Flexible Display Sealant with Embedded Air Bubbles for Pad Impact Protection
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Solution Overview
Problem
Curved liquid crystal displays are prone to pad damage during rolling or bending, which affects their portability and durability.
Innovation Solution
A display device with a flexible substrate, thin film transistors, and a sealant containing air bubbles or particles that cover the pads and drivers, providing a buffer against external impacts and preventing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the liquid crystal display is made flexible for rolling or bending, then portability is improved, but the pad becomes vulnerable to damage from external impacts
Solution Approach 1:
The patent applies beforehand cushioning by incorporating air bubbles or particles into the sealant material before it is applied to cover the pads. These embedded air bubbles or particles create a cushioning effect that absorbs external impacts, preventing pad damage while maintaining the flexibility needed for portability.
Solution Approach 2:
The patent uses composite materials by combining the sealant with air bubbles or particles to create a multi-phase protective material. This composite sealant structure provides both the flexibility needed for portable displays and the impact resistance required to protect pads during rolling or bending operations.
2Reliability
If a rigid protective structure is added to protect the pad, then pad durability is improved, but the flexibility and portability of the display deteriorates
Solution Approach 1:
The patent employs flexible shells and thin films by using a sealant-based protective layer that remains flexible rather than rigid. The sealant with embedded air bubbles or particles creates a flexible protective shell that conforms to the display surface while providing impact protection, thus maintaining both durability and flexibility.
Solution Approach 2:
The patent applies parameter changes by modifying the physical properties of the sealant material through the incorporation of air bubbles or particles. This changes the mechanical parameters of the protective layer, providing impact absorption capability while maintaining flexibility and avoiding the rigidity that would compromise portability.
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 use of air bubbles or particles in the sealant effectively prevents pad damage from external impacts, enhancing the display's durability and portability by absorbing forces and maintaining functionality.
Implementation Method 1
the sealant includes air bubbles or particles therein... providing a buffer against external impacts and preventing damage
Implementation Method 2
providing a buffer against external impacts and preventing damage... by absorbing forces
Data Source
AI summary
A display device according to an exemplary embodiment includes a flexible substrate, a gate line and a data line located on the substrate, a thin film transistor connected to the gate line and the data line, a pixel electrode connected to the thin film transistor, a pad located at an end of the gate line and the data line, a driver connected to the pad, and a sealant covering the pad and the driver, wherein the sealant includes air bubbles or particles therein.