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Method and device for eliminating shutdown afterimage on panel

A shut-off afterimage and panel technology, applied in the direction of instruments, static indicators, etc., can solve the problems of data level rise or fall, shutdown afterimage cannot be eliminated, and charge cannot be completely released, etc., to achieve the goal of solving afterimage Effect

Active Publication Date: 2019-03-22
HKC CORP LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0003] For the above-mentioned liquid crystal display with low color shift design, the level control signal (XON) function on the driving integrated circuit is used to turn on the thin film transistors of all pixel electrodes, so that the pixel area can be quickly discharged to solve the afterimage after shutdown When there is a problem, the gate is fully open and the charge sharing TFT is always on, the storage electrode (Array Com, ACom for sho

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  • Method and device for eliminating shutdown afterimage on panel
  • Method and device for eliminating shutdown afterimage on panel
  • Method and device for eliminating shutdown afterimage on panel

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[0048] It should be understood that the specific embodiments described here are only used to explain the application, but not to limit the application.

[0049] The main solution of the embodiment of this application is:

[0050] Acquiring the initial voltage of the data line and the set voltage of the reference electrode;

[0051] Acquiring the current voltage of the data line when the display panel is turned off;

[0052] And, updating the set voltage of the reference electrode according to the initial voltage of the data line and the current voltage of the data line.

[0053] Due to the existing liquid crystal panel with 3T pixel design, when shutting down, the gate is fully open and the charge-sharing TFT is always on, the storage electrode (Array Com, ACom) is connected to the data line, and the energy stored in the array flows to the data line. As a result, the charge in the pixel area cannot be completely released, and the shutdown image cannot be eliminated.

[0054] The present...

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Abstract

The invention discloses a method for eliminating a shutdown afterimage on a panel. The method for eliminating the shutdown afterimage on the panel includes the steps of acquiring an initial voltage ofa data line and a set voltage of a reference electrode; before the display panel is shut down, acquiring a current voltage of the data line; and updating the set voltage of the reference electrode according to the initial voltage of the data line and the current voltage of the data line. The invention further discloses a device for eliminating the shutdown afterimage on the panel. The reference electrode in a control system is set to a set voltage adjustable, and when the display panel is shut down, the set voltage of the reference electrode is updated, a sandwich voltage between a voltage standard line of the data line and the set voltage of the reference electrode is reduced, charge in the pixel structure is effectively released, and the display panel is blackened to solve the afterimage problem.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a method and a device for eliminating afterimages after shutdown on a panel. Background technique [0002] In order to reduce the color shift of the liquid crystal display and increase the viewing angle range, the liquid crystal display is usually designed with a low color shift. The general approach is to increase the area of ​​pixels, and a pixel can generally be divided into 4 areas. However, if a pixel is divided into a main pixel area and a sub-pixel area, it can be increased to 8 areas, thereby improving the color shift and improving the viewing angle. Specifically, multiple different thin film transistors (Thin Film Transistor, TFT) are used to supply power to the pixel area (3T pixel design), that is, three TFTs are used to charge and discharge two pixel areas. When the gate (gateline) is turned on, charges are sent to the main pixel area and the sub pixel ar...

Claims

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Application Information

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IPC IPC(8): G09G3/36
CPCG09G3/3696G09G2320/0257G09G3/3648G09G2300/0876G09G2330/027G09G3/3674G09G3/3685
Inventor 黄北洲
Owner HKC CORP LTD
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