Transparent Display Panel Frame Stress Suppression
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Solution Overview
Problem
Existing display devices with a flat display panel and a front panel configuration experience display defects such as peeling-off or cracking due to stress, especially when a bezel is disposed on the periphery, which impairs the floating effect intended by a transparent frame.
Innovation Solution
A display device configuration featuring a display panel bonded to a plate-shaped member using a transparent bonding member, with an opaque frame member and a holding member fixed to the plate-shaped member to suppress deformation and stress, while maintaining the floating effect by incorporating a transparent peripheral edge portion and a frame-shaped groove for the frame member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a bezel is disposed on the periphery of the display device to suppress display defects, then the reliability is improved, but the floating effect is impaired
Solution Approach 1:
The frame member is configured to be opaque only at specific regions (peripheral edge and inner circumferential side) while maintaining transparency in the screen portion, allowing the floating effect to be preserved visually while providing structural support where needed to prevent display defects
2Shape
If the display panel and plate-shaped member are bonded using a transparent bonding member to maintain the floating effect, then the visual appearance is improved, but display defects such as peeling-off and cracking occur due to stress
Solution Approach 1:
The frame member is divided into different regions with different optical properties: a transparent screen portion for maintaining the floating effect, and opaque peripheral regions for providing structural support and stress distribution, thereby resolving the contradiction between visual appearance and reliability
Solution Approach 2:
The frame member functions as a composite structure combining transparent and opaque regions, where each region serves a different function - the transparent part maintains the floating effect while the opaque peripheral parts provide mechanical support to prevent peeling and cracking
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
The solution effectively suppresses display defects like peeling-off and cracking, while maintaining the floating effect by distributing stress and enhancing the perceived floating sensation through the transparent peripheral edge and hidden frame member, ensuring reliability under load conditions.
Implementation Method 1
a bonding member that has transparency and is configured to bond the display panel and the plate-shaped member to each other
Data Source
AI summary
Disclosed herein is a display device including a display panel having a display portion configured to display an image, a plate-shaped member having a first principal surface and a second principal surface, the display panel being disposed on a second principal surface side, the plate-shaped member including a screen portion disposed in a position corresponding to the display portion, an opaque frame member disposed at a peripheral edge of the screen portion, a bonding member that has transparency and is configured to bond the display panel and the plate-shaped member to each other, a holding member disposed on the second principal surface side of the plate-shaped member, and a fixing member configured to fix the frame member and the holding member to the plate-shaped member, the plate-shaped member further including a transparent peripheral edge portion disposed on an outside of the frame member.