ACTIVE MATRIX DISPLAY DEVICE

PROBLEM TO BE SOLVED: To restrain an active matrix display device from deteriorating in image quality due to the variation of a feedthrough voltage by a method, wherein parameters such as entire pixel capacity, an inter-gate/drain capacity, an on/off difference of a gate voltage, a feedthrough volta...

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Bibliographische Detailangaben
Hauptverfasser:	NAKAJIMA SETSUO, AWANE KATSUTERU, MORITA TATSUO
Format:	Patent
Sprache:	eng
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:	PROBLEM TO BE SOLVED: To restrain an active matrix display device from deteriorating in image quality due to the variation of a feedthrough voltage by a method, wherein parameters such as entire pixel capacity, an inter-gate/drain capacity, an on/off difference of a gate voltage, a feedthrough voltage, and a voltage required for a single gradation are set, so as to meet specific conditions. SOLUTION: Pixel electrodes are arranged in matrix in blocks of more than several hundreds × several hundreds, and a thin-film transistor 206 is provided to each of the pixel electrode to constitute an active matrix circuit 205. In the thin-film transistors 206 provided to the active matrix circuit 205 formed as above, provided that parameters such as entire pixel capacity, an inter gate/ drain capacity, an on/off difference of a gate voltage, a feedthrough voltage, and a voltage required for a single gradation are represented by Ct, Cgd, ΔVg, ΔVs, and ΔVgr respectively, the parameters are so set as to satisfy a formula. By this setup, an active matrix display device of this constitution can be restrained from deteriorating in image quality due to the variation in the feedthrough voltage.