Tiled Display Barrier Layer Layout for Seamless Panel Boundaries
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Solution Overview
Problem
Tiled display devices face challenges in creating a seamless image experience due to visible boundaries between connected display units, which reduces immersion and productivity, especially as the number of pixels increases in larger displays.
Innovation Solution
A tiled display device design featuring a barrier layer made of inorganic material, connection lines, and thin-film transistors with specific layer configurations to minimize the visibility of seams between units, using polyimide substrates and wavelength conversion layers to enhance color accuracy and reduce bezel areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple display devices are connected to form a tiled display, then the display area is increased, but boundary parts and non-display areas become visible reducing immersion
Solution Approach 1:
The patent applies color matching techniques where the non-display area of one display device is configured to have the same color as the display area of the adjacent display device. This color uniformity makes the boundary parts invisible, eliminating the sense of separation and improving image immersion while maintaining the expanded display area.
Solution Approach 2:
The patent creates visual homogeneity by ensuring that the non-display area of one display device matches the display area characteristics of its neighbor. This homogenization of visual properties across device boundaries makes the tiled configuration appear as a single seamless display, resolving the contradiction between expanded area and boundary visibility.
2Measurement precision
If the number of pixels is increased to improve image quality, then display resolution is improved, but defect rate of light emitting elements increases
Solution Approach 1:
The patent divides the large display into multiple smaller display devices connected in a tiled configuration. Each individual display device contains fewer pixels compared to a single large display, which reduces the defect rate of light emitting elements in each unit while collectively providing high display resolution across the entire tiled arrangement.
Solution Approach 2:
The patent changes the structural parameter from a single large display to multiple smaller displays, effectively distributing the pixel count across separate units. This parameter change reduces the probability of defects in each unit while maintaining the overall high resolution through the combined display area.
3Object-affected harmful factors
If boundary parts are minimized to improve immersion, then image quality is improved, but manufacturing complexity increases
Solution Approach 1:
The patent uses color matching as a relatively simple manufacturing approach to minimize the visual impact of boundary parts. By configuring the non-display area color to match the adjacent display area, the solution achieves reduced sense of separation without requiring complex structural modifications, thus balancing manufacturing feasibility with improved image immersion.
Data Source
AI summary
Provided is a display device. The display device comprises a first substrate, wherein a first contact hole is defined in the first substrate, a barrier layer on the first substrate, wherein a second contact hole is defined in the barrier layer and connected to the first contact hole, a first connection line on the barrier layer and inserted into the second contact hole, a second substrate covering the first connection line and the barrier layer, and a thin-film transistor layer on the second substrate and including at least one thin-film transistor. The thin-film transistor layer further includes a second connection line connected between the first connection line and the at least one thin-film transistor.