Display Panel Luminance Compensation Using Multi-Angle Data Tables
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Solution Overview
Problem
Current display technologies struggle to achieve uniform luminance across different viewing angles, as existing methods only compensate for luminance in a fixed viewing angle, leading to non-uniformity when viewed from varying positions.
Innovation Solution
A display compensation method that selects and generates compensation data tables for adjacent sub-pixel sets in different viewing angles, allowing for targeted luminance adjustments in both a first and second viewing angle to improve display uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a single compensation data table is used for luminance uniformity compensation, then the luminance uniformity can be improved in a fixed viewing angle, but the display uniformity deteriorates in different viewing angles
Solution Approach 1:
The patent divides the display panel into multiple sub-pixel sets based on their spatial positions and viewing angle characteristics. Different sub-pixel sets are assigned different compensation data tables (first compensation data table for first sub-pixel set, second compensation data table for second sub-pixel set) to achieve viewing-angle-specific luminance uniformity compensation
Solution Approach 2:
The patent applies different compensation strategies to different local regions of the display panel. By identifying sub-pixel sets in different viewing angle regions and applying locally-optimized compensation data tables, the system achieves improved luminance uniformity for each specific viewing angle region
2Manufacturing precision
If feature extraction is performed using industrial camera to obtain reverse grayscale data, then luminance compensation can be achieved, but the accuracy of feature extraction directly affects the compensation effect and increases system complexity
Solution Approach 1:
The patent pre-calculates and stores compensation data tables (first and second compensation data tables) for different sub-pixel sets and viewing angles before actual display operation. This preliminary preparation eliminates the need for real-time feature extraction during operation, reducing system complexity while maintaining compensation accuracy
Solution Approach 2:
The patent creates multiple compensation data tables (first compensation data table, second compensation data table) that are pre-generated copies of compensation parameters for different viewing angle scenarios. These pre-generated data tables are stored and directly applied during display operation, avoiding the need for complex real-time measurement and calculation systems
Data Source
AI summary
The present disclosure provides a display compensation method for a display panel, a method for generating a compensation data table, and a display device. A first display luminance corresponding to a first to-be-compensated sub-pixel set and a second display luminance corresponding to a second to-be-compensated sub-pixel set are respectively compensated by corresponding compensation data tables in different viewing angles. A plurality of first compensation data tables corresponding to the first viewing angle and a plurality of second compensation data tables corresponding to the second viewing angle are used to compensate for the first to-be-compensated sub-pixel set and the second to-be-compensated sub-pixel sets adjacent with each other.