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LCD (Liquid Crystal Display)-overdriving method and device thereof

An overdrive, grayscale value technology, used in cathode ray tube indicators, instruments, static indicators, etc., can solve problems such as cost increase and PCB circuit board area increase, to save costs, save storage space, and avoid storage. Insufficient space effect

Active Publication Date: 2013-01-23
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the image pixel data is large, it is necessary to add an additional frame buffer to the timing controller and zoom controller to store the entire frame image, which will greatly increase the area of ​​the PCB circuit board
In addition, when the image pixels increase, the required storage space also increases, and the capacity requirements for the frame buffer are also higher, and the cost will also increase

Method used

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  • LCD (Liquid Crystal Display)-overdriving method and device thereof
  • LCD (Liquid Crystal Display)-overdriving method and device thereof
  • LCD (Liquid Crystal Display)-overdriving method and device thereof

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Embodiment Construction

[0039] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0040] refer to figure 1 , figure 1 It is a flow chart of the LCD over-excited driving method of the present invention. The LCD overdrive method is used to improve the LCD display quality and increase the response speed, including:

[0041] Step S10, the scaling controller receives the gray scale value of the previous frame image, and stores the gray scale value of the previous frame image in the frame buffer of the scaling controller;

[0042] In this embodiment, each pixel data of the previous frame image is stored in the frame buffer of the zoom controller instead of being stored in the timing controller, which avoids adding a frame buffer in the timing controller, and can effectively save the timing controller. storage.

[0043] Step S20, the scaling controller receives the gray scale value of the next frame o...

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Abstract

An LCD overdrive method and device, and a liquid crystal display. The LCD overdrive method includes steps of: a scaling controller (10) receiving a previous frame image grayscale value and storing same into a frame buffer (11) of the scaling controller (10) (S10); the scaling controller (10) receiving a next frame image grayscale value and sending the previous frame image grayscale value and the next frame image grayscale value to a time sequence controller (20) for same to query a correspondence table and output an overdrive grayscale value (S20). Storing the previous frame image grayscale value of the previous frame image into the frame buffer (11) instead of the time sequence controller (20) avoids adding the frame buffer (11) into the time sequence controller (20), which can save costs and save the storage space of the time sequence controller (20).

Description

technical field [0001] The invention relates to the technical field of liquid crystal driving, in particular to an LCD over-excited driving method and a device thereof. Background technique [0002] In the LCD (Liquid Crystal Display, Liquid Crystal Display) driver, the response time of liquid crystal has always been a challenge for the LCD industry, especially in the process of realizing dynamic images, the phenomenon of dynamic image smear will have a great impact on the texture of the display screen. influences. For example, when the image is converted from the previous frame to the next frame, the grayscale value of the image increases, but due to the slow reaction speed of the liquid crystal, a longer response time is required, and the grayscale value of the image cannot quickly reach the next frame. The expected brightness of the frame image. In order to speed up the response speed of liquid crystal, the most commonly used improvement method at present is to use over...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G5/36G09G3/36
CPCG09G3/36G09G3/3688G09G2320/0252G09G2340/16G09G2360/18
Inventor 廖良展林柏伸谭小平
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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