Flexible Display Positioning Mechanism with Leaf Spring and Sliding Block
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Solution Overview
Problem
Conventional flexible display supports lack an effective positioning mechanism to precisely control the angular relationship between support plates, limiting the flexibility and usability of flexible displays in various orientations.
Innovation Solution
A flexible display device incorporating a base support with interconnecting support ribs and a positioning mechanism comprising mounts, hinge bodies, a leaf spring unit, sliding block, and spring-loaded unit, allowing the display to transition smoothly between normal and bent positions while maintaining structural flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional support with two support plates connected by hinge members is used, then the flexible display can be bent, but the angular relationship between support plates cannot be precisely controlled
Solution Approach 1:
The support structure transitions from a static rigid connection to a dynamic system with multiple degrees of freedom. The support plates are connected through support ribs with sliding blocks that can move along guide surfaces, allowing the structure to adapt its angular relationship dynamically while maintaining precise control through the interaction of sliding blocks and camming surfaces.
Solution Approach 2:
The invention changes the geometric parameters of the support structure by introducing camming surfaces with specific profiles. These camming surfaces convert linear motion of sliding blocks into controlled angular changes between support plates, enabling precise angular relationship control while maintaining bending capability.
2Adaptability or versatility
If support plates are loosely interconnected to permit structural flexibility, then the display can transition between normal and bent positions, but positioning mechanism complexity increases
Solution Approach 1:
The support structure is segmented into multiple independent components: support plates, support ribs, sliding blocks, and spring units. Each component performs a specific function, and their modular arrangement allows structural flexibility while keeping the positioning mechanism manageable through functional decomposition.
Solution Approach 2:
The spring units automatically engage with the sliding blocks to provide positioning forces without external intervention. The camming surfaces and sliding blocks self-regulate the angular relationship through their geometric constraints, eliminating the need for complex external positioning systems.
3Measurement precision
If a positioning mechanism is added to control angular relationship, then angular precision is improved, but the support structure becomes more complex
Solution Approach 1:
The positioning function is merged into the structural support ribs themselves rather than being a separate mechanism. The sliding blocks are integrated with the support ribs, and the camming surfaces are formed as part of the support structure, combining positioning and support functions to minimize overall complexity.
Solution Approach 2:
The sliding blocks act as intermediaries between the support plates and the camming surfaces. They translate the complex angular relationship control into simple linear motion along the camming surfaces, reducing the complexity of the positioning mechanism while maintaining angular precision.
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 precise control over the angular relationship between support plates, enhancing the flexibility and usability of flexible displays by allowing continuous bending from a normal to multiple bent positions, ensuring secure retention without external force.
Implementation Method 1
The biasing member is disposed to bias the first stem end into frictional engagement with the camming surface of the camming wall such that once a force applied to move the sliding block against a biasing force of the biasing member between the distal and proximate positions ceases to be applied, the sliding block is kept retained between the distal and proximate positions.
Implementation Method 2
The spring-loaded unit is disposed in the accommodation space, and includes a pin stem and a biasing member. The biasing member is disposed to bias the first stem end into frictional engagement with the camming surface
Implementation Method 3
The base wall is configured to permit the elevated cantilever segment of one of the hinge bodies to overlie and to slidably engage with the floor segment of an adjacent one of the hinge bodies.
Data Source
AI summary
A flexible display device includes a base support of structurally flexible, a flexible display which is supported by and bendable with the base support, and at least one positioning mechanism disposed leftward or rightward of the base support. The positioning mechanism includes two mounts which are mounted to two support plates of the base support, a plurality of hinge bodies which are structurally flexible with a support rib unit of the base support, and a leaf spring unit extending through inside of the hinge bodies to terminate at a first spring end secured in one of the mounts, and a second spring end which is releasably and frictionally engaged inside the other one of the mounts by virtue of a sliding block and a spring-loaded unit.