Pixel Luminance Compensation via Gray-Level Segmentation
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Solution Overview
Problem
Conventional flat panel displays face limitations in achieving luminance continuity and uniformity across entire gray-level regions due to the inability to effectively compensate pixel luminance across the entire gray-level range, leading to discontinuities between compensated and uncompensated regions.
Innovation Solution
A pixel luminance compensating unit that includes an uncompensated gray-level region processing unit, a compensated gray-level region processing unit, and an interpolated gray-level region processing unit, which generate output data by processing input data based on respective luminance curves, with the interpolated gray-level region's curve generated through interpolation between the uncompensated and compensated gray-level regions, ensuring continuity and uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If pixel luminance compensation is applied across the entire gray-level region, then luminance uniformity is improved, but the complexity of the compensation system increases and discontinuities may occur between compensated and uncompensated regions
Solution Approach 1:
The gray-level region is divided into multiple segments: a first gray-level region (compensated) and a second gray-level region (uncompensated). This segmentation allows different compensation strategies to be applied to different regions, reducing overall system complexity while maintaining luminance uniformity where most needed.
Solution Approach 2:
Pixel luminance compensation is applied selectively to the first gray-level region rather than uniformly across all gray-levels. This local quality approach focuses compensation resources on the region where they are most effective, avoiding the complexities and discontinuities that would arise from full-range compensation.
2Device complexity
If pixel luminance compensation is applied in a partial gray-level region, then system complexity is reduced, but luminance continuity across the entire gray-level region deteriorates
Solution Approach 1:
An intermediate gray-level region is introduced between the compensated first gray-level region and the uncompensated second gray-level region. This intermediate region acts as a mediator that gradually transitions the luminance characteristics, ensuring continuity between the compensated and uncompensated regions while maintaining manageable system complexity.
Solution Approach 2:
The luminance curve in the intermediate gray-level region is dynamically adjusted through interpolation between the luminance curves of the first and second gray-level regions. This dynamic adjustment ensures smooth transitions and maintains luminance continuity without requiring complex fixed compensation across all regions.
3Stability of the object's composition
If an intermediate gray-level region with interpolated luminance curve is introduced, then luminance continuity is improved, but the processing complexity increases
Solution Approach 1:
Instead of applying complex compensation processing across the entire gray-level region, the patent applies interpolated luminance curve processing only to the intermediate gray-level region. This partial action approach achieves the necessary luminance continuity with reduced processing complexity compared to full-range compensation.
Data Source
AI summary
A pixel luminance compensating unit is disclosed. In one aspect, the disclosed pixel luminance compensating unit includes an uncompensated gray-level region processing unit configured to generate first output-data by processing first input-data corresponding to a first portion of an input luminance curve corresponding to an uncompensated gray-level region. The disclosed unit further includes a compensated gray-level region processing unit configured to generate second output-data by processing second input-data corresponding to a second portion of the input luminance curve corresponding to a compensated gray-level region. The disclosed unit further includes an interpolated gray-level region processing unit configured to generate third output-data by processing third input-data corresponding to a third portion of the input luminance curve corresponding to an interpolated gray-level region, wherein the interpolated gray-level region processing unit is configured to generate the third portion by interpolating between the first portion and the second portion.