Liquid crystal apparatus and method of driving same

Details Liquid crystal apparatus and method of driving same Liquid crystal apparatus and method of driving same

1994-02-28

1998-08-18

Lao, Lun-Yi

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345209, 345 97, G09G 318

Patent

active

057963800

ABSTRACT:
A liquid crystal apparatus includes a liquid crystal panel in which pixels are arranged along a plurality of rows and columns and a thin-film transistor is connected to each pixel. During a first field scanning period, a reset pulse of a single first polarity is supplied to the pixels to non-selectively erase the pixels along odd rows, and a write pulse of a polarity opposite to that of the reset pulse is supplied selectively to the pixels for writing on the pixels along even rows, the pixels supplied with the reset pulse being maintained at a voltage based on the reset pulse throughout the first field scanning period. During a second field scanning period subsequent to the first field scanning period, the write pulse is supplied selectively to the pixels for writing on the pixels along the odd rows, and the reset pulse is supplied to the pixels for non-selectively erasing the pixels along the even rows. The pixels supplied with the reset pulse are maintained at a voltage based on the reset pulse throughout the second field scanning period. A period of time from application of the reset pulse to a pixel to application of the write pulse to the same pixel is equal to a period of time from application of the write pulse to a pixel to application of the reset pulse to the same pixel.

REFERENCES:
patent: 4840462 (1989-06-01), Hartmann
patent: 5011269 (1991-04-01), Wakita et al.
patent: 5040874 (1991-08-01), Fukuda
patent: 5041821 (1991-08-01), Onitsuka et al.
patent: 5136282 (1992-08-01), Inaba et al.

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