Magnetized Touch Panel Force Sense Without Electromagnets
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Solution Overview
Problem
Existing force sense presentation methods require a power source for electromagnets, limiting their application in input devices without electrical components.
Innovation Solution
A force sense presenting system using magnetized surfaces with S-pole and N-pole regions on a touch panel and wearable/gripped objects, allowing for tactile feedback without electromagnets by changing the relative positional relation between these surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an electromagnet is used to present force sense, then force feedback can be provided, but a power source is required which limits application in input devices without electrical components
Solution Approach 1:
The patent replaces the electromagnet system (electrical component) with a permanent magnet system (mechanical/magnetic component). The force sense is generated by the interaction between permanent magnets with specific pole arrangements, eliminating the need for electrical power while maintaining the force feedback function. This substitution allows input devices without electrical components to provide tactile feedback.
Solution Approach 2:
The patent changes the magnetic field generation method from active (electromagnet requiring power) to passive (permanent magnet). By arranging permanent magnets with specific N-pole and S-pole patterns on both the input device and the operated object, the system creates variable magnetic attraction/repulsion forces through relative movement, providing force sense without energy consumption.
2Use of energy by moving object
If permanent magnets are used instead of electromagnets, then power source is eliminated, but the ability to dynamically control force sense is reduced
Solution Approach 1:
The patent achieves dynamic force control with permanent magnets by making the relative position variable. As the user moves the operated object relative to the input device, the magnetic interaction changes dynamically based on the distance and orientation between the magnet patterns. This allows real-time adjustment of force sense without requiring active control systems or power sources.
Solution Approach 2:
The patent pre-arranges specific N-pole and S-pole patterns on the permanent magnets during manufacturing. These predetermined magnetic configurations enable the system to provide appropriate force feedback characteristics without requiring real-time adjustment mechanisms. The preliminary magnetization pattern design compensates for the lack of active control, maintaining ease of operation through clever passive design.
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
Enables the presentation of force sense to users operating input devices without the need for electrical power, providing tactile feedback through varying shearing stress, thus enhancing user interaction and experience.
Implementation Method 1
The first object includes a first surface, which is preliminarily magnetized with a first texture including an S-pole region and an N-pole region... The second object includes a second surface, which is preliminarily magnetized with a second texture including an S-pole region and an N-pole region
Implementation Method 2
A force sense is presented to a person who operates an input device without using an electromagnet in the present invention
Data Source
AI summary
A force sense is presented to a person who has operated an input device, without using an electromagnet. A force sense presenting object includes a first object and a second object. The first object includes a first surface, which is preliminarily magnetized with a first texture including an S-pole region and an N-pole region, and is disposed on an input surface of a touch panel. The second object includes a second surface, which is preliminarily magnetized with a second texture including an S-pole region and an N-pole region, and is worn, gripped, or supported by an acting subject performing an input operation with respect to the touch panel.