Flexible Display Curvature Variation Mechanism
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Solution Overview
Problem
Conventional flat display devices have limited field of view and require bulky installations to expand rotation range, making it inefficient to view images from beyond the conventional rotation range.
Innovation Solution
A display device with a flexible substrate and a curvature variation device that allows the display to bend towards the user, varying its curvature based on user input, enabling viewing from beyond the conventional rotation range without occupying excessive space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a rotating apparatus is used to expand the field of view, then the user can view images from different locations, but the rotation angle is limited by the distance between the wall and the display device
Solution Approach 1:
The display device transitions from a fixed rigid structure to a dynamically adjustable structure that can change its curvature. The curvature variation device allows the display surface to bend toward users at different locations, enabling the field of view to adapt dynamically without being constrained by fixed rotation angles or wall distance
Solution Approach 2:
The invention changes the curvature parameter of the display device to expand the field of view. By varying the curvature radius through the curvature variation device, the display can present images to users at different distances and angles, transforming the fixed geometric parameter into an adjustable one
2Adaptability or versatility
If the distance between the display device and the wall is increased to expand rotation range, then the rotation angle increases, but the space occupied during installation increases
Solution Approach 1:
Instead of expanding rotation range by increasing horizontal distance from the wall, the invention introduces curvature as an additional dimensional degree of freedom. The display bends toward users in a curved manner, utilizing the curvature dimension to achieve wider viewing coverage without increasing the horizontal installation footprint
Solution Approach 2:
The display device employs a flexible display substrate that can bend and curve. This flexibility allows the display to adapt its shape to reach users at different positions without requiring additional installation space, as the curvature adjustment happens within the existing form factor
3Adaptability or versatility
If a flexible display substrate is used to bend the screen toward users, then the field of view expands beyond conventional rotation range, but the device complexity increases
Solution Approach 1:
The curvature variation device is divided into multiple independent curvature variation units, each responsible for a specific region of the display. This segmentation allows localized curvature control and simplifies the overall system architecture by breaking down the complex curvature adjustment into manageable modular components
Solution Approach 2:
The curvature variation device serves multiple functions: it adjusts the field of view, adapts to different user positions, and maintains display stability. By designing a multi-functional system where the same mechanism handles various curvature adjustment needs, the overall device complexity is reduced despite the enhanced capabilities
Data Source
AI summary
A display device includes a flexible display substrate and a curvature variation device. The curvature variation device is disposed on a rear surface of the flexible display substrate. A length of the curvature variation device is varied in response to an operation of a user to the curvature variation device, to vary a curvature of the flexible display substrate.