Flexible Display Telescopic Assembly for Screen Skew Control
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Solution Overview
Problem
Flexible screens in rollable display devices are prone to skew or jam during stretching or receiving, affecting their reliability and usability.
Innovation Solution
A flexible display device with a telescopic assembly and transmission mechanism that synchronizes the movement of support portions and rotation of a rotary receiving portion, using a screw rod structure and gear system to uniformly distribute force, preventing damage and enabling seamless switching between large and small sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the flexible screen is stretched or received in a rollable display device, then the display size can be changed between large and small, but the flexible screen is prone to skew or jam during the process
Solution Approach 1:
The patent introduces a transmission assembly as an intermediary mechanism between the telescopic assembly and the flexible screen. This transmission assembly includes transmission members that mediate the force transmission, ensuring uniform force distribution across the flexible screen during stretching and receiving operations, thereby preventing skew and jam while enabling display size adjustment
Solution Approach 2:
The patent employs a telescopic assembly with movable connection structures that maintain equipotential force distribution along the flexible screen during extension and retraction. The telescopic mechanism ensures that force is uniformly distributed across all parts of the screen, preventing localized stress concentration that would cause skew or jam
2Area of moving object
If the flexible screen is stretched for large-size display, then the display area increases, but the device occupies more space when not in use
Solution Approach 1:
The patent implements a telescopic assembly structure where the support portions can be extended or retracted like nested dolls. When not in use, the telescopic assembly retracts to minimize the device volume, allowing the flexible screen to be stored in a compact state. When needed, the assembly extends to provide large display area, achieving space-efficient storage and deployment
3Reliability
If a transmission assembly is added to drive the rotary receiving portion, then the force distribution is improved, but the device complexity increases
Solution Approach 1:
The transmission assembly in the patent is designed with multi-functional transmission members that serve multiple purposes: they drive the rotary receiving portion, distribute force uniformly across the flexible screen, and coordinate with the telescopic assembly. This universal design achieves improved force distribution while minimizing the addition of separate components, thereby limiting the increase in device complexity
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
The solution improves the reliability and flexibility of the display device by uniformly distributing force, preventing damage to the flexible screen and enabling rapid switching between portable and large-size display states.
Implementation Method 1
the first transmission member includes a screw rod structure disposed on the second support portion
Implementation Method 2
a first transmission gear and a second transmission gear respectively disposed at two ends of the screw rod, and the first transmission gear is drivingly connected to the rotary receiving portion
Data Source
AI summary
The present disclosure discloses a flexible display device. The flexible display device includes a housing, a telescopic assembly, a flexible screen, and a transmission assembly. Both ends of the flexible screen are connected to the telescopic assembly. The transmission assembly is configured to drive, during the movement relative to the housing, the telescopic assembly to stretch or contract. In this way, the flexible screen is pulled out or rolled for storage.