Touch Display Module Adhesive Gap Calibration
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Solution Overview
Problem
The existing adhesive methods for assembling touch display modules in electronic devices, such as tablet computers, face challenges with inaccurate position calibration and high reattachment probabilities due to imperfect gaps between the case and the touch panel, leading to inefficiencies in the assembly process.
Innovation Solution
The proposed solution involves a touch display module with a touch panel, an adhesive element, a release element, and a positioning element, where the positioning element's extended section is clamped between the panel and case sides to calibrate the gap accurately, and the release element allows for easy detachment, improving assembly efficiency and reducing reattachment issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a tape is used to attach the touch panel to the case, then the thickness is reduced, but the position calibration accuracy deteriorates and reattachment probability increases
Solution Approach 1:
The adhesive element is divided into a first adhesive portion and a second adhesive portion positioned at different locations. The first adhesive portion attaches the touch panel to the case while the second adhesive portion maintains a specific gap distance, enabling both thin profile and precise positioning without reattachment.
Solution Approach 2:
The adhesive element acts as an intermediary component between the touch panel and the case. It not only provides bonding function but also precisely controls the gap distance through its structural design (first and second adhesive portions), eliminating the need for reattachment while maintaining thin profile.
2Ease of manufacture
If a tape is used to attach the touch panel to the case, then the assembly process is simplified, but the reattachment probability increases due to imperfect gaps
Solution Approach 1:
The adhesive element is pre-configured with a specific gap distance between its first and second adhesive portions before assembly. This preliminary positioning ensures that when the touch panel is attached to the case, the gap is automatically maintained at the correct distance, preventing imperfect gaps that would require reattachment.
Solution Approach 2:
The adhesive element serves as a mediator that simultaneously provides bonding and precise gap control functions. Its dual-adhesive-portion structure ensures reliable attachment while maintaining consistent spacing, eliminating the need for reattachment operations.
3Productivity
If the gap between the case and touch panel is not precisely controlled, then the assembly process is faster, but the position calibration accuracy deteriorates
Solution Approach 1:
The adhesive element comes pre-configured with the exact gap distance required between the touch panel and case. The first adhesive portion bonds to one surface while the second adhesive portion bonds to the opposing surface at a predetermined distance, automatically establishing precise positioning during a single assembly operation without requiring additional calibration steps.
Solution Approach 2:
The adhesive element's physical structure is designed with specific parameters (distance between first and second adhesive portions) that directly control the gap distance. By changing the adhesive element's structural parameters during manufacturing, the gap distance is precisely controlled during assembly, enabling both high speed and high precision.
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 enables precise calibration of the touch panel's position relative to the case, reducing reattachment probabilities and enhancing the assembly efficiency of electronic devices like tablet computers by utilizing the adhesive and positioning elements to manage the gap between the panel and case sides.
Implementation Method 1
an adhesive element, wherein the adhesive element has a first adhesive surface and a second adhesive surface opposite to each other, the first adhesive surface is operably attached to the panel jointed surface, and the second adhesive surface is operably attached to the groove jointed surface
Data Source
AI summary
An electronic device includes case and touch display module. The case has assembling groove, groove jointed surface and groove side surface. The touch display module disposed on the case has touch panel, adhesive element and positioning element. The touch panel located at the assembling groove has panel jointed surface and panel side surface. The panel jointed surface faces the groove jointed surface. The panel side surface faces the groove side surface. The adhesive element has two surfaces opposite to each other. The positioning element has auxiliary section and extended section. The auxiliary section is attached to one of the adhesive surface. The extended section extends from the adhesive surface and can be detachably clamped between the panel side surface and the groove side surface, which makes the gap between the groove side surface and the panel side surface is the same as the thickness of the extended section.