Multi-area scanning drive method for smectic state liquid crystal display (LED)

A liquid crystal display and scanning drive technology, which is applied in the field of scanning drive, can solve problems such as regional unevenness, and achieve the effects of avoiding image distortion, improving display quality, and enhancing image display effect
CN101866633AInactive Publication Date: 2010-10-20HALATION PHOTONICS CORP
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HALATION PHOTONICS CORP
Publication Date
2010-10-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a multi-area scanning drive method for a smectic state liquid crystal display (LED), comprising the steps as follows: initiation: taking a line as a unit, dividing a display into W numbered areas along a vertical direction and generating an area lookup table correspondingly, an area subfield pulse pair number table and an area subfield frequency table; selecting a scanning mode, and determining a scanning sequence series corresponding to the scanning mode; successively reading each line number in the scanning sequence series; judging the line subsidiary area corresponding to the line number through the area lookup table while reading one line number, and determining the line pulse waveform corresponding to the line through the area subfield pulse pair number table and / or area subfield frequency table based on the subsidiary area of the line so as to output the line pulse, and outputting corresponding row pulse on each row of electrodes according to the image to be displayed on the line; and stopping outputting the pulses after the scanning sequence series is read out, and displaying the image. By using the invention, area unevenness of the smectic state liquid crystal display along the vertical direction is overcome and the image display quality is improved.
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Description

technical field

[0001] The invention relates to a scanning driving method, in particular to a multi-region scanning 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 Z...

Claims

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