Splicing screen driving method and splicing screen driving device

Abstract

The invention discloses a driving method and a driving device of a splicing screen. The driving method includes: acquiring a gray-scale value of each picture zone of splicing units and a gray-scale value of an adjacent picture zone of an adjacent splicing unit of each splicing unit; if the picture zone of the splicing unit is adjacent to the adjacent splicing unit, generating a brightness value of a backlight zone corresponding to the picture zone according to the gray-scale value of the picture zone and the gray-scale value of the adjacent picture zone of the adjacent splicing unit of the splicing unit; if the picture zone of the splicing unit is not adjacent to the adjacent splicing unit, generating a brightness value of the backlight zone corresponding to the picture zone according to the gray-scale value of the picture zone; performing backlight driving on each backlight zone according to the corresponding brightness value. By the driving method and the driving device, picture display abnormality is avoided, so that picture display quality is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a method for driving a splicing screen and a driving device for the splicing screen. Background technique [0002] At present, with the development of display technology, splicing screens are more and more widely used. For example, in the field of professional display, splicing screens can be flat-panel display splicing walls or LCD splicing monitoring systems. The splicing screen can use in-plane switching (In-Plane Switching, referred to as IPS) LCD or fringe field switching (Fringe Field Switching, referred to as FFS) LCD, IPS LCD and FFS LCD in the L0 grayscale screen and other grayscale screens There will be different degrees of edge light leakage. In the prior art, a local dimming (Local dimming) technology is generally used to solve the above light leakage problem. [0003] figure 1 It is a schematic display diagram of the splicing screen in the prior art, such as figu...

AI Technical Summary

Problems solved by technology

figure 1 The middle splicing screen displays the image of the ring, and the image of the ring is divided into the pictures displayed by different splicing units 1. The gray scale values ​​of different splicing units 1 differ greatly, resulting in the brightness of different splicing units 1. The value difference is large, so the display of the rings in the tiled unit 1, row 3, column 3 and tiled unit 1, row 3, column 3 is abnormal, which reduces the display quality

Images