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Liquid crystal display picture brightness automatic regulating device and its method

An automatic adjustment and brightness technology, applied to static indicators, current supply devices, cathode ray tube indicators, etc., can solve the problem of unable to maintain the brightness of the LCD display, changes in the brightness of the background lighting around the terminal camera, and the brightness of the LCD display cannot cope And other issues

Inactive Publication Date: 2004-10-13
INSPUR LG DIGITAL MOBILE COMMUNICATIONS CO LTD
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Problems solved by technology

[0010] However, in the above-mentioned conventional terminals, the brightness of the LCD screen is often fixed at the factory state, or can only be adjusted by turning on / off the background lighting according to the settings of the terminal user. Therefore, it cannot be adjusted according to the background around the terminal camera. Lighting brightness to adjust LCD display brightness
[0011] Therefore, there is a problem that the brightness of the LCD screen cannot cope with the change in the brightness of the background lighting around the terminal camera, and the brightness of the LCD screen cannot be maintained vividly.

Method used

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  • Liquid crystal display picture brightness automatic regulating device and its method
  • Liquid crystal display picture brightness automatic regulating device and its method
  • Liquid crystal display picture brightness automatic regulating device and its method

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Embodiment Construction

[0023] Beneficial embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0024] figure 1 It is a brief block diagram of the internal structure of a mobile communication terminal equipped with a camera according to an embodiment of the present invention. As shown in the figure, it has an image detection and image processing unit (110) and a video signal codec (120). Among them, the image detection and image processing part (110) uses the terminal camera to take the image of the subject, and then converts it into the format of brightness (Y) and color information (V) that the video signal codec (120) can use; the video signal A codec (120) generates an actual video image using the signal output from the image detection and image processing unit (110).

[0025] It also has the following parts: LCD control section (130), which is used to display image information from the above-mentioned video signal codec (120) on t...

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Abstract

The invention provides a LCD screen brightness automatic-adjusting device and method, making histogram analysis on the shot object's image data obtained by the camera installed at the mobile communication terminal in order to grasp the brightness state and automatically adjust the corresponding LCD screen brightness. Thus, it include two parts: image detecting and processing part, to detect the image data and processing the detected image data; histogram processing part, according to the brightness around the shot object, to detect the brightness information of each pixel and process, and then control the terminal LDC screen to display the brightness information. It provides such a useful effect, i.e. according to the brightness of the shot object, the terminal LCD screen brightness is automatically adjusted, thus able to keep the optimal brightness state all along.

Description

technical field [0001] The invention relates to a device and method for automatically adjusting the brightness of an LCD (liquid crystal display) display screen. Carrying out histogram analysis, mastering the state of brightness, and then automatically adjusting the brightness of the corresponding LCD display screen, an LCD display screen brightness automatic adjustment device and method thereof. Background technique [0002] Recently, due to the rapid development of mobile communication technology, image communication has become a reality, and various mobile communication terminals and related technologies have been publicly unveiled. [0003] In order to carry out image communication using most mobile communication terminals, a camera is installed in the terminal. Among them, the image sensor of the camera mainly uses a charge coupled device (Charge Couple Device), and the display device mainly uses an LCD. [0004] The feature of the above-mentioned LCD is that it can f...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/73G09G3/34H04M1/725H04N5/57
CPCG09G2330/021G09G2320/0626G09G3/3406G09G2360/144G09G2320/0633H04N5/57
Inventor 金鲁淳
Owner INSPUR LG DIGITAL MOBILE COMMUNICATIONS CO LTD
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