Display Protection Pixels for Camera-Resistant Sensitive Data
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Solution Overview
Problem
Existing display technologies fail to effectively prevent sensitive data from being captured by cameras, even with measures like blocking screenshot software and limiting peripheral connections, as users can still take photographs or videos of sensitive information displayed on screens.
Innovation Solution
Incorporating protection pixels that emit invisible light configured to obscure images or videos captured by cameras, while allowing normal viewing, and using software to ensure only compatible displays with protection functionality can show sensitive data, thereby preventing unauthorized copying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional display technologies are used, then the display can show information clearly to users, but sensitive data can be captured by cameras
Solution Approach 1:
The display incorporates special protection pixels at specific locations where sensitive data is displayed. These protection pixels emit invisible light only in regions containing sensitive information, while other areas of the display maintain normal visible output. This localized application of invisible light preserves overall display functionality while providing targeted protection for sensitive data regions.
Solution Approach 2:
Invisible light emitting protection pixels serve as an intermediary mechanism between the visible display content and camera capture. The protection pixels emit invisible light that interferes with camera sensors attempting to capture images of the display, effectively mediating the interaction between the display output and external capture devices while maintaining normal human viewing capability.
2Reliability
If protection pixels emitting invisible light are added to the display, then camera capture is prevented, but the display structure becomes more complex
Solution Approach 1:
The protection pixels are merged with the existing display pixel structure, sharing common control circuitry and physical substrate. The display controller integrates the function of detecting sensitive data regions and activating corresponding protection pixels within the same control framework used for normal display operations, thereby reducing overall system complexity despite adding protection functionality.
Solution Approach 2:
The display pixels serve multiple functions: standard pixels display visible information, while protection pixels emit invisible light for security. The same display controller manages both visible display operations and invisible light emission for protection, creating a multi-functional system that achieves data security without requiring entirely separate protection mechanisms.
3Reliability
If software restrictions like blocking screenshot software are implemented, then some unauthorized copying is prevented, but users can still take photographs with cameras
Solution Approach 1:
The system converts the potential harm of camera capture into a beneficial protection mechanism by using invisible light emission. The invisible light from protection pixels does not interfere with normal display function but effectively prevents camera sensors from capturing sensitive data, thereby converting what could be a security vulnerability (camera capability) into a security strength.
Solution Approach 2:
The display dynamically changes the emission parameters of protection pixels based on the content being displayed. When sensitive data is detected in a region, the corresponding protection pixels emit invisible light at specific intensities and wavelengths. This dynamic parameter adjustment ensures protection is applied selectively and adaptively rather than uniformly across the entire display.
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
The solution effectively prevents sensitive data from being captured by cameras, enhancing security by ensuring that sensitive information remains protected from unauthorized copying, even in public settings or when using non-secure connections.
Implementation Method 1
Incorporating protection pixels that emit invisible light configured to obscure images or videos captured by cameras
Data Source
AI summary
A display device includes a display comprising a plurality of pixels. The display also has a plurality of regions. At least one of the plurality of regions is a protected region and the protected region includes at least one protection pixel. The display device also includes an image generator configured to receive a source image data for display content, identify a portion of the display content that includes sensitive data, and output the display content such that at least a portion of the protected region containing the sensitive data is displayed in at least one of a protection wavelength and a protection brightness.