Rollable Display Support Structure for Smooth Sliding Expansion
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Solution Overview
Problem
The operation of opening or closing the display in rollable electronic devices can be rough due to applied pressure, leading to deformation or damage of the display.
Innovation Solution
A rollable electronic device design that includes a display structure with a fixed and expandable exposure area, supported by housings and a tension transmitting member, which allows for smooth opening and closing by controlling the tension and sliding motion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If pressure is applied to the display during opening or closing operations, then the display can be moved between retracted and extended positions, but the operation becomes rough and the display may deform or damage
Solution Approach 1:
A tension transmitting member is introduced as an intermediary element between the display and the driving mechanism. This member transmits tension forces smoothly to move the display between retracted and extended positions without direct pressure application, preventing deformation and damage while enabling reliable operation.
2Area of moving object
If the display is extended to provide larger viewing area, then more content can be displayed, but the device requires more space and complex structural support
Solution Approach 1:
The housing is divided into a first housing and a second housing that can slide relative to each other. The display is segmented into a fixed exposure area supported by the first housing and an expandable exposure area supported by the second housing. This segmentation allows the display area to be extended when needed while maintaining a compact form when retracted, reducing the complexity of continuous structural support.
Solution Approach 2:
The second housing is designed to slide relative to the first housing, creating a dynamic structure that can adapt between extended and retracted states. This dynamic configuration allows the display exposure area to change size based on operational needs without requiring a permanently complex support structure.
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 ensures a stable sliding operation, preventing deformation or damage to the display, and allows for efficient spatial use while maintaining smooth opening and closing operations.
Implementation Method 1
a tension transmitting member, a first end of which is connected to one side of the display structure, and a second end of which is connected to one side of the first housing
Data Source
AI summary
A rollable electronic device includes a display structure including a display area, a first housing fixed to the display structure, a second housing slidable with respect to the first housing and the display structure, a sliding driver which is in the first housing, and a tension transmitting member which is windable at the sliding driver, the tension transmitting member including a first end connected to the display structure and a second end connected the first housing. An opening operation includes the second housing sliding away from the first housing, expanding the display area, and the sliding driver winding the first end of the tension transmitting member, in a first rotational direction, and a closing operation includes the second housing sliding toward the first housing, contracting the display area, in the opening operation, the sliding driver winding the second end of the tension transmitting member, in a second rotational direction.