Retractable Vehicle Display Foil Carrier for Vibration Stability
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Solution Overview
Problem
Flexible display foils in vehicles face instability during extended use due to vibrations, which can affect the stabilization of the display device.
Innovation Solution
An extendable and retractable display device with a flexible display foil and a flexible display foil carrier, stabilized by a motorically drivable actuator and guiding means, allowing for controlled deflection and retraction without winding, and optionally supported by telescopic actuators or supports, ensuring stability during vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flexible display foil is used in a vehicle, then the display can be extended and retracted, but the display foil becomes unstable during vibrations
Solution Approach 1:
The display system is divided into multiple segments: the flexible display foil, the display foil carrier, and the actuator system. This segmentation allows each component to perform its specific function - the carrier provides structural support while the foil remains flexible for extension and retraction.
Solution Approach 2:
The display foil carrier is made from a composite material structure combining rigid and flexible elements. The carrier itself is rigid to provide stability during vibrations, while the connection to the flexible display foil allows the foil to extend and retract without compromising the overall stability of the system.
2Area of stationary object
If the display foil is extended, then the display surface is visible, but the display foil becomes vulnerable to vibrations and instability
Solution Approach 1:
The display foil carrier acts as a counterbalancing structure that compensates for the flexibility of the display foil. When the foil is extended, the rigid carrier provides counter support that neutralizes the destabilizing effect of vibrations, maintaining reliability while the full display surface is visible.
3Ease of operation
If the display foil is made flexible for retraction, then it can be stowed away, but it loses structural stability
Solution Approach 1:
The solution moves the structural stability function from the two-dimensional flexible foil to a three-dimensional carrier structure. The carrier provides the necessary structural strength and stability in the extended state, while the flexible foil maintains its ability to retract, effectively separating these two requirements into different spatial and functional dimensions.
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 provides stable display operation during vibrations by maintaining the display foil's stability in the extended state, preventing damage and ensuring smooth retraction and extension.
Implementation Method 1
at least one motorically drivable, length-variable actuator having a first end supported in and/or on the housing and a second end to which the upper end portion of the display foil carrier is attached
Implementation Method 2
a guiding means in the housing for guiding the display foil and the display foil carrier in at least a partial area of their main portions along a radius of curvature of less than 180 degrees or less than 135 degrees or less than 90 degrees
Implementation Method 3
the upper end portion of the display foil carrier abuts against the upper end portion of the display foil and is stiffened
Data Source
AI summary
The extendable and retractable display device is provided with a flexible display foil which is stiffened by a flexible display foil carrier. The display foil and the display foil carrier can be moved into a housing and back out of this housing by being bent. This is implemented by means of at least one actuator, the lower end of which is supported in the housing and the upper end of which is connected to the upper end of the display foil carrier. The housing comprises a guiding means for deflecting the display foil and the display foil carrier when retracting and extending the display.