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Method for driving liquid crystal display panel with triple gate arrangement

A liquid crystal display panel, liquid crystal display technology, applied in the direction of static indicators, instruments, etc., can solve the problem of uneven color stripes and other problems

Inactive Publication Date: 2009-04-22
RENESAS ELECTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This causes the offset cancellation operation to have no effect on subpixels within the four gray pixels of interest, resulting in streaky color inhomogeneities

Method used

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  • Method for driving liquid crystal display panel with triple gate arrangement
  • Method for driving liquid crystal display panel with triple gate arrangement
  • Method for driving liquid crystal display panel with triple gate arrangement

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Embodiment Construction

[0065] Now, the present invention will be described with reference to exemplary embodiments. Those skilled in the art will recognize that many alternative embodiments can be accomplished using the teachings of the present invention and that the invention is not limited to the embodiments illustrated for explanatory purposed.

[0066] In the following, as in the case of the most popular liquid crystal display devices, an implementation will be described in which each pixel comprises three sub-pixels respectively associated with red (R), green (G) and blue (B). However, it should be noted that the present invention is also applicable to liquid crystal display devices in which each pixel comprises a different number of sub-pixels, as understood from the principles of the present invention. Although the embodiments given hereinafter are directed to a liquid crystal display device having a tri-gate type in which three sub-pixels in each pixel are arranged in the signal line directi...

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Abstract

A method is provided for driving a liquid crystal display panel in which each pixel includes a plurality of sub-pixels arranged in a specific direction, the method including feeding drive voltages to sub-pixels within the liquid crystal display panel by using operational amplifiers. The polarities of the drive voltages fed to each of the sub-pixels are inverted between two adjacent frame periods. The offset polarities of the operational amplifiers are inverted for every a predetermined number of successive sub-pixels. The number of the sub-pixels within each pixel is coprime to the predetermined number of successive sub-pixels.

Description

technical field [0001] The present invention relates to a method of driving an LCD (Liquid Crystal Display) panel, and more particularly, to a technique for driving an LCD panel in which each pixel includes a plurality of sub-pixels. Background technique [0002] A typical color liquid crystal display device includes a plurality of pixels regularly arranged in rows and columns. A color liquid crystal display device displays desired images of various colors with desired hue, brightness, and chroma by controlling the transmittance and / or reflectance of sub-pixels within each pixel. In a typical LCD panel, each pixel includes three sub-pixels associated with each of the three primary colors of light. Hereinafter, a color liquid crystal display device in which each pixel includes R, G, and B sub-pixels associated with red, green, and blue, respectively, is described. [0003] In a typical liquid crystal display device, light emitted from a backlight passes through liquid cryst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36G02F1/133
CPCG09G3/3688G09G2320/0209G09G3/3614
Inventor 泉川真规久米田诚之
Owner RENESAS ELECTRONICS CORP
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