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Brightness control method and device of display panel

A display panel and control method technology, applied to static indicators, cathode ray tube indicators, instruments, etc., can solve the problems of uneven brightness of display panels, uncomfortable viewing for users, uneven brightness, etc.

Active Publication Date: 2019-04-16
ANALOGIX CHINA SEMICON +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a method and device for controlling the brightness of a display panel, so as to at least solve the technical problem that the display panel may cause uneven brightness due to signal attenuation, which is prone to uneven brightness and causes uncomfortable viewing for users.

Method used

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  • Brightness control method and device of display panel
  • Brightness control method and device of display panel

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Embodiment 1

[0034] According to an embodiment of the present invention, an embodiment of a method for controlling the brightness of a display panel is provided. It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and , although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0035] In the embodiment of the present invention, the entire display area on the display panel can be divided into distribution sub-regions of the same size in advance, and the number of distribution sub-regions can be set by itself, for example, divided into 9 distribution sub-regions of the same size. Currently, due to the circuit layout of the display panel, after an analog signal (such as input current / voltage) is input at one end of the display panel (such as the bottom of the ...

Embodiment 2

[0072] image 3 is a schematic diagram of a control device for brightness of a display panel according to an embodiment of the present invention, such as image 3 As shown, the device may include: an acquisition unit 31, a determination unit 33, a calculation unit 35, an adjustment unit 37,

[0073] An acquisition unit 31, configured to acquire a plurality of distribution sub-areas of the display panel and pixel values ​​of each distribution sub-area, wherein each distribution sub-area corresponds to an initial pixel compensation value;

[0074] A determining unit 33, configured to determine a pixel compensation coefficient corresponding to the pixel value of each of the distribution sub-regions;

[0075] Calculation unit 35, for calculating the target pixel compensation value corresponding to each distribution sub-region according to the initial pixel compensation value and pixel compensation coefficient of the distribution sub-region;

[0076] The adjustment unit 37 is con...

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Abstract

The invention discloses a brightness control method and device of a display panel. The method comprises the following steps: acquiring multiple distribution sub-regions of the display panel and a pixel numerical value of each distribution sub-region, wherein each distribution sub-region is corresponding to an initial pixel compensation value; determining a pixel compensation coefficient corresponding to the pixel numerical value of each distribution sub-region; computing a target pixel compensation value corresponding to each distribution sub-region according to the initial pixel compensationvalue and the pixel compensation coefficient of each distribution sub-region; and adjusting the pixel output numerical value of each distribution sub-region of the display panel by utilizing the target pixel compensation value, thereby controlling the screen brightness of the display panel. The control method disclosed by the invention solves the technical problem that the watch of the user is uncomfortable since the uneven brightness phenomenon easily occurs in the display panel due to signal attenuation.

Description

technical field [0001] The invention relates to the field of control of display panels, in particular to a method and device for controlling brightness of a display panel. Background technique [0002] In related technologies, display panels (panal) often have uneven brightness and various display traces. There are many reasons for this phenomenon, one of which is due to the circuit layout process in the display panel, resulting in The attenuation of the input signal is inconsistent, resulting in regular differences in display brightness. Since the driver chip of the terminal is generally located at the bottom of the terminal, the signal is attenuated from the bottom of the panel to the top of the panel. For example, when the same value is input to each area of ​​​​the display panel , the brightness of the display panel is not uniform. In the vertical direction, the brightness of the top of the panel will be weaker than that of the bottom of the terminal, and the brightness ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G5/10
CPCG09G5/10G09G2320/0233
Inventor 焦歆
Owner ANALOGIX CHINA SEMICON
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