Spliced Screen Brightness Compensation via Bilinear Interpolation
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Solution Overview
Problem
Spliced screens face challenges in achieving a better display effect due to inconsistent brightness gains across sub-display screens, leading to noticeable splicing boundaries and reduced display quality.
Innovation Solution
A method for compensating display by obtaining theoretical brightness gains for sub-display regions, calculating actual brightness gains using bilinear interpolation, and adjusting the picture to ensure the central region's brightness is greater than or equal to the non-central region's, thereby smoothing transitions and improving display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If brightness gain compensation is applied uniformly across all sub-display screens, then power consumption is reduced, but display quality deteriorates due to noticeable splicing boundaries and non-uniform brightness distribution
Solution Approach 1:
The patent applies different brightness gain compensation strategies to different regions of the spliced screen. The central region uses one compensation approach while the non-central region uses another, creating locally optimized quality throughout the display area rather than a uniform approach. This resolves the contradiction by allowing power-efficient compensation in non-critical areas while maintaining high display quality in the central viewing area.
Solution Approach 2:
The patent segments the spliced screen display area into a central region and a non-central region, applying different brightness gain compensation methods to each segment. This segmentation allows the system to optimize power consumption in the non-central region while preserving display quality in the central region, thereby resolving the contradiction between energy efficiency and display quality.
2Manufacturing precision
If brightness gain is increased to improve display quality, then display effect improves, but power consumption increases
Solution Approach 1:
The patent applies enhanced brightness gain compensation only where necessary (central region) while using more power-efficient compensation in non-critical areas (non-central region). This local differentiation allows the system to improve display quality in the most important viewing area without proportionally increasing power consumption across the entire screen.
3Loss of energy
If simple brightness compensation is applied, then power consumption is reduced, but splicing boundaries become noticeable and display uniformity deteriorates
Solution Approach 1:
The patent applies different compensation strategies to different regions: the central region receives compensation that prioritizes uniformity and minimizes splicing boundaries, while the non-central region uses a more power-efficient approach. This local differentiation maintains display uniformity in the critical central area without sacrificing overall power efficiency.
Solution Approach 2:
By segmenting the display into central and non-central regions with different compensation characteristics, the patent achieves overall display uniformity in the most important viewing area while maintaining power efficiency in peripheral areas, resolving the contradiction between power consumption and display uniformity.
4Stability of the object's composition
If complex brightness compensation algorithms are used, then display uniformity improves, but computational complexity and processing time increase
Solution Approach 1:
The patent applies computationally intensive brightness compensation algorithms only in the central region where display uniformity is most critical, while using simpler algorithms in the non-central region. This local differentiation achieves high display uniformity in the most important viewing area without proportionally increasing overall computational complexity.
Solution Approach 2:
By segmenting the compensation computation into central and non-central regions with different algorithmic complexity, the patent achieves high display uniformity where needed while keeping overall processing requirements manageable, resolving the contradiction between display uniformity and computational complexity.
Data Source
AI summary
A method for compensating display of a spliced screen, including: obtaining a picture to be displayed; obtaining a theoretical brightness gain of at least one sub-display region in a plurality of sub-display regions; obtaining an actual brightness gain of the central region according to the theoretical brightness gain of at least part of the sub-display regions, and obtaining actual brightness gains of a plurality of first nodes in the non-central region according to the theoretical brightness gain of at least part of the sub-display regions; obtaining an actual brightness gain of at least part of the non-central region by using a bilinear interpolation method according to the actual brightness gains of the plurality of first nodes and an actual brightness gain of at least one second node on the central region; and compensating the picture to be displayed based on an actual brightness gain of the picture to be displayed.