Plastically Deformable Metal Pattern for Flexible Display Interconnects
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Solution Overview
Problem
Existing display devices face challenges in stably connecting display panels and circuit boards, particularly in flexible and wearable applications where mechanical stress and flexibility are concerns.
Innovation Solution
A display device design that incorporates a plastically deformable metal pattern on a thin film substrate, which is electrically insulated and strategically positioned to connect the display panel and circuit board without overlapping critical areas, thereby allowing for flexible integration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a metal pattern is disposed on a thin film substrate to connect display panel and circuit board, then the connection stability is improved, but the flexibility and adaptability to mechanical stress are worsened
Solution Approach 1:
The metal pattern undergoes plastic deformation to change its shape parameters, allowing it to adapt to mechanical stress and flexibility requirements while maintaining connection stability between the display panel and circuit board
Solution Approach 2:
The metal pattern is electrically insulated from the thin film substrate through strategic positioning and insulation layers, creating a composite structure that combines the electrical connectivity of metal with the flexibility of the thin film substrate
2Manufacturing precision
If the metal pattern is positioned to avoid overlapping critical areas, then the electrical insulation and manufacturing precision are improved, but the connection area and structural strength are reduced
Solution Approach 1:
The metal pattern is strategically positioned to have different properties in different regions: it provides electrical insulation where it avoids overlapping critical areas while maintaining connection strength in the pattern region through controlled plastic deformation
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 enables stable and flexible connections between display panels and circuit boards, enhancing the durability and usability of display devices in wearable and flexible applications.
Implementation Method 1
a metal pattern on a thin film substrate, wherein the metal pattern does not overlap a first portion of the thin film substrate connected to the display substrate and does not overlap a second portion of the thin film substrate connected to the circuit board
Data Source
AI summary
A display device including: a thin film substrate; a display substrate connected to a first side of the thin film substrate; a light emitting element layer on an upper surface of the display substrate; a circuit board connected to a second side of the thin film substrate opposite the first side of the thin film substrate in a first horizontal direction; a metal pattern on the thin film substrate, wherein the metal pattern does not overlap a first portion of the thin film substrate connected to the display substrate and does not overlap a second portion of the thin film substrate connected to the circuit board in a vertical direction, wherein the metal pattern includes a metal, and wherein the metal pattern is electrically insulated from the thin film substrate; and a pattern region, wherein the metal pattern is around the pattern region.