Bezelless Display Modules With Edge Side Wiring
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Solution Overview
Problem
Current large format display apparatuses face challenges in achieving seamlessness and maximizing active display area due to bezel areas, which limit the integration of bezelless display modules and affect display quality.
Innovation Solution
The implementation of a large format display apparatus with side wiring on each display module, where edges without side wiring contact each other, maintaining a consistent pitch between adjacent modules, and using a flexible printed circuit to electrically couple the TFT substrate with a rear substrate, allowing for bezelless integration and improved display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If bezel area is reduced or eliminated to maximize active display area, then active display area increases, but visible seams appear between adjacent display modules
Solution Approach 1:
The side wiring is extracted from the edge regions of display modules that would be visible at boundaries. By positioning side wiring only on non-boundary edges or using separate substrate surfaces for wiring, the harmful visible seams are eliminated while maintaining full active display area on the front surface.
Solution Approach 2:
The side wiring is moved from the two-dimensional front display surface to the three-dimensional edge regions or back surface of the substrate. This dimensional relocation allows the wiring to be hidden from the viewer's perspective while still functioning electrically, thus eliminating visible seams.
2Reliability
If side wiring is positioned on edge regions of display modules, then electrical coupling is achieved, but visible seams and reduced active display area occur
Solution Approach 1:
Side wiring is relocated from the front two-dimensional display surface to the edge regions or back surface (three-dimensional space). This allows electrical coupling to be maintained while the wiring becomes invisible, preserving the full active display area on the front surface.
Solution Approach 2:
The side wiring is extracted from the visible front surface and positioned on separate substrate surfaces or edge regions. This separation maintains electrical functionality while removing the harmful visual impact on the active display area.
3Area of stationary object
If multiple display modules are coupled to form large format display, then display size increases, but visible seams between modules appear
Solution Approach 1:
Side wiring is extracted from the boundary edges where display modules meet. By positioning wiring on non-boundary edges or using separate substrate surfaces, the wiring that would create visible seams at module boundaries is eliminated, achieving seamless large format displays.
Solution Approach 2:
The side wiring is moved from the front two-dimensional surface to edge regions or back surfaces (three-dimensional space). This dimensional change allows multiple modules to be coupled without visible seams at their boundaries, as the wiring is hidden from the viewer's perspective.
Data Source
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AI summary
A display module and a large format display apparatus incorporating the display module are provided. The display module includes a thin film transistor substrate, light emitting diodes arranged on one surface of the thin film transistor substrate, and side wirings formed on each of a first edge of the thin film transistor substrate and a second edge of the thin film transistor substrate that is adjacent to the first edge, to electrically couple components on the one surface of the thin film transistor substrate with components on an opposite surface of the one surface respectively.