Display Image Brightness Adjustment via Color Channel Grayscale Control
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Solution Overview
Problem
Liquid crystal display panels exhibit noticeable brightness differences when displaying image frames of a video, affecting image quality.
Innovation Solution
A method that involves obtaining brightness information from multiple color channels, identifying channels with abnormal brightness, determining a target grayscale based on stimulus information, and adjusting the displayed image's brightness and chromaticity to reduce these differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If liquid crystal display panels are used to display video image frames, then display resolution is improved, but brightness differences occur on the same image frame
Solution Approach 1:
The patent changes the display parameters by adjusting the grayscale values of color channels. It determines abnormal grayscale information based on brightness information and adjusts the displayed image's brightness and chromaticity to reduce brightness differences, thereby improving brightness uniformity while maintaining high display resolution
Solution Approach 2:
The patent implements a feedback mechanism by obtaining brightness information of multiple color channels, determining abnormal brightness, and adjusting the displayed image based on the determined abnormal grayscale information. This closed-loop approach continuously monitors and corrects brightness differences to achieve uniform illumination intensity
Data Source
AI summary
Disclosed is a method for adjusting a displayed image. The method includes obtaining brightness information of a plurality of color channels of a currently displayed image; determining a target color channel with abnormal brightness from the plurality of color channels based on the brightness information; obtaining stimulus information of the target color channel, and determining a target grayscale from a predetermined grayscale interval based on the stimulus information; and determining brightness and chromaticity corresponding to the target grayscale, and adjusting the displayed image based on the brightness and chromaticity corresponding to the target grayscale.