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Method and device for adjusting grid turn-off voltage and display equipment

A technology of turning off voltage and adjusting method, applied in static indicators, instruments, etc., can solve problems such as incomplete gate turn-off of thin film transistors, and decreased display contrast of pixels in the display area.

Active Publication Date: 2017-07-04
HKC CORP LTD +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The present invention provides a gate cut-off voltage adjustment method, device and display device to solve the problem that the display contrast of the pixels in the display area is reduced due to incomplete turn-off of the gate of the thin-film transistor with the increase of the working time of the display panel

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  • Method and device for adjusting grid turn-off voltage and display equipment
  • Method and device for adjusting grid turn-off voltage and display equipment
  • Method and device for adjusting grid turn-off voltage and display equipment

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Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0022] Figure 1a It is a flow chart of a method for adjusting gate turn-off voltage provided by an embodiment of the present invention. The method of this embodiment can be implemented by the device for adjusting the turn-off gate voltage. Such as Figure 1a As shown, the method for adjusting the gate turn-off voltage provided in this embodiment specifically includes:

[0023] S110. Obtain the contrast ratio of the display brightness of the display panel by using at least one photosensitive element.

[0024] Wh...

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Abstract

The embodiment of the invention discloses a method and device for adjusting grid turn-off voltage and display equipment. The method for adjusting the grid turn-off voltage includes the following steps: obtaining the contrast ratio of the display brightness of a display panel through at least one photosensitive element; and comparing the contrast ratio with an initial contrast ratio, and if the difference value of the contrast ratio and the initial contrast ratio is larger than a set threshold, adjusting the grid turn-off voltage of the display panel. By adoption of the technical scheme provided by the embodiment of the invention, the problem that as working hours increase, grid turn-off of a thin film transistor of the display panel is incomplete, and the pixel display contrast ratio of a display area declines can be solved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of display driving, and in particular, to a method, device and display device for adjusting gate cut-off voltage. Background technique [0002] Thin Film Transistor Liquid Crystal Display (TFT-LCD) is one of the main types of flat panel displays at present, and has become an important display platform in modern IT and video products. The main driving principle of TFT-LCD is that the main board of the system connects the R / G / B compressed signal and control signal to the connector on the control board (ControlBoard, C-Board) through the wire, and the data signal and control signal pass through the timing on the control board. After the controller (Timing Controller, TCON) IC is processed, it is transmitted to the PCB board through the flexible flat cable (Flexible Flat Cable, FFC), and then through the Source-Chip on Film (S-COF) and the gate respectively. A chip-on-film (Gate-Chip on Fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G3/3648G09G2320/066G09G2360/145G09G2320/0626G09G2360/14
Inventor 陈猷仁
Owner HKC CORP LTD
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