Liquid crystal display picture brightness automatic regulating device and its method

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...

AI Technical Summary

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.

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