Driving method, driving device and display equipment

A driving method and display device technology, applied to static indicators, instruments, etc., can solve the problems of different pixel potential reduction, potential reduction, and different screen brightness, so as to improve the flickering phenomenon of the screen, reduce the reduction degree, and keep the brightness of the screen consistent Effect

Pending Publication Date: 2021-12-17
HKC CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, leakage will inevitably occur when the potential is maintained after the pixel is charged, resulting in a decrease in the potential. The brightness of the screen under the refresh rate is different, and in severe cases, the screen will flicker

Method used

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  • Driving method, driving device and display equipment
  • Driving method, driving device and display equipment
  • Driving method, driving device and display equipment

Examples

Experimental program
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Effect test

Embodiment 1

[0039]A method for driving a display device provided in an embodiment of the present application can be executed by a processor of the display device when running a corresponding computer program, and is used for refreshing the refresh rate of the current frame picture displayed on the display device and the refresh rate of the reference frame picture. When the frequencies are different, adjust the common voltage of all pixels in the second vertical blank gap, so that when displaying the reference frame picture, the root mean square (Root- Mean-Square, RMS), and the difference between the root mean square of the difference between the common voltage and the pixel voltage of all pixels in the second vertical blank gap when the current frame is displayed is within the preset voltage difference range , which can effectively reduce the difference between the degree of reduction of the pixel potential of the display device at different refresh rates, so that the brightness of the sc...

Embodiment 2

[0091] Such as Figure 11 As shown, in this embodiment, after step S101 and before step S102 in the first embodiment, the following step S200 is included:

[0092] Step S200, according to the refresh frequency of the current frame picture and the preset corresponding relationship, obtain the target common voltage at the refresh frequency of the current frame picture;

[0093] Wherein, the preset corresponding relationship is the corresponding relationship between the preset refresh frequency and the target common voltage at the preset refresh frequency.

[0094] In the application, the vertical blank gap of the display device is different under different refresh rates, resulting in different degrees of reduction in the potential of the pixels, which also makes the target common voltage of the display device different under different refresh rates. Therefore, it is possible to detect the display device in advance. multiple target common voltages at different preset refresh fre...

Embodiment 3

[0108] The embodiment of the present application also provides a display device driving device, implemented based on a processor of the display device, and configured to execute the steps in the foregoing driving method embodiments. The driving device may be a virtual appliance (virtual appliance) in the display device, run by a processor of the display device, or the display device itself.

[0109] Such as Figure 13 As shown, the driving device 100 provided in the embodiment of the present application includes:

[0110] The first acquiring unit 101 is configured to acquire the refresh rate of the current frame picture;

[0111] The first adjustment unit 102 is used to adjust the common voltage of all pixels in the second vertical blank gap if the refresh frequency of the current frame picture is different from the refresh frequency of the reference frame picture, so that the difference between the first voltage difference and the second voltage difference The difference be...

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Abstract

The invention is suitable for the technical field of display, and provides a driving method, a driving device and display equipment. The driving method comprises: obtaining the refresh frequency of a current frame of picture; If the refresh frequency of the current frame of picture is different from the refresh frequency of the reference frame of picture, adjusting the common voltage of all pixels in a second vertical blank interval, so that the difference value between the root mean square of the difference value between the common voltage of all the pixels in the first vertical blank interval and the pixel voltage when the reference frame of picture is displayed and the root mean square of the difference value between the common voltage of all the pixels in the second vertical blank interval and the pixel voltage when the current frame of picture is displayed is within a preset voltage difference value range. The difference between pixel potential reduction degrees of the display equipment under different refresh frequencies can be effectively reduced, so that the brightness of pictures displayed by the display equipment under different refresh frequencies tends to be consistent, and the phenomenon of picture flicker is improved.

Description

technical field [0001] The present application belongs to the field of display technology, and in particular relates to a driving method, a driving device and a display device. Background technique [0002] With the continuous development of display technology, various types of display devices emerge in an endless stream, bringing great convenience to people's daily production, life and entertainment. The standard static refresh display device has a fixed refresh rate. When the frame rate of the graphics card is different from the refresh rate of the display device, screen tearing will occur. Frame synchronization (FreeSync) technology, by increasing the vertical blank interval (Vertical Blank Interval, VBI) when the display device displays each frame, that is, prolonging the holding time of the pixel voltage of each pixel of the display device, to reduce the display device. Refresh frequency, which can synchronize the refresh rate of the display device with the frame rate ...

Claims

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Application Information

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IPC IPC(8): G09G3/3208G09G3/32G09G3/36
CPCG09G3/3208G09G3/32G09G3/3648G09G3/36G09G2320/0252G09G2320/0626G09G2310/0254G09G2310/061G09G2320/0233G09G2320/0247G09G2340/0435G09G2330/021G09G3/20
Inventor 李泽尧袁海江
Owner HKC CORP LTD
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