Display Device Connecting Member with Segmented Adhesive Properties
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Solution Overview
Problem
Foldable and rollable display devices face challenges in preventing foreign particles from entering through the opening regions of their supporting members, which can affect the display's functionality and aesthetics.
Innovation Solution
A display device design featuring a connecting member with a non-adhesive or low-adhesive portion photopolymerized by ultraviolet rays, combined with an additional supporting layer, to block foreign particles at the opening regions of the supporting member, ensuring the display panel remains clean and functional.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a supporting member with multiple opening regions is used to enable bending, then the ease of operation is improved, but foreign particles can enter through the opening regions affecting reliability
Solution Approach 1:
The supporting member is segmented with multiple opening regions to enable bending, while the connecting member is segmented into first and second portions with different adhesive properties. The first portion overlaps the opening regions and has reduced adhesive property to prevent foreign particle adhesion, while the second portion provides strong adhesion for structural support.
Solution Approach 2:
The connecting member exhibits local quality variation where the first portion overlapping the opening regions has no adhesive property or lower adhesive property, while the second portion overlapping the non-opening regions has high adhesive property. This localized differentiation allows the structure to simultaneously enable bending through opening regions while preventing foreign particle adhesion at those same regions.
2Strength
If a connecting member with adhesive property is used to support the display panel, then the strength is improved, but foreign particles can be adhered at the opening regions
Solution Approach 1:
The connecting member exhibits local quality variation where the first portion overlapping the opening regions has no adhesive property or lower adhesive property, while the second portion overlapping the non-opening regions has high adhesive property. This localized differentiation allows the structure to simultaneously enable bending through opening regions while preventing foreign particle adhesion at those same regions.
Solution Approach 2:
The connecting member is segmented into a first portion and a second portion with different adhesive properties. The first portion overlaps the opening regions and has reduced adhesive property to prevent foreign particle adhesion, while the second portion provides strong adhesion for structural support.
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
Effectively prevents foreign particles from entering the display device through the opening regions, maintaining the panel's integrity and visual quality, while allowing for easy bending and rolling of the display area.
Implementation Method 1
The first portion of the connecting member may be photopolymerized by ultraviolet rays to become a polymer.
Implementation Method 2
The supporting member may block light.
Implementation Method 3
The additional supporting layer may block ultraviolet rays.
Data Source
AI summary
A display device according to an embodiment includes: a display panel including a first region and a bendable second region connected to the first region; a supporting member supporting the display panel and defining a plurality of opening regions therein overlapping the second region; and a connecting member disposed between the display panel and the supporting member and including a first portion overlapping the plurality of opening regions of the supporting member and a second portion overlapping a region of the supporting member except for the plurality of opening regions, where the first portion of the connecting member has no adhesive property or has a lower adhesive property than the second portion.