Touch Antistatic Line Overlap for Sealing Curing
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Solution Overview
Problem
Display devices with touch panels face challenges in arranging touch signal lines without interfering with the curing of the sealing member between the support and encapsulation substrates, which can affect the reliability and functionality of the touch input system.
Innovation Solution
The arrangement of touch signal lines is optimized by placing the touch antistatic lines outside the touch signal lines and allowing them to overlap the sealing member, utilizing a transparent conductive layer for the touch antistatic lines to ensure proper curing and reduce interference, while maintaining the spacing between touch lines to prevent mutual influence and enhance reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If touch signal lines are arranged close to the sealing member to maximize touch area, then the touch area is enlarged, but the curing of the sealing member is interfered with
Solution Approach 1:
The touch member is segmented into multiple conductive layers: a first touch conductive layer containing touch signal lines, a first touch insulating layer, and a second touch conductive layer containing touch antistatic lines. This segmentation allows the touch antistatic line to be positioned outside the touch signal line while maintaining touch functionality, thereby enlarging the touch area without interfering with the sealing member curing process.
Solution Approach 2:
The patent utilizes a multi-layer vertical structure to resolve the spatial conflict. By arranging touch signal lines and touch antistatic lines in different layers (first touch conductive layer and second touch conductive layer separated by first touch insulating layer), the design enables the touch antistatic line to extend outward past the sealing member boundary without causing interference, thus maximizing touch area while ensuring proper sealing member curing.
2Illumination intensity
If transparent conductive layer is used for touch antistatic line overlapping sealing member, then light transmittance is improved, but curing interference may occur
Solution Approach 1:
The patent applies different material properties to different regions: the touch antistatic line uses a transparent conductive layer where it overlaps the sealing member to ensure high light transmittance for display quality, while the overall multi-layer touch member structure maintains electrical functionality. The transparent conductive material allows UV light to pass through to the sealing member for proper curing, thus achieving both high light transmittance and reliable sealing member curing.
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 secures an area for touch signal lines without interfering with the sealing member's curing, enlarges the touch area, and increases the reliability of the touch input system by suppressing electrical influence and static electricity, allowing for efficient light transmission and effective sealing.
Implementation Method 1
the touch antistatic line has light transmittance higher than light transmittance of the touch signal line
Data Source
AI summary
A display is provided. A display panel including a first substrate, a second substrate an active element layer disposed on the first substrate, and a sealing member coupling the first substrate and the second substrate, and a touch member disposed on the display panel and including a touch signal line and a touch antistatic line, wherein the touch antistatic line is disposed outside the touch signal line and at least partially overlaps the sealing member, and the touch antistatic line has light transmittance higher than light transmittance of the touch signal line.