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Gray scale transition adjusting method and apparatus

An adjustment method and gray-scale technology, which are applied to cathode ray tube indicators, instruments, static indicators, etc., can solve the problem of uneven gray-scale transition of the display screen, improve the screen display effect, solve the uneven gray-scale transition, Smooth grayscale transition

Active Publication Date: 2015-12-23
KUSN INFOVISION OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the object of the present invention is to propose a method and device for adjusting the grayscale transition to solve the problem of uneven grayscale transition of the display screen

Method used

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  • Gray scale transition adjusting method and apparatus
  • Gray scale transition adjusting method and apparatus
  • Gray scale transition adjusting method and apparatus

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] figure 2 It is a schematic diagram of the grayscale transition adjustment method provided by Embodiment 1 of the present invention. The method is suitable for adjusting the gray scale brightness of the display screens of televisions, computers, etc., and the method can be executed by a gray scale transition adjusting device, which can be implemented in the form of software and / or hardware. Such as figure 1 As shown, the method includes:

[0050] Step 110, adjusting the brightness value of the adjustable gray scale on the display screen to the preset gamma curve corresponding to the adjustable gray scale.

[0051] In this embodiment, a signal generator can be used to provide different grayscale signals that change with time, and optical acquisition equipment can be used to collect brightness and chromaticity values ​​under different grayscales; , calculate each gamma value, compare and fit it with the standard gamma curve, and generate a set of new gamma data within ...

Embodiment 2

[0067] image 3 It is a schematic diagram of the adjustment method of the gray scale transition provided by the second embodiment of the present invention. This embodiment is based on the above-mentioned embodiments, and further performs the following operations before judging whether there is an abnormal gray scale:

[0068] Group all grayscales in order; set the same preset percentage for the same group of grayscales, and set different preset percentages for different groups of grayscales; according to the preset percentage and the brightness of the grayscale adjacent to each grayscale The preset value is obtained by the difference between the values; the preset range is obtained according to the preset value and the brightness value of the gray scale adjacent to each level of gray scale.

[0069] The above operations set the judgment conditions for the preset range. In the case of improving the gray scale display effect, the preset range can be determined according to the ...

Embodiment 3

[0087] Figure 5 It is a structural block diagram of the gray scale transition adjustment device provided by Embodiment 3 of the present invention. Such as Figure 5 As shown, the device includes: an adjustable gray scale adjustment module 10 , a full gray scale scanning module 11 , a scan times judgment module 12 , an abnormal gray scale judgment 13 and an abnormal gray scale adjustment module 14 .

[0088] Wherein, the adjustable grayscale adjustment module 10 is used to adjust the brightness value of the adjustable grayscale on the display screen to the preset gamma curve corresponding to the adjustable grayscale;

[0089] The full-gray-scale scanning module 11 is used for performing full-gray-scale scanning on the display screen;

[0090] The number of scans judging module 12 is used to judge whether the number of full grayscale scans exceeds the preset number of times;

[0091] The abnormal gray scale judging module 13 is used to judge whether there is abnormal gray sc...

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Abstract

The invention discloses a gray scale transition adjusting method and apparatus. The method comprises: a brightness value of an adjustable gray scale on a display screen is adjusted to a preset gamma curve corresponding to the adjustable gray scale; full-gray-scale scanning is carried out on the display screen; whether the number of times of the full-gray-scale scanning exceeds the preset number of times is determined; if not, whether an abnormal gray scale exits is determined; if so, a high-grade adjustable gray scale closest to the abnormal gray scale and / or a low-grade adjustable gray scale closest to the abnormal gray scale are / or adjusted automatically and then full-gray-scale scanning is carried out on the display screen again until the abnormal gray scale is adjusted to a normal gray scale. According to the invention, a problem of non-uniform gray scale transition of the display screen can be solved and thus the gray scale transition of the display screen becomes smooth, thereby improving the screen displaying effect.

Description

technical field [0001] The invention belongs to the technical field of screen display, and relates to a gray scale transition adjustment method and device. Background technique [0002] In daily applications, no matter watching movies, playing games or browsing the web, the screen content cannot do without the transition between black and white, colorful and colorful pictures or changes in different levels of shades. These are the transitions between gray scales. The smoother the grayscale transition, the stronger the ability of the screen to control the brightness, and the richer the details in the dark. [0003] The existing method of automatically adjusting the grayscale transition is: using a color analyzer or other optical instruments, the current brightness of a certain grayscale of the display panel can be adjusted to the brightness corresponding to the specified gamma value through automatic programming. . Since the Driver IC has relatively few binding points for a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20G09G5/10
Inventor 何露李邦荣
Owner KUSN INFOVISION OPTOELECTRONICS
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