Over-drive unit and liquid crystal display system using the same

Abstract

The invention discloses an over-drive unit, which comprises a value storage table data processing unit for finding a corresponding target value according to a target coordinate value. The value storage table data processing unit comprises the first and second storage units and an arithmetic unit. The first and second storage units store the first and second value storage tables for mapping a plurality of first coordinate values and a plurality of second coordinate values in a plurality of coordinate values to a plurality of first and second corresponding numerical values. The first and secondcoordinate values correspond to each other, and each second coordinate value is smaller than the corresponding first coordinate value. The arithmetic unit is used for finding the first and second corresponding numerical values in the first and second value storage tables, and obtaining the target numerical values by performing interpolation operations on the first and second corresponding numerical values. The invention also discloses a liquid crystal display system using the over-drive unit.

Description

technical field [0001] The present invention relates to an overdrive unit, including a stored value table data processing unit, and in particular to a storage unit with two or more stored value stored in different table data, and the stored value in which can be read simultaneously A stored-value table data processing unit for performing interpolation operations on table data. Background technique [0002] Due to the advantages of thin volume, light weight and low electromagnetic radiation, Liquid Crystal Display (LCD) has been widely used in recent years. In the prior art, the overdrive method has been used to increase the gray level (Gray Level) change speed of liquid crystal molecules, so as to prevent the display screen of the liquid crystal display from being unable to keep up with the gray level change speed of liquid crystal molecules. The required grayscale change speed causes afterimages. [0003] The traditional overdrive method responds to the grayscale values ​...

AI Technical Summary

Problems solved by technology

[0004] The invention relates to a stored-value table data processing unit, an overdrive unit and a liquid crystal display system using the same, which can effectively improve the traditional overdrive method that requires a plurality of substantially equal stored-value tables to cause higher memory costs, The found overdrive gray scale value has the disadvantages of high error due to the interpolation method and the poor quality of the display screen of the liquid crystal display system, but in essence it has the advantages of reducing the amount of stored value table data, low memory cost, and finding The error of the overdrive gray scale value is small and the display picture quality of the liquid crystal display system is better

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