to n-th capacitor driving voltages corresponding to gradation data to first to n-th nodes for driving capacitors; a capacitor circuit 10 that has first to n-th capacitors provided between an output node NVQ and the first to n-th nodes for driving capacitors; a processing circuit 42 that generates a correction signal SGC for correcting the voltage difference between an output voltage VQ and a target voltage corresponding to the gradation data; and a correction circuit 95 that corrects the voltage difference with a correction voltage corresponding to the voltage difference by injecting electric charges corresponding to the correction signal SGC to the output node NVQ or discharging the electric charges from the output node NVQ by using a capacitor circuit for correction.SELECTED DRAWING: Figure 2
【課題】信号供給線の電圧が目標電圧に到達するのに時間がかかることによる信号供給線の電圧と目標電圧の電圧差を補正可能なドライバー等を提供すること。【解決手段】ドライバー100は、データ電圧出力端子TVQと、階調データに対応する第1~第nキャパシター駆動電圧を第1~第nのキャパシター駆動用ノードに出力するキャパシター駆動回路20と、出力ノードNVQと、第1~第nキャパシター駆動用ノードとの間に設けられる第1~第nキャパシターを有するキャパシター回路10と、出力電圧VQと階調データに対応する目標電圧との電圧差を補正するための補正信号SGCを生成する処理回路42と、補正用キャパシター回路を用いて、補正信号SGCに対応する電荷を出力ノードNVQに注入又は出力ノードNVQから排出することで、電圧差に対応した補正電圧で電圧差を補正する補正回路95と、を含む。【選択図】 図2 |
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