Method and circuit for aberration compensation of LCD panel scanning signal

A liquid crystal display panel and scanning signal technology, applied in static indicators, cathode ray tube indicators, instruments, etc., can solve problems such as unrealizable, unable to meet market demand, and increase costs

Inactive Publication Date: 2008-10-29
INNOLUX CORP
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  • Application Information

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Problems solved by technology

If a 16-bit data driver integrated circuit (IC) is used to realize the uniformity of the horizontal brightness of the LCD panel, it will not only increase t

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  • Method and circuit for aberration compensation of LCD panel scanning signal
  • Method and circuit for aberration compensation of LCD panel scanning signal
  • Method and circuit for aberration compensation of LCD panel scanning signal

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Embodiment Construction

[0047] Please refer to FIG. 4 , which is a schematic diagram of a transmission line signal distortion compensation circuit of a liquid crystal display panel according to a preferred embodiment of the present application. The transmission line signal distortion compensation circuit of the liquid crystal display panel includes a timing controller 30 and a frame buffer 40 . According to the actual brightness change of a liquid crystal display panel 50, the brightness value to be compensated is determined, and a table corresponding to the scanning line position is established. The timing controller 30 includes: a data line counter 301 , a scan counter (not shown in the figure), a comparator 303 and a look-up table 305 . First, the pixel image data (PresentFrame) of the current frame is input to a timing controller 30; wherein the data line counter 301 is used to count and indicate the current data line position; and the comparator 303 is used to compare the pixel image of the curr...

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Abstract

The invention relates to an LCD panel scanning-signal distortion compensating method and circuit. The LCD panel scanning-signal distortion compensating circuit comprises a time-sequence controller used for compensating the scanning-signal distortion of one LCD panel. The LCD panel comprises a plurality of scanning lines and a plurality of data cables which are interlaced into an array; a plurality of display units which are respectively arranged beside interlaced points of a plurality of scanning lines and a plurality of data cables; a data drive which is coupled with a plurality of data cables; a scanning drive which is coupled with a plurality of scanning lines. The time-sequence controller comprises a comparator used for comparing the difference between a first frame pixel image data and a second frame pixel image data; a counter used for providing the position of the second frame pixel image data; an inquiry list used for compensating images according to the result of the comparator so as to lead the whole brightness of the LCD panel to be uniform.

Description

technical field [0001] The present invention provides a method and circuit for compensating the distortion of the scanning signal of a liquid crystal display panel, in particular to a method of making the overall brightness of the liquid crystal display panel uniform by using frame rate control (FRC) technology. Background technique [0002] With the advancement of technology, liquid crystal display panels require higher brightness contrast and larger viewing angles to replace traditional cathode ray tube display panels (CRT Display). However, the larger the size of the liquid crystal display panel, the more serious the uneven brightness problem of the picture of the liquid crystal display panel. Please refer to FIG. 1 , which is a schematic diagram of a conventional liquid crystal display panel. The liquid crystal display panel includes: a data driver 10 , a scan driver 20 , a plurality of display units, a plurality of scan lines and a plurality of data lines. Wherein, eac...

Claims

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Application Information

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IPC IPC(8): G09G5/10G09G3/36
Inventor 杨鹦文
Owner INNOLUX CORP
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