Hybrid Display With Diffusion-Matched Peripheral Sub-Pixels
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Solution Overview
Problem
Existing display technologies struggle to effectively reduce border size in spliced displays, leading to noticeable seams and compromised viewing experience.
Innovation Solution
A display device design where the peripheral display area includes self-luminous sub-pixels with encapsulation and diffusion layers, matching the projected area and light field of liquid crystal sub-pixels, creating a seamless and consistent display image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the border area is reduced to improve display area ratio, then the display area ratio is improved, but the splicing area becomes noticeable and viewing experience deteriorates
Solution Approach 1:
The patent applies different display technologies to different regions: liquid crystal display for the main display area and self-luminous display for the peripheral area. This local differentiation allows each region to have optimized characteristics, with the self-luminous peripheral area providing uniform light distribution that masks splicing seams while maintaining high display area ratio.
Solution Approach 2:
The patent combines two different display technologies (liquid crystal and self-luminous) into a single hybrid display system. The composite structure integrates the advantages of both technologies: liquid crystal provides mature display performance for the main area, while self-luminous technology provides uniform light emission for the peripheral area, achieving both high display area ratio and good viewing experience.
2Length of stationary object
If the peripheral display area uses different technology to reduce border size, then the border size is reduced, but light field consistency between liquid crystal and peripheral areas deteriorates
Solution Approach 1:
The patent carefully controls the parameters of the self-luminous peripheral display, including the projected area of the diffusion layer being substantially equal to the projected area of the liquid crystal sub-pixel. This parameter matching ensures that the light field distribution, brightness, and viewing angles are consistent between the liquid crystal display area and the self-luminous peripheral area, making the transition imperceptible to users.
3Stability of the object's composition
If the projected area of diffusion layer is increased to match liquid crystal sub-pixel area, then light field consistency is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent divides the display into distinct functional segments: liquid crystal sub-pixels for the main display area and self-luminous elements with encapsulation and diffusion layers for the peripheral area. This segmentation allows independent optimization and manufacturing of each region, with the diffusion layer's projected area being designed to substantially match the liquid crystal sub-pixel area, achieving light field consistency while managing manufacturing complexity through modular design.
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
The design achieves a theoretically borderless display with uniform light distribution, enhancing the viewing experience by making it difficult to distinguish between liquid crystal and peripheral display areas, thus improving display quality.
Implementation Method 1
The second sub-pixel includes a light-emitting element, an encapsulation layer, and a diffusion layer
Implementation Method 2
The encapsulation layer surrounds and contacts the light-emitting element
Implementation Method 3
the diffusion layer surrounds and contacts the encapsulation layer. A projected area of the diffusion layer on the substrate is substantially equal to a projected area of the first sub-pixel on the substrate
Data Source
AI summary
A display device includes a display unit. The display unit includes a substrate with a liquid crystal display area and a peripheral display area surrounding the liquid crystal display area, where the liquid crystal display area includes a plurality of first sub-pixels and the peripheral display area includes a plurality of second sub-pixels. The second sub-pixel includes a light-emitting element, an encapsulation layer, and a diffusion layer. The encapsulation layer surrounds and contacts the light-emitting element, and the diffusion layer surrounds and contacts the encapsulation layer. A projected area of the diffusion layer on the substrate is substantially equal to a projected area of the first sub-pixel on the substrate.