Pressure-Sensing Display Module With Peripheral Force-Sensor Layout
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Solution Overview
Problem
Conventional pressure sensors with force sensitive resistors cannot simultaneously perform pressure sensing and display functions due to the presence of wires within the pressure sensing area, limiting their functionality.
Innovation Solution
A pressure sensing display module is designed with a force sensitive unit in the wiring area and a display unit in the display area, allowing the force sensitive unit to be activated without interfering with the display, enabling both pressure sensing and display functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the force sensitive resistor lines are placed in the pressure sensing area, then the pressure sensing function is achieved, but the display function is blocked
Solution Approach 1:
The patent divides the device into distinct functional zones: the force sensitive unit is positioned in the wiring area while the display unit occupies the display area. This spatial segmentation allows both pressure sensing and display functions to operate independently without interference, resolving the contradiction between sensing reliability and display area availability.
Solution Approach 2:
The patent transitions from a two-dimensional planar layout where sensor lines would block display area to a three-dimensional arrangement where the force sensitive unit is positioned in the wiring area beneath or adjacent to the display area, allowing both functions to coexist in different spatial dimensions.
2Adaptability or versatility
If the force sensitive unit is positioned in the display area, then pressure sensing is enabled, but the display information cannot be shown
Solution Approach 1:
The patent segments the device into functionally independent zones where the force sensitive unit resides in the wiring area and the display unit occupies the display area. This segmentation ensures that pressure sensing capability is maintained while display information remains visible and unaffected.
Solution Approach 2:
The patent introduces an intermediary spatial arrangement where the wiring area serves as a buffer zone between the pressure sensing function and the display area, allowing both functions to operate without direct interference and preventing information loss.
3Reliability
If conventional pressure sensor design is used, then pressure sensing is achieved, but both pressure sensing and display functions cannot coexist
Solution Approach 1:
The patent applies segmentation by dividing the device into distinct functional zones: the force sensitive unit is positioned in the wiring area while the display unit occupies the display area. This spatial segmentation allows both pressure sensing and display functions to operate independently without interference, resolving the contradiction between sensing reliability and display area availability.
Solution Approach 2:
The patent achieves multi-functionality by designing a unified structure where both the force sensitive unit and display unit are integrated into a single device with distinct functional zones, allowing the device to perform both pressure sensing and information display functions simultaneously.
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
The solution allows for effective pressure sensing and display functionality, preventing misoperations by ensuring the force sensitive unit only responds to appropriate pressure thresholds, thus enhancing user interaction and device usability.
Implementation Method 1
The force sensitive resistor is a special component that can convert mechanical force into electrical signal, which is made of semiconductor materials with pressure resistance effect.
Data Source
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AI summary
A pressure sensing display module has a display area and a wiring area surrounding a periphery of the display area. The pressure sensing display module includes a force sensitive unit provided in the wiring area; and a display unit provided corresponding to the display area. Information generated by the display unit is displayed on the display area.