Sliding Housing Gear Layout for Thin Flexible Display Devices
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The challenge in flexible displays is the increase in thickness due to the size of the driving module, which includes a motor and transmission gear, necessitating an optimized arrangement structure to minimize the overall thickness of the electronic device.
Innovation Solution
The electronic device incorporates a first housing with a second housing that moves relative to it, featuring a motor-driven gear system with a rack gear and supporting member, allowing the display to expand or contract while maintaining space for other components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the driving module size is increased to provide sufficient driving force for housing movement, then the driving force is improved, but the thickness of the electronic device increases unnecessarily
Solution Approach 1:
The rack gear is disposed perpendicular to the display surface, changing the traditional parallel arrangement. This dimensional change allows the driving module to be arranged in the thickness direction rather than the lateral direction, providing sufficient driving force while minimizing the increase in device thickness.
Solution Approach 2:
The driving module is segmented into distinct components (motor, driving gear, rack gear, transmitting gear) arranged in a specific spatial configuration. The motor is disposed in the first housing while the rack gear is on the second housing, allowing efficient space utilization and force transmission without increasing overall thickness.
2Length of stationary object
If the driving module components are arranged to minimize thickness, then the device thickness is reduced, but the space for other components may be insufficient
Solution Approach 1:
By disposing the rack gear perpendicular to the display and arranging driving components in the thickness direction, the patent creates efficient vertical space utilization. This allows the driving module to occupy the thickness dimension while leaving lateral space available for other components.
Solution Approach 2:
The driving module components are nested within the housing structure - the motor in the first housing and the rack gear on the second housing - allowing compact arrangement that minimizes thickness while providing adequate space for all components.
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 provides sufficient driving force for housing movement while optimizing space utilization, ensuring a compact form factor for the electronic device.
Implementation Method 1
a motor disposed in the first housing and configured to provide a driving force to the second housing
Implementation Method 2
a driving gear coupled to the motor to be rotatable with respect to the motor, and at least one transmitting gear engaged with the driving gear to be rotatable with respect to a rotation axis perpendicular to a rotation axis of the driving gear by rotation of the driving gear
Implementation Method 3
a rack gear disposed on the second housing and being moved by rotation of the at least one transmitting gear
Data Source
AI summary
An electronic apparatus according to an embodiment comprises a first housing, a second housing, a display, a motor disposed in the first housing and providing the second housing with a driving force, a driving gear coupled to the motor, at least one transmitting gear which is engaged with the driving gear so as to be rotatable about a rotary shaft that is perpendicular to the rotary shaft of the driving gear according to the rotation of the driving gear, and a rack gear which is moved according to the rotation of the at least one transmitting gear, wherein the rack gear comprises a plurality of teeth engaged with the at least one transmitting gear, and has a gear surface facing a direction perpendicular to a direction in which one surface of the second housing faces.