Method of improving viewing angle and contrast of liquid crystal

Details Method of improving viewing angle and contrast of liquid crystal Method of improving viewing angle and contrast of liquid crystal

1997-07-07

1999-10-19

Saras, Steven J.

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

349117, G09G 336

Patent

active

059697008

ABSTRACT:
A novel method of driving an LCD simultaneously provides improved viewing angle and improved contrast. Multiple driving voltages are applied to the LC cell to optimize both the viewing angle and the contrast. A first voltage that is optimized for wide viewing angle is applied to the LCD. A second voltage that is greater than the first voltage is selected to provide maximum contrast in the LCD. The first and second voltages are alternately applied to In the LCD, resulting in a display that has high contrast and a wide viewing angle.

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patent: 5307188 (1994-04-01), Dingwall et al.
patent: 5519523 (1996-05-01), Madakoro et al.
patent: 5596349 (1997-01-01), Kobayashi

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