Flexible Display Support Structure Anisotropic Stiffness
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Solution Overview
Problem
Flexible display devices struggle to maintain a flat display effect due to their rollable nature, which affects the display quality when the screen component is in a developed state.
Innovation Solution
A flexible display device with a support structure that provides different stiffness in two directions: a lower stiffness in the direction of curling to facilitate easy curling, and a higher stiffness perpendicular to the curling direction to maintain flatness and improve display stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the screen component is made rollable for flexibility, then the ease of operation is improved, but the display stability deteriorates
Solution Approach 1:
The support structure employs different stiffness characteristics in different directions: it has low stiffness in the first direction (curling direction) to facilitate easy curling, while having high stiffness in the second direction (perpendicular to curling) to maintain display stability and flatness during use.
Solution Approach 2:
The support structure is divided into multiple support members distributed in the first direction, with flexible polymeric material filling the gaps between them. This segmentation allows the structure to provide directional stiffness while maintaining flexibility in the curling direction.
2Adaptability or versatility
If the screen component is made rollable for flexibility, then the adaptability is improved, but the manufacturing precision deteriorates
Solution Approach 1:
The support structure provides localized support at specific positions (through distributed support members) rather than uniform support across the entire screen. This localized approach maintains flatness where needed while allowing flexibility in the curling direction.
Solution Approach 2:
The support structure combines rigid support members (made of steel, titanium alloy, aluminum alloy, glass, carbon fiber, or glass fiber) with flexible polymeric material in a composite configuration. This composite structure achieves both flexibility for rolling and precision for maintaining flatness during display.
3Ease of operation
If the screen component is made rollable for flexibility, then the ease of operation is improved, but the display effect deteriorates
Solution Approach 1:
The support structure provides different mechanical properties in different directions: softness in the curling direction for ease of operation, and rigidity in the perpendicular direction to maintain flatness and display quality when the screen is in use.
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 flexible display device achieves both easy curling and stable flat display, enhancing the overall display effect and usability by maintaining the screen's flatness during use.
Implementation Method 1
The flexible display device has different stiffness in a first direction and in a second direction. The first direction is a direction in which the screen component curls up, and the second direction is perpendicular to the first direction.
Data Source
AI summary
One or more embodiments of the description relates to a flexible display device and a display system. The flexible display device includes: a screen component and a support structure disposed on the screen component. The flexible display device has different stiffness in a first direction and in a second direction. The first direction is a direction in which the screen component curls up, and the second direction is perpendicular to the first direction.