DRIVER, ELECTRO-OPTICAL DEVICE, AND ELECTRONIC APPARATUS

To provide a driver and the like that can change a range of a voltage driving pixels without changing the number of gradations.SOLUTION: A driver 100 includes a first driving circuit 60 and a second driving circuit 70. The second driving circuit 70 includes an operational amplifier 71, an output cap...

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Bibliographische Detailangaben
Hauptverfasser:	MORITA AKIRA, BANSHO RYOTA
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION BASIC ELECTRIC ELEMENTS CRYPTOGRAPHY DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DISPLAY EDUCATION ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS SEALS SEMICONDUCTOR DEVICES TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	To provide a driver and the like that can change a range of a voltage driving pixels without changing the number of gradations.SOLUTION: A driver 100 includes a first driving circuit 60 and a second driving circuit 70. The second driving circuit 70 includes an operational amplifier 71, an output capacitor CQ, a first feedback capacitor Cfa, and a second feedback capacitor Cfb. One end of the output capacitor CQ is connected with an output node of the operational amplifier 71, and the other end is connected with a signal supply line. One end of the first feedback capacitor Cfa is connected with an inverted input node of the operational amplifier 71, and the other end is connected with the signal supply line. One end of the second feedback capacitor Cfb is connected with the inverted input node of the operational amplifier 71, and the other end is connected with a predetermined potential node. At least one of the first feedback capacitor Cfa and the second feedback capacitor Cfb is a capacitor with a variable capacitance value.SELECTED DRAWING: Figure 4 【課題】階調数を変えることなく画素を駆動する電圧の範囲を変更できるドライバー等を提供すること。【解決手段】ドライバー１００は、第１駆動回路６０と第２駆動回路７０とを含む。第２駆動回路７０は、演算増幅器７１と出力キャパシターＣＱと第１フィードバックキャパシターＣｆａと第２フィードバックキャパシターＣｆｂとを含む。出力キャパシターＣＱの一端は、演算増幅器７１の出力ノードと接続され、他端は、信号供給線と接続される。第１フィードバックキャパシターＣｆａの一端は、演算増幅器７１の反転入力ノードと接続され、他端は、信号供給線と接続される。第２フィードバックキャパシターＣｆｂの一端は、演算増幅器７１の反転入力ノードと接続され、他端は、所定電位ノードと接続される。第１フィードバックキャパシターＣｆａ及び第２フィードバックキャパシターＣｆｂの少なくとも一方は、容量値が可変のキャパシターである。【選択図】図４