Slidable Display Device Roller Mechanism for Area Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional display devices lack a mechanism to adjust the display area effectively while maintaining stability and minimizing thickness, especially when the display panel needs to be bent or slid.
Innovation Solution
A slidable display device design featuring a display panel with a first area and a second area, where a plurality of rollers, including drive rollers, support rollers, and side support rollers, are used to adjust the display area by rotating the drive rollers, which stably transfers rotational force to the display panel, allowing the second area to be exposed or stored within the housing, thereby adjusting the display area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display panel is made slidable to adjust display area, then adaptability is improved, but device complexity increases due to multiple rollers and housing mechanisms
Solution Approach 1:
The display panel is divided into a first area (fixed) and a second area (movable), allowing independent control of display regions. The housing is segmented with an opening that accommodates the movable second area, enabling flexible display area adjustment while maintaining structural organization
Solution Approach 2:
The roller mechanism serves multiple functions: drive rollers provide rotational force for sliding, support rollers maintain panel position and prevent sagging, and side support rollers constrain lateral movement. This multi-functional design achieves complex functionality through coordinated simple components
2Volume of moving object
If the second area is bent to fit in the housing, then device thickness is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The second area of the display panel is designed to be bendable into a curved configuration that fits within the housing thickness constraints. This curvature allows the display to maintain a thin profile while remaining functional, transforming a flat panel into a space-efficient curved structure
Solution Approach 2:
The display panel utilizes flexible substrate materials that can change their physical state from flat to curved without damage. By changing the geometric parameters of the panel (from planar to bent), the device achieves reduced thickness while maintaining display functionality through material property optimization
3Ease of operation
If drive rollers are used to transfer rotational force, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The drive rollers are configured to rotate in response to user input (such as pushing or pulling the display panel), automatically transferring rotational force to move the second area. The system serves itself by converting user-applied force directly into panel movement through the roller mechanism, eliminating the need for complex motors or actuators
Solution Approach 2:
The drive rollers act as intermediaries between user input and panel movement. They receive rotational force from user interaction and transfer it to the display panel, enabling smooth and controlled sliding without requiring direct mechanical coupling or complex drive mechanisms
4Reliability
If multiple support rollers are added to stabilize the panel, then reliability is improved, but device complexity increases
Solution Approach 1:
Different types of rollers are positioned at specific locations to address local stability requirements: drive rollers at the leading edge for movement initiation, support rollers along the path to prevent sagging, and side support rollers at the edges to constrain lateral movement. Each roller type provides localized support tailored to specific stability needs
Solution Approach 2:
Multiple support functions are merged into a coordinated roller system where drive rollers, support rollers, and side support rollers work together as an integrated mechanism. This unified approach achieves comprehensive panel stabilization through the combined action of simpler individual roller 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
The solution enables stable sliding of the display panel, reduces the thickness of the display device, and allows for flexible adjustment of the display area without damaging the panel, enhancing user convenience and device stability.
Implementation Method 1
a rotational force provided by the plurality of drive rollers is stably (e.g., more stably) transferred to the display panel
Data Source
AI summary
A slidable display device in which a display panel includes a first area and a second area extending from the first area. A plurality of rollers are inside the housing, which includes an opening. The first area is exposed to the outside through the opening when the second area is stored in the housing. The second area is bent toward a lower portion the first area so as to be located between the plurality of rollers and a lower surface of the housing. The display panel is configured to slide by rotating the plurality of rollers such that the second area is exposed to the outside through the opening or introduced to the inside, and thereby, an area of the display area may be adjusted.