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Backlight control method and device and computer readable storage medium

A technology of backlight control and backlight value, applied in the fields of devices, computer-readable storage media, and backlight control methods, capable of solving problems such as inability to guarantee image contrast and distortion at the same time

Active Publication Date: 2018-08-10
SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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 technical problem that the existing backlight control method cannot guarantee image contrast and distortion at the same time

Method used

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  • Backlight control method and device and computer readable storage medium
  • Backlight control method and device and computer readable storage medium
  • Backlight control method and device and computer readable storage medium

Examples

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no. 1 example

[0093] Based on the first embodiment, the second embodiment of the backlight control method of the present invention is proposed, referring to image 3 , in this embodiment, step S20 includes:

[0094] Step S21, using the maximum value algorithm to calculate the gray value of each pixel;

[0095] Step S22, calculating an average gray value based on the gray value using an average value algorithm;

[0096] In step S23, the backlight of the entire area is corrected based on the backlight correction function to obtain the first backlight value.

[0097]In this embodiment, the gray value refers to the color depth of a point in a black-and-white image, generally ranging from 0 to 255, where white is 255, and black is 0. The maximum RGB value in all pixels is calculated using the maximum value algorithm, and the The maximum RGB value is used as the gray value of the pixel, and the average gray value is calculated using the average value algorithm. Specifically, first calculate the...

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Abstract

The invention discloses a backlight control method, and the method comprises the following steps: obtaining all pixels of each region of an image; calculating a first backlight value based on the pixels, and carrying out the threshold limiting of the first backlight value, so as to obtain a second backlight value limited by a threshold value and a third backlight value which is not limited; transmitting the second backlight value a backlight control circuit, carrying out the backlight compensation for the image based on the third backlight value, and transmitting the image to a liquid crystaldisplay screen after compensation. The invention also discloses a backlight control device and a computer readable storage medium. The method achieves the calculation of the backlight value for the backlight compensation of the image, and achieves the adjustment of the liquid crystal grids of the liquid crystal display screen, thereby improving the contrast, achieving the good restoration of the image, and guaranteeing the distortion of the image. Moreover, the method is simple.

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...

Claims

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Application Information

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IPC IPC(8): G09G3/34G09G3/36
CPCG09G3/3406G09G3/36G09G2360/16G09G2320/0646G09G2320/0238G09G3/3426G09G3/3611G09G2320/066
Inventor 林艺霖
Owner SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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