Display brightness adjusting method and device thereof and display device

A technology for displaying brightness and display devices, which is applied to static indicators, cathode ray tube indicators, instruments, etc., can solve the problems of affecting the display effect and uneven display of display devices, so as to avoid causing mura and reducing the phenomenon of uneven display brightness. probability, avoid the effect of stroboscopic

Active Publication Date: 2020-11-24
BLACK COW FOOD
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  • Application Information

AI Technical Summary

Problems solved by technology

Existing brightness adjustment methods will cause display unevenness (mura) in the display device, thereby affecting the display effect

Method used

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  • Display brightness adjusting method and device thereof and display device
  • Display brightness adjusting method and device thereof and display device
  • Display brightness adjusting method and device thereof and display device

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Embodiment Construction

[0045] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0046]As mentioned in the background art, the brightness adjustment method of the existing display device will cause display unevenness (mura) in the display device, thereby affecting the display effect. The inventors found that the reasons for the above problems are as follows: In the existing brightness adjustment methods, the application of DC dimming can obtain better color and brightness accuracy, and there will be no stroboscopic phenomenon, but it will appear in the low brightness range. More obvious mura. ...

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Abstract

The invention discloses a display brightness adjusting method and a device thereof and a display device. The display brightness adjusting method comprises the following steps: an initial dimming conversion brightness level of the display device is set; the mura degree of a display image of the display device between the dimming conversion brightness level and the highest display brightness level is determined; wherein the display brightness is adjusted in a PWM dimming mode in an interval formed by the lowest display brightness level and the dimming conversion brightness level, and the displaybrightness is adjusted in a DC dimming mode in an interval formed by the dimming conversion brightness level and the highest display brightness level; and the dimming conversion brightness level is adjusted according to the mura degree of the display image to obtain an optimal dimming conversion brightness level, wherein the mura degree of the display image of the display device between the optimal dimming conversion brightness level and the highest display brightness level meets a preset mura degree. According to the technical scheme, the probability of uneven display brightness of the display device is reduced, and the display effect of the display device is optimized.

Description

technical field [0001] Embodiments of the present invention relate to the field of display technologies, and in particular, to a method and device for adjusting display brightness and a display device. Background technique [0002] With the development of display technology, people have higher and higher requirements on the display effect of display devices. [0003] Currently, brightness adjustment methods of a display device generally include Direct Current (DC) dimming and Pulse Width Modulation (Pulse Width Modulation, PWM) dimming. The existing brightness adjustment method will cause display unevenness (mura) in the display device, thereby affecting the display effect. Contents of the invention [0004] Embodiments of the present invention provide a method and device for adjusting display brightness and a display device, so as to realize dynamic adjustment of the brightness level of dimming conversion and optimize the display effect of the display device. [0005] I...

Claims

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Application Information

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IPC IPC(8): G09G5/10
CPCG09G5/10G09G2320/0233G09G2320/0626
Inventor 刘亚辉王峥
Owner BLACK COW FOOD
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