Liquid crystal display and driving method thereof
First Claim
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1. A liquid crystal display, comprising:
- a liquid crystal display panel having liquid crystal cells defined between intersecting gate lines and data lines;
thin film transistors connected in a zigzag pattern to the gate lines; and
a liquid crystal display panel driver applying pixel voltage signals to the data lines, wherein the pixel voltage signals on each data line have the same polarity in a horizontal period, wherein the liquid crystal display panel driver includes;
a data driver that converts input pixel data into the pixel voltage signals; and
a timing controller that controls the data driver and that combines pixel data in a current horizontal period with pixel data from a previous horizontal period to produce combined pixel data, wherein the input pixel data includes the combined pixel data.
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Abstract
A liquid crystal display and a dot inversion driving technique for that liquid crystal display. The liquid crystal display includes a liquid crystal display panel having liquid crystal cells defined by intersections of gate and data lines. Each liquid crystal cell includes a thin film transistor. Those thin film transistors are connected in a zigzag pattern to the gate lines. Pixel voltage signals are applied in a line inversion fashion to the liquid crystal cells such that the pixel voltage signal polarities (referenced to a common electrode) are inverted in every horizontal period. The common electrode can be an AC voltage that changes in each horizontal period.
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Citations
22 Claims
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1. A liquid crystal display, comprising:
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a liquid crystal display panel having liquid crystal cells defined between intersecting gate lines and data lines; thin film transistors connected in a zigzag pattern to the gate lines; and a liquid crystal display panel driver applying pixel voltage signals to the data lines, wherein the pixel voltage signals on each data line have the same polarity in a horizontal period, wherein the liquid crystal display panel driver includes; a data driver that converts input pixel data into the pixel voltage signals; and a timing controller that controls the data driver and that combines pixel data in a current horizontal period with pixel data from a previous horizontal period to produce combined pixel data, wherein the input pixel data includes the combined pixel data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A liquid crystal display, comprising:
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a liquid crystal display panel having liquid crystal cells defined between intersecting gate lines and data lines; thin film transistors connected in a zigzag pattern to the gate lines; and a liquid crystal display panel driver applying pixel voltage signals to the data lines, wherein the pixel voltage signals on each data line has the same polarity in a horizontal period, wherein the liquid crystal display panel driver includes; a data driver that combines pixel data in a current horizontal period with pixel data in a previous horizontal period to produce combined pixel data and that converts the combined pixel data into pixel voltage signals that are applied to the data lines; and a timing controller that controls the data driver and that supplies pixel data to the data driver. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of driving a liquid crystal display, comprising the steps of:
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combining pixel data in a current horizontal period with pixel data in a previous horizontal period to produce combined pixel data in every horizontal period; and applying the combined pixel data to liquid crystal cells that are connected together in a zigzag pattern. - View Dependent Claims (21, 22)
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Specification