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Timing controller and its operation method

A technology of timing controller and operation method, which is applied in the direction of instruments, static indicators, etc., and can solve problems such as insufficient sub-pixel charging, sub-pixel abnormality, RC delay, etc.

Active Publication Date: 2021-09-21
HIMAX TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the size of LCDs increases and the number of source driver chips decreases, the traces in the display panel will become more, longer and thinner
In contrast, the RC delay caused by the parasitic capacitance and parasitic resistance of the wiring will become more and more serious, which will lead to the problem of insufficient charging of the sub-pixels in the display panel, and the image of the display panel will often be due to insufficient charging of the pixels. and an exception occurs

Method used

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  • Timing controller and its operation method
  • Timing controller and its operation method
  • Timing controller and its operation method

Examples

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Embodiment Construction

[0040] figure 1 is a schematic diagram of a display device according to an embodiment of the present invention. Such as figure 1 As shown, the display device 100 includes a display panel 110 , a timing controller 120 , a gate driver 130 and a source driver 140 . Wherein, the display device 100 may be, for example, a liquid crystal display (LCD). The gate driver 130 is electrically connected to the display panel 110 and the timing controller 120 , and the source driver 140 is electrically connected to the display panel 110 and the timing controller 120 .

[0041] The timing controller 120 can receive frame data corresponding to the display panel 110 . For example, the display panel 110 includes a plurality of sub-pixels, and each sub-pixel corresponds to a pixel data in the frame data. For example, the first row of pixels 111 in the display panel 110 corresponds to the first row of data RD1 in the frame data. Wherein, the sub-pixel P0 in the first row of pixels 111 corresp...

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Abstract

An operation method of a timing controller includes the following steps. The first line of data is temporarily stored through the line buffer in the timing controller, and the second line of data includes current pixel data. The reference information is obtained from the first data matrix according to the position information, and the previous pixel data is selected from the first row of data and the second row of data according to the reference information. The polarity information is obtained from the second data matrix according to the position information. Compensation values ​​are obtained from a plurality of compensation comparison tables according to the polarity information, previous pixel data and current pixel data. The gain comparison table is queried according to the location information to obtain the gain value. The current pixel data is adjusted according to the compensation value and the gain value to generate compensated pixel data.

Description

technical field [0001] The present invention relates to a timing controller and its operating method, and in particular to a timing controller of a display device and its operating method. Background technique [0002] In recent years, liquid crystal displays (LCDs) are developing in the direction of low cost, large size and high resolution. In addition, due to the consideration of low cost, most of the display panels in LCDs are developed towards the direction of dual-gate or triple-gate architectures, so as to reduce the source voltage of LCDs. The number of driver chips. However, as the size of the liquid crystal display increases and the number of source driver chips decreases, the traces in the display panel will become more, longer and thinner. In contrast, the RC delay caused by the parasitic capacitance and parasitic resistance of the wiring will become more and more serious, which will lead to the problem of insufficient charging of the sub-pixels in the display p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
CPCG09G3/3696
Inventor 翁铭鸿蔡政哲王清稳吴东颖黎耀杰郑卜仁
Owner HIMAX TECH LTD