Liquid crystal display device for reducing unevenness of display

Details Liquid crystal display device for reducing unevenness of display Liquid crystal display device for reducing unevenness of display

1990-12-19

1993-01-12

Brier, Jeffery A.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340805, 359 55, G09G 336

Patent

active

051793717

ABSTRACT:
A liquid crystal display device applying a scanning voltage wave to a plurality of scanning electrodes and a signal voltage wave to a plurality of signal electrodes to selectively render visible display elements defined at the intersection of scanning electrodes and signal electrodes, and superimposing a correcting voltage upon at least one of the scanning voltage wave and/or the signal voltage wave in order to eliminate unevenness of display. The correcting voltage to be superimposed upon the signal voltage wave and/or the scanning voltage wave is determined and weighed in accordance with the positions from the end portion of the scanning electrode group applied with the scanning voltage wave and/or the positions from the end portion of the signal electrode applied with the signal voltage waveform, of display elements to be rendered visible.

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