Information Processing Device Privacy Protection for Shared Displays
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Solution Overview
Problem
In systems where a single image display device is shared among multiple users, there is a challenge in preventing sensitive information from being displayed to other users, as existing techniques do not effectively hide user interface screens or sensitive information during shared image projections.
Innovation Solution
An information processing device with a display unit, image output unit, detection unit, and output control unit that detects the switching of a user interface screen from a first state to a second state, and outputs a second screen without the user interface to the image display device, ensuring that sensitive information is not displayed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the user interface screen is displayed on the projection screen to allow user operation, then the ease of operation is improved, but the loss of information (privacy) worsens
Solution Approach 1:
The screen is divided into two independent display channels: a first screen displayed on the projection screen for other users, and a second screen displayed only on the display unit for the current user. This segmentation allows the user interface to be visible to the operating user while remaining hidden from other projection viewers, thus resolving the contradiction between operational convenience and privacy protection.
Solution Approach 2:
Different parts of the display system are assigned different display qualities: the first screen area shows content suitable for public projection, while the second screen area maintains private user interface elements visible only to the local user. This local quality differentiation enables simultaneous public accessibility and private information protection.
2Adaptability or versatility
If the same image is displayed on both the main display device and the projection screen, then the adaptability is improved, but the loss of information (privacy) worsens
Solution Approach 1:
The display content is segmented into two distinct streams: a first image for projection display and a second image for local display only. This allows the system to maintain adaptability across multiple display devices while preventing sensitive information from being exposed on the projection screen, as each device receives and displays only the appropriate content stream.
Solution Approach 2:
Instead of displaying the same content on both devices and then trying to hide sensitive parts, the system inverts the approach by generating different content streams from the beginning - one optimized for public projection and another for private local viewing, thus preventing sensitive information exposure at the source.
Data Source
AI summary
An information processing device includes: an image output unit which outputs a screen displayed on a display unit to an image display device; a display control unit which displays a first screen including a user interface screen at least in a part of the screen; a detection unit which detects that the user interface screen is switched from a first state that does not include predetermined information to a second state that includes the information; and an output control unit which outputs a second screen that does not include the user interface screen, instead of the first screen displayed by the display control unit, to the image output unit, if it is detected that the user interface screen is switched from the first state to the second state.