Method of driving liquid crystal display and liquid crystal...

Details Method of driving liquid crystal display and liquid crystal... Method of driving liquid crystal display and liquid crystal...

2006-07-04

2006-07-04

Osorio, Ricardo (Department: 2673)

Computer graphics processing and selective visual display system

Display driving control circuitry

C345S087000, C345S089000, C345S090000, C345S092000, C345S094000, C345S099000, C345S101000, C345S208000, C345S210000

Reexamination Certificate

active

07071929

ABSTRACT:
In a method of driving an active matrix liquid crystal display according to pulse width modulation driving system using a thin-film transistor for a switching device, the variation of the temperature of a liquid crystal display panel is monitored. Particularly, the panel temperature detecting means of the liquid crystal display panel is provided, and gate-on voltage or data signal pulse width and a frequency of a reference clock signal are corrected according to the temperature of the panel. The corrected quantity of gate-on voltage according to the polarity of write data or the corrected quantity of data signal pulse width is determined according to the temperature of the panel. The higher the temperature of the panel is, to the lower value the positive or negative gate-one voltage is set and the lower the temperature of the panel is, to the higher value the positive or negative gate-on voltage is set. Positive gate-on voltage is set so that it is always higher than negative gate-on voltage.

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