Column region correction scanning drive method for smectic liquid crystal display screen

Abstract

The invention discloses a column region correction scanning drive method for a smectic liquid crystal display. The method comprises the following steps of: carrying out initialization; dividing each line of a display screen into a plurality of regions in the horizontal direction; generating a region gray scale modulometer according to the divided regions; selecting a scanning mode and determining a scanning sequence series corresponding to the scanning mode; sequentially reading each line number from the scanning sequence series; in the process of reading the line number, determining a region of each pixel point corresponding to a line electrode represented by the line number, and a gray scale correction value through the region gray scale modulometer so that the line electrode outputs a line pulse voltage, modulating the corresponding gray scale correction value according to the pixel point corresponding to each column electrode through the column electrode to obtain a gray scale value, and outputting a corresponding column pulse voltage; after reading the scanning sequence series, stopping outputting voltage, and finishing displaying of an image. According to the method disclosed by the invention, the region inconsistency of the display screen in the horizontal direction is improved by modifying the gray scale values of the pixel points, and the display effect of the display screen is promoted.

Description

technical field [0001] The invention relates to a scan driving method, in particular to a column area correction scan driving method applied to a smectic liquid crystal display. Background technique [0002] Liquid crystal display is one of the most promising flat panel display devices at present. Traditional liquid crystal displays are passive displays, that is, transmissive displays, which can only be displayed under the condition of an external backlight, but the power consumption of the backlight is the liquid crystal itself. More than hundreds of times the power consumption, very energy-consuming. With the development of liquid crystal technology, various liquid crystal materials emerge in an endless stream, among which the reflective liquid crystal that does not require a backlight has an absolute advantage due to its low power consumption characteristics. The smectic liquid crystal display in the Chinese utility model patent "a display control circuit" (patent number...

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Problems solved by technology

[0004] It can be seen that the existing scan driving method is difficult to overcome the inconsistency of the full screen area caused by the row electrode resistance and the cumulative effect of row signals, and it is urgent to find a solution.

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