Display Device PCB Bending Prevention Support
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Solution Overview
Problem
Display devices face durability issues due to bending of display panels and attached components, leading to defects in electrical and mechanical connections, which reduces reliability and performance.
Innovation Solution
A support system is attached to the display panel and printed circuit board, using a flexible member and adhesive members to prevent bending, with a support member made of polyethylene terephthalate (PET) that includes holes for the flexible printed circuit and printed circuit board, ensuring the printed circuit board is securely positioned.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the printed circuit board is attached directly to the display panel, then the device structure is simple, but the printed circuit board bends due to its own weight causing connection defects
Solution Approach 1:
A support member is introduced as an intermediary component between the display panel and the printed circuit board. This support member provides mechanical reinforcement to prevent the printed circuit board from bending under its own weight, while maintaining a relatively simple overall structure. The support member acts as a mediator that resolves the conflict between structural simplicity and connection reliability.
Solution Approach 2:
The support member is configured with a thin, flexible structure that includes holes to accommodate the flexible printed circuit and printed circuit board. This thin film structure provides the necessary mechanical support to prevent bending while remaining lightweight and not significantly increasing device complexity.
2Reliability
If a support member is added to prevent bending, then connection reliability improves, but device complexity increases
Solution Approach 1:
The support member is designed as a thin film structure that provides mechanical support without adding significant bulk or complexity. The thin film nature allows it to be integrated into the existing device architecture with minimal impact on overall structure.
Solution Approach 2:
The support member includes holes formed at specific positions to accommodate the flexible printed circuit and printed circuit board. This porous structure allows the support member to provide reinforcement while maintaining flexibility and allowing passage of electrical connections, thus not significantly increasing device complexity.
3Ease of manufacture
If the support member includes holes for flexible printed circuit, then ease of assembly improves, but manufacturing precision requirements increase
Solution Approach 1:
The support member includes holes formed at specific positions to accommodate the flexible printed circuit and printed circuit board. These holes provide pathways for the electrical connections to pass through while maintaining the structural integrity of the support member.
Solution Approach 2:
The support member with holes acts as an intermediary structure that facilitates the assembly of multiple components. The holes are positioned to align with the flexible printed circuit and printed circuit board, enabling easy assembly while the support member itself provides the necessary mechanical support.
Data Source
AI summary
A display device includes a substantially rigid display panel, a printed circuit board spaced apart from the display panel in a first direction and having at least one angled portion, a flexible member having a first portion connected to the display panel and a second portion spaced from the first portion, the second portion being connected to a first portion of the printed circuit board, and a support attached to the display panel and the printed circuit board to support the printed circuit board.