Switchable Magnetic Lock for Seamless Dual-Display Integration

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Solution Overview

Problem

Current solutions for expanding mobile computing device displays, such as docking stations and external displays, are bulky, heavy, and lack seamless integration, often failing to provide a satisfactory design due to poor form factors and high power requirements, especially with magnetic locking systems that require excessive force to separate.

Innovation Solution

A lockable display system using a switchable magnetic lock that locks to existing devices with minimal power consumption, featuring a diametrically magnetized magnet and magnetic-field directors to direct the magnetic field to a magnetically permeable material, allowing for seamless physical and functional integration, and automatic locking and unlocking based on user proximity and gestures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If permanent magnets are used for locking the display, then the display can be securely locked, but excessive force is required to separate the display from the mobile device

Engineering Contradiction:
Improvelocking strengthVSAvoidseparation force
Core Design Contradiction:
StrengthVSForce

Solution Approach 1:

The patent applies dynamics by making the magnetic field switchable between active and inactive states. The magnetic locking mechanism is dynamically controlled through a sensor that detects the presence or absence of the mobile device, automatically activating the magnetic field when the device is present and deactivating it when removed, thereby providing secure locking during use while enabling easy separation when needed

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the magnetic field parameter from static to dynamic by using a switchable magnetic field generated by an electromagnet rather than a permanent magnet. This allows the magnetic strength to be adjusted or completely deactivated based on operational conditions, resolving the contradiction between strong locking and easy separation

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If electromagnets are used for locking the display, then the display can be easily unlocked, but high power consumption is required

Engineering Contradiction:
Improveunlocking easeVSAvoidpower consumption
Core Design Contradiction:
Ease of operationVSUse of energy by moving object

Solution Approach 1:

The patent applies periodic action by using intermittent sensing and magnetic field activation rather than continuous operation. The sensor periodically detects the presence of the mobile device, and the magnetic field is activated only during periods when the device is detected, thereby enabling easy unlocking while minimizing power consumption during non-use periods

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system applies self-service by using an automatic sensor-based control mechanism that detects the mobile device's presence and automatically activates or deactivates the magnetic field without user intervention, making the system energy-efficient while maintaining ease of operation

Inventive Principle:
Principle #25Self-service

3Strength

If mechanical latches or tabs are used for locking, then the display can be securely attached, but the design becomes bulky with visible external components

Engineering Contradiction:
Improveattachment strengthVSAvoidform factor
Core Design Contradiction:
StrengthVSShape

Solution Approach 1:

The patent replaces the mechanical system of latches, tabs, or clips with an electromagnetic field-based locking mechanism. This substitution eliminates the need for visible external mechanical components, achieving secure attachment while maintaining a sleek, seamless form factor without bulky external structures

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Area of stationary object

If docking stations or peripheral attachments are used to expand display, then display area is increased, but the system becomes bulky and heavy

Engineering Contradiction:
Improvedisplay areaVSAvoidsystem weight
Core Design Contradiction:
Area of stationary objectVSWeight of stationary object

Solution Approach 1:

The patent merges the display attachment mechanism directly with the mobile device body, integrating the electromagnetic locking system into the device's existing structure. This eliminates the need for separate docking stations or peripheral attachments, achieving display area expansion while keeping the system lightweight and portable

Inventive Principle:
Principle #5Merging (Combining)

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 a mobile, lightweight, and easily usable dual-display system with increased screen real estate, maintaining mobility while providing a seamless design and low power consumption, allowing users to easily switch content between displays without mechanical dents or detents.

Implementation Method 1

a switchable magnetic lock including a diametrically magnetized magnet and magnetic-field directors. The magnetic-field directors are configured to direct the magnetic field of the diametrically magnetized magnet to a magnetically permeable material

Methodology Applied
Scientific EffectMagnetic field: Magnetic Field

Implementation Method 2

The magnetic-field directors are configured to direct the magnetic field of the diametrically magnetized magnet to a magnetically permeable material

Methodology Applied
Scientific EffectMagnetism: Magnetism

Data Source

PatentUS10120420B2Lockable display and techniques enabling use of lockable displays
Publication Date: 2018.11.06 MICROSOFT TECHNOLOGY LICENSING LLC
  • US10120420B2 patent drawing
  • US10120420B2 patent drawing
  • US10120420B2 patent drawing

AI summary

This document describes a lockable display and techniques enabling use of a lockable display. The techniques can enable computing devices to lock and unlock a display using little or no power and with a seamless design. The techniques and apparatuses can also enable integration between a lockable display and various computing devices, including to create a nearly seamless physical and functional design.