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Grid electrode driver and display driver using the same

A technology of gate driver and display panel, applied in instruments, static indicators, etc., can solve the problem of high cost of liquid crystal display

Inactive Publication Date: 2010-07-21
NOVATEK MICROELECTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing overdrive technology needs to set up a large-capacity frame buffer (Frame Buffer) to calculate the information of the previous and subsequent frames
In this way, the cost of the liquid crystal display will be higher

Method used

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  • Grid electrode driver and display driver using the same
  • Grid electrode driver and display driver using the same
  • Grid electrode driver and display driver using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The gate driver of this embodiment provides the first set of scanning signals for controlling the writing of normal image data and the insertion of black image data in response to the multi-level start signal and the multi-level output enabling signal. The second set of scan signals for control.

[0027] The gate driver of this embodiment is used in a display panel to drive k pixel columns in the display panel, where k is a natural number greater than 1. The gate driver includes a shift register circuit and an output logic circuit. The shift register circuit is enabled in response to the multi-level start signal, so as to generate an i-th first shift signal and a j-th second shift signal in a scanning period. The i-th first shift signal and the j-th second shift signal respectively correspond to the first pixel row and the second pixel row in the k pixel rows, and i and j are natural numbers less than or equal to k.

[0028] The output logic circuit is controlled by t...

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PUM

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Abstract

The invention relates to a grid electrode driver and a display driver using the same. The grid electrode driver is used for driving k pixel arrays of a liquid crystal display panel, wherein k is a natural number greater than 1. The grid electrode driver comprises a shift register circuit and an output logic circuit, wherein the shift register circuit is used for outputting an ith first shift signal and a jth second shift signal in the scanning period according to a multilevel initial signal, the ith first shift signal and the jth second shift signal respectively correspond to the first pixel array and the second pixel array, and i and j are natural numbers smaller than or equal to k. The output logic circuit is controlled by a multilevel output enable signal for respectively providing the ith first shift signal and the jth second shift signal in the data writing sub period of the scanning period and the black frame insertion period to drive the first pixel array and the second pixel array, wherein the data writing sub period and the black frame insertion period are mutually staggered.

Description

technical field [0001] The present invention relates to a gate driver, and in particular to a gate driver using a multi-level start signal and a multi-level output enable signal. Background technique [0002] As is well known in the industry, in order to avoid the dynamic image sticking phenomenon of the liquid crystal display, the overdriving (overdriving) technology is widely used to reduce the dynamic image sticking phenomenon of the liquid crystal display. However, the existing overdrive technology requires a large-capacity frame buffer (Frame Buffer) to perform calculations on the information of previous and subsequent frames. In this way, the cost of the liquid crystal display will be higher. Therefore, how to design a liquid crystal display driving method that can effectively solve the dynamic afterimage phenomenon of the liquid crystal display is one of the directions that the industry is constantly working on. Contents of the invention [0003] The object of the...

Claims

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Application Information

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IPC IPC(8): G09G3/36G09G3/20G02F1/133
Inventor 黄俊乂
Owner NOVATEK MICROELECTRONICS CORP