Tiled Display Light Reflection Reduction Structure
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Solution Overview
Problem
Existing tiled display devices face challenges in reducing light reflection at the connection points of display panels, which affects image quality due to increased resolution demands and limited space, leading to issues with ambient light interference.
Innovation Solution
A tiled display device with a main supporting substrate featuring a light reflection reduction structure that overlaps with the gap between display substrates, utilizing an optical structure with inclined surfaces and recessed designs to minimize reflected light, thereby reducing image quality interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the pitch between light-emitting diodes decreases to increase resolution, then the display resolution is improved, but the available space at the connection position is reduced
Solution Approach 1:
The patent introduces a light reflection reduction structure that extends in the vertical dimension (thickness direction) from the main supporting substrate. This vertical extension allows the structure to overlap with the gap between display substrates in the top-view direction while providing light reflection reduction functionality, effectively utilizing the third dimension to resolve the space constraint issue caused by decreased LED pitch.
2Area of stationary object
If display panels are tiled together to form large display devices, then the display area is increased, but light reflection at connection points increases causing image quality degradation
Solution Approach 1:
The light reflection reduction structure is specifically positioned at the gap between display substrates where light reflection problems occur. The structure has different optical properties (light reflection reduction) compared to the surrounding areas, creating local quality variation that targets the specific problem area without affecting the overall display performance.
Solution Approach 2:
The light reflection reduction structure acts as an intermediary element between the two display substrates at their connection gap. It mediates the interaction of light with the gap structure, reducing harmful reflections while maintaining the tiled configuration. The structure includes inclined surfaces that redirect reflected light away from the viewer's direction.
3Object-affected harmful factors
If a light reflection reduction structure is added to reduce ambient light interference, then image quality is improved, but device complexity increases
Solution Approach 1:
The light reflection reduction structure is merged with the main supporting substrate, forming an integrated component rather than a separate addition. The structure can be formed as part of the substrate manufacturing process, combining multiple functions (structural support and light reflection reduction) into a single element, thereby minimizing the increase in device complexity.
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 optical structure effectively reduces ambient light reflection, minimizing the occurrence of bright lines and enhancing image quality by controlling light intensity and path within the display device.
Implementation Method 1
the main supporting substrate includes a light reflection reduction structure. In a top-view direction of the tiled display device, the light reflection reduction structure is overlapped with the gap between the first display substrate and the second display substrate
Data Source
AI summary
A tiled display device is provided. The tiled display device includes a main supporting substrate, a first display substrate and a second display substrate. The first display substrate is disposed on the main supporting substrate. The second display substrate is disposed on the main supporting substrate and adjacent to the first display substrate. In addition, the main supporting substrate includes a light reflection reduction structure. In a top-view direction of the tiled display device, the light reflection reduction structure is overlapped with the gap between the first display substrate and the second display substrate.