Dual-Shaft Hinge Support for Bendable Display Stress Buffering
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Solution Overview
Problem
Conventional supporting devices cause damage to bendable displays when outwardly bent due to the stretching of the hinge module, which leads to deformation and breakage of the display.
Innovation Solution
A dual-shaft hinge module with buffering modules is used, where the dual-shaft hinge module includes two shafts with spiral grooves, a transmitting member, and side wing members, and the buffering modules have internal and external connecting members that move in a predetermined distance to absorb the bending stress, preventing damage to the bendable display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional hinge module is used in a supporting device, then the device can support the carrying plate, but the hinge module stretches and deforms the bendable display when the plate is outwardly bent
Solution Approach 1:
The hinge module is divided into multiple segments (first hinge module and second hinge module) that can relatively move with respect to each other. This segmentation allows each segment to maintain a more stable length while collectively accommodating the bending motion, preventing stretching of the bendable display.
Solution Approach 2:
The hinge module transitions from a static, fixed-length structure to a dynamic structure where segments can relatively move. This dynamic configuration allows the hinge module to adapt its internal geometry during bending without changing the overall distance between mounting points, thereby protecting the bendable display from stretching.
2Stability of the object's composition
If the hinge module is made more rigid to maintain length, then structural stability is improved, but the bendable display cannot be folded without damage
Solution Approach 1:
By segmenting the hinge module into multiple movable parts, the structure achieves both rigidity (through precise positioning of segments) and flexibility (through relative motion between segments). This allows the supporting device to maintain structural stability while accommodating bending movements.
Solution Approach 2:
The hinge module employs dynamic mechanisms that allow controlled movement between segments during bending, while maintaining stable positioning during normal operation. This dynamic-static transition enables the structure to be both stable and adaptable.
3Reliability
If buffering modules are added to absorb bending stress, then protection of bendable display is improved, but device complexity increases
Solution Approach 1:
The buffering function is merged into the existing hinge module structure rather than being added as a separate system. The relative movement mechanism between hinge segments inherently provides buffering against bending stress, eliminating the need for additional complex buffering components.
Solution Approach 2:
The hinge module serves multiple functions: it provides structural support, enables bending motion, and simultaneously buffers against bending stress through its segmented dynamic design. This multi-functionality reduces the need for separate buffering modules and simplifies the overall device structure.
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 effectively prevents damage to the bendable display by maintaining the length of the hinge module and buffering modules during bending, allowing the display to be folded without deformation or breakage.
Implementation Method 1
each have a spiral groove recessed on an outer surface thereof. The transmitting member is clamped between the two shafts. The transmitting member has two driving portions respectively protruding from two opposite sides thereof and is respectively inserted into the two spiral grooves of the two shafts.
Implementation Method 2
The external connecting member is slidably disposed on the internal connecting member. When the carrying plate is bent along at least one of the two axes between an unfolded position and an outwardly folded position, the external connecting member of each of the buffering modules slides with respect to the corresponding internal connecting member
Data Source
AI summary
A supporting device includes a dual-shaft hinge module and two buffering modules respectively arranged at two opposite sides of the dual-shaft hinge module. Each dual-shaft hinge module includes two shafts, a linking member clamped between the two shafts, and two side wing members respectively and slidably installed on the two shafts. The two buffering modules are respectively installed on the two shafts and are respectively cooperated with the two side wing members. Each buffering module includes an internal connecting member fixed on and synchronously rotatable with the corresponding shaft and an external connecting member slidably disposed on the internal connecting member and provided to be fixed on a carrying plate. Each side wing member has a limiting portion passing through the corresponding internal connecting member and the corresponding external connecting member.