Liquid crystal display device and method of driving liquid crystal display device
AssigneeSharp Kabushiki Kaisha
InventorMASAHIRO IMAI
Life of this patent
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Abstract
In a liquid crystal display device, an auxiliary capacitance wiring driver changes a potential of an auxiliary capacitance wiring so that a dielectric torque of liquid crystal molecules of a pixel (PXj) to which a minimum voltage corresponding to a backlight is written becomes larger while the backlight is turned off, and a scanning signal line driver drives a scanning signal line so that image data is written to the pixel in a state in which the potential of the auxiliary capacitance wiring is changed so that the dielectric torque of the liquid crystal molecules of the pixel becomes larger.
Claims9
A liquid crystal display device comprising:
- a data driver writing image data to a plurality of pixels;
- a scanning signal line driver driving a plurality of scanning signal lines;
- a plurality of auxiliary capacitance wirings forming an auxiliary capacitance between the plurality of auxiliary capacitance wirings and the plurality of pixels;
- an auxiliary capacitance wiring driver driving the plurality of auxiliary capacitance wirings;
- and
- a first backlight,
- wherein the auxiliary capacitance wiring driver changes a potential of a first auxiliary capacitance wiring so that dielectric torque of liquid crystal molecules of a first pixel, to which a minimum voltage is written, corresponding to the first backlight becomes larger while the first backlight is turned off, and
- the scanning signal line driver drives the scanning signal line so that the image data is written to the first pixel in a state in which the potential of the first auxiliary capacitance wiring is changed so that the dielectric torque of the liquid crystal molecules of the first pixel becomes larger.
A method of driving a liquid crystal display device including a plurality of auxiliary capacitance wirings forming an auxiliary capacitance between the plurality of auxiliary capacitance wirings and a plurality of pixels, and a first backlight, the method comprising:
- changing a potential of a first auxiliary capacitance wiring so that a dielectric torque of liquid crystal molecules of a first pixel, to which a minimum voltage is written, corresponding to the first backlight becomes larger while the first backlight is turned off, and
- writing image data to the first pixel in a state in which the potential of the first auxiliary capacitance wiring is changed so that the dielectric torque of the liquid crystal molecules of the first pixel becomes larger.
Dependencies are inferred from the claim text.