Method of driving liquid crystal display and liquid crystal display using the driving method
First Claim
1. A method of driving an active matrix liquid crystal display for driving a liquid crystal display panel provided with plural thin-film transistors for switching connected to plural pixel electrodes according to a pulse width modulation driving system, wherein:
- the positive gate-on voltage (VGONP) and the negative gate-on voltage (VGONN) of the thin-film transistor are set based upon the temperature of the liquid crystal display panel.
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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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Citations
18 Claims
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1. A method of driving an active matrix liquid crystal display for driving a liquid crystal display panel provided with plural thin-film transistors for switching connected to plural pixel electrodes according to a pulse width modulation driving system, wherein:
the positive gate-on voltage (VGONP) and the negative gate-on voltage (VGONN) of the thin-film transistor are set based upon the temperature of the liquid crystal display panel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
Specification