Display Window Alignment Key Exposure for Panel Coupling
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Solution Overview
Problem
The increasing demand for flexible and larger display devices in mobile electronic devices poses challenges in precise alignment and coupling of panels, particularly due to miniaturization of components and diverse designs, which existing methods struggle to address effectively.
Innovation Solution
A method involving the use of alignment key areas on a window and corresponding alignment marks on panels, where a printed layer covers the window's printed area to expose the alignment key areas, allowing for precise alignment and coupling of touch and display panels by sensing and overlapping center points defined by imaginary lines connecting key positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If components are miniaturized to increase display device functionality, then device functionality and integration are improved, but alignment precision and coupling accuracy deteriorate
Solution Approach 1:
The invention divides the alignment system into multiple discrete alignment marks positioned at specific locations (e.g., four corners or symmetric positions) on both the window and panel. Each alignment mark serves as an independent reference point, allowing the system to handle miniaturized components with high precision through distributed measurement rather than relying on a single large alignment feature.
Solution Approach 2:
The invention replaces manual or mechanical alignment methods with an automated optical detection system. Sensors or imaging devices detect the positions of alignment marks, and a control system automatically calculates alignment offsets and adjusts panel positioning, eliminating manual measurement errors and achieving sub-pixel alignment precision even for miniaturized components.
2Adaptability or versatility
If diverse display device designs are implemented to meet market demands, then product variety and market adaptability are improved, but alignment complexity and manufacturing difficulty increase
Solution Approach 1:
The invention creates a universal alignment mark structure that can be applied across diverse display device designs. The alignment marks are positioned at standard locations (e.g., symmetric positions relative to the display area) and follow consistent geometric patterns, allowing the same alignment methodology to work for various screen sizes, shapes, and device configurations without requiring design-specific alignment procedures.
Solution Approach 2:
The invention uses parameter-based alignment where the positions and coordinates of alignment marks are defined by mathematical relationships (e.g., symmetric positioning, equal spacing from edges). By changing only the numerical parameters (coordinates, spacing distances) rather than the fundamental alignment methodology, the system can adapt to diverse device designs while maintaining consistent alignment complexity and manufacturing procedures.
Data Source
AI summary
A method of manufacturing a display device includes providing a window including a printed area and a plurality of alignment key areas, patterning a printed layer on the printed area such that the plurality of alignment key areas is exposed and the printed layer covers the printed area, aligning a panel to the window by using the plurality of alignment key areas, and coupling the panel to the window.