Dual-Display Hinge Assembly With Spring Opening and Magnetic Closure
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Solution Overview
Problem
The development of hinged mobile computing devices with dual displays and thin bezels is challenging due to the need to balance screen space, usability, and structural integrity.
Innovation Solution
A mobile computing device is designed with a hinge assembly that allows the dual displays to rotate from a face-to-face to a back-to-back orientation, incorporating a spring-loaded opening mechanism and a magnetic closure system to manage the display orientation and retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If a hinge assembly with dual displays is implemented to increase screen space, then the usable display area is improved, but the device complexity increases
Solution Approach 1:
The hinge assembly integrates multiple components including spring-loaded mechanisms, magnetic closure systems, and rotational joints within a compact structure. The spring-loaded opening mechanism is nested within the hinge assembly, which itself is integrated between the first and second housing parts, allowing dual displays to be stacked in a closed state while maintaining rotation capability.
Solution Approach 2:
The hinge assembly enables dynamic transformation between different display orientations (face-to-face and back-to-back) through rotational movement. The spring-loaded mechanism provides dynamic biasing torque that assists the opening motion, while the magnetic closure system provides dynamic retention in the closed position, allowing the device to adapt between compact and expanded display configurations.
2Area of moving object
If thin bezels are used to increase usable display area, then the screen space is improved, but the structural integrity deteriorates
Solution Approach 1:
The device employs composite construction with housing parts that appear to be made of rigid materials providing structural support. The hinge assembly integrates multiple material properties including elastic materials for the spring-loaded mechanism and magnetic materials for the closure system, creating a composite structure that maintains strength despite thin bezel dimensions.
3Ease of operation
If a spring-loaded opening mechanism is added to assist display opening, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The spring-loaded opening mechanism functions as a counterweight system that provides biasing torque to assist the opening motion of the hinge assembly. The spring mechanism stores elastic potential energy that is released to help overcome the weight and friction of the rotating displays, making the opening operation easier while the spring is integrated within the existing hinge structure.
4Reliability
If a magnetic closure system is implemented to retain displays in closed orientation, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The magnetic closure system replaces traditional mechanical latch or snap-fit mechanisms with a magnetic field-based retention system. Magnets embedded in the housing parts create magnetic attraction forces that reliably hold the displays in the closed face-to-face orientation without requiring complex mechanical interlocking components, simplifying the overall mechanism while improving reliability.
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 provides increased screen space while maintaining a compact device form factor, allowing users to easily switch between display orientations for different usage scenarios.
Implementation Method 1
A spring-loaded opening mechanism may be arranged in the hinge assembly. The spring-loaded opening mechanism may be configured to bias with a biasing torque the first housing part and the second housing part to rotate away from each other
Implementation Method 2
The mobile computing device may further include a magnetic closure system. The magnetic closure system may be configured to retain the first and second displays in the closed face-to-face orientation against the biasing torque of the spring-loaded opening mechanism
Data Source
AI summary
A hinged mobile computing device includes a first housing part with a first display and a second housing part with a second display. The first and second housing parts are coupled by a hinge assembly that includes a spring-loaded opening mechanism configured to bias with a biasing torque the first housing part and second housing part to rotate away from each other when the first and second displays are in a closed face-to-face orientation. An electro-magnetic closure system is configured to retain the first and second displays in the closed face-to-face orientation against the biasing torque of the spring-loaded opening mechanism, and release of the electro-magnetic closure system permits the first housing part to rotationally separate from the second housing part to a predetermined angular orientation due to the biasing force of the spring-loaded opening mechanism.