Foldable OLED Display Bending Portion Stress Distribution
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Solution Overview
Problem
Conventional foldable OLED display components face challenges in balancing screen size and portability due to low bending resistance and defective wiring caused by deformation, leading to poor product quality.
Innovation Solution
A bezel-less and foldable OLED display component design featuring a flexible display panel with a bending portion connected to two display portions, where the bending portion is designed to protrude away from glass substrates and includes a driving chip for improved electrical connectivity and stress distribution, enhancing bending resistance and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the screen size is increased to meet market demand for larger displays, then the display area is improved, but the portability deteriorates due to increased device size and weight
Solution Approach 1:
The display component is divided into multiple segments including first and second display portions connected by a bending portion. This segmentation allows the display to be folded into a compact form for portability while maintaining a large total display area when unfolded, effectively resolving the contradiction between screen size and portability
Solution Approach 2:
The bending portion is designed to be dynamically foldable, allowing the display to transition between unfolded (large display area) and folded (compact portability) states. This dynamic capability enables the display to adapt between the two opposing requirements of size and portability based on usage needs
2Ease of operation
If the display panel is made flexible to enable folding, then the portability is improved, but the bending resistance deteriorates leading to defective wiring and poor product quality
Solution Approach 1:
The bending portion is specifically designed with different structural characteristics than the rigid display portions. It features a specialized construction that allows controlled bending while protecting the wiring and electrodes in this critical region, thereby maintaining reliability in the flexible area without compromising portability
Solution Approach 2:
The bending portion includes protective structures that are designed in advance to cushion and distribute bending stresses before they can reach the wiring and electrodes. This preventive design protects against defective wiring caused by deformation, maintaining bending resistance while enabling flexibility for portability
Data Source
AI summary
A display component is provided. The display component has a flexible display panel, a first glass substrate, and a second glass substrate. The flexible display panel includes a first display portion, a second display portion, and a bending portion. The bending portion connects the first display portion and the second display portion. The first glass substrate covers a first light emitting surface of the first display portion, and the second glass substrate covers a second light emitting surface of the second display portion.