METHOD AND CIRCUIT FOR DRIVING MATRIX TYPE IMAGE DISPLAY DEVICE

PURPOSE:To obtain an image of high quality which has no brightness difference generated at the connection between Y driving circuits for the image by correcting a video signal which is inputted to the Y driving circuits with the output signal of a signal comparing means which compares output signals...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	MURAJI TSUTOMU
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION 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 COMMUNICATION TECHNIQUE ELECTRICITY FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION SEALS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain an image of high quality which has no brightness difference generated at the connection between Y driving circuits for the image by correcting a video signal which is inputted to the Y driving circuits with the output signal of a signal comparing means which compares output signals of specific output pins of adjacent Y driving circuits. CONSTITUTION:A video signal outputted from an (m+1)th output terminal of a 1st source driving circuit 2 and a video signal from the 1st output terminal of a 2nd source driving circuit 3 are inputted to a voltage comparator 5, which compares their voltages. When the signal level from the 1st output terminal of the 2nd source driving circuit 3 is higher than the signal level from the (m+1)th output terminal of the 1st source driving circuit 2, a video signal which is inputted to the 2nd source driving circuit 3 is lowered by a video signal correcting circuit 26 so that the (m+1)th signal level of the 1st source driving circuit 2 and the 1st signal level of the 2nd source driving circuit 26 become equal to each other. Therefore, the obtained image has no brightness difference at the connection between the 1st source driving circuit 2 and 2nd source driving circuit 3.