Intelligent luminance control induction method

Abstract

The invention relates to an intelligent luminance control induction method, which is characterized by comprising the following steps of: first acquiring the luminance of an ambient environment by a luminance sensor; then performing a sampling automatic correction algorithm for a plurality of times to reduce the interference of the luminance variations of the ambient environment to obtain stable luminance; next reducing the luminance variations by an analogue hysteresis comparison algorithm, and setting stable pulse width modulation signals for controlling the backlight of a liquid crystal panel; and finally adjusting the backlight of the liquid crystal panel by the pulse width modulation signals to obtain most comfortable picture luminance adapted to the environment. The method has the advantages of solving the problem of the picture flickering of a display caused by the influence of the luminance variations of the environment, enabling users to appreciate programs under the most comfortable luminance at any time and simultaneously reducing the fatigue strength of eyes.

Description

technical field [0001] The invention belongs to the technical field of liquid crystal televisions, and in particular relates to a method for intelligently controlling brightness sensing. Background technique [0002] With the rapid development of digital technology and the more and more complete functions of LCD TVs, the human-computer interaction interface is becoming more and more friendly. It is possible to design a gorgeous OSD menu interface for personalized adjustment of channels, colors, brightness, contrast, volume, etc. set up. LCD TV pursues the development of high brightness and high contrast, although it is beneficial to color display, if it is too bright or too dark, it will easily make the eyes more tired. In an existing LCD TV, the brightness can be brightened or dimmed through the OSD menu or the keys on the keypad. High-end LCD TVs can also automatically adjust the brightness according to the current brightness changes in the surrounding environment, so th...

AI Technical Summary

Problems solved by technology

The existing automatic brightness control method of LCD TV is not ideal. When the brightness of the surrounding environment suddenly becomes brighter, the LCD TV automatically starts to adjust the brightness; when the brightness of the surrounding environment suddenly becomes dark, the LCD TV automatically starts to dim the brightness.

Since the brightness of the surrounding environment changes from bright to dark, and the change time from dark to bright is very short, the LCD TV also automatically adjusts from dark to bright, and from bright to dark, so the flickering changes seen on the LCD screen , which greatly affects the user's appreciation of the program and increases eye fatigue

Therefore, in order to solve the problem that the brightness can be automatically controlled without causing the screen to flicker, so that users can enjoy programs at the most comfortable brightness at any time, it has become an important bottleneck affecting the further improvement of LCD TVs.

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