Flexible Display Curvature Adjustment Using Lead-Screw Wings
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Solution Overview
Problem
Existing display devices lack the ability to freely change the curvature of the display panel, limiting their flexibility and adaptability.
Innovation Solution
A display device comprising a flexible display panel, a flexible plate coupled to the rear, a driving module with a moving block on a lead screw, wings with pivot shafts, wing brackets, and an elastic member to push the wings, allowing for the display panel to change curvature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rigid structure is used for the display panel, then structural stability is improved, but flexibility and curvature change capability deteriorate
Solution Approach 1:
The patent applies the dynamics principle by implementing a movable support structure with sliding blocks that can adjust the curvature of the display panel dynamically. The support module includes a base, support arms with pivot joints, and sliding blocks that move along guide rails, enabling the panel to transition between flat and curved states while maintaining structural stability during each state.
Solution Approach 2:
The support structure is segmented into multiple independent components including a base, multiple support arms, sliding blocks, and spring members. Each component performs a specific function: the base provides stability, support arms enable curvature adjustment, sliding blocks control movement, and spring members provide restoring force. This segmentation allows the system to achieve both stability and curvature adaptability.
2Adaptability or versatility
If a complex curvature adjustment mechanism is added, then curvature change capability is improved, but device complexity increases
Solution Approach 1:
The support module employs spring members that automatically provide restoring force when the display panel changes curvature. The springs are pre-loaded and engage with the sliding blocks, enabling the system to self-adjust and maintain curvature without requiring complex active control mechanisms or additional actuators for each adjustment step.
Solution Approach 2:
The patent introduces sliding blocks as intermediary elements that mediate between the display panel and the support arms. These sliding blocks move along guide rails and interact with spring members, simplifying the force transmission mechanism and reducing the complexity of direct panel-to-support arm connections.
3Adaptability or versatility
If continuous curvature adjustment is implemented, then adaptability is improved, but power consumption increases
Solution Approach 1:
The curvature adjustment mechanism operates through periodic, discrete steps rather than continuous adjustment. The sliding blocks move along segmented guide rails with predetermined positions, and the spring members engage at specific intervals. This periodic action reduces the need for continuous power input while maintaining adaptability across multiple curvature states.
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 the display panel to be freely curved or flattened with a predetermined curvature, enhancing flexibility and reducing power consumption.
Implementation Method 1
an elastic member having a first side supported by the wing brackets and a second side supported by the wings to push the wings in one of moving directions of the moving block
Data Source
AI summary
A display device is provided. The display device includes: a flexible display panel; a flexible plate disposed at a rear of the display panel and coupled to the display panel; a driving module disposed at a rear of the plate and including a moving block that moves in a reciprocating motion on the lead screw by rotation of the lead screw; wings elongated with a first end coupled to the moving block and a second end coupled to the rear of the plate, and having pivot shafts disposed adjacent to the first end between the first end and the second end; wing brackets connected with the pivot shafts and fixed to the rear of the plate; and an elastic member having a first side supported by the wing brackets and a second side supported by the wings to push the wings in one of moving directions of the moving block.