NFC-Based Display Mirroring for Context-Aware Multi-Screen Output
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Solution Overview
Problem
Existing screen mirroring technologies require tedious and error-prone manual processes for device connection and content transmission, and often limit output based on predetermined functions without considering the context of the content being output.
Innovation Solution
A method utilizing near field communication (NFC) to automatically detect and connect user terminal devices with display devices, allowing for seamless transmission of content based on the type of content being output, using different communication methods for audio and video content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a user terminal device mirrors its entire display screen to a display device, then the display device can show content from the user terminal, but the display device cannot display other content simultaneously and the user terminal cannot mirror multiple displays at once
Solution Approach 1:
The display content is segmented into different regions or portions that can be independently transmitted to multiple display devices. The user terminal device divides its display output into separate content streams, allowing each display device to receive and show specific portions simultaneously, thus enabling one-to-many mirroring without content conflict.
Solution Approach 2:
The content transmission system is designed to handle multiple display devices universally. The user terminal device implements multi-functionality by supporting simultaneous content distribution to multiple displays, and the display devices can universally receive and process content from various user terminal types (smartphones, tablets, PCs).
2Reliability
If content is transmitted from user terminal device to display device, then the display device can show the content, but the transmission may be interrupted when the user terminal enters sleep mode or receives incoming calls
Solution Approach 1:
The system establishes content transmission before the user terminal enters sleep mode or receives a call. The display device receives and buffers content in advance, or the system is designed to pause and resume transmission seamlessly when the user terminal wakes up or the call ends, ensuring minimal interruption to the displayed content.
Solution Approach 2:
The system implements feedback mechanisms where the display device or intermediary server monitors the transmission status and user terminal state. When the user terminal enters sleep mode or receives a call, the system detects this state change and adjusts the content transmission accordingly, either by pausing, buffering, or resuming to maintain reliable and continuous content display.
Data Source
Figure 1A~1B
Figure 2A
Figure 2B
AI summary
The present disclosure relates to a display device, a user terminal device, a method for controlling a display device, and a method for controlling a user terminal device. The disclosure relates to a method in which a display device outputs content that is being output via a user terminal device based on a content request event associated with a request for the display device to output information associated with content that is being output via the user terminal device.