Folding Display GIP Layout for Stress-Resistant Bezel Design
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Solution Overview
Problem
Foldable display apparatuses face reliability issues due to repeated application of compressive and tensile stresses during unfolding and folding, leading to damage and reduced lifespan of elements such as thin film transistors and lines.
Innovation Solution
The display apparatus includes GIP blocks with varying sizes and structures in folding and flat areas, where the folding area GIP blocks have larger dimensions and specific transistor arrangements to enhance resistance to stress, while maintaining the same bezel size by relocating elements in unused space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the GIP block area is increased in the folding area to improve stress resistance, then the reliability is improved, but the bezel area increases
Solution Approach 1:
The patent applies different GIP block sizes to different locations: larger GIP blocks are placed in the folding area where stress resistance is critical, while smaller GIP blocks are used in the flat area. This local differentiation allows the folding area to have enhanced reliability without requiring the entire bezel area to be enlarged.
Solution Approach 2:
The patent introduces asymmetric GIP block dimensions specifically in the folding area, where the GIP block extends further in the folding direction compared to the flat area. This asymmetric design provides targeted stress resistance in the high-stress folding region while maintaining a compact overall bezel structure.
2Strength
If the GIP block area is increased to enhance stress resistance, then the resistance to compressive and tensile stress is improved, but the device size increases
Solution Approach 1:
The patent strengthens only the specific regions that require stress resistance (folding area with larger GIP blocks) while keeping other regions (flat area) compact. This localized strengthening approach improves overall stress resistance without proportionally increasing the entire device size.
Solution Approach 2:
The patent optimizes GIP block dimensions by extending them primarily in the folding direction (one dimension) rather than uniformly increasing area. This dimensional strategy provides enhanced stress resistance along the critical folding axis while minimizing the overall area increase.
Data Source
AI summary
A display apparatus includes a display panel including a display area and a non-display area, the display panel having a first direction in a long side direction and a second direction in a short side direction, a flat area and a folding area of the non-display area disposed at left and right sides of the display area, and a plurality of first GIP (Gate In Panel) blocks and second GIP blocks disposed in the flat area and the folding area, wherein the size of the second GIP block is larger than that of the first GIP block.