Flexible Display Panel Winding Mechanism with Lead Screw Slider
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Solution Overview
Problem
There is a need for a stable mechanism to wind and unwind flexible display panels, which are increasingly used due to their thin and flexible characteristics, while also allowing for a frame structure that can be covered or opened.
Innovation Solution
A display device comprising a flexible display panel, a panel roller, a bottom frame, a first vertical frame, a lead screw, a support bar, and a slider that moves within the lead screw and support bar, allowing for the panel to be wound or unwound stably, with a motor and gearbox system for rotational force transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a flexible display panel is wound around a panel roller, then the display panel can be stored or transported in a compact form, but the mechanism for winding and unwinding becomes complex and requires precise control
Solution Approach 1:
The patent employs a dynamic control system that adjusts the rotational speed and direction of the panel roller based on real-time detection of the display panel's winding state. The controller dynamically modifies operational parameters to maintain stable winding without requiring overly complex mechanical structures, resolving the contradiction between compact storage and mechanism complexity.
2Reliability
If a mechanism is added to control the winding of the display panel, then winding stability is improved, but the device complexity increases
Solution Approach 1:
The patent incorporates a feedback control system where sensors detect the winding state and tension of the display panel, and the controller adjusts the panel roller's rotation accordingly. This closed-loop feedback mechanism ensures stable winding while keeping the control logic relatively simple, addressing the contradiction between reliability and device complexity.
Solution Approach 2:
The system is designed to automatically detect and adjust to the winding conditions without requiring complex external control mechanisms. The controller self-regulates the panel roller operation based on real-time feedback, achieving stable winding through automated self-adjustment rather than complex mechanical or manual control systems.
3Strength
If the frame structure is made rigid to support the panel roller, then structural strength is improved, but the frame cannot be easily covered or opened
Solution Approach 1:
The frame structure is divided into separable components including a cover frame and a main body frame that can be easily assembled and disassembled. The panel roller and support mechanisms are mounted on the main body frame, allowing the cover frame to be removed or opened without compromising the structural strength during operation, thus resolving the contradiction between strength and ease of operation.
Solution Approach 2:
The frame structure transitions from a static rigid design to a dynamic configuration where the cover can be moved between closed and open positions. The support bars and sliders enable the panel roller to be positioned and secured in different states, allowing the frame to maintain strength during winding operations while permitting easy opening and covering when not in use.
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
This solution enables stable winding and unwinding of flexible display panels and allows the frame structure to be easily covered or opened, enhancing the usability and functionality of flexible display devices.
Implementation Method 1
a first lead screw which is parallel to the first vertical frame, and rotatably coupled to the bottom frame; a first support bar located between the first vertical frame and the first lead screw; a first slider which moves in the first lead screw and the support bar, when the first lead screw rotates
Data Source
AI summary
Disclosed is a display device. The display device includes: a flexible display panel; a panel roller which extends long, and around which the display panel is wound, or from which the display panel is unwound; a bottom frame on which the panel roller is rotatably mounted; a first vertical frame which extends long in a direction intersecting a longitudinal direction of the panel roller, and is fixed to the bottom frame; a first lead screw which is parallel to the first vertical frame, and rotatably coupled to the bottom frame; a first support bar located between the first vertical frame and the first lead screw; a first slider which moves in the first lead screw and the support bar, when the first lead screw rotates; and a bar to which a distal end of the display panel is fixed, and which is coupled to the first slider.