Folded Display Panel Structure for Visible Connection Inspection
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Solution Overview
Problem
Existing display apparatuses face challenges in easily identifying electrical connections between flexible circuit boards and display panels, leading to potential defects and reduced productivity, especially when non-transparent materials obscure indentation detection, and require stronger stiffness and a slimmer design.
Innovation Solution
A display apparatus design featuring a transparent second plate on the back face of the display panel to visually confirm electrical connections and a porous member for increased impact stiffness, using first and second plates with different areas and a spacer to facilitate alignment and connection verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a non-transparent material is used for the second plate to increase impact stiffness, then the structural strength is improved, but the ability to visually confirm electrical connections is deteriorated
Solution Approach 1:
The second plate is designed with a transparent window at the connection position while other areas can use non-transparent materials for impact resistance. This local transparency allows visual confirmation of electrical connections without compromising overall structural strength, as the transparent region is confined to a specific area where observation is needed.
Solution Approach 2:
A transparent adhesive layer is introduced between the flexible circuit board and display panel in the connection region. This intermediary transparent material allows light transmission for visual inspection while maintaining the adhesive bonding function, enabling both connection verification and structural integrity.
2Length of moving object
If the bezel area is reduced to improve portability and user immersion, then the overall thickness and visual appeal are improved, but the space for structural support components is reduced
Solution Approach 1:
The patent utilizes flexible circuit boards with integrated adhesive layers that can conform to reduced bezel dimensions. The flexible nature allows maintaining electrical connection functionality even in thinner, smaller bezel areas, providing structural support without requiring large rigid components.
Solution Approach 2:
The second plate employs composite construction combining transparent and non-transparent regions with different mechanical properties. The transparent window area provides flexibility for connection verification while surrounding non-transparent regions maintain structural support, enabling reduced bezel design without sacrificing strength.
3Device complexity
If the flexible circuit board and display panel are not properly aligned, then manufacturing complexity is reduced, but the electrical connection reliability is deteriorated
Solution Approach 1:
The transparent adhesive layer on the second plate serves dual functions: it provides adhesive bonding and simultaneously enables visual self-inspection of alignment and connection quality. Operators can directly observe whether the flexible circuit board is properly aligned and connected through the transparent region, allowing self-verification without additional complex alignment mechanisms.
Solution Approach 2:
The transparent window creates an optical feedback mechanism where the connection state becomes visible. If misalignment occurs, the lack of proper contact or indentation is directly observable through the transparent second plate, providing immediate visual feedback that allows for correction before final assembly, ensuring connection reliability without requiring complex alignment systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances productivity by simplifying connection verification and improves impact resistance through a transparent second plate and porous member, ensuring reliable electrical connections and maintaining a slim, strong display apparatus.
Implementation Method 1
the first plate includes a porous member
Implementation Method 2
the second plate includes a transparent area
Implementation Method 3
a conductive adhesive such as ACF (anisotropic conductive film) including conductive balls may be interposed between the flexible circuit board and the display panel, and then heat and pressure may be applied to the adhesive to cure the conductive adhesive
Data Source
AI summary
Disclosed is a display apparatus including a display panel including a front portion, a bent portion, and a pad portion bent from the bent portion and positioned under the front portion, a first plate disposed between the front portion and the pad portion and disposed under the front portion, and a second plate disposed between the front portion and the pad portion and disposed on a top face of the pad portion, wherein the first plate includes a porous member, wherein the second plate includes a transparent area.