LIQUID CRYSTAL DISPLAY DEVICE

PROBLEM TO BE SOLVED: To eliminate unequal luminance by correcting the luminance ramp which arises from the drop of a liquid crystal drive voltage with an increasing distance from the power feed end of scanning electrodes by the drive voltages of signal drivers of a simple matrix liquid crystal pane...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	MATSUNAMI MASAHITO
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 FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS SEALS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To eliminate unequal luminance by correcting the luminance ramp which arises from the drop of a liquid crystal drive voltage with an increasing distance from the power feed end of scanning electrodes by the drive voltages of signal drivers of a simple matrix liquid crystal panel. SOLUTION: The upper signal driver 12, the lower signal driver 15 and a scanning driver 17 are connected to the simple matrix liquid crystal panel 10 having the plural scanning electrodes and plural signal electrodes. The liquid crystal drive voltages formed in a power source circuit 19 are supplied from the signal drivers 12q, 15q and are supplied to the successively cascade connected signal drivers 12, 15 on the left side. The distribution of the drive voltages is generated by the distribution resistors of signal voltage connecting lines 21, 22. If the device is constituted in such a manner, the offsetting of the effective drive voltages impressed to the liquid crystal cells of arbitrary cells with the decreased components at the scanning electrodes and the increased components at the signal electrodes is made possible.