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Display panel driving method and device

A driving method and technology for display panels, applied in static indicators, instruments, etc., can solve problems such as unstable voltage of the common electrode of the display panel, and achieve the effects of avoiding lateral crosstalk, reducing voltage difference, and ensuring stability

Active Publication Date: 2020-10-27
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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Problems solved by technology

[0005] The present application provides a method and device for driving a display panel to solve the technical problem of unstable common electrode voltage of the existing display panel

Method used

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  • Display panel driving method and device

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Embodiment Construction

[0054] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments that the present application can be used to implement. The directional terms mentioned in this application, such as [top], [bottom], [front], [back], [left], [right], [inside], [outside], [side], etc., are for reference only The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the application, but not to limit the application. In the figures, structurally similar elements are denoted by the same reference numerals.

[0055] see figure 1 , figure 1 It is a circuit diagram of a 3T pixel structure of an existing display panel.

[0056] The liquid crystal display panel of this structure includes a plurality of sub-pixels arranged in an array, and each sub-pixel includes a main (main) area and a sub (sub) area.

[0057] The main area is provided with a main area thin film transistor TFT...

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Abstract

The present application proposes a method and device for driving a display panel. The method for driving a display panel includes: acquiring a first driving voltage in a first region of the target panel; detecting an abnormality of the target panel according to the first driving voltage; When the first driving voltage is less than the threshold, the first common voltage of the first region is reduced; when the first driving voltage is equal to the threshold, the first common voltage of the first region is recovered. The present application detects the first driving voltage of the display panel, which can be the output voltage of the common signal line or the input voltage of the data signal line. When the above two voltages are less than a predetermined threshold, it is determined that the display panel has Lateral crosstalk, reduce the input voltage of the common signal line corresponding to the first area through the predetermined device, reduce the voltage difference before and after the input and output of the common signal line, ensure the stability of the public voltage in the first area, and avoid the occurrence of horizontal crosstalk on the display panel screen .

Description

technical field [0001] The present application relates to the field of display, in particular to a method and device for driving a display panel. Background technique [0002] In the existing 3T pixel structure, the sub-region pixels are connected to the common voltage A_com by sharing the thin film transistor TFT_share to discharge the sub-region, and the main region and the sub-region form a potential difference to achieve the liquid crystal in the main region and the sub-region. Inconsistent direction, so as to achieve the effect of compensating the angle of view. However, because the voltage source of the common voltage A_com cannot stabilize the excessive current difference, the voltage of the common voltage A_com changes under different gray scales. [0003] When the voltage of the common voltage A_com changes too much, it cannot be restored to the value before the change in time, so that the common voltage A_com becomes unstable, resulting in lateral crosstalk on the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
CPCG09G3/36G09G3/3696G09G3/3648
Inventor 吕晓文
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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