Sub-Pixel Compensation Mapping for Uniform Micro OLED Brightness
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Solution Overview
Problem
Inconsistent screen brightness and color in micro OLED displays due to differences in display performance between single-channel and non-single-channel sub-pixels when using a unified compensation value.
Innovation Solution
A pixel compensation method that determines a sub-pixel ratio and average load value, and uses hybrid or single dynamic lookup tables to calculate customized compensation values based on the sub-pixel ratio, ensuring accurate brightness and color adjustment for each type of sub-pixel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a unified compensation value is applied to all sub-pixels, then the compensation process is simple, but the screen brightness and color become inconsistent
Solution Approach 1:
The patent applies different compensation values to different types of sub-pixels (single-channel vs. non-single-channel) based on their specific display characteristics. This local differentiation ensures that each sub-pixel type receives customized compensation, resolving the brightness and color inconsistency while maintaining a relatively simple implementation approach.
2Manufacturing precision
If different compensation values are applied to single-channel and non-single-channel sub-pixels, then display consistency is improved, but the compensation system becomes more complex
Solution Approach 1:
The patent segments the sub-pixels into two distinct categories: single-channel sub-pixels and non-single-channel sub-pixels. Each category is assigned its own compensation value based on its specific display characteristics. This segmentation approach achieves accurate compensation for each type while keeping the system manageable by clearly defining the classification and compensation rules.
3Ease of operation
If the same display parameters are used for all sub-pixels, then the control is simple, but the display performance varies due to manufacturing differences
Solution Approach 1:
The patent changes the compensation parameter (compensation value) based on the sub-pixel type and screen load conditions. By dynamically adjusting the compensation parameter according to the specific sub-pixel category and operating conditions, the system achieves consistent display performance while maintaining relatively simple control through predefined parameter sets.
Data Source
AI summary
The present application provides a pixel compensation method, a device and a storage medium, which relates to the technical field of display, including: determining a sub-pixel ratio of a target sub-pixel in a corresponding target pixel, and determining an average load value of an entire screen; determining a compensation value mapping relationship applicable to the target sub-pixel according to a preset ratio interval of the sub-pixel ratio; determining a sub-pixel parameter of the target sub-pixel and a target compensation value corresponding to the average load value according to the compensation value mapping relationship; and performing a compensation operation for the target sub-pixel based on the target compensation value.