Dynamic Privacy Filter for Display Adaptation to Ambient Light
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Solution Overview
Problem
Existing electronic devices lack effective solutions to protect displayed information from being viewed by others, as current privacy filters do not adequately adapt to changing light conditions, which can compromise the privacy of users.
Innovation Solution
An electronic device method that applies a privacy filter based on detected light conditions, adjusting settings such as background darkness, contrast, and blur to ensure information remains private, even as ambient light levels change, by using a touch-sensitive display and light sensor to dynamically adjust the privacy filter settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a static privacy filter is applied to the display, then privacy protection is provided, but the filter fails to adapt to changing light conditions compromising privacy
Solution Approach 1:
The patent applies a dynamic privacy filter that automatically adjusts its characteristics based on detected ambient light conditions. The system transitions from a static filter to a dynamic one that responds to environmental changes, maintaining effective privacy protection across varying lighting scenarios without manual intervention.
Solution Approach 2:
The system incorporates a light sensor that continuously monitors ambient lighting conditions and provides feedback to the display controller. This feedback loop enables the privacy filter to automatically adjust its parameters (such as darkness level or blur intensity) in response to changing light conditions, ensuring consistent privacy protection.
2Object-affected harmful factors
If the privacy filter makes information more obscure to protect privacy, then unintended viewers cannot read the content, but the user's ability to read the content may be compromised
Solution Approach 1:
The privacy filter applies different levels of obscuration to different portions of the display based on viewing angle and light conditions. Areas more susceptible to unintended viewing receive stronger filtering, while maintaining adequate legibility for the primary user viewing from the intended angle, thus balancing privacy protection with usability.
Solution Approach 2:
The system dynamically adjusts privacy filter parameters such as darkness level, contrast adjustment, and blur intensity based on detected light conditions and viewing context. This parameter adaptation ensures that the filter provides sufficient privacy protection while maintaining acceptable legibility for the intended user.
Data Source
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AI summary
A method of applying a privacy filter to display information on a display of an electronic device, includes receiving information for display on the display of the electronic device, detecting a light condition of the display, and applying a privacy filter setting based on the light condition of the display.