Controller driver, liquid crystal display apparatus using the same, and liquid crystal driving method
First Claim
1. A controller driver comprising:
- a compressing unit compressing received image data to generate first compressed image data and second compressed image data;
an image memory capable of storing the second compressed image data of at least one frame; and
an overdrive processing unit receiving the first compressed image data or expanded data thereof and also receiving the second compressed image data of one frame previous to the first compressed image data or expanded data thereof, and generating corrected image data where a tone value of the received image data is corrected based on the data, wherein the compressing unit changes compression processing performed in generating the first compressed image data and the second compressed image data with time, and compression processing performed in generating the first compressed image data in the compressing unit is the same as compression processing performed in compressing image data of one frame previous to the received image data to generate the second compressed image data.
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Abstract
A controller driver includes a first compressor for compressing received image data to generate first compressed image data, a second compressor to generate second compressed image data, and an image memory capable of storing the second compressed image data of at least one frame. It also includes an overdrive processing unit for generating corrected image data where a tone value of the received image data is corrected from the first compressed image data or its expanded data and second compressed image data of one frame previous to the first compressed image data or its expanded data. The compression processing performed in the first compressor is the same as compression processing performed in the second compressor in compressing image data of one frame previous to the received image data.
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Citations
13 Claims
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1. A controller driver comprising:
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a compressing unit compressing received image data to generate first compressed image data and second compressed image data;
an image memory capable of storing the second compressed image data of at least one frame; and
an overdrive processing unit receiving the first compressed image data or expanded data thereof and also receiving the second compressed image data of one frame previous to the first compressed image data or expanded data thereof, and generating corrected image data where a tone value of the received image data is corrected based on the data, wherein the compressing unit changes compression processing performed in generating the first compressed image data and the second compressed image data with time, and compression processing performed in generating the first compressed image data in the compressing unit is the same as compression processing performed in compressing image data of one frame previous to the received image data to generate the second compressed image data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A liquid crystal display apparatus including a controller driver and a liquid crystal display section driven by the controller driver, wherein the controller driver comprises:
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a compressing unit compressing received image data to generate first compressed image data and second compressed image data;
an image memory capable of storing the second compressed image data of at least one frame; and
an overdrive processing unit receiving the first compressed image data or expanded data and also receiving second compressed image data of one frame previous to the first compressed image data or expanded data and generating corrected image data where a tone value of the received image data is corrected based on the data, wherein the compressing unit changes compression processes performed in generating the first compressed image data and the second compressed image data with time, and compression processing performed in generating the first compressed image data in the compressing unit is the same as compression processing performed in compressing image data of one frame previous to the received image data to generate the second compressed image data.
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10. A liquid crystal driving method comprising:
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receiving image data;
compressing the received image data to generate first compressed image data;
generating corrected image data where a tone value of the received image data is corrected based on the first compressed image data or expanded data thereof and second compressed image data of one frame previous to the first compressed image data or expanded data thereof, wherein compression processing performed in generating the first compressed image data and the second compressed image data is changed with time, and compression processing performed in generating the first compressed image data is the same as compression processing performed in compressing image data of one frame previous to the received image data to generate the second compressed image data. - View Dependent Claims (11, 12, 13)
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Specification