Vehicle Rollable Display Support Structure Against Vibration and Pressing
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Solution Overview
Problem
Rollable displays for vehicles are prone to breakage due to vibrations and pressing forces during vehicle operation, necessitating an increase in stiffness to enhance durability.
Innovation Solution
A rollable display device for vehicles incorporates a housing with a roller part and a display panel that includes a display roller and a support roller, both rotated in opposite directions to wind or unwind the screen and support parts, featuring protrusions and wing parts to prevent depression and bending, using high-strength and high-elasticity materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a rollable display is applied to a vehicle AV system, then the display can be implemented with flexible plastic substrate for portability and durability, but the display becomes easily broken by vibration and pressing force during vehicle operation
Solution Approach 1:
The support part is divided into multiple horizontal support bars and vertical support bars that are spaced apart from each other. This segmentation provides distributed support across the display panel, preventing localized deformation from pressing forces while maintaining overall flexibility of the rollable display structure.
Solution Approach 2:
The display panel combines a flexible plastic substrate with a rigid support part consisting of multiple support bars. This composite structure integrates the flexibility of plastic material with the stiffness of support bars, enabling the display to resist vibration and pressing forces while maintaining its rollable capability.
2Reliability
If the stiffness of the rollable display is increased to prevent breakage, then durability against vibration and pressing force is improved, but the flexibility and portability of the display is reduced
Solution Approach 1:
The support bars are strategically positioned at specific locations on the display panel where pressing forces are most likely to occur. The horizontal support bars are arranged in the top-to-bottom direction and vertical support bars in the left-to-right direction, providing localized reinforcement exactly where needed while leaving other areas flexible.
Solution Approach 2:
The support structure is designed to be dynamic rather than fully rigid. The multiple spaced support bars provide flexibility in terms of their ability to flex slightly under load, then return to their original position. This dynamic characteristic allows the display to maintain durability while preserving rollable flexibility.
Data Source
AI summary
A rollable display device for a vehicle may include: a housing forming a body of the rollable display device, and having a housing space formed therein; a roller part rotatably housed in the housing space; and a display panel wound around the roller part or unwound from the roller part, according to the rotation direction of the roller part. The display panel may include: a screen part configured to receive an output signal from the outside, and output various pieces of information; and a support part disposed on a rear surface of the screen part, and configured to support the screen part in a horizontal direction and a vertical direction.