Foldable Display Plate Structure for Heat Dissipation and Waterproofing
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Solution Overview
Problem
Existing display devices face challenges in achieving effective heat dissipation and waterproofing, particularly in flexible or foldable designs where components are subjected to stress and moisture exposure.
Innovation Solution
The display device incorporates a structure with a first and second non-folding region, a folding region, a heat dissipation layer, and a metal plate under the display panel, featuring openings and adhesive layers to allow for heat dissipation and waterproofing, with a conductive pattern connected to a printed circuit board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a continuous metal plate is used under the display panel, then structural strength and waterproofing are improved, but heat dissipation performance deteriorates
Solution Approach 1:
The metal plate is divided into multiple separate patterns (first metal pattern, second metal pattern, third metal pattern) instead of using a continuous plate. These segmented metal patterns are arranged in different regions (first non-folding region, folding region, second non-folding region) to provide both structural support and waterproofing while allowing heat to dissipate through the gaps between the patterns.
2Strength
If adhesive layers are applied to bond the metal plate, then bonding strength is improved, but heat dissipation is blocked
Solution Approach 1:
Adhesive layers are applied selectively only in specific regions where bonding is required, rather than covering the entire metal plate surface. This localized application of adhesive maintains bonding strength in critical areas while leaving other areas open for heat dissipation. The adhesive layers are positioned to bond the metal patterns to the support substrate without creating a continuous thermal barrier.
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
This design enhances heat dissipation and waterproofing capabilities, improving the durability and performance of flexible display devices by reducing stress and moisture ingress.
Implementation Method 1
a heat dissipation layer under the first plate
Implementation Method 2
a first adhesive layer between the first plate and the heat dissipation layer, and a second adhesive layer between the heat dissipation layer and the second plate
Data Source
AI summary
A display device includes a display panel including a folding region at which the display panel is foldable, and in order from the display panel a first plate facing the display panel and including a lower surface furthest from the display panel, a heat dissipation layer facing the first plate, and a second plate facing the heat dissipation layer, the second plate defining a first opening which exposes the lower surface of the first plate to outside the second plate.