Liquid crystal display device and a driving method employing...

Details Liquid crystal display device and a driving method employing... Liquid crystal display device and a driving method employing...

2005-07-19

2005-07-19

Lefkowitz, Sumati (Department: 2675)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S096000, C345S089000, C345S211000

Reexamination Certificate

active

06919869

ABSTRACT:
A control circuit receives the digital input data of n-bit and controls horizontal drivers so as to provide a liquid crystal panel with voltage corresponding to the input data during a 1H cycle based on standard voltage. In addition, the control circuit creates gradation data by inverting each bit of the input data and controls the horizontal drivers so as to provide the liquid crystal panel with voltage in response to the output gradation data during the subsequent 1H cycle. In this case, gradation-γ correction voltage relation is symmetrical with respect to a point in the center between the top gradation step and the bottom gradation step.

REFERENCES:
patent: 4789223 (1988-12-01), Kasahara et al.
patent: 5365284 (1994-11-01), Matsumoto et al.
patent: 5751267 (1998-05-01), Sato et al.
patent: 6075477 (2000-06-01), Kokubun et al.

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