A method for reducing power consumption of liquid crystal display based on frequency of appearance of images

Abstract

The invention discloses an image occurrence frequency based liquid crystal display power consumption reducing method. A gain coefficient alpha corresponding to an image which is not similar to a histogram in cache or a histogram in a front frame image is calculated, the newly calculated gain coefficient alpha is used to respectively adjust light transmissivity and backlight intensity of a liquid crystal display; a gain coefficient alpha corresponding to an image which is similar to the histogram in cache or the histogram in the front frame image is directly called to respectively adjust light transmissivity and backlight intensity of the liquid crystal display. When the times of lightening a screen are integer multiples of x, the cache is updated to some images with higher continuous occurrence frequencies and gain coefficients alpha corresponding to the images; by means of repeated occurrence of the images and the property of infrequent changes of a lock screen and a main screen of a terminal end, backlight of the liquid crystal display is adjusted, the calculation amount of the gain coefficients alpha is greatly reduced, and the power consumption is low.

Description

technical field [0001] The invention relates to a method for reducing power consumption of a liquid crystal display, in particular to a method for reducing power consumption of a liquid crystal display based on image appearance frequency. Background technique [0002] Liquid Crystal Display (LCD), as a display device with low power consumption and thin plane, is more and more widely used, ranging from small-screen handheld players to large-screen LCD TVs and computer monitors. occupy an increasingly important position. With the continuous development of the communication industry, terminals with liquid crystal displays have also evolved from a single function to voice, data, image, music and multimedia. As the terminal functions become more and more powerful, its power consumption is also increasing. The larger the size, the lower the power consumption of LCDs is of great significance for saving energy and realizing a green society, so the energy consumed by LCDs has attrac...

AI Technical Summary

Problems solved by technology

Compared with CCFL backlight system, the power consumption of LED backlight system is lower than that of CCFL backlight system, but its overall power consumption is still relatively high, and it also increases the production cost.

However, the method of directly reducing the brightness of the backlight source to reduce power consumption will bring about poor display effects if the degree of reducing the brightness of the backlight source is not well grasped.

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