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Method for regulating brightness of display device

A technology of display device and height adjustment, which is applied to static indicators, cathode ray tube indicators, instruments, etc., and can solve the problems of high hardware requirements, large errors, and large amount of computation

Inactive Publication Date: 2015-05-27
ANHUI NORMAL UNIV
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Problems solved by technology

[0003] However, when the ambient light is very strong, if the brightness of the display device is simply increased according to the linear relationship, the human eye will feel very uncomfortable; and at dawn or dusk, the human eye distinguishes objects through the combination of day vision and dark vision. effective
Therefore, it is not optimal to adjust the brightness of the display device through a linear equation; if a complex logarithmic operation is used, the amount of calculation is very large, which will require high hardware, resulting in high cost and slow calculation speed. It is necessary to repeatedly perform approximate operations on floating-point numbers, resulting in large errors

Method used

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  • Method for regulating brightness of display device

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Embodiment Construction

[0025] specific implementation

[0026] Specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0027] refer to figure 1 A method for adjusting brightness of a display device, comprising a photosensitive module, a central control module, a manual adjustment module, a display drive module and a display panel.

[0028] The photosensitive module transmits the collected ambient light intensity signal and the brightness signal of the display device to the central control module. The central control module is based on the cubic function relationship between the ambient light intensity and the brightness of the display device , calculate the theoretical brightness of the display device, and then compare the calculated theoretical brightness of the display device with the actual brightness of the display device to determine whether the brightness of the display device needs to be adjusted. If necessary, send a contro...

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Abstract

A method for regulating the brightness of a display device includes giving a cubic relational expression between environmental illuminance and the brightness of a display; giving correction methods for various parameters in the relational expression; and regulating the brightness of the display device according to the relational expression which is a cubic function. By the aid of the method, problems caused by nonlinear characteristics of human vision can be effectively solved, particularly, the problems caused by the nonlinear characteristics of the human vision under conditions that the environmental illuminance is high or the luminance is quite low in dawn and dusk are solved, and the brightness of displayed content of the display device is quite suitable for users.

Description

technical field [0001] The invention relates to a method for adjusting the brightness of a display device, in particular to a method for automatically adjusting the brightness according to the ambient light intensity and being able to manually adjust the brightness. technical background [0002] Currently, a display device has become an important device, which is widely used in various fields. However, the existing display devices still have some deficiencies. In order to allow users to use the display device comfortably under ambient light with different illuminance, the display device should be able to automatically adjust the brightness according to the ambient light; in order to meet the individual needs of each user for the brightness of the display device, the brightness of the display device should be able to User manual adjustment. In the Chinese invention patent with the publication number "CN101777334B" titled "Display Terminal Capable of Automatic Brightness Adj...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G5/10
Inventor 朱向冰李康高菲菲蔺玉柱王迅吴杰叶为全
Owner ANHUI NORMAL UNIV
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