LIQUID CRYSTAL DISPLAY DEVICE AND ELECTRONIC DEVICE
First Claim
1. A liquid crystal display device comprising:
- a display portion controlled by a driver circuit and including a normally white mode liquid crystal; and
a timing controller configured to control the driver circuit,wherein the timing controller is supplied with an image signal for displaying a moving image and an image signal for displaying a still image, andwherein an absolute value of a voltage applied to the normally white mode liquid crystal in order to express black in an image corresponding to the image signal for displaying the still image is larger than an absolute value of a voltage applied to the normally white mode liquid crystal in order to express black in an image corresponding to the image signal for displaying the moving image.
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Accused Products
Abstract
To suppress deterioration of quality of a still image displayed with a reduced refresh rate. A liquid crystal display device includes a display portion that is controlled by a driver circuit and includes normally white mode (or normally black mode) liquid crystals, and a timing controller for controlling the driver circuit. The timing controller is supplied with an image signal for displaying a moving image and an image signal for displaying a still image. The absolute value of a voltage applied to the liquid crystals in order to express black (or white) in an image corresponding to the image signal for displaying the still image is larger than that of a voltage applied to the liquid crystals in order to express black (or white) in an image corresponding to the image signal for displaying the moving image.
137 Citations
22 Claims
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1. A liquid crystal display device comprising:
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a display portion controlled by a driver circuit and including a normally white mode liquid crystal; and a timing controller configured to control the driver circuit, wherein the timing controller is supplied with an image signal for displaying a moving image and an image signal for displaying a still image, and wherein an absolute value of a voltage applied to the normally white mode liquid crystal in order to express black in an image corresponding to the image signal for displaying the still image is larger than an absolute value of a voltage applied to the normally white mode liquid crystal in order to express black in an image corresponding to the image signal for displaying the moving image. - View Dependent Claims (2, 3, 4)
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5. A liquid crystal display device comprising:
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a display portion controlled by a driver circuit and including a normally black mode liquid crystal; and a timing controller configured to control the driver circuit, wherein the timing controller is supplied with an image signal for displaying a moving image and an image signal for displaying a still image, and wherein an absolute value of a voltage applied to the normally black mode liquid crystal in order to express white in an image corresponding to the image signal for displaying the still image is larger than an absolute value of a voltage applied to the normally black mode liquid crystal in order to express white in an image corresponding to the image signal for displaying the moving image. - View Dependent Claims (6, 7, 8)
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9. A liquid crystal display device comprising:
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a display portion controlled by a driver circuit and including a normally white mode liquid crystal; and a timing controller configured to control the driver circuit, wherein the timing controller is supplied with an image signal for displaying a moving image and an image signal for displaying a still image, and wherein an absolute value of a voltage applied to the normally white mode liquid crystal in order to express black in an image corresponding to the image signal on the display portion is increased as a gray level number of the image signal is smaller. - View Dependent Claims (10, 11, 12)
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13. A liquid crystal display device comprising:
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a display portion controlled by a driver circuit and including a normally black mode liquid crystal; and a timing controller configured to control the driver circuit, wherein the timing controller is supplied with an image signal for displaying a moving image and an image signal for displaying a still image, and wherein an absolute value of a voltage applied to the normally black mode liquid crystal in order to express white in an image corresponding to the image signal on the display portion is increased as a gray level number of the image signal is smaller. - View Dependent Claims (14, 15, 16)
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17. A liquid crystal display device comprising:
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a display portion controlled by a driver circuit and including a normally white mode liquid crystal; and a timing controller configured to control the driver circuit, wherein the timing controller is supplied with a first image signal with a first gray level number for displaying a still image and a second image signal with a second gray level number for displaying a still image, and wherein by the timing controller, an absolute value of a voltage applied to the normally white mode liquid crystal in order to express black in an image corresponding to the first image signal on the display portion is made smaller than an absolute value of a voltage applied to the normally white mode liquid crystal in order to express black in an image corresponding to the second image signal with the second gray level number smaller than the first gray level number. - View Dependent Claims (18, 19)
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20. A liquid crystal display device comprising:
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a display portion controlled by a driver circuit and including a normally black mode liquid crystal; and a timing controller configured to control the driver circuit, wherein the timing controller is supplied with a first image signal with a first gray level number for displaying a still image and a second image signal with a second gray level number for displaying a still image, and wherein by the timing controller, an absolute value of a voltage applied to the normally black mode liquid crystal in order to express white in an image corresponding to the first image signal on the display portion is made smaller than an absolute value of a voltage applied to the normally black mode liquid crystal in order to express white in an image corresponding to the second image signal with the second gray level number smaller than the first gray level number. - View Dependent Claims (21, 22)
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Specification