Foldable Sliding Display Housing With Hinge Gear Drive
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Solution Overview
Problem
Existing display devices, particularly flexible ones, face challenges in maintaining structural integrity during folding, bending, or rolling without sustaining damage, limiting their versatility and portability.
Innovation Solution
A display device design incorporating a hinge with a folding axis, motor gears, and a gearing system that allows for sliding and folding operations, enabling flexible display panels to be folded and slid without cracking, using a bevel gear shape for efficient power transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flexible display panel is folded or bent to improve portability, then the device can be reduced in size and made more portable, but the display panel may sustain cracking or damage
Solution Approach 1:
The display device is divided into multiple housing cases (first housing case, second housing case, third housing case) that can slide relative to each other. The display panel is segmented across these housing cases, allowing each segment to move independently during sliding operations, reducing stress concentration and preventing cracking while maintaining flexibility and portability.
2Ease of operation
If a sliding mechanism is added to enable the second active area to slide, then the display area can be expanded and user convenience improved, but the device complexity increases
Solution Approach 1:
The sliding mechanism merges multiple components into integrated assemblies: the first slide and second slide are combined with the first housing case and second housing case respectively; the motor gear integrates driving functionality into the third housing case. This merging reduces the number of separate parts while achieving the desired sliding effect, improving ease of operation without excessive complexity increase.
Solution Approach 2:
The housing cases serve multiple functions: they provide structural protection, enable sliding motion, accommodate the display panel, and house the motor gear. The display panel itself serves as both the display surface and the sliding element. This multi-functionality reduces overall device complexity while maintaining ease of operation.
3Productivity
If motor gear and gearing system are added to provide power for sliding operation, then the sliding function is enabled, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The motor gear acts as an intermediary component that converts rotational motion into linear sliding motion through engagement with the slides. The gearing system (including bevel gear and pinion gear) serves as a motion transmission intermediary between the motor and the sliding mechanism. These intermediary components enable controlled sliding while using standard gear manufacturing processes, balancing productivity enhancement with manufacturing feasibility.
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 design enhances the portability and adjustability of display devices by allowing seamless folding and sliding motions, improving user convenience and reducing the risk of damage to the display panel.
Implementation Method 1
The first motor gear may have a bevel gear shape. The gearing may include a first gear engaged with the first motor gear as a bevel gear.
Implementation Method 2
A pinion gear may be disposed on an opposite side to the first gear and may be engaged with the rack gear.
Data Source
AI summary
A display device includes a display panel including a first active area and a second active area that is adjacent to the first active area and slides from the first active area in the first direction. An input unit is disposed adjacent to the display panel. A hinge has a folding axis in the first direction and is configured to couple the display panel with the input unit so that the display panel and the input unit is folded on the folding axis. A first motor gear is configured to provide power for a slide operation of the second active area of the display panel. The display panel includes a first slide for sliding the second active area of the display panel in the first direction. The first motor gear is disposed on one side of the hinge in the first direction to engage with the first slide.