Cover Spacer Edge Alignment in Touch-Integrated Display Assembly
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Solution Overview
Problem
Existing display devices face challenges in efficiently integrating touch sensing units with display panels while maintaining structural integrity and ease of manufacturing.
Innovation Solution
A display device design that includes a substrate with distinct regions, a display layer, a cover spacer made of metal, and multiple adhesive layers strategically positioned to align edges and enhance structural support and manufacturing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a touch sensor is attached to the display panel, then touch sensing function is achieved, but structural complexity increases
Solution Approach 1:
The patent combines the touch sensor and display panel into a single integrated structure where the touch sensor is directly attached to the display panel, merging two functional components into one unified assembly that reduces overall structural complexity while maintaining both display and touch sensing capabilities
Solution Approach 2:
The display panel serves multiple functions by integrating both display capability and touch sensing functionality into a single component, allowing it to act as both the visual output interface and the user interaction interface, thereby reducing the need for separate structural elements
2Stability of the object's composition
If multiple adhesive layers are used to attach components, then structural integrity is improved, but manufacturing complexity increases
Solution Approach 1:
The patent divides the attachment structure into multiple adhesive layers positioned at different locations and serving different functions - a first adhesive layer for attaching the touch sensor to the display panel and a second adhesive layer for attaching the cover spacer to the substrate, allowing each adhesive layer to be optimized for its specific attachment requirement while maintaining overall manufacturing feasibility
Solution Approach 2:
Different adhesive layers are applied at specific locations where needed - the first adhesive layer is applied where the touch sensor contacts the display panel, and the second adhesive layer is applied where the cover spacer contacts the substrate, ensuring structural integrity is enhanced only where mechanically necessary rather than uniformly across the entire device
3Manufacturing precision
If edges of adhesive layers and cover spacer are aligned, then manufacturing precision is improved, but assembly flexibility is reduced
Solution Approach 1:
The patent specifies that the edges of the adhesive layers and cover spacer are pre-aligned in the design stage, establishing precise geometric relationships before assembly occurs. This preliminary alignment configuration ensures that during manufacturing, components can be assembled with high precision without requiring complex real-time adjustment mechanisms, thereby maintaining both manufacturing precision and assembly ease
Data Source
AI summary
A display device includes a substrate including a display region and a non-display region, a display layer disposed on the substrate and overlapping the display region, a cover spacer disposed on the substrate and comprising metal, and a first adhesive layer disposed between the cover spacer and the substrate, wherein an edge of the cover spacer and an edge of the first adhesive layer overlap each other.