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 a control signal and a grayscale signal, the control signal comprising a gate clock signal and a data clock signal;
providing a gate signal to the display panel based on the gate clock signal;
dividing the display panel into blocks according to distance from a light source to each of the blocks;
outputting a compensating signal of an n-th frame using look-up tables, the look-up tables respectively corresponding to the blocks of the display panel, and “
n”
being a natural number; and
converting the compensating signal of the n-th frame into a grayscale voltage and providing the grayscale voltages to each corresponding block of the display panel.
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0 Petitions
Accused Products
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.
15 Citations
20 Claims
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1. A method of driving a display panel, comprising:
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providing a control signal and a grayscale signal, the control signal comprising a gate clock signal and a data clock signal; providing a gate signal to the display panel based on the gate clock signal; dividing the display panel into blocks according to distance from a light source to each of the blocks; outputting a compensating signal of an n-th frame using look-up tables, the look-up tables respectively corresponding to the blocks of the display panel, and “
n”
being a natural number; andconverting the compensating signal of the n-th frame into a grayscale voltage and providing the grayscale voltages to each corresponding block of the display panel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A driving unit of a display panel, the panel being divided into a plurality of blocks according to distance from a light source to each of the blocks, the driving unit comprising:
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a control part to provide a control signal and a grayscale signal, the control signal comprising a gate clock signal and a data clock signal; a gate driving part to provide a gate signal to the display panel based on the gate clock signal; a grayscale compensating part to output compensating signals of an n-th frame using look-up tables, the look-up tables respectively corresponding to the blocks of the display panel, and “
n”
being a natural number; anda data driving part to convert the compensating signal of the n-th frame into grayscale voltages and to provide the grayscale voltages to each corresponding block of the display panel. - View Dependent Claims (10, 11)
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12. A display apparatus, comprising:
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a light source to generate light; a display panel to receive the light and comprising gate lines and data lines crossing each other, the display panel being divided into a plurality of blocks according to distance from the light source to each of the blocks; a control part to provide a control signal and a grayscale signal, the control signal comprising a gate clock signal and a data clock signal; a gate driving part to provide a gate signal to the gate lines based on the gate clock signal; a grayscale compensating part to output a compensating signal of an n-th frame using look-up tables, the look-up tables respectively corresponding to the blocks of the display panel, and “
n”
being a natural number; anda data driving part to convert the compensating signal of the n-th frame into a grayscale voltages and to provide the grayscale voltages to the data lines corresponding to each block of the display panel. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification