Bidirectional Foldable Display Hinge With Sliding Plate Tension Control
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Solution Overview
Problem
Current foldable display apparatuses face challenges with bidirectional folding, panel damage during repeated folding, buckling, and creasing due to adhesive recovery delays, and pressure distribution issues during in-folding and out-folding.
Innovation Solution
A bidirectional foldable display apparatus design featuring a sliding plate and spring member within a set housing to manage pressure and tension, supported by a hinge assembly that allows for both in-folding and out-folding while minimizing panel damage and creasing, using a support member and insertion members to maintain panel stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a hinge structure is designed to enable bidirectional folding (in-folding and out-folding), then the versatility and functionality of the display apparatus is improved, but the complexity of the hinge structure and pressure management system increases
Solution Approach 1:
The hinge structure is divided into multiple independent components including a first hinge, a second hinge, a sliding plate, and a spring member. Each component performs a specific function: the hinges enable bidirectional folding, the sliding plate manages pressure distribution, and the spring member maintains tension. This segmentation allows the complex bidirectional folding function to be achieved through coordinated simple components rather than a single complex mechanism.
Solution Approach 2:
The sliding plate is disposed within the hinge structure, specifically within a recess of the second set housing. The spring member is positioned to contact the sliding plate. This nested arrangement allows multiple functional components to be integrated in a compact space, reducing overall device complexity while maintaining bidirectional folding capability.
2Adaptability or versatility
If repeated folding operations are implemented to enhance versatility, then the adaptability of the display apparatus is improved, but the durability and reliability deteriorate due to panel damage and creasing
Solution Approach 1:
The spring member is pre-configured to apply continuous pressure to the sliding plate, which in turn applies pressure to the display panel at the folding area. This beforehand cushioning prevents the panel from experiencing sudden stress or creasing during repeated folding operations, maintaining panel integrity and durability over time.
Solution Approach 2:
The sliding plate acts as an intermediary component between the spring member and the display panel. It transmits the pressure from the spring member to the panel uniformly and prevents direct contact that could cause localized damage. This intermediary mechanism protects the panel during repeated folding while still allowing the necessary pressure to maintain tension.
3Manufacturing precision
If pressure is applied to maintain panel tension during folding, then the manufacturing precision and panel stability are improved, but the object-affected harmful factors increase due to potential panel damage
Solution Approach 1:
The sliding plate is specifically positioned to contact only the folding area of the display panel, applying pressure locally where needed to maintain tension and prevent creasing. The pressure is not applied uniformly across the entire panel but concentrated at the critical folding zone. This localized pressure application maintains panel stability without causing unnecessary stress or damage to other areas of the panel.
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 reliable, durable bidirectional folding with reduced panel damage and creasing, maintaining panel tension and pressure distribution for improved durability and functionality.
Implementation Method 1
a spring member in contact with the sliding plate, the spring member configured to apply pressure to the sliding plate such that the sliding plate moves in a direction that is dependent on a direction of folding of the foldable display apparatus
Data Source
AI summary
A foldable display apparatus is disclosed that comprises a first set housing and a second set housing and respectively supporting two different portions of a display panel; a sliding plate on an upper surface of one of the first set housing and the second set housing; a spring member applying pressure to the sliding plate such that the sliding plate moves in a direction that is dependent on a direction of folding of the foldable display apparatus; and a hinge assembly connected to the first set housing and the second set housing, the hinge assembly configured to fold the foldable display apparatus in a first direction and fold the foldable display apparatus in a second direction that is opposite the first direction.