Active Device Array Substrate With Through Hole Sealant
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Solution Overview
Problem
The challenge is to design an active device array substrate that allows for a slim border and high-performance display panels, particularly for wearable devices, while accommodating structural requirements without impairing the display panel's performance, such as through holes for mechanical hands in watch dials.
Innovation Solution
The active device array substrate features a substrate with a through hole, where first and second signal lines interlace, pixel units are electrically connected, and a sealant fills the hole to seal the substrate's sidewall, enabling a slim border and reduced wiring area, and the display panel incorporates a curable sealant to maintain performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of conductive wires is increased to achieve higher resolution, then the display resolution is improved, but the border width increases due to more wiring space requirements
Solution Approach 1:
The patent transitions from planar wiring arrangement to three-dimensional wiring by stacking conductive wires in multiple layers. The first and second conductive wires are disposed in different layers, allowing signals to be transmitted through vertical stacking rather than horizontal spreading, thus reducing border width while maintaining high resolution
Solution Approach 2:
The patent implements nested wiring structures where conductive wires in different layers are positioned to interlace and pass through each other's spaces. The first conductive wire in the first layer and the second conductive wire in the second layer are arranged to nest within the same vertical column, maximizing space utilization and minimizing border requirements
2Adaptability or versatility
If a through hole is formed in the center of the display panel for wearable device integration, then the adaptability to wearable devices is improved, but the structural integrity and display performance are impaired
Solution Approach 1:
The patent extracts the conflicting element (through hole) from the active display area and relocates it to the border area. The through hole is specifically positioned in the border region away from the active display area, allowing wearable device integration while preserving the integrity and performance of the display panel
Solution Approach 2:
The patent applies different structural characteristics to different regions of the display panel. The active display area maintains continuous, intact structure for optimal display performance, while the border area incorporates the through hole for wearable device integration, allowing each region to have optimized properties for its specific function
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
This configuration allows for a slim border and improved display quality by reducing the area required for wiring and ensuring the sealant does not impair the substrate's performance, enabling the integration of display panels into wearable devices with structural integrity.
Implementation Method 1
The sealant fills the through hole, so as to seal a sidewall of the substrate exposed by the through hole
Data Source
AI summary
A display panel includes a display panel body, a first protective film, a second protective film, and a sealant. The display panel body has a first surface, a second surface opposite to the first surface, and a first through hole that passes through the display panel body and connects the first surface and the second surface. The first protective film is arranged on the first surface and has a second through hole connected to the first through hole. The second protective film is arranged on the second surface. The sealant fills the first through hole, so that a sidewall of the display panel body which is exposed by the first through hole is sealed, and a material of the sealant is a curable material.