Driving circuits for display device

Details Driving circuits for display device Driving circuits for display device

2004-06-30

2009-11-10

Awad, Amr (Department: 2629)

Computer graphics processing and selective visual display system

Display driving control circuitry

Intensity or color driving control

C345S094000, C345S208000

Reexamination Certificate

active

07616221

ABSTRACT:
A driving circuit provided by the present invention is characterized in that the driving circuit selects a gray-scale voltage in accordance with high-order bits of display data from a group of gray-scale voltages with their voltage level varying step by step from fractional time period to fractional time period, which are set in advance, and outputs the selected gray-scale voltage during a time period between the start of a scanning period and a time at which a number assigned to a fractional time period matches quantitative information contained in low-order bits of the display data. In addition, the driving circuit provided by the present invention is also characterized in that the time ratio of the first fractional time period is set at a relatively high value while the time ratios of the second and subsequent fractional time periods are each set at a relatively low value.

REFERENCES:
patent: 6567062 (2003-05-01), Kudo et al.
patent: 7158108 (2007-01-01), Hagino
patent: 2002/0036610 (2002-03-01), Ito et al.
patent: 2003/0016189 (2003-01-01), Abe et al.
patent: 2007/0057884 (2007-03-01), Akai et al.
patent: 2000-66642 (2000-03-01), None

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