Splicing Display Gamut Matching for Color-Consistent Large Screens
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Solution Overview
Problem
Large-sized splicing display devices exhibit color perception differences between different splicing screens due to differing chromaticity and luminescence spectrums of liquid crystal and inorganic light emitting diode displays.
Innovation Solution
The splicing display device incorporates a liquid crystal display screen with a first gamut triangle and an inorganic light emitting diode display screen with a second gamut triangle, where the second gamut boundary surrounds the first, and the NTSC color gamut difference is less than 30%, ensuring similar gamuts and luminescence spectrums for both screens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If liquid crystal display screens and inorganic light emitting diode display screens are spliced to form large-sized display devices, then display area is increased, but color perception difference occurs between different splicing screens
Solution Approach 1:
The patent adjusts the color gamut parameters of the inorganic light emitting diode display screen by controlling the emission spectrum to match the liquid crystal display screen's color characteristics. Specifically, the inorganic light emitting diode screen's color point coordinate is positioned within the first gamut triangle defined by the liquid crystal display screen, ensuring color consistency across spliced displays while maintaining large display area
Solution Approach 2:
The patent applies different display technologies (liquid crystal and inorganic light emitting diode) to different regions of the large-sized display device, with each region's color characteristics optimized locally. The inorganic light emitting diode screens are specifically designed with color points within the liquid crystal display screen's gamut triangle to ensure seamless color transition at splicing boundaries
2Area of stationary object
If inorganic light emitting diode display screens are used to achieve large-sized splicing, then display area is increased, but cost increases due to higher manufacturing complexity
Solution Approach 1:
The patent divides the large-sized display device into multiple modular screens that can be independently manufactured and then spliced together. This segmentation allows for standardized production of individual modules (liquid crystal or inorganic light emitting diode) while achieving large display area through assembly, reducing overall manufacturing complexity
Solution Approach 2:
The patent creates a universal splicing display system where both liquid crystal display screens and inorganic light emitting diode display screens can be used together in the same device. The color gamut matching design enables flexible configuration of different screen types while maintaining consistent color output, providing manufacturing flexibility and cost optimization
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration reduces color perception differences by aligning the gamuts and spectrums of the liquid crystal and inorganic light emitting diode displays, improving the overall display effect and reducing costs by using fewer inorganic light emitting diode screens.
Implementation Method 1
a liquid crystal display screen, a color point coordinate of a color of a light emitted by the liquid crystal display screen in the CIE 1931 XYZ chromaticity diagram is in a first gamut triangle
Implementation Method 2
an inorganic light emitting diode display screen, a color point coordinate of a color of a light emitted by the inorganic light emitting diode display screen in the CIE 1931 XYZ chromaticity diagram is in a second gamut triangle
Data Source
AI summary
The present application provides a splicing display device includes a liquid crystal display screen and an inorganic light emitting diode display screen. A color point coordinate of a color of a light emitted by the liquid crystal display screen in the CIE 1931 XYZ chromaticity diagram is in a first gamut triangle. A color point coordinate of a color of a light emitted by the inorganic light emitting diode display screen in the CIE 1931 XYZ chromaticity diagram is in a second gamut triangle. A gamut boundary of the second gamut triangle surrounds a gamut boundary of the first gamut triangle, and a difference between a NTSC color gamut corresponding to the second gamut triangle and a NTSC color gamut corresponding to the first gamut triangle is less than 30%.