Rollable Vehicle Display Layers With Interlocking Rigidity
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Solution Overview
Problem
Existing flexible display devices lack sufficient rigidity when used in vehicles, particularly during movement and operation by users, as they tend to bend or separate due to applied forces.
Innovation Solution
A display device comprising flexible layers with interlocking structures and reinforcement materials that engage behind each other, preventing separation and elongation, ensuring rigidity through complementary geometric shapes and reinforcement materials extending along and perpendicular to the layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If flexible layers are used to enable rolling storage, then the display device can be stored in a compact position, but the display device lacks sufficient rigidity in the operating position
Solution Approach 1:
The display device is divided into multiple flexible layers (first flexible layer, second flexible layer, third flexible layer) that can be independently rolled and stored. Each layer contains display elements or supporting structures, allowing the device to be segmented for compact storage while maintaining functional integrity when deployed
Solution Approach 2:
The patent employs composite material structures where flexible layers are combined with reinforcing elements. The first flexible layer contains a first reinforcing element, the second flexible layer contains a second reinforcing element, creating a composite structure that provides both flexibility for rolling and rigidity for display stability
2Ease of manufacture
If flexible layers are interconnected with mating structures, then the layers can be assembled together, but the display device remains flexible and bends under applied forces
Solution Approach 1:
The interconnection system is segmented into multiple mating structures distributed across different layers. The first mating structure connects the first and second flexible layers, while the second mating structure connects the second and third flexible layers. This segmentation allows easy assembly through sequential engagement while distributing mechanical loads to improve overall structural stability
Solution Approach 2:
The mating structures are integrated into composite layer assemblies where flexible materials are combined with reinforcing elements. This composite construction allows the mating structures to engage easily for assembly while the reinforcing elements prevent excessive bending and maintain structural stability under applied forces
3Strength
If reinforcement materials are added to prevent elongation, then the supporting structure gains rigidity, but the device complexity increases
Solution Approach 1:
Reinforcing elements are strategically placed within specific flexible layers rather than uniformly throughout the entire device. The first reinforcing element is located in the first flexible layer, and the second reinforcing element is located in the second flexible layer. This localized placement provides necessary rigidity resistance to elongation and bending while minimizing overall device complexity
Data Source
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AI summary
A display device (1) comprises a flexible first layer (10) comprising a first supporting structure (12) and at least one flexible electronic display screen element (11), and a flexible second layer (20) comprising a second supporting structure (22). A positioning device (50) is configured to move the first layer (10) and second layer (20) from respective separate storage positions towards each other into an operating position (OP), and brings first and second interlocking elements (121-12n, 221-22n) successively to one another into a mutual engagement, such that the first layer (10) and the second layer (20) are coupled to each other in the operating position (OP) by the first and second interlocking elements. When in mutual engagement, at least one of the first interlocking elements is configured to engage behind a respective one of the second interlocking elements. In addition, at least one of the first and the second supporting structures (12, 22) comprises at least one reinforcement material which is configured to prevent elongation of the respective supporting structure (12, 22) in a direction parallel to the respective layer (10, 20) in the operating position (OP) in a state when the display device (1) is operated by a user. As such, the display device (1) has improved rigidity in the operating position (OP).