Flexible Display Assembly Bonding Structure for Bending Integrity
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Solution Overview
Problem
Existing display devices face challenges in reducing thickness while maintaining structural integrity, particularly in the bending process of flexible display panels, which often requires additional protective films that increase thickness.
Innovation Solution
A display assembly is designed with a flexible display panel, a cover plate, a film assembly, and a circuit board, where a first bonding portion is strategically placed at the edge of the film assembly to bond the cover plate or film assembly to the bending portion of the flexible display panel, enhancing the connection and preventing separation during bending.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional protective films are added to maintain structural integrity during bending, then the reliability is improved, but the thickness increases
Solution Approach 1:
The patent combines the protective function with the bonding function by integrating the first bonding portion into the edge region of the film assembly. This bonding portion serves dual purposes: it bonds the film assembly to the bending portion while simultaneously providing protection during the bending process, eliminating the need for separate protective films and thereby reducing overall thickness while maintaining structural integrity.
Solution Approach 2:
The first bonding portion is designed to perform multiple functions: it acts as an adhesive bonding layer that secures the film assembly to the bending portion, and simultaneously serves as a protective element during the bending process. This multi-functionality allows the display assembly to maintain structural integrity without adding extra protective film layers, thus resolving the thickness-reliability contradiction.
2Length of stationary object
If the thickness of the display assembly is reduced, then the lightness and thinness are improved, but the structural integrity during bending deteriorates
Solution Approach 1:
The patent merges the bonding function and protective function into a single integrated structure - the first bonding portion at the edge of the film assembly. This consolidation eliminates the need for additional protective films that would increase thickness, while the bonding portion itself provides sufficient structural support and protection during bending operations, thereby maintaining reliability in a thinner design.
Solution Approach 2:
The patent utilizes the film assembly and bonding portions as flexible thin film structures that can bend without compromising integrity. The first bonding portion is designed as a thin film structure that provides both adhesion and flexibility, allowing the display assembly to achieve reduced thickness while maintaining the ability to bend without structural failure.
Data Source
AI summary
A display assembly includes a cover plate, a film assembly, a flexible display panel and a circuit board. The flexible display panel includes a panel body and a bending portion connected to a side of the panel body. The cover plate, the film assembly and the panel body are sequentially stacked. The circuit board is disposed on a side of the panel body away from the film assembly, and the bending portion is electrically connected to the circuit board. The display assembly further includes a first bonding portion, the first bonding portion is disposed at a first side edge of the film assembly to bond at least one of the cover plate and the film assembly to the bending portion, and the first side edge of the film assembly is an edge of the film assembly proximate to the bending portion.