Black insertion controller and method capable of reducing liquid crystal display panel image persistence

Abstract

The invention relates to a black insertion controller and method capable of reducing liquid crystal display panel image persistence. The black insertion controller comprises a brightness difference function generating unit, an edge detecting function generating unit, a fuzzy control unit and a time sequence control unit, wherein the brightness difference function generating unit outputs a first membership function according to the gray-scale difference of a plurality of blocks of a liquid crystal display panel between two continuous pictures; the edge detecting function generating unit outputs at least one second membership function according to the movement vector of at least one object between the two continuous pictures; the fuzzy control unit decides at least one third membership function according to the first membership function and the at least one second membership function and defuzzifies the at least one third membership function so as to select and output a third membershipfunction from the at least one third membership function; and the time sequence control unit outputs a corresponding inserted picture according to the third membership function.

Description

technical field [0001] The present invention relates to a black insertion controller capable of reducing afterimages on a liquid crystal panel and a method thereof, in particular to a method for blurring control of the inserted screen of a liquid crystal panel by using a brightness difference function generating unit and an edge detection function generating unit to reduce Black-inserting controller and method for afterimage on panel. Background technique [0002] Please refer to Figure 1A , Figure 1B and Figure 1C , Figure 1A , Figure 1B and Figure 1C It is a schematic diagram illustrating the prior art that a liquid crystal panel displays a color picture by using a color sequence method. Such as Figure 1A As shown, when the LCD panel displays a red picture, a green picture, and a blue picture in sequence, a black picture is inserted between every two consecutive pictures to eliminate residual images on the liquid crystal panel, and the backlight remains turned o...

AI Technical Summary

Problems solved by technology

[0003] However, in Figure 1A , Figure 1B and Figure 1C In this case, the screen displayed on the LCD panel may have uneven brightness, and the screen may flicker

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