Foldable Display Chip Cover Layer for Interference and Moisture Protection
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Solution Overview
Problem
Display devices with flexible panels face interference issues between driving chips and connection substrates, and lack effective protection against external elements like moisture, leading to potential damage and malfunction.
Innovation Solution
A display device design featuring a cover layer with thermally conductive polymers and heat dissipation materials on multiple sides of the driving chip, combined with a connection substrate having holes to reduce interference and expose the chip, along with protective films to prevent external damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the driving chip is disposed close to the display panel, then the device structure is more compact, but interference between the driving chip and connection substrate increases
Solution Approach 1:
The connection substrate is segmented by forming holes that divide the substrate into separate regions. This segmentation allows the driving chip to be positioned in a dedicated area without direct contact with the connection substrate, reducing interference while maintaining compact device structure.
2Device complexity
If the driving chip is exposed without protection, then the device structure is simpler, but the driving chip becomes vulnerable to external elements like moisture
Solution Approach 1:
A cover layer is introduced as a thin film structure that protects the driving chip from external elements such as moisture. The cover layer is configured to contact the driving chip and is positioned within the holes of the connection substrate, providing protection without significantly increasing device complexity.
3Reliability
If a cover layer is added to protect the driving chip, then protection against external elements is improved, but device complexity increases
Solution Approach 1:
The cover layer serves multiple functions simultaneously: it protects the driving chip from moisture and external elements, provides structural support within the holes of the connection substrate, and helps maintain the compact device architecture. This multi-functionality reduces the need for additional separate protective components.
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 reduces interference and protects the driving chip from external elements, enhancing the display device's reliability and durability by ensuring proper adhesion, heat dissipation, and moisture resistance.
Implementation Method 1
the cover layer includes a thermally conductive polymer and a heat dissipation material
Data Source
AI summary
A display device including: a display panel including a first area, a second area that can be bent from the first area, and a third area extending from the second area; a driving chip disposed in the third area; a connection substrate including a first hole wherein the first hole overlaps the driving chip and the third area; and a cover layer disposed in the third area wherein the cover layer contacts one or more sides of the driving chip.