Display Device Wireless Sharing With Multi-Screen Permission Control
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Solution Overview
Problem
Existing screen sharing methods, such as HDMI cables and Miracast, impose limitations on distance, require wired connections, and restrict simultaneous sharing of multiple PC screens, necessitating separate installations and settings, which are inconvenient for users.
Innovation Solution
A display device equipped with wireless communication capabilities allows for screen sharing without wired cables, enabling simultaneous or sequential sharing of multiple PC screens by managing screen sharing permissions and transmitting image data through portable devices, thereby simplifying installation and configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If HDMI cable connection is used for screen sharing, then stable connection is achieved, but distance is restricted by cable length and multiple screens cannot be shared simultaneously
Solution Approach 1:
The patent replaces the mechanical HDMI cable connection system with a wireless communication system using Wi-Fi Direct technology. This substitution eliminates the physical cable constraint, allowing screen sharing without distance restrictions and enabling simultaneous connection to multiple display devices through wireless protocols.
Solution Approach 2:
The patent implements multi-screen sharing capability by allowing the source device to simultaneously establish wireless connections with multiple display devices. The system can share screens with multiple devices at once, and users can switch between different display devices seamlessly, providing universal adaptability across various sharing scenarios.
2Ease of operation
If Miracast screen sharing is used, then wireless connection is achieved, but PC Wi-Fi usage is restricted and only 1:1 connection is supported
Solution Approach 1:
The patent implements dynamic connection management where the source device can flexibly switch between different display devices and manage multiple active connections. The system dynamically allocates resources and manages connection states, allowing users to add or remove display devices from the sharing session without terminating the entire connection.
Solution Approach 2:
The patent introduces a display device as an intermediary that receives wireless connections from the source device and relays the shared screen content to multiple output devices. This intermediary approach enables the source device to maintain a single wireless connection while distributing content to multiple displays, bypassing the 1:1 connection limitation.
3Ease of operation
If other wireless sharing methods are used, then screen sharing is possible, but separate program installation and settings are required causing operational inconvenience
Solution Approach 1:
The patent implements automatic connection establishment where the source device and display devices automatically negotiate and establish wireless connections without requiring manual program installation or complex configuration. The system uses pre-configured protocols and automatic pairing mechanisms to enable screen sharing immediately, eliminating the need for user-side setup procedures.
Data Source
AI summary
A display device according to the present disclosure may include a display part; a wireless communication part configured to perform wireless communication with a first portable device connected to a first terminal displaying a first image or a second portable device connected to a second terminal displaying a second image; and a controller configured to: when a screen sharing request is received from the first portable device, determine whether a management mode for managing screen sharing of the second portable device connected to the second terminal is activated, when the management mode of the second portable device is activated, determine whether screen sharing permission has been received from the second portable device, when the screen sharing permission is received, receive the first image data corresponding to the first image from the portable device, and based on the received first image data, display first mirroring image on the display part.