Display Panel Compensation Using Adjacent Normal Sub-Pixel Data
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Solution Overview
Problem
Existing display technologies fail to effectively compensate for abnormal sub-pixel units, leading to non-uniform display luminance due to issues like short-circuiting between pixel drive circuits and detection lines, which results in abnormal electrical compensation parameters.
Innovation Solution
A method and apparatus that replace detection data of abnormal sub-pixel units with data from adjacent normal sub-pixel units or an average of nearby normal sub-pixel units, followed by electrical and optical compensation to adjust data voltages, using pre-stored position information of abnormal units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If external compensation technology is used to compensate pixel drive circuits, then display uniformity is improved, but abnormal sub-pixel units still exhibit abnormal luminance due to short-circuiting between pixel drive circuits and detection lines
Solution Approach 1:
The patent extracts and removes abnormal detection data corresponding to short-circuited sub-pixel units from the detection data set. By identifying and eliminating these abnormal data points through comparison with adjacent normal sub-pixel units, the compensation calculation is performed only on valid data, preventing the propagation of errors from short-circuited units to the overall display uniformity.
Solution Approach 2:
The patent introduces adjacent normal sub-pixel units as intermediaries to verify and replace abnormal detection data. When a sub-pixel unit is identified as abnormal (short-circuited), its detection data is replaced with data from adjacent normal sub-pixel units, serving as a mediator to restore data integrity and enable proper compensation calculation.
2Productivity
If detection data of abnormal sub-pixel units is used for compensation, then compensation calculation can be performed, but the compensation parameters become abnormal leading to poor display quality
Solution Approach 1:
The patent performs preliminary verification of detection data by comparing each sub-pixel unit's detection data with adjacent sub-pixel units before conducting compensation calculation. This preliminary action identifies abnormal data points in advance, allowing replacement with valid data from adjacent units, ensuring that only normal detection data is used in the subsequent compensation calculation process.
Solution Approach 2:
The patent implements a feedback mechanism where detection data from adjacent sub-pixel units is used to verify and correct abnormal data. The compensation calculation system receives feedback about data abnormality and automatically replaces problematic data with corrected values from adjacent units, creating a closed-loop system that ensures data quality.
Data Source
AI summary
A method for compensating a display panel includes: acquiring a first detection data set, the first detection data set including first detection data of the plurality of sub-pixel units; acquiring pre-stored position information of abnormal sub-pixel units, the position information being used to indicate positions of sub-pixel units whose display are abnormal; replacing first detection data of a first abnormal sub-pixel unit in the first detection data set based on first detection data of a target sub-pixel unit, so as to acquire a second detection data set, the target sub-pixel unit being at least one normal sub-pixel unit adjacent to the first abnormal sub-pixel unit among the plurality of sub-pixel units, and the first abnormal sub-pixel unit being any of the sub-pixel units indicated by the position information; and compensating data voltages of the plurality of sub-pixel units according to the second detection data set.