Mobile Terminal Display Permission Control for External Screens
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Solution Overview
Problem
Existing methods for displaying data from a terminal device on other devices lack security, leading to potential insecurity and poor user experience.
Innovation Solution
A method and apparatus that determine the display mode of a mobile terminal, receive user operation information, and control the display of content on a screen device only if the target object has permission, enhancing security by ensuring only authorized content is displayed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If data is directly displayed on other devices during display, then display convenience is improved, but security deteriorates
Solution Approach 1:
The patent introduces a screen device as an intermediary between the mobile terminal and the external display. The screen device receives display data from the mobile terminal and controls its presentation on the external screen. This intermediary layer enables the mobile terminal to maintain control over what is displayed, allowing security permissions to be enforced while still achieving convenient cross-device display functionality.
Solution Approach 2:
The patent implements preliminary permission verification before allowing display content to be presented on the external device. The system checks whether the target object (application or file) has obtained the necessary display permission from the user before transferring data to the screen device. This preliminary action prevents unauthorized content from being displayed, resolving the security concern while maintaining operational convenience for authorized content.
2Reliability
If permission verification is added before display, then security is improved, but device complexity increases
Solution Approach 1:
The screen device serves multiple functions: it acts as a display output device, a permission verification intermediary, and a data transmission interface. By making the screen device multi-functional, the patent avoids adding separate dedicated components for permission checking, thereby improving security without proportionally increasing device complexity.
Solution Approach 2:
The mobile terminal itself performs the permission verification function through its existing operating system mechanisms. The terminal checks display permissions locally before initiating data transmission to the screen device. This self-service approach leverages the terminal's existing security framework rather than requiring complex new verification systems, thus improving security with minimal added complexity.
Data Source
AI summary
Disclosed in examples of the present disclosure are a method and apparatus for controlling display, and an electronic device. A particular embodiment of the method includes: determining a current display mode of a mobile terminal; receiving user operation information, where the user operation information is configured to control the mobile terminal to display content of a target object on a screen device; determining whether the target object has display permission to display content on the screen device according to the current display mode; and controlling the mobile terminal to display the content of the target object on the screen device in response to the target object having the display permission. Therefore, security of displaying the content of the target object of the mobile terminal on the screen device can be improved.