Portable Phone Screen-Mirroring Display with Dual Wireless Links
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Solution Overview
Problem
Smartphones face challenges in meeting specific use case requirements due to their multipurpose design, such as inadequate screen size for large-screen viewing, difficulty in using high-performance rear cameras while monitoring the shot during live streaming or self-portraits, and the high cost of external webcams.
Innovation Solution
A portable mobile phone screen-mirroring display that wirelessly connects to a smartphone to function as a viewing or shooting monitor, utilizing a processor module, Wi-Fi and Bluetooth modules for independent signal transmission, and includes a magnetically attachable back cover for camera use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If smartphone screen size is increased for large-screen viewing, then viewing experience is improved, but portability and device dimensions worsen
Solution Approach 1:
The system divides the smartphone functionality into two separate components: the smartphone itself (control unit) and an external display device (display unit). This segmentation allows the display function to be separated from the processing function, enabling large-screen viewing without increasing smartphone dimensions while maintaining portability through wireless connection.
Solution Approach 2:
The solution transitions from a single-device architecture to a multi-device distributed architecture, adding the dimension of spatial separation between control and display functions. The external display unit provides large-screen capability in a different spatial location, resolving the contradiction between screen size and portability.
2Ease of operation
If external webcams are used for live streaming or self-portraits, then monitoring capability is improved, but cost and device complexity worsen
Solution Approach 1:
The external display unit is designed with multi-functionality, serving both as a large-screen display for video viewing and as a monitoring device for live streaming and self-portraits. By using the smartphone's existing rear camera and displaying its feed on the external screen, the system eliminates the need for separate webcams while providing monitoring capability through the display's touchscreen interface.
Solution Approach 2:
The system utilizes the smartphone's own rear camera for monitoring purposes during live streaming and self-portraits, rather than requiring an external monitoring device. The display unit simply showcases the camera feed that the smartphone already captures, allowing the smartphone to serve its own monitoring needs through the external display connection.
3Ease of operation
If phone is handed over for outdoor video viewing, then viewing convenience is improved, but control and safety worsen
Solution Approach 1:
The system separates the viewing function from the control function by connecting the smartphone to an external display device. The parent retains control of the smartphone while the child uses the external display for viewing. This segmentation allows the viewing device to be physically separated from the control device, enabling supervised outdoor viewing without transferring the phone.
Solution Approach 2:
The external display unit acts as an intermediary between the smartphone and the viewer. It receives video signals from the smartphone and displays them independently, allowing the viewer to see content without having direct access to or control over the smartphone itself, thus maintaining parental control while enabling viewing convenience.
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
Enables high-quality, controllable screen mirroring without interfering with smartphone use, reducing latency and cost, and providing versatile functionality for various applications like video viewing, live streaming, and photography.
Implementation Method 1
a Bluetooth module communicatively connected to the processor module, wherein the portable mobile phone screen-mirroring display is configured to automatically establish a Wi-Fi connection between the Wi-Fi module and the mobile phone based on a Bluetooth connection between the Bluetooth module and the mobile phone
Implementation Method 2
the portable mobile phone screen-mirroring display is configured to receive audio-visual screen-mirroring signals from the mobile phone exclusively through the Wi-Fi module
Implementation Method 3
a display screen communicatively connected to the processor module
Data Source
AI summary
The present invention relates to a portable mobile phone screen-mirroring display, which is adapted to wirelessly connect with a mobile phone to receive audio-visual screen-mirroring signals from the mobile phone, thereby functioning as a portable viewing screen or portable shooting monitor for the mobile phone, and comprises a processor module, and a display screen, a Wi-Fi module and a Bluetooth module communicatively connected to the processor module, the portable mobile phone screen-mirroring display is configured to receive audio-visual screen-mirroring signals from mobile phone exclusively through the Wi-Fi module, and to transmit control commands generated by the processor module back to the mobile phone exclusively through the Bluetooth module. Correspondingly, the Wi-Fi module receives the audio-visual screen-mirroring signals from the mobile phone and transmits the signals to the processor module, the processor module controls the display screen to perform screen mirroring based on the received signals.