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System and method for auto adjusting brightness of display

An automatic adjustment and display technology, which is applied to static indicators, cathode ray tube indicators, components of TV systems, etc., can solve the problems of reducing user work efficiency and user trouble, and achieve the effect of improving work efficiency.

Inactive Publication Date: 2009-04-29
FOSHAN PREMIER SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such a manual adjustment method will make the user feel very troublesome, and also reduces the user's work efficiency

Method used

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  • System and method for auto adjusting brightness of display
  • System and method for auto adjusting brightness of display

Examples

Experimental program
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Embodiment Construction

[0012] Such as figure 1 Shown is a system architecture diagram of a preferred embodiment of the system for automatically adjusting the brightness of a display in the present invention. The system mainly includes a camera module 1 , a display 2 and a user 3 . The camera module 1 is connected with the display 2, and is used to calculate the distance between the user 3 and the display 2 according to the captured image of the user 3, and automatically calculate the brightness value of the display according to the distance. The display 2 adjusts the backlight intensity of the display screen according to the brightness value calculated by the camera module 1 .

[0013] Such as figure 2 shown, is figure 1 Functional module diagram of camera module 1 in China. The camera module 1 includes a motor control unit 10 , a light sensing unit 12 , a sharpness calculation unit 14 , an auto-focus unit 16 , an object distance calculation unit 18 , a brightness calculation unit 20 and a send...

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Abstract

The invention discloses an automatic display brightness adjustment method. The method comprises the following steps: controlling a camera lens of a camera module to move within a focusing range; capturing an image of a user at the camera lens position as soon as the camera lens moves a step; selecting a region on the captured image; carrying out matrix operation on each pixel in the selected region; summing up all results of the matrix operations on pixels in the region to get a definition value of the image; obtaining a curve according to the definition values of various images captured in the focusing range and the corresponding camera lens positions; getting a focal length of the camera lens according to the curve; calculating the distance between the user and a display (i.e., the object distance) according to the obtained focal length of the camera lens; and calculating a brightness value of the display according to the obtained object distance. Additionally, the invention also provides an automatic brightness display adjustment system.

Description

technical field [0001] The invention relates to a system and method for automatically adjusting the brightness of a display. Background technique [0002] In the actual process of using the display, the user may adjust the brightness of the display according to his location, so as to avoid eyestrain and discomfort caused by the brightness of the display being too bright or too dark. The traditional display adjustment method is a manual method, that is, the user adjusts through the brightness adjustment button under the display. Press the brightness adjustment button and an adjustment interface will appear, and the user can lower or increase the brightness of the display by using the left and right keys. However, such a manual adjustment method will make the user feel troublesome, and also reduce the work efficiency of the user. Contents of the invention [0003] In view of the above, it is necessary to propose a system for automatically adjusting the brightness of the di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B29/00G02B7/28G03B13/36H04N5/225G09G5/10
CPCG03B13/36G02B7/36H04N21/44008H04N21/42202G09G2320/0626G09G5/00H04N21/4318H04N5/57
Inventor 林敬顺
Owner FOSHAN PREMIER SCI & TECH CO LTD
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