Roller Motor Integration for Compact Rollable Display Volume
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Solution Overview
Problem
Conventional rollable display devices face challenges in spatial utilization and volume minimization due to separate spaces required for the motor and roller parts, leading to increased overall volume and difficulty in ensuring efficient winding and unwinding operations.
Innovation Solution
The integration of a motor and tape spring mechanism within the roller part, where the tape spring is used to move the display in an upward/downward direction, allowing the roller and motor to occupy the same space, thereby minimizing operational space and improving spatial utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the motor and roller parts are disposed in separate spaces, then the winding and unwinding operations can be performed, but the overall volume increases and spatial utilization decreases
Solution Approach 1:
The patent combines the motor and roller parts into the same spatial region by integrating the motor within the roller structure. The motor is positioned inside the roller housing, allowing the roller to rotate around the motor assembly, thereby merging two previously separate components into a compact integrated unit that reduces overall volume while maintaining functional reliability
Solution Approach 2:
The motor is nested within the roller housing structure, with the roller rotating around the motor assembly. This nesting arrangement allows the motor to be contained within the spatial envelope of the roller, maximizing space utilization and minimizing the overall volume occupied by the winding mechanism
2Volume of moving object
If the motor is integrated within the roller part, then spatial utilization is improved and volume is minimized, but the complexity of the roller structure increases
Solution Approach 1:
The roller housing serves multiple functions: it acts as the structural container for the motor, provides the rotating element for winding operations, and houses the tape spring mechanism. This multi-functionality reduces the need for separate dedicated components, thereby minimizing volume while managing structural complexity through functional integration
3Volume of moving object
If separate spaces are allocated for motor and roller, then maintenance and operation are easier, but the operational space volume increases
Solution Approach 1:
While integrating the motor within the roller housing, the patent maintains functional segmentation by keeping the motor, roller, and tape spring as distinct operational components. This allows the motor to be independently serviced or replaced while maintaining its integrated position within the roller assembly, balancing compactness with maintainability
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
This configuration reduces the operational space required for the display device, enhances spatial utilization, and minimizes the volume of the roller part, ensuring smooth and efficient winding and unwinding operations while maintaining display functionality.
Implementation Method 1
a tape spring configured to move the display in an upward/downward direction in conjunction with an operation of the roller
Data Source
AI summary
A display device includes a display part including a display panel for displaying an image, a roller part configured to wind or unwind the display part, and a tape spring configured to move the display part in an upward and/or downward direction in conjunction with an operation of the roller part, and the roller part includes: a motor; a tape spring drum configured to accommodate the motor and connected to the motor, the tape spring drum being configured such that one end of the tape spring is fixed to the tape spring drum, and the tape spring drum winds or unwinds the tape spring; a tape spring casing configured to accommodate the tape spring drum and the tape spring; and a plurality of roll drums connected to two opposite sides of the motor.