Display system and its gray scale display method and device

Abstract

The invention provides a display system as well as a gray scale display method and gray scale display device of the display system. The method comprises the following steps that the gray scale data y(x) of input display data x after gamma correction is determined, wherein x is an m-bit binary number, the y(x) is an n-bit binary number, and the m and the n are positive integers; a function t(x) is built according to the input display data x and the gray scale data y(x), wherein the t(x) is shown as the accompanying drawing; values of the function t(x) corresponding to 2<m> different input display data x are respectively marked as an array T[0:(2<m>-1)] in a order from the small one to the large one according to the input display data x; a formula shown as the accompanying drawing is used for controlling the effective duration of the input display data x during the scale display. The display system, the gray scale display method and the gray scale display device have the advantages that the rebound phenomenon during the gray scale display can be avoided, the information of original images is better displayed, and the image display quality is favorably improved.

Description

technical field [0001] The invention relates to a grayscale display technology, in particular to a display system and a grayscale display method and device thereof. Background technique [0002] Due to the advantages of LED display technology in the following aspects: high brightness, wide viewing angle, rich colors and customizable screen shapes, LED displays are widely used in industry, transportation, commercial advertisements, information release, sports competitions, etc. each field. [0003] In order to adapt to the luminous and electrical characteristics of the LED, the video signal must be corrected before being input to the LED display, otherwise serious color distortion will occur. In addition, the perception of human eyes and instruments to distinguish brightness level differences is different. The human eye is sensitive to low brightness level differences and cannot clearly distinguish high brightness level differences. This requires non-linear visual correctio...

AI Technical Summary

Problems solved by technology

The error value Δ is affected by the design of the driving circuit, the manufacturing process and the application environment, and it is difficult to control it in a small range. Therefore, the existing grayscale display method will be very prone to rebound phenomenon, and the grayscale actually displayed by the LED display Unable to truly express the information of the original display image, which will have a bad impact on the display effect and greatly reduce the image quality of the LED display

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