Touch Panel Manufacturing Using Gluing Frame Alignment
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Solution Overview
Problem
The existing manufacturing methods for touch panels are complex, time-consuming, and costly, with low yield due to the difficulty in aligning and cutting flexible transparent films and glass substrates of different properties, leading to inefficient mass production and alignment issues.
Innovation Solution
A method involving a rectangular transparent film glued to a back liner with upper electrode units, where the film is cut without breaking the back liner, and the glass substrate is cut with trenches to form touch panels in a single machining process, using a gluing frame for alignment and peeling to separate panels efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the transparent film and glass substrate are cut into small units before assembly, then each unit can be processed individually, but the alignment becomes difficult and the work complexity increases
Solution Approach 1:
The transparent film and glass substrate are kept as integral pieces during the resistor film arrangement and gluing processes. The cutting operation is performed after these preliminary steps are completed, allowing alignment to be established before separation into individual units.
Solution Approach 2:
Multiple touch panel components (transparent film, glass substrate, resistor films, glues) are combined into integral pieces and processed together as a single unit. The cutting operation separates them only after all alignment-critical operations are completed, effectively merging the processing steps for multiple components.
2Manufacturing precision
If cutters are used to cut both the transparent film and glass substrate simultaneously, then alignment of cutting lines is achieved, but the cutter becomes dull and the glass substrate strength deteriorates
Solution Approach 1:
The cutting operation is segmented into two separate steps: first cutting the transparent film, then cutting the glass substrate. This avoids using a single cutter on both materials, preventing cutter dulling and glass substrate damage while maintaining alignment through the previously established gluing frame structure.
Solution Approach 2:
The gluing frame acts as an intermediary structure that establishes and maintains alignment between the transparent film and glass substrate. This intermediary alignment structure allows subsequent cutting operations to be performed separately without compromising alignment precision.
3Ease of manufacture
If the transparent film is cut easily due to its flexibility, then the cutting process is simple, but the hard coating layer peels away and the adhesion structure is destroyed
Solution Approach 1:
The gluing frame is constructed and the adhesion structure is established before the cutting operation. This preliminary action ensures that when the transparent film is cut, the hard coating layer remains supported by the gluing frame structure, preventing peeling and maintaining integrity.
4Manufacturing precision
If manual processing is used for each touch panel unit, then alignment can be carefully controlled, but the production efficiency is low and costs are high
Solution Approach 1:
Multiple touch panel components are merged into integral pieces and processed together in batch operations. The transparent film and glass substrate are kept as large integral pieces during resistor film arrangement, gluing frame construction, and assembly, allowing multiple units to be processed simultaneously rather than individually.
Solution Approach 2:
Alignment-critical operations (resistor film arrangement, gluing frame construction) are performed on integral pieces before cutting into individual units. This preliminary action on larger components enables batch processing while maintaining precision, as the cutting operation is deferred until after alignment is established.
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
This method significantly increases production efficiency, reduces labor and time costs, and improves yield by allowing multiple touch panels to be produced in one process while maintaining alignment precision and preventing disorder in the machining process.
Implementation Method 1
sticking a rectangular transparent film to a back liner
Implementation Method 2
a cutter cutting the transparent film
Implementation Method 3
a glass cutter cutting along a cutting line into one lateral side of the surface on the glass substrate so as to be formed with a trench
Implementation Method 4
each upper electrode unit of the transparent film being formed with a closed gluing frame along an inner periphery of the cutting line; sticky a surface of each upper electrode unit on the transparent film to a surface of a respective lower electrode unit on the glass substrate by the gluing frame
Implementation Method 5
performing a piece peeling operation so as to acquire each touch panel
Data Source
AI summary
A method for manufacturing a touch panel for acquiring a plurality of touch panels in one machining process comprises the steps of: sticking a rectangular transparent film to a back liner as to be formed with an upper material piece; each upper electrode unit of the transparent film being formed with a closed gluing frame along an inner periphery of the cutting line; forming a plurality of lower electrode units with an identical specification as the upper electrode units on the transparent film on a surface of the glass substrate; sticky a surface of each upper electrode unit on the transparent film to a surface of a respective lower electrode unit on the glass substrate by the gluing frame; a glass cutter cutting along a cutting line into one lateral side of the surface on the glass substrate; performing a piece peeling operation so as to acquire each touch panel.