Backlight correction method of a display screen, device and computer-readable storage medium

Abstract

The invention discloses a backlight correction method of a display screen. The backlight correction method comprises the following steps: obtaining a brightness mura distribution picture of a displayscreen to be tested under a target gray scale, and performing data processing on the brightness mura distribution picture to generate a display screen mura data table; obtaining a brightness mura distribution picture of the display screen to be tested under a target gray scale; generating demura data under different gray scales according to a preset brightness correction data table and the displayscreen mura data table; the generated demura data is input to a signal driving circuit of the display to be tested to complete backlight correction of the display to be tested. The invention also discloses a backlight correction device of a display screen and a computer-readable storage medium. The invention reduces the photographing picture to one by canceling the photographing of the low gray scale, shortens the photographing time, provides the metronomic basis for the backlight Mura image correction batch production application, and further realizes the beneficial effect of improving the backlight correction efficiency of the display screen.

Description

technical field [0001] The present invention relates to the technical field of display screen backlight correction, in particular to a display screen backlight correction method, device and computer-readable storage medium. Background technique [0002] There are two kinds of LCD Mura (referring to the phenomenon that the brightness of the display is uneven and various traces are caused) and the backlight Mura caused by the liquid crystal manufacturing process and the backlight Mura caused by uneven backlight. The former is obvious in dark field, and the latter is in The performance is also obvious in the bright field, and if it is serious, it will affect the user's viewing experience. There are many ways to correct Cell Mura, but it requires a dark room, takes a long time to take photos, and expensive equipment, and the production line application is limited to products with high quality requirements. Backlight Mura is generally solved by changing the optical design, but t...

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Problems solved by technology

[0004] The main purpose of the present invention is to provide a method for correcting the backlight of a display screen, aiming to solve the technical problem of low efficiency in adjusting the backlight of the display screen due to the need for a long time to take pictures and process data when correcting the backlight of the display screen in the prior art

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