Curved Display Connection Pattern for Light Leakage Reduction
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Solution Overview
Problem
Curved display apparatuses experience light leakage due to the mismatch in flexibility between the display panel and the circuit board, leading to tearing and damage when the display panel is bent.
Innovation Solution
Incorporating a patterned connection portion between the display and driving portions, which disperses external forces and reduces stress, preventing tearing and light leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display panel is made flexible to enable curvature, then the display apparatus can achieve curved display functionality, but the connection between the display panel and circuit board causes tearing and light leakage
Solution Approach 1:
The connection portion is divided into multiple sub-areas (first sub-area, second sub-area, third sub-area) with different pattern configurations. This segmentation allows each sub-area to handle stress differently, preventing tearing at the connection interface while maintaining overall connection integrity between the flexible display panel and rigid circuit board.
Solution Approach 2:
Different regions of the connection portion are assigned different patterns (first pattern, second pattern, third pattern) based on their specific stress characteristics. The first pattern is used in high-stress areas, while the second and third patterns are used in lower-stress areas, optimizing both flexibility and connection strength locally throughout the connection portion.
2Strength
If a rigid connection structure is used to maintain connection strength, then the connection between display panel and circuit board is strong, but the display panel cannot be bent without causing tearing
Solution Approach 1:
The connection portion is designed with dynamic adaptability through its pattern structure. When the display panel is bent, the patterned connection portion deforms in a controlled manner that distributes mechanical stress, allowing the connection to maintain strength while accommodating the bending motion of the flexible display panel.
Solution Approach 2:
The physical parameters of the connection portion (such as material properties and geometric configuration) are optimized to change under stress. The patterned structure allows the connection portion to exhibit different mechanical properties during bending compared to a rigid structure, maintaining both strength and flexibility.
3Adaptability or versatility
If the connection portion is made flexible to match the display panel, then bending is possible, but the connection strength and structural stability are reduced
Solution Approach 1:
The connection portion utilizes composite material properties by combining the flexible display panel material with a patterned structure that provides rigid-like strength. The patterned design creates a composite effect where the flexible base material is reinforced by the geometric pattern, achieving both flexibility and strength simultaneously.
Data Source
AI summary
A curved display apparatus is disclosed, in which light leakage does not occur or is reduced even though a display panel is bent. The curved display apparatus comprises a display portion having a first curvature and a second curvature that is larger than the first curvature, a driving portion configured to drive the display portion, and a connection portion connecting the driving portion with display portion, wherein the connection portion includes a pattern area between the display portion having the second curvature and the driving portion, the pattern area having a pattern.