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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

Inactive Publication Date: 2010-10-20
HALATION PHOTONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

That is to say, if the row pulses of the same waveform are used to scan and drive all the rows of the display screen, the displayed image will have regional unevenness in the vertical direction.

Method used

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

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Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] The multi-area scanning driving method of the present invention is designed for the smectic liquid crystal display screen. Such as figure 1 and figure 2 As shown, the smectic liquid crystal display screen 10 includes a first base layer 11 and a second base layer 12, and the materials of the first base layer 11 and the second base layer 12 may be glass or plastic. Between the first base layer 11 and the second base layer 12, there is a mixed layer 13 formed by mixing smectic liquid crystals and additives. The smectic liquid crystal (shown as smectic liquid crystal molecules microscopically, see below) is a class A smectic liquid crystal (Smectic-A) organic compound, such as a compound with a silicon group, tetracyanotetraoctyl biphenyl , Decyl tetraacetate tetracyanobiphenyl, etc. The additives are compounds with conductive properties, such as hexadecyltri...

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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.

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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Application Information

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IPC IPC(8): G09G3/36
Inventor 孙刚夏兴隆刘利强任宇
Owner HALATION PHOTONICS CORP
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