Privacy Display Viewing Angle Control With User Authentication
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Solution Overview
Problem
Computing devices face challenges in maintaining privacy by preventing unauthorized users from viewing sensitive information or images displayed in public locations, as unauthorized users can easily access the screen when an authorized user is present.
Innovation Solution
A computing device system that uses recognition sensors to authenticate authorized users through facial, fingerprint, retina, or alphanumeric identification, activating the display screen within a specified viewing angle and regulating polarization to ensure only the authorized user can view the content, while deactivating the screen for unauthorized users outside this angle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the display screen is activated without authentication, then the ease of operation is improved, but the privacy protection deteriorates
Solution Approach 1:
The system performs authentication before activating the display screen. The controller receives recognition data from sensors (facial, fingerprint, retina, or alphanumeric) and verifies the user's identity before allowing screen activation, ensuring privacy protection is established in advance
Solution Approach 2:
The system implements directional visibility control where the display screen is only visible within a specific viewing angle from the front surface. This creates different visibility qualities for different spatial locations, allowing authorized users to view content while preventing unauthorized viewing from other angles
2Loss of information
If recognition sensors and authentication mechanisms are added, then the privacy protection is improved, but the device complexity increases
Solution Approach 1:
The controller integrates multiple functions into a single component: it processes recognition data from various sensor types (facial, fingerprint, retina, alphanumeric), performs authentication verification, controls display screen activation, and manages polarization filtering. This multi-functionality reduces the need for separate dedicated components for each function
Solution Approach 2:
The system uses a polarization filter as an intermediary between the display screen and unauthorized viewers. The filter is positioned to block light from reaching viewers outside the designated viewing angle, providing passive optical privacy protection without requiring active sensing or complex mechanical components
3Ease of operation
If the display screen is made visible from all angles, then the ease of operation is improved, but the object-affected harmful factors increase
Solution Approach 1:
The display screen is configured with directional emission characteristics where light is primarily emitted within a specific angle range from the front surface. This creates different visibility qualities for different spatial locations, allowing authorized users to view content while preventing unauthorized viewing from other angles
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
Provides enhanced privacy by ensuring that only authorized users within a defined viewing angle can access the display content, preventing unauthorized viewing and maintaining confidentiality in public settings.
Implementation Method 1
regulating polarization to ensure only the authorized user can view the content
Data Source
AI summary
Methods, apparatuses, and non-transitory machine-readable media for displaying information and/or images on a display of a computing device based on received data. Apparatuses can include a display screen, a memory resource, a recognition sensor, and a controller. An example controller can receive data and activate information and/or images on a display screen based in part on the received data. In another example, a method can include storing recognition data in a memory resource, receiving primary recognition data, comparing the primary recognition data to the stored recognition data, and activating the display screen for a viewing angle responsive to authentication of the primary recognition data through the comparison of the primary recognition data and the stored recognition data.