LIQUID CRYSTAL DISPLAY APPARATUS AND PROGRAM USED FOR THE SAME
First Claim
1. A liquid crystal display apparatus configured to display an input image signal using a liquid crystal display element, the liquid crystal display apparatus comprising:
- a feature amount generator configured to generate a feature amount based on the number of pixel pairs that satisfy a correspondence relationship between a gradation value of a target pixel and a gradation value of a surrounding pixel around the target pixel for an image represented by the input image signal;
a processor configured to provide processing so as to set a correction value that reduces a dynamic range of a gradation value of the input image signal when the feature amount is larger than a first threshold, and so as not to set the correction value when the feature amount is equal to or smaller than the first threshold; and
a liquid crystal driver configured to drive the liquid crystal display element based on the input image signal that has been corrected by the correction value.
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Abstract
A liquid crystal display apparatus includes a feature amount generator configured to generate a feature amount based on the number of pixel pairs that satisfy a correspondence relationship between a gradation value of a target pixel and a gradation value of a surrounding pixel around the target pixel for a image represented by an input image signal, a processor configured to provide processing so as to set a correction value that reduces a dynamic range of a gradation value of the input image signal when the feature amount is larger than a first threshold, and so as not to set the correction value when the feature amount is equal to or smaller than the first threshold, and a liquid crystal driver configured to drive a liquid crystal display element based on the input image signal that has been corrected by the correction value.
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Citations
7 Claims
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1. A liquid crystal display apparatus configured to display an input image signal using a liquid crystal display element, the liquid crystal display apparatus comprising:
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a feature amount generator configured to generate a feature amount based on the number of pixel pairs that satisfy a correspondence relationship between a gradation value of a target pixel and a gradation value of a surrounding pixel around the target pixel for an image represented by the input image signal; a processor configured to provide processing so as to set a correction value that reduces a dynamic range of a gradation value of the input image signal when the feature amount is larger than a first threshold, and so as not to set the correction value when the feature amount is equal to or smaller than the first threshold; and a liquid crystal driver configured to drive the liquid crystal display element based on the input image signal that has been corrected by the correction value. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A program that enables a computer to execute a method for displaying an input image signal on a display apparatus using a liquid crystal display element, the method comprising:
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a feature amount generating step of generating a feature amount based on the number of pixel pairs that satisfy a correspondence relationship between a gradation value of a target pixel and a gradation value of a surrounding pixel around the target pixel for an image represented by the input image signal; a processing step of providing processing so as to set a correction value that reduces a dynamic range of a gradation value of the input image signal when the feature amount is larger than a first threshold, and so as not to set the correction value when the feature amount is equal to or smaller than the first threshold; and a liquid crystal driving step of driving the liquid crystal display element based on the input image signal that has been corrected by the correction value.
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Specification