Foldable Display Reinforcing Member with Incision Pattern
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Solution Overview
Problem
Foldable display apparatuses face durability issues due to deformation in the folding region, which can be recognized as defects and affect display quality when stress is applied during folding and unfolding.
Innovation Solution
A display apparatus design incorporating a display module with defined folding, non-folding regions, supported by first and second supporting portions, and reinforced by a reinforcing member with an incision pattern that overlaps the folding axis, reducing shear stress and maintaining display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display module is made foldable to improve portability, then the flexibility and portability are improved, but the durability and display quality deteriorate due to deformation in the folding region
Solution Approach 1:
The display module is divided into a folding region and non-folding regions. The reinforcing member is further segmented with incision patterns that create multiple sub-regions, allowing differential support and stress distribution across the display module during folding operations.
Solution Approach 2:
The reinforcing member provides localized support to the folding region through its incision pattern, which creates areas of high and low rigidity. This local quality enhancement prevents deformation in the folding region while maintaining overall flexibility of the display module.
2Reliability
If the folding region is made more rigid to prevent deformation, then the durability is improved, but the flexibility and ease of folding deteriorate
Solution Approach 1:
The reinforcing member with its incision pattern creates localized rigid support exactly where needed in the folding region, while the rest of the display module maintains its flexibility. The incisions allow the reinforcing member to provide support without creating a continuous rigid structure that would hinder folding.
Solution Approach 2:
The reinforcing member combines rigid material with incision patterns that create flexible regions. This composite structure allows the folding region to maintain sufficient rigidity to prevent deformation while still allowing the display module to be folded and unfolded easily.
3Reliability
If a reinforcing member is added to the folding region to prevent deformation, then the durability is improved, but the device complexity increases
Solution Approach 1:
The reinforcing member is designed with incision patterns that segment it into multiple regions. This segmentation allows the reinforcing member to be integrated with the display module structure, providing support while minimizing additional complexity through a patterned rather than solid design.
Solution Approach 2:
The reinforcing member is applied locally to the folding region rather than the entire display module. This localized application reduces the overall amount of material and structural complexity added to the device while still providing the necessary durability enhancement.
Data Source
AI summary
A display apparatus includes a display module, a first supporting portion, a second supporting portion, and a reinforcing member. A folding region, a first non-folding region and a second non-folding region are defined in the display module, when viewed in a plan view. The display module displays an image. The folding region is foldable about an imaginary folding axis, and the first and second non-folding regions are adjacent to two opposite sides, respectively, of the folding region, respectively. The first supporting portion supports the first non-folding region. The second supporting portion supports the second non-folding region and is spaced apart from the first supporting portion. The reinforcing member is adhered to the first and second supporting portions. The reinforcing member includes an incision pattern, which overlaps the folding axis in the folding region.