Dual Display Device with Movable Second Screen
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Solution Overview
Problem
Portable consumer electronic devices with smaller displays face challenges in providing an enhanced viewing experience for graphical content, as they often have limited screen real estate and cannot efficiently utilize multiple displays to offer expanded or cooperative viewing configurations.
Innovation Solution
A portable handheld device with a dual-display configuration, where a second display is moveable relative to a first display, allowing for both displays to be used cooperatively in an expanded viewing position, with a controller managing the content display across both screens to enhance visibility and usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If a portable handheld device uses a single display, then the device maintains a compact and portable form factor, but the viewing area and display real estate are limited
Solution Approach 1:
The display system is divided into two separate displays: a first display integrated into the main device body and a second display housed in a separate movable display case. This segmentation allows the viewing area to be effectively doubled when both displays are visible, while maintaining the portability of the overall system through modular design.
Solution Approach 2:
The second display case is designed to be movable relative to the first display case, transitioning between a closed position (hiding the second display) and an open position (revealing the second display). This dynamic configuration allows the device to adapt its display area based on user needs while maintaining a compact form when portability is the priority.
2Ease of operation
If a portable device has smaller display size to maintain portability, then the device remains handheld-friendly, but the graphical content viewing experience is compromised
Solution Approach 1:
By segmenting the display into two separate display units, the system provides a larger total viewing area when both are visible, while each individual display can remain relatively small and lightweight, maintaining the handheld-friendly characteristic of portable devices.
Solution Approach 2:
The system transitions from a single二维 display plane to a three-dimensional configuration where the second display can be positioned adjacent to or above the first display when the display case is open, effectively adding a spatial dimension to the viewing experience and increasing total display area without requiring each individual display to be large.
3Area of stationary object
If multiple displays are used to expand viewing area, then the display real estate increases, but the device complexity and structural configuration become more complex
Solution Approach 1:
The movable display case serves multiple functions: it houses the second display, provides structural support, and acts as a protective cover when closed. This multi-functionality reduces the need for additional separate components, thereby managing complexity while achieving expanded display real estate.
Solution Approach 2:
The second display is nested within the movable display case, which itself is separate from but integrates with the first display case. This nested arrangement allows the additional display functionality to be contained within a compact structure, minimizing the increase in overall device complexity while still providing expanded viewing area when activated.
Data Source
AI summary
Some embodiments provide portable handheld devices comprising: first and second displays; a controller; and a first display casing secured within the first display and a second display casing secured within the second display, the second display casing is moveable to move between closed and an open positions; wherein, when in the closed position, at least a majority of the second display is not visible; wherein, when in the open position, both the first display and the second display are visible and configured to display the graphical content; and wherein the controller is configured to cooperatively utilize both the first display and the second display when in the open position such that the graphical content is cooperatively displayed on both the first display and the second display.