Tiled Display Color Coordinate Compensation Circuit
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Solution Overview
Problem
Tiled displays face challenges in minimizing color coordinate differences between display panels due to manufacturing variations, which affect image quality, especially in outdoor environments where high luminance and uniformity are required.
Innovation Solution
An optical compensation method and circuit that convert pure color data into target color coordinates with a smaller color gamut, allowing for representation as a combination of two or more different colors to minimize color coordinate variations among display panels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If pure color data is displayed directly on display panels with different color coordinates, then each panel can display its full color gamut, but color coordinate differences between panels cause image quality degradation and non-uniformity
Solution Approach 1:
The patent converts pure color data into target color coordinates with a smaller color gamut that is common to all display panels. This parameter transformation ensures that color coordinates are standardized across panels with different manufacturing characteristics, resolving the contradiction between maintaining full color gamut coverage and achieving color coordinate uniformity.
Solution Approach 2:
The patent segments pure color data into combinations of two or more different color data. By decomposing pure color signals into multiple color components, the system can compensate for panel-specific color coordinate variations while maintaining overall color accuracy and uniformity across the tiled display.
2Area of stationary object
If display panels are tiled together to form a large screen, then the display area is increased, but color coordinate variations between panels create visible boundaries and image quality differences
Solution Approach 1:
The patent applies color coordinate transformation to convert panel-specific color coordinates into a standardized target color space. This parameter change enables seamless integration of multiple display panels with different manufacturing characteristics, eliminating visible boundaries and ensuring uniform color representation across the entire large-screen display.
3Illumination intensity
If outdoor display is implemented with high luminance requirements, then visibility in sunlight is improved, but color coordinate differences become more pronounced under bright lighting conditions
Solution Approach 1:
The patent implements color coordinate standardization that is independent of luminance levels. By transforming pure color data into target color coordinates that account for panel variations, the system maintains color consistency across panels even under high luminance outdoor conditions, preventing color coordinate differences from becoming more pronounced in sunlight.
Data Source
AI summary
Disclosed are a tiled display and an optical compensation method thereof. The tiled display includes a color coordinate compensation circuit configured to convert color coordinates of pure color data to be displayed in display panels into target color coordinates having a color gamut smaller than a color gamut defined in color coordinates of each of display panels, and convert the pure color data into a data combination of two or more different colors.