Backlight control method and device and computer readable storage medium

Abstract

The invention discloses a backlight control method. The backlight control method comprises the following steps of acquiring the maximal gray value of each area in the current video image and the ambient brightness value of the current environment; acquiring the average gray value of each area; determining the weighted values of the maximal gray value, the average gray value and the ambient brightness value, and calculating first weighted average values of the maximal gray value, the average gray value and the ambient brightness value; determining a backlight adjustment value of each area basedon the first weighted average values; and sending the backlight adjustment value to a backlight control circuit, so that the backlight value of each area is regulated. The invention further disclosesa backlight control device and a computer readable storage medium. According to the technical scheme of the invention, the first weighted average values of the maximal gray value and the average grayvalue of each area and the ambient brightness value are calculated, thus the backlight adjustment value is determined, the backlight crosstalk of the close regions and the influences of ambient lightduring backlight adjustment are reduced, and the adjusting effect of backlight brightness is enhanced.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display screens, in particular to a backlight control method, device and computer-readable storage medium. Background technique [0002] Today, liquid crystal display has become the mainstream technology of flat panel display due to its low power consumption, light weight, relatively thin thickness, and relatively gorgeous color display, and is widely used in our daily consumer electronic products. , such as laptops, mobile phones, GPS, home TVs, etc. Since the liquid crystal display itself does not emit light by itself, it needs to install a backlight behind the projection type liquid crystal panel, and then modulate the effect of the video image through the probability of the transmitted light of the LED liquid crystal unit, so as to achieve the desired display effect. images of dynamic scenes. At present, the light-emitting diode backlight of liquid crystal display has gradually replac...

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a backlight control method, aiming to solve the backlight crosstalk phenomenon caused by the backlight brightness in the adjacent area when the backlight brightness is adjusted, and the ambient brightness will also affect the adjustment of the backlight brightness, resulting in poor effect of backlight brightness adjustment technical issues

Images