Display Panel With Through-Substrate Connector for Slim Bezel Design
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Solution Overview
Problem
Display panels face challenges in achieving an extremely slim or bezel-less design due to the limitations imposed by peripheral circuits and driving electronic elements, which increase resistance and capacitance as the panel size enlarges, affecting circuit transmission quality.
Innovation Solution
A display panel design where a conductive connector penetrates through the substrate, allowing the driving circuit element to be disposed on one surface and the active element on the other, with electrical connections made through the connector, reducing the space occupied by the driving circuit element and achieving a slim or bezel-less bezel by dispersing the circuit layout across both surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the line width or line pitch of the peripheral circuit is reduced to achieve slim bezel design, then the bezel width is reduced, but the resistance and capacitance load increases when panel size is enlarged, degrading circuit transmission quality
Solution Approach 1:
The patent moves the driving circuit element from the same plane as the active element to the opposite surface of the substrate, utilizing the third dimension (depth/thickness) to resolve the spatial conflict. This allows the peripheral circuit to be positioned outside the traditional bezel area on the front surface, enabling slim bezel design without compromising circuit transmission quality through the conductive connector arrangement
2Device complexity
If the driving circuit element is positioned on the same surface as the active element, then the circuit layout is simplified, but the bezel width increases due to space requirements for the driving circuit element
Solution Approach 1:
The patent positions the driving circuit element on the opposite surface of the substrate relative to the active element, using the vertical dimension to separate the two components. This spatial arrangement reduces the horizontal space required for the bezel while maintaining circuit functionality through the conductive connector that penetrates the substrate
Solution Approach 2:
The conductive connector acts as an intermediary element that bridges the gap between the active element on one surface and the driving circuit element on the opposite surface. This mediator enables electrical connection while allowing the driving circuit element to be positioned outside the traditional bezel area, thus reducing bezel width without increasing circuit layout complexity
Data Source
AI summary
A display panel and a manufacturing method thereof are provided. The display panel includes a substrate, an active element, a driving circuit element, a first connection circuit, a second connection circuit and a conductive connector. The substrate has a first surface and a second surface opposite to the first surface. The active element is disposed on the first surface. The driving circuit element is disposed on the second surface and is overlapped with the active element. The first connection circuit is disposed on the first surface and is connected to the active element. The second connection circuit is disposed on the second surface and is connected to the driving circuit element. The conductive connector penetrates through the substrate and two ends of the conductive connector are electrically connected to the first connection circuit and the second connection circuit, respectively.