Cover Panel Edge Thickness for Display Impact Resistance
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Solution Overview
Problem
Portable terminals with display panels, such as organic light emitting display panels, are vulnerable to external impacts, leading to potential damage when dropped, as existing solutions do not adequately address the need for improved durability and impact resistance.
Innovation Solution
A display apparatus design featuring a cover panel with a heat discharge member, an emission member, and a reinforcing member, where the reinforcing member is positioned to overlap with the edge areas of the heat discharge member, providing additional structural support and impact resistance, while also including a light blocking member and buffering member to absorb and disperse impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional display panel structure is used, then the device can be kept simple and thin, but the impact resistance and durability are insufficient when dropped
Solution Approach 1:
The cover panel is divided into different thickness zones: a first thickness in the center region and a second thickness (greater than the first) in the edge region. This segmentation allows the panel to provide enhanced impact resistance at the edges where drops typically occur, while maintaining overall structural simplicity and thinness in the display area.
Solution Approach 2:
The cover panel employs local quality by having different thicknesses in different regions. The edge portion has increased thickness specifically where impact resistance is most needed, while the center portion remains thinner to maintain display quality and overall device thinness. This resolves the contradiction by providing localized reinforcement without overall structural complexity.
2Reliability
If the cover panel thickness is increased throughout to improve impact resistance, then durability improves, but the device thickness and weight increase
Solution Approach 1:
The cover panel thickness is segmented into two distinct zones: a thinner first thickness in the center region and a thicker second thickness in the edge region. This segmentation allows the device to achieve improved durability through targeted edge reinforcement without increasing the overall device thickness, as only the perimeter area requires additional thickness for impact protection.
Solution Approach 2:
The cover panel applies local quality by providing different thickness characteristics in different regions. The edge region has increased thickness specifically where drop impacts most frequently occur, while the center display region maintains a thinner profile. This resolves the contradiction by localizing the thickness increase to only where it is structurally necessary.
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 enhances the impact resistance and durability of the display apparatus by effectively distributing and absorbing external forces, reducing the likelihood of damage from drops and improving the overall structural integrity of the portable terminal.
Implementation Method 1
the cover panel may include a heat discharge member that faces the display surface of the display panel such that the rear surface of the display panel is between the heat discharge member and the display surface
Implementation Method 2
a buffering member between the light blocking member and the heat discharge member
Data Source
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AI summary
A display apparatus includes a display panel including a display surface that displays an image and a rear surface that faces the display surface, a cover panel attached to the rear surface of the display panel, the cover panel including a center portion and an edge portion surrounding the center portion, the center portion having a thickness greater than a thickness of the edge portion, and a reinforcing member in an overlapping relationship with the edge portion of the cover panel, the reinforcing member facing the display panel such that the cover panel is between the reinforcing member and the display panel.