Foldable Display Airbag Flatness Control
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Solution Overview
Problem
Current flexible display devices face challenges in maintaining flatness when unfolded and fail to combine the functionalities of smart watches, mobile phones, and tablets in a portable and multi-scenario capable device.
Innovation Solution
A foldable flexible display device with multiple display sub-portions, supporting airbags, and switching valves, where airbags are connected to inflating devices to maintain flatness and include detachable snaps for adjustable sizing, allowing for a combination of display functions in a single device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If flexible display screens are used to create foldable devices, then portability and multi-functionality are improved, but flatness is lost when unfolded
Solution Approach 1:
The display screen is divided into multiple independent display sub-portions (first, second, third, etc.) that can be folded along folding axes. Each sub-portion has its own supporting airbag, allowing independent control of flatness in different sections while maintaining overall flexibility and portability.
Solution Approach 2:
Supporting airbags are introduced as pneumatic structures to maintain the flatness of display sub-portions when unfolded. The airbags can be inflated to push the display screen into a flat state, and deflated to allow folding, thus resolving the contradiction between flatness and flexibility.
2Ease of operation
If multiple display sub-portions are connected with folding axes, then portability is improved, but device complexity increases
Solution Approach 1:
Multiple display sub-portions are merged into a single integrated flexible display device with shared structural elements. The folding axes connect sub-portions in a coordinated manner, and the airbag system is integrated across sub-portions, reducing overall complexity compared to separate devices.
Solution Approach 2:
The device employs dynamic folding mechanisms along folding axes that allow the display to transition between folded and unfolded states. The supporting airbags provide dynamic adjustment of flatness, enabling the device to adapt its shape for portability while maintaining structural integrity.
3Shape
If supporting airbags are added to maintain flatness, then manufacturing complexity increases
Solution Approach 1:
The supporting airbags are implemented as thin, flexible membranes that can be integrated into the display structure. These thin-film airbags are easier to manufacture and integrate compared to rigid support structures, allowing flatness maintenance without excessive manufacturing complexity.
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 enables a flexible display device that maintains flatness in the unfolded state and allows for adjustable sizing, combining the functionalities of smart watches, mobile phones, and tablets in a portable format, enhancing user experience across various scenarios.
Implementation Method 1
a non-light-exiting surface of each of the plurality of display sub-portions is provided with one of the plurality of supporting airbags; and a switching valve provided between every two adjacent ones of the plurality of supporting airbags. And at least one of the plurality of supporting airbags is connected to an inflating device
Data Source
AI summary
A foldable flexible display device is provided. The display device includes a flexible display screen including a plurality of display sub-portions and supporting airbags. Every two adjacent supporting airbags have a folding axis therebetween. A non-light-exiting surface of each display sub-portion is provided with a supporting airbag. A switching valve is provided between two adjacent supporting airbags, and at least one supporting airbag is connected to an inflating device. When the flexible display screen is in a completely unfolded state, the switching valve is opened in such a manner that the inflating device inflates the supporting airbag.