Apparatus for driving a display panel with compensation for heat caused by proximity to light source, and method thereof
First Claim
1. A method of driving a display panel, comprising:
- providing grayscale signals to a display panel, the display panel being divided into blocks according to a distance from a light source to each of the blocks;
calibrating the grayscale signals to form compensating signals, the compensating signals respectively corresponding to the blocks; and
driving each block of the display panel using each corresponding compensating signal, to compensate for temperature differences in the blocks caused by heat from the light source.
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Abstract
A driving unit of a display panel includes a control part, a gate driving part, a grayscale compensating part, and a data driving part. The control part provides a control signal and a grayscale signal. The gate driving part provides a gate signal to the display panel. The display panel is divided into a plurality of blocks according to a distance from a light source to each of the blocks. The grayscale compensating part outputs a compensating signal of an n-th frame using look-up tables, and the look-up tables respectively correspond to the blocks of the display panel. The data driving part converts the compensating signal of the n-th frame into a grayscale voltage and provides the grayscale voltage to the display panel. Accordingly, the driving unit of the display panel may improve a response speed of liquid crystals and display quality.
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Citations
23 Claims
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1. A method of driving a display panel, comprising:
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providing grayscale signals to a display panel, the display panel being divided into blocks according to a distance from a light source to each of the blocks; calibrating the grayscale signals to form compensating signals, the compensating signals respectively corresponding to the blocks; and driving each block of the display panel using each corresponding compensating signal, to compensate for temperature differences in the blocks caused by heat from the light source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A driving unit of a display panel, the panel being divided into blocks according to distance from a light source to each of the blocks, the driving unit comprising:
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a time controller configured to provide grayscale signals for the display panel and to calibrate the grayscale signals to form compensating signals, the compensating signals respectively corresponding to the blocks; and a driving part configured to drive each block of the display panel using each corresponding compensating signal, to compensate for temperature differences in the blocks caused by heat from the light source. - View Dependent Claims (11, 12, 13)
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14. A display apparatus, comprising:
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a light source configured to generate light; a display panel configured to receive the light and comprising gate lines and data lines crossing each other, the display panel being divided into blocks according to distance from the light source to each of the blocks; a time controller configured to provide grayscale signals for the display panel and to calibrate the grayscale signals to form compensating signals, the compensating signals respectively corresponding to the blocks; and a driving part configured to drive each block of the display panel using each corresponding compensating signal, to compensate for temperature differences in the blocks caused by heat from the light source. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification