Flexible Display Panel Curvature Control via Wing Bracket Linkage
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Solution Overview
Problem
Existing display devices with OLED panels lack the ability to freely change curvature, and there is a need for a mechanism that allows for flexible and constant curvature adjustment.
Innovation Solution
A display device comprising a flexible display panel, a bottom cover, a driving module with a moving block, and wing brackets connected by wings that pivotally couple to a wing bracket, allowing for reciprocal movement and controlled curvature changes through a mechanism involving a flexible main frame, side bracket, and pivotally connected wings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a fixed curvature structure is used for the display panel, then structural stability is improved, but flexibility and adaptability are worsened
Solution Approach 1:
The patent implements a dynamic curvature adjustment mechanism where the display panel can transition between different curvature states (flat, curved, folded) through a driving module. The wing bracket and moving block enable controlled movement of the support plate, allowing the display panel to dynamically change its curvature radius according to operational needs, thus resolving the contradiction between structural stability and curvature flexibility.
2Adaptability or versatility
If a mechanism for free curvature change is introduced, then adaptability is improved, but device complexity increases
Solution Approach 1:
The support structure is segmented into multiple functional components: a support plate, a wing bracket with pivot points, and a moving block with lead screw mechanism. This segmentation allows each component to perform a specific function (support, pivot, drive), enabling free curvature adjustment while keeping the overall mechanism manageable through modular design.
Solution Approach 2:
The patent employs curved surfaces and rotational joints (pivot points) in the mechanism design. The wing bracket rotates about pivot points to change the curvature of the display panel, and the lead screw mechanism converts rotational motion into linear motion for precise curvature control. This use of curvature and rotation simplifies the mechanism compared to linear actuation systems.
3Reliability
If constant curvature is maintained during operation, then display quality is improved, but power consumption increases
Solution Approach 1:
The driving module uses periodic rotational action of the lead screw to adjust the curvature radius. Once the desired curvature is achieved, the system can maintain that position with minimal energy input, as the mechanical structure holds the curvature through its geometric constraints rather than requiring continuous power input to maintain the shape.
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 with a constant curvature, enhancing flexibility and reducing power consumption by optimizing the power transmission and curvature control mechanism.
Implementation Method 1
a lead screw inserted into the moving block; a first end of the lead screw rotates together with the driving gear, and a second end of the lead screw protrudes from the moving block in a direction towards the display panel
Implementation Method 2
an elastic member inserted between the moving block and the display panel
Implementation Method 3
a wing elongated with a first end fixed to the moving block and a second end coupled to the bottom cover, the wing pivotally connected to the wing bracket between the first end and the second end
Data Source
AI summary
A display device is provided. The display device includes: a flexible display panel; a bottom cover disposed at a rear of the display panel and coupled to the display panel; a driving module disposed at a rear of the bottom cover and including a moving block that makes a reciprocal movement; a wing bracket fixed to the rear of the bottom cover at a position adjacent to the driving module; and a wing elongated with a first end fixed to the moving block and a second end coupled to the bottom cover, the wing pivotally connected to the wing bracket between the first end and the second end.