Image brightness control method and device and display controller

A technology of image brightness and control method, which is applied in the field of image brightness control method, display controller, and image brightness control device, which can solve problems such as dim picture, reduced power consumption of display screen, loss of dark part details, etc., and achieve precise control function power consumption, precise brightness control effect

Pending Publication Date: 2022-05-31
XIAN NOVASTAR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the power consumption of the display screen is not greatly reduced by these two adjustment methods, and the above two brightness adjustment methods make the picture too dim when displaying a low-dark image, and the details of the dark part are lost.

Method used

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  • Image brightness control method and device and display controller
  • Image brightness control method and device and display controller
  • Image brightness control method and device and display controller

Examples

Experimental program
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no. 1 example

[0036] see figure 1 , an image brightness control method provided by an embodiment of the present invention, for example, includes the steps:

[0037] S11: receive an input image;

[0038] S13: Determine the average grayscale value of the input image according to the grayscale data of the input image;

[0039] S15: Based on the mapping relationship between the average gray value of the image and the brightness control coefficient, determine the target brightness control coefficient according to the average gray value of the image; and

[0040] S17: Perform brightness control on the input image according to the target brightness control coefficient.

[0041] Therefore, in this embodiment of the present invention, the average grayscale value of the input image is determined from the received grayscale data of the input image, and the target brightness control coefficient is determined based on the mapping relationship between the average grayscale value of the image and the br...

no. 2 example

[0104] see Image 6 , An image brightness control device 400 provided by an embodiment of the present invention includes, for example, an input image receiving module 410 , an image average grayscale determination module 430 , a control coefficient determination module 450 , and an image brightness control module 470 .

[0105] The input image receiving module 410 is used to receive the input image; the image average grayscale determination module 430 is used to determine the average grayscale value of the input image according to the grayscale data of the input image; the control coefficient determination module 450 is used to determine the average grayscale value of the input image. Based on the mapping relationship between the average gray value of the image and the brightness control coefficient, a target brightness control coefficient is determined according to the average gray value of the image; and the image brightness control module 470 is configured to perform brightn...

no. 3 example

[0122] like Figure 10 As shown, the third embodiment of the present invention provides an image brightness control system 500 . The image brightness control system 500 includes, for example, a memory 510 and a processor 530 connected to the memory 510 . The memory 510 may be, for example, a non-volatile memory on which the computer program 511 is stored. The processor 530 may be, for example, an embedded processor. When the processor 530 runs the computer program 511, the image brightness control method in the aforementioned first embodiment is executed.

[0123] For the specific working process and technical effect of the image brightness control system 500 in this embodiment, refer to the description of the foregoing first embodiment.

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Abstract

The embodiment of the invention discloses an image brightness control method and device and a display controller. The image brightness control method includes, for example, receiving an input image; determining an image average gray value of the input image according to the gray data of the input image; determining a target brightness control coefficient according to the image average gray value based on a mapping relation between the image average gray value and the brightness control coefficient; and performing brightness control on the input image according to the target brightness control coefficient. The brightness of the display screen can be dynamically adjusted according to the input image, and the power consumption of the display screen is limited.

Description

technical field [0001] The present invention relates to the technical field of image processing and display control, in particular to an image brightness control method, an image brightness control device and a display controller. Background technique [0002] With the rapid development of display technology such as LED display technology, LED display screens are currently used in various fields due to their advantages of high brightness, wide viewing angle, long life, and freedom of assembly. However, due to the high brightness of the LED screen, its power consumption problem is also attracting more and more attention. Especially when the average grayscale of the image displayed by the LED display increases, the power consumption of the LED display increases. In addition, as the dot pitch of the LED screen becomes smaller and smaller, the heating of the display screen becomes more and more serious, which not only brings about an increase in power consumption, but also caus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32
CPCG09G3/32G09G2320/0626
Inventor 刘思洋杨城
Owner XIAN NOVASTAR TECH
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