Slidable Flexible Display Device with Screw Rod Linkage
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Solution Overview
Problem
Current communication devices with small screens offer inferior user experiences for viewing movies, games, and mobile office tasks due to their rigid structure, which cannot be easily enlarged without increasing the device's overall size, affecting portability.
Innovation Solution
A slidable flexible display device that utilizes screw rod assemblies, linkage gear, and a roller mechanism to expand and retract a flexible display screen, allowing for adjustable screen size by sliding a part of the mechanism, enabling the screen to be unfolded or folded, and potentially driven by a motor for automatic operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the screen is forcibly enlarged to improve user experience, then the display size is increased, but the overall size of the mobile phone becomes larger, affecting portability
Solution Approach 1:
The patent applies a sliding mechanism that allows the second supporting body to move relative to the first supporting body along a straight line. This dynamic structure enables the display screen to extend beyond the original housing boundaries, increasing the effective display area while maintaining a compact form factor when retracted. The sliding mechanism is driven by screw rod assemblies that convert rotational motion to linear motion, allowing the screen to dynamically adjust its exposed length.
Solution Approach 2:
The patent implements a nested structure where the second supporting body containing the flexible display screen is housed within the first supporting body. When not in use, the extended display portion retracts into the original housing, similar to a nested doll structure. This allows the device to maintain a compact size while providing the option to extend the display area when needed.
2Adaptability or versatility
If a flexible display screen is used to enable size adjustment, then the display size becomes variable, but the device complexity increases due to additional mechanisms
Solution Approach 1:
The patent divides the display device into two main supporting bodies: the first supporting body containing the housing and basic components, and the second supporting body containing the flexible display screen. This segmentation allows the display portion to be independently controlled and moved, enabling variable display size while keeping the overall structure modular and manageable.
Solution Approach 2:
The patent replaces complex mechanical linkages with screw rod assemblies that convert simple rotational motion into precise linear motion. The screw rods are driven by motors, substituting complex multi-component mechanical systems with a more streamlined electromechanical system that reduces the number of parts while achieving the same functional result of extending and retracting the display.
3Manufacturing precision
If screw rod assemblies and linkage gear are used to control screen movement, then the screen can be precisely positioned, but the manufacturing complexity increases
Solution Approach 1:
The patent introduces linkage gears as intermediary components that connect the screw rods to the second supporting body. These gears act as mediators that translate the rotational motion of the screw rods into controlled linear motion of the display assembly. The linkage gears provide mechanical advantage and precise motion control while simplifying the force transmission path, making the system easier to manufacture compared to direct-drive mechanisms.
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
Enables a larger screen size to be achieved without increasing the device's overall size, enhancing user experience while maintaining portability, and allows for automatic switching between unfolded and folded states through electric operation.
Implementation Method 1
each of the screw rod assemblies includes a first screw rod and a second screw rod disposed in parallel, the first screw rod and the second screw rod are rotatable and are connected to each other
Implementation Method 2
surfaces of the first screw rod and the second screw rod include rotating threaded structures
Implementation Method 3
the roller is disposed close to an arc-shaped end of the second rear shell and is clamped between both the side walls, the roller is rotatable
Implementation Method 4
at least an end of the first screw rod or an end of the second screw rod of the screw rod assemblies is connected to a linkage gear to make the first screw rod and the second screw rod keep in linkage
Data Source
AI summary
The present application discloses a slidable flexible display device, including a first supporting body, a second supporting body, and a linkage mechanism. The first supporting body includes a first rear shell and a rear shell disposed on the first rear shell. The first supporting body and the second supporting body are slidable along a straight line between the first supporting body and the second supporting body. The linkage mechanism includes screw rod assemblies and a screen fixing plate. The first supporting plate and the screen fixing plate are respectively linked to the screw rod assemblies.