Liquid crystal display device and driving method for liquid crystal panel
AssigneeNEC Display Solutions, Ltd.
InventorHiroaki Ikeda
Life of this patent
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Abstract
A liquid crystal display device having a liquid crystal panel includes a common voltage generating section (5) that supplies a common voltage to a common electrode connected in common to a plurality of liquid crystal cells that comprise said liquid crystal panel (13); a liquid crystal driving section (12) that supplies a voltage corresponding to an input image signal to said plurality of liquid crystal cells so as to display an image based on said input image signal on said liquid crystal panel (13); and a controlling section (10) that causes said common voltage generating section (15) to change a value of the common voltage generated thereby to correspond to a signal that represents an amount of light that enters said liquid crystal panel.
Claims10
A liquid crystal display device including a liquid crystal panel, comprising:
- a common voltage generating section that supplies a common voltage to a common electrode connected in common to a plurality of liquid crystal cells that compose said liquid crystal panel;
- a liquid crystal driving section that supplies a voltage corresponding to an input image signal to said plurality of liquid crystal cells so as to display an image based on said input image signal on said liquid crystal panel;
- and
- a controlling section that causes said common voltage generating section to change a value of the common voltage generated thereby to correspond to a signal that represents an amount of light that enters said liquid crystal panel.
A liquid crystal display device that has a liquid crystal panel, comprising:
- a common voltage generating section that supplies a common voltage to a common electrode connected in common to a plurality of liquid crystal cells that comprise said liquid crystal panel;
- a liquid crystal driving section that supplies a voltage corresponding to an input image signal whose polarity reverses every predetermined interval to said plurality of liquid crystal cells so as to display an image based on said input image signal on said liquid crystal panel;
- and
- a controlling section that changes a value of a center voltage supplied to said liquid crystal panel as an intermediate potential between a positive polarity signal and a negative polarity signal of said input image signal corresponding to a signal that represents an amount of light that enters said liquid crystal panel.
A driving method for a liquid crystal panel composed of a plurality of liquid crystal cells, comprising:
- supplying a voltage corresponding to an input image signal to said plurality of liquid crystal cells so as to display an image based on said input image signal on said liquid crystal panel and then supplying a common voltage to a common electrode connected in common to said plurality of liquid crystal cells;
- and
- changing a value of the common voltage supplied to said common electrode to correspond to a signal that represents an amount of light that enters said liquid crystal panel.
A driving method for a liquid crystal panel composed of a plurality of liquid crystal cells, comprising:
- supplying a voltage corresponding to an input image signal whose polarity reverses every predetermined interval to said plurality of liquid crystal cells so as to display an image based on said input image signal on said liquid crystal panel and then supplying a common voltage to a common electrode connected in common to said plurality of liquid crystal cells;
- and
- changing a value of a center voltage supplied to said liquid crystal panel as an intermediate potential between a positive polarity signal and a negative polarity signal of said input image signal corresponding to a signal that represents an amount of light that enters said liquid crystal panel.
Dependencies are inferred from the claim text.