Roll-Up Display Door Assembly With Anti-Sag Suspender
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Solution Overview
Problem
Display devices with flexible display panels experience sagging of doors that open and close an opening through which the panel passes, leading to a step difference between the door and the housing, which affects the device's unity and functionality.
Innovation Solution
A display device design incorporating a flexible display panel, a roller, a housing with an opening, and a door assembly, where a suspender is used to connect the door and housing, preventing sagging by maintaining alignment and sharing the weight load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a door is installed to open and close the opening through which the display panel passes, then the device can protect the display panel and improve functionality, but the door sags due to its own weight, creating a step difference with the housing
Solution Approach 1:
The suspender acts as a counterweight mechanism that supports the door's weight, preventing sagging. The elastic element stores potential energy when the door is closed and releases it to maintain the door in a horizontal position, counteracting the gravitational force causing sagging.
Solution Approach 2:
The door assembly transitions from a static rigid structure to a dynamic system with movable components. The suspender allows the door to move vertically while maintaining proper alignment, and the elastic element provides dynamic force adjustment to keep the door horizontal during operation.
2Area of stationary object
If the door is made longer to cover the opening, then protection and aesthetics are improved, but the door becomes more prone to sagging due to increased weight and length
Solution Approach 1:
The suspender with elastic element compensates for the increased weight of the longer door by providing continuous upward support force. The elastic element is pre-tensioned to counteract the gravitational force on the extended door structure, preventing sagging despite the increased length and weight.
Solution Approach 2:
The suspender acts as an intermediary mechanism between the door and the housing, absorbing the stress caused by the door's weight and length. It mediates the force distribution to prevent the door from sagging while still allowing it to open and close properly.
3Ease of manufacture
If the door is made thinner to reduce material usage and improve aesthetics, then ease of manufacture and appearance are improved, but the door becomes more flexible and prone to deformation
Solution Approach 1:
The suspender provides external support to compensate for the reduced inherent rigidity of the thinner door. By continuously supporting the door's weight, it prevents the thin door material from deforming or sagging under its own weight or external forces.
Solution Approach 2:
The suspender serves as a mediating structural element that provides the necessary support and stability that the thin door material lacks. It allows the door to be manufactured with thinner, more aesthetically pleasing material while maintaining functional integrity through the additional support mechanism.
Data Source
AI summary
A display device is disclosed. The display device of the present disclosure comprises: a flexible display panel; a roller that is elongated and rolls up or unrolls the display panel; a housing in which the roller is located and having an opening through which the display panel passes; and a door assembly which is coupled to the housing adjacent to the opening, and opens and closes the opening, wherein the door assembly comprises: a door for opening or closing the opening; and a suspender positioned between the housing and the door and having one end fixed to one of the housing and the door, and the other end movably coupled to the other one.