Flexible Display Slits and Cover Layer for Impact Resistance
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Solution Overview
Problem
Existing flexible display apparatuses face challenges in maintaining strength while being lightweight and thin, which affects their impact resistance.
Innovation Solution
A display apparatus with a folding area and a non-folding area, featuring a first plate with slits covered by a heat-shrinkable cover layer, enhancing impact resistance by improving tensile strength and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the weight and thickness of the display apparatus are decreased to make it flexible, then the flexibility is improved, but the strength and impact resistance are reduced
Solution Approach 1:
The first plate is designed with a folding pattern consisting of multiple slits that enable the plate to flex and bend. This folding pattern allows the display apparatus to be folded while maintaining structural integrity, resolving the contradiction between flexibility and strength by incorporating flexible design elements into the plate structure
Solution Approach 2:
The first plate is divided into multiple regions by the folding pattern slits, creating a segmented structure that can bend and fold. This segmentation allows the plate to maintain strength while achieving flexibility, as the divided structure can deform without compromising overall structural integrity
2Ease of manufacture
If the width of the slits in the folding pattern is increased to ease manufacturing, then the ease of manufacture is improved, but the impact resistance is reduced
Solution Approach 1:
The patent specifies that the slit width should be 100 μm or less to achieve optimal balance between manufacturing feasibility and impact resistance. This parameter change ensures that the slits are narrow enough to maintain structural strength while still being manufacturable using standard techniques
Solution Approach 2:
The first plate is formed as a composite structure combining the base plate material with the folding pattern featuring narrow slits. This composite design allows the plate to maintain high impact resistance while incorporating the necessary folding characteristics, achieving both manufacturing feasibility and structural strength
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
The solution significantly enhances the impact resistance and tensile strength of the display apparatus, allowing it to withstand external forces without compromising its lightweight and flexible design.
Implementation Method 1
applying heat to the cover layer to shrink the plurality of slits to have a first width that is less than the first preliminary width
Data Source
AI summary
A display apparatus includes: a display panel having a folding area and a non-folding area; a first plate on one surface of the display panel and comprising a first area and a second area, wherein the first area corresponds to the folding area of the display panel, and the second area corresponds to the non-folding area of the display panel; and a cover layer between the first plate and the display panel and in direct contact with at least a portion of the first plate, wherein the first area of the first plate comprises a plurality of slits each having a length in a first direction parallel to a folding axis of the folding area and being at least partially covered by the cover layer, and a width of each of the plurality of slits in a second direction perpendicular to the first direction is 100 micrometers (μm) or less.