Touch Panel Unit Frame Corner Support and Display Clamping
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Solution Overview
Problem
The existing touch panel assembly process is cumbersome due to the increased number of components required, which complicates the assembly and reduces productivity, especially when a piezoelectric element is adhered to the rear face of the touch sensor and a predetermined space is maintained between the touch sensor and the display panel.
Innovation Solution
A unit frame with support members at each corner to hold the touch sensor and holding members to clip the display panel, reducing the number of components and simplifying assembly by integrating a frame body with edge members, openings, and guide portions to manage the flexible circuit board, allowing for easier mounting and vibration of the touch sensor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a piezoelectric element is adhered to the rear face of the touch sensor and the touch sensor is fixed to the display panel via insulators at each corner, then the touch sensor can be held with a predetermined space from the display panel, but the number of components increases and assembling becomes troublesome
Solution Approach 1:
The support member integrates multiple functions: it supports the touch sensor from below, maintains the predetermined space, and cooperates with the holding member to clip the display panel corner. This merging of functions reduces the number of separate components needed while maintaining positioning stability.
Solution Approach 2:
The support member serves multiple purposes simultaneously: mechanical support, spacing maintenance, and structural cooperation with the holding member for display panel fixation. This multi-functionality eliminates the need for separate insulators and support structures.
2Device complexity
If the touch sensor is held above the display panel with a predetermined space without a piezoelectric element, then the structure is simplified, but the tactile sensation feedback is lost
Solution Approach 1:
The support member combines the mechanical support function with the spacing function, creating a simplified structure that maintains the necessary gap between touch sensor and display panel without requiring additional insulators or complex mounting mechanisms.
3Manufacturing precision
If multiple insulators are used to fix the touch sensor to the display panel, then the touch sensor can be properly positioned, but productivity deteriorates due to troublesome assembly
Solution Approach 1:
The support member integrates positioning and support functions that were previously distributed across multiple insulators, reducing the number of components to be assembled while maintaining precise positioning accuracy through its structural design.
Solution Approach 2:
The support member is pre-configured with the appropriate height to provide the predetermined space, eliminating the need for complex assembly procedures to achieve proper positioning. The structure is designed to self-align and maintain precision during assembly.
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 configuration reduces the complexity of assembly, minimizes the number of components, and enhances productivity by providing a structured framework for mounting the touch sensor and display panel with a predetermined space, while preventing interference and damage to the flexible circuit board.
Implementation Method 1
a piezoelectric element in the strip shape is adhered to a rear face of the touch sensor
Data Source
AI summary
A unit frame 10 for touch panel for supporting a touch sensor and a display panel, both of which are in the rectangular shape, with a predetermined space therebetween, includes a frame body 11 in the rectangular shape, a support member 12, having a height corresponding to the predetermined space and provided at each corner of the frame body 11, configured to support each corner of a rear face of the touch sensor, and a holding member 13, provided at each corner of the frame body 11 on an opposite face to a face where the support member 12 supports the touch sensor, configured to clip the display panel in cooperation with the support member 12 corresponding to the holding member 13.