Method and apparatus for driving liquid crystal display device
First Claim
1. A method of driving a liquid crystal display device, comprising steps of:
- retrieving brightness histograms for at least two frames prior to a current frame to generate an average histogram;
generating modulated brightness components based on the average histogram; and
modulating first data for the current frame based on the modulated brightness components to generate second data for the current frame.
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Accused Products
Abstract
A method of driving a liquid crystal display device includes extracting brightness components of a portion of the first data for a current frame, arranging the brightness components for the current frame into a brightness histogram, retrieving brightness histograms for at least two frames prior to the current frame to generate an average histogram, generating second data for the current frame based on the average histogram, comparing the histogram for the current frame with the average histogram to determine whether an image at the current frame is a moving image or a still image, and driving the liquid crystal display device in accordance with one of the first data and the second data based on the comparison result.
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Citations
49 Claims
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1. A method of driving a liquid crystal display device, comprising steps of:
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retrieving brightness histograms for at least two frames prior to a current frame to generate an average histogram;
generating modulated brightness components based on the average histogram; and
modulating first data for the current frame based on the modulated brightness components to generate second data for the current frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of driving a liquid crystal display device, comprising:
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extracting brightness components of a portion of the first data for a current frame;
arranging the brightness components for the current frame into a brightness histogram;
retrieving brightness histograms for at least two frames prior to the current frame to generate an average histogram;
generating second data for the current frame based on the average histogram;
comparing the histogram for the current frame with the average histogram to determine whether an image at the current frame is a moving image or a still image; and
driving the liquid crystal display device in accordance with one of the first data and the second data based on the comparison result. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A driving apparatus for a liquid crystal display device, comprising:
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an image signal modulator receiving first data for a current frame, retrieving brightness histograms for at least two frames prior to the current frame to generate an average histogram, and generating second data for the current frame based on the average histogram; and
a back light controller generating a brightness control signal based on the average histogram. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
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Specification