Adjustment method of output brightness, adjustment method of Gamma curve and display device

An adjustment method and technology of a display device, which are applied in the directions of cathode ray tube indicators, static indicators, instruments, etc., can solve the problem of low contrast of the display screen, and achieve the effect of improving the display effect and increasing the brightness and contrast.

Inactive Publication Date: 2016-08-24
SHENZHEN TINNO WIRELESS TECH
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Problems solved by technology

[0003] In the prior art, when the gamma adjustment is performed on the image, the same gamma adjustment is performed on the entire screen as a whole, resulting in changes in the entire display screen, so that the contrast of the display screen is not high

Method used

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  • Adjustment method of output brightness, adjustment method of Gamma curve and display device
  • Adjustment method of output brightness, adjustment method of Gamma curve and display device
  • Adjustment method of output brightness, adjustment method of Gamma curve and display device

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Embodiment Construction

[0027] refer to figure 1 , a schematic flow chart of the first embodiment of the method for adjusting the output brightness of the present invention, the method includes:

[0028] S11: Divide the image into multiple sub-images.

[0029] Wherein, in the display device, dividing an image into multiple sub-images refers to dividing an image of each frame into multiple sub-images. The steps in this embodiment are also a process for processing each frame of image. In addition, on devices such as printers and scanners, the input screen for each page may be divided.

[0030] Optionally, the method of dividing the image into multiple sub-images may be to divide the entire rectangular picture into multiple small rectangles arranged vertically and horizontally, such as 3*3, 4*4, 4*3 and other division methods, wherein figure 2 A 4*4 image division manner is shown, with 16 sub-images in total.

[0031] Optionally, in other embodiments, the image can also be divided irregularly by id...

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Abstract

The invention discloses an adjustment method of output brightness, an adjustment method of a Gamma curve and a display device. The adjustment method of output brightness includes the following steps that: an image is divided into a plurality of sub images; the gray scale values of each pixel in the sub images are acquired; and the output brightness of each sub image is adjusted according to the gray scale value distribution condition of each sub image. With the adjustment method of the output brightness of the invention adopted, the brightness of a display image can be adjusted regionally, and a display effect can be improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a method for adjusting output brightness, a method for adjusting Gamma curves and a display device. Background technique [0002] Gamma curve (gamma curve) is a fairly common and important concept in input and output devices such as monitors, scanners, and printers. In the computer system, due to the graphics card or monitor, the actual output image may have deviations in brightness, and the Gamma curve adjustment is a method to adjust this deviation of the image through a certain method. In general, when the value used for Gamma adjustment is greater than 1, the highlight part of the image is compressed and the dark part is expanded. When the value of Gamma adjustment is less than 1, the highlight part of the image is expanded and the dark part is compressed. Gamma adjustment is generally used to smoothly expand the details of dark tones. [0003] In the prior art, when the G...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G5/10
CPCG09G5/10
Inventor 曹永明
Owner SHENZHEN TINNO WIRELESS TECH
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