Rollable Display Housing Door Control for Dust and Safe Lifting
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Solution Overview
Problem
Display devices face challenges in minimizing foreign substance penetration and ensuring stability and safety, particularly when rolled or unrolled around a roller.
Innovation Solution
A display device design featuring a housing with a rotatable roller, a lift module, and a door driving module that allows the display module to be lifted to various heights while the door moves to different open positions, minimizing interference and reducing foreign substance penetration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display module is rolled around a roller to enable flexible display, then the display device achieves ultra-thin profile and flexibility, but foreign substances can penetrate through the opening and stability is compromised
Solution Approach 1:
The door is advanced to a partial open position before the display module is fully unrolled from the roller. This preliminary action creates clearance space that prevents foreign substances from penetrating into the housing while maintaining the flexibility and ultra-thin profile of the display device.
Solution Approach 2:
The door driving module dynamically adjusts the door position based on the display module's unrolled state. The door can be positioned at different angles (partially open or fully open) depending on whether the display module is being unrolled or is in its extended state, thereby preventing foreign substance penetration while maintaining flexibility.
2Object-affected harmful factors
If the door is kept closed to prevent foreign substance penetration, then safety and cleanliness are improved, but the display module cannot be properly lifted or unrolled
Solution Approach 1:
The door is advanced to a partial open position before the display module unrolling operation begins. This preliminary action ensures that the door will not interfere with the display module being lifted or unrolled from the roller, while still providing protection against foreign substance penetration when the display module is in its retracted state.
Solution Approach 2:
The door position is dynamically adjusted based on the operational state of the display module. The door driving module receives control signals to position the door appropriately - partially open during unrolling operations and closed or partially open when the display module is retracted, thereby balancing protection and operational ease.
3Ease of operation
If the door is positioned to allow display module unrolling, then operational ease is improved, but foreign substance penetration increases and safety decreases
Solution Approach 1:
The door is advanced to a predetermined partial open position before the display module unrolling operation begins. This preliminary positioning ensures sufficient clearance for the display module to be unrolled without interference from the door, while still maintaining adequate coverage to prevent foreign substance penetration and ensure safety.
Solution Approach 2:
The door driving module dynamically positions the door based on the display module's state. When the display module is being unrolled or is in its extended state, the door is positioned at a partial open angle that allows operation while maintaining safety. When the display module is retracted, the door can be positioned more closed to enhance protection against foreign substances.
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 stable lifting of the display module without interfering with the door, reducing foreign substance penetration and enhancing safety by allowing the door to move to partial or maximum open positions based on the display module's height, thus preventing accidents.
Implementation Method 1
a liquid crystal composition for a liquid crystal display device, comprising a cyclic carboxylic acid ester compound, a cyclic carbonate compound, and a cyclic carboxylic acid anhydride compound
Implementation Method 2
having an aperture ratio of 85% or more and a response time of 5 milliseconds or less
Data Source
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AI summary
A display device includes a housing in which an opening is formed, a roller rotatably disposed in the housing, a display module rolled around the roller or unrolled from the roller, a lift module connected to the display module and lifting the display module through the opening, a door disposed in the housing and opening and closing the opening, and a door driving module disposed in the housing and connected to the door to move the door to a close position, a partial open position, or a maximum open position.