Luminance Compensation Data Acquisition for Display Panels
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Solution Overview
Problem
Current methods for luminance compensation in display panels are inefficient and lack optimal matching, as they typically require multiple grayscale images to compensate all panels in the same manner, leading to time-consuming and low-efficiency processes.
Innovation Solution
A method and apparatus that collect images of first and second grayscale values, calculate luminance differences, determine a target luminance difference, and select a preset compensation data calculation scheme based on these differences to acquire luminance compensation data, allowing for optimal selection of compensation schemes for individual display panels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple grayscale images are used to acquire luminance compensation data for all display panels in the same manner, then comprehensive compensation can be achieved, but the process becomes time consuming and efficiency is low
Solution Approach 1:
The patent changes the parameter of grayscale value selection by determining a target luminance difference based on luminance differences at first and second grayscale values, then selecting a third grayscale value that meets preset conditions. This dynamic parameter adjustment enables efficient acquisition of compensation data while maintaining effectiveness.
Solution Approach 2:
The patent applies local quality by determining different target luminance differences and selecting different third grayscale values based on the specific luminance characteristics of each display panel. This allows each panel to receive customized compensation treatment rather than uniform treatment, improving both efficiency and effectiveness.
2Measurement precision
If multiple grayscale images are collected to determine luminance compensation data, then accurate compensation can be achieved, but the calculation scheme becomes complex
Solution Approach 1:
The patent extracts only the necessary third grayscale value that meets preset conditions based on the target luminance difference, rather than processing all possible grayscale values. This extraction approach maintains measurement accuracy while significantly simplifying the calculation scheme.
Solution Approach 2:
The patent uses partial action by selecting only the specific third grayscale value needed for compensation based on luminance difference analysis, rather than comprehensively processing all grayscale levels. This partial approach achieves sufficient accuracy with reduced complexity.
Data Source
AI summary
A method for acquiring luminance compensation data, which includes: collecting an image of a first grayscale value and an image of a second grayscale value displayed by a display panel to be compensated; calculating a luminance difference between the image of the first grayscale value and image of the second grayscale value for each display unit of the display panel; determining a target luminance difference based on the luminance difference between the image of the first grayscale value and the image of the second grayscale value for each display unit; determining a preset compensation data calculation scheme corresponding to the display panel and acquiring images of grayscale values required by the preset compensation data calculation scheme, based on a preset condition that the target luminance difference meets; and determining the luminance compensation data for the display panel, based on the determined images of grayscale values.