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Charging compensation circuit, charging compensation method, and display device

A compensation circuit and display device technology, applied to static indicators, instruments, etc., can solve the problems of horizontal and vertical textures on pure color screens, and achieve the effect of solving the finepitch problem

Active Publication Date: 2021-01-08
BOE TECH GRP CO LTD +1
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a charging compensation circuit, a charging compensation method, and a display device, which can solve the problem of horizontal and vertical textures when a solid-color picture is displayed on the screen

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  • Charging compensation circuit, charging compensation method, and display device
  • Charging compensation circuit, charging compensation method, and display device
  • Charging compensation circuit, charging compensation method, and display device

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Embodiment Construction

[0070] In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0071] In order to solve the fine pitch problem, a row-level charging compensation module is proposed in the prior art to solve such problems. The row-level charging compensation module adopts the Line OD technology, that is, a row-level overcharge drive. figure 1 It is a 1G1D Z-inv (Z inversion) pixel structure. When a yellow screen with a grayscale value of 128 is displayed, the source line (data line) S1 is always charged with the voltage of grayscale 128, and the source line S2 and S3 are always charged with the voltage of grayscale 128. One row is charged with the voltage of grayscale 0, and the next row is charged with the voltage of grayscale 128, which will generate figure 2 phenomenon in. If the given data voltage is the vol...

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Abstract

The invention provides a charge compensation circuit, a charge compensation method and a display device, which belong to the field of display technology. The charging compensation circuit includes: a sorting module, which sorts the input initial data voltages according to the pixel structure type of the display device, and obtains multiple paths of data, each path of data includes initial data voltages corresponding to all data lines when the gate lines of the corresponding row are opened; the storage ratio The pair module is used to output multiple sets of comparison data according to the stored data; the search module is used to search for the actual compensation data corresponding to the set of comparison data according to each set of comparison data; the compensation module is used to open the current line according to the actual compensation data. The initial data voltage on the corresponding data line is compensated to obtain the actual data voltage on the corresponding data line when the gate line of the current row is turned on; the storage comparison module is also used to store the actual data voltages on all data lines when the gate line of the current row is turned on. The invention can solve the problem of horizontal and vertical textures when a solid-color picture is displayed on a screen.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a charging compensation circuit, a charging compensation method, and a display device. Background technique [0002] In large-size LCD panels over 65 inches and some other large-size panels with poor driving capabilities, because the signal lines of the drive circuit are too long and the trace impedance of the signal lines is difficult to be uniform on the entire panel, these two problems, There will be a situation where the panel is partially insufficiently charged. The most intuitive response to this situation is the fine pitch phenomenon, that is, when the screen displays a solid-color image, there will be horizontal and vertical textures, and the shape of the texture is related to the pixel structure. [0003] In order to solve the fine pitch problem, the prior art proposes a row-level charging compensation module to solve such problems, but the existing charging compensatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
CPCG09G3/3607G09G3/2092G09G2320/0285G09G2320/0223G09G3/3696G09G3/3685G09G2340/06
Inventor 吕文旭王新秋董学陈明孙伟罗信忠
Owner BOE TECH GRP CO LTD
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