Expandable Display Strips Gear Rack Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wearable devices, such as smartwatches, face limitations in display size and interaction due to fixed, flat displays, which restrict the type and amount of content that can be displayed, and flexible displays that can be curved to fit a user's wrist are not widely adopted.
Innovation Solution
A wearable device with expandable display strips featuring concentrically arranged layers and a gear and rack mechanism that allows each layer to extend and retract, increasing or decreasing the effective display area based on content or user input, enabling dynamic adjustment of the display area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If a fixed, flat display is used in a wearable device, then the device structure is simple and easy to manufacture, but the display size is limited and content interaction is restricted
Solution Approach 1:
The display structure transitions from a fixed, static configuration to a dynamic, adjustable one. The display panel can expand and retract along the wrist circumference, allowing the display area to change based on content needs and user interaction requirements, thereby resolving the contradiction between limited display area and structural simplicity.
Solution Approach 2:
The display structure is divided into multiple segments or layers that can independently move relative to each other. This segmentation allows the display to expand by unfolding additional layers or contracting to a compact form, enabling variable display area without requiring a completely complex reconfigurable structure.
2Adaptability or versatility
If a flexible display is curved to fit the user's wrist, then the display adapts to the wrist shape, but the display size and interaction capability are still limited
Solution Approach 1:
The flexible display maintains its curved adaptation to the wrist while gaining dynamic expansion capability. The display can extend along the wrist circumference when needed, providing both wrist conformability and increased display area, thus resolving the contradiction between adaptability and area limitation.
3Area of moving object
If the display area is expanded on a wearable device, then more content can be displayed, but the device size and comfort may be compromised
Solution Approach 1:
The display structure allows the user to dynamically adjust the display area based on content needs. When full display area is not required, the display can contract to a smaller, more comfortable form factor that does not compromise wearing comfort, thus resolving the contradiction between expandable display area and comfort.
Solution Approach 2:
The display expansion is localized to specific regions along the wrist circumference rather than uniformly increasing the entire device size. This allows the display area to be expanded only where needed for content display, while maintaining a compact and comfortable form factor in other areas of the wearable device.
Data Source
AI summary
An apparatus for a wearable device with expandable display strips, the apparatus includes a first layer with a first display panel coupled to a second layer with a second display panel, where the first display panel can extend and retract over a top surface of the second display panel. The apparatus also includes a first gear and rack mechanism coupled to the top surface of the second display panel and a bottom surface of the first display panel, where the first gear and rack mechanism is configured to extend and retrack the second layer with the second display relative to the first layer with the first display. Furthermore, the first layer and the second layer are arranged in a concentric manner.