Adjustable Louver Display Privacy Control
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Solution Overview
Problem
Information handling systems face challenges in maintaining privacy for display content, especially when the display is rotated or viewed from angles outside the intended viewing region, as existing solutions fail to effectively obscure information from bystanders.
Innovation Solution
The implementation of a display privacy solution using adjustable backlight segments and louvers, which can be controlled by a timing controller to direct light emissions at specific angles, creating a privacy area by obscuring light emissions outside a predetermined viewing region, regardless of the display's orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed viewing angle privacy solution is used, then privacy is maintained for centered users, but privacy is lost when users are not centered or display is rotated
Solution Approach 1:
The patent applies dynamics by making the louver angles adjustable rather than fixed. The system dynamically changes louver orientations based on detected user positions and display orientations, allowing the privacy filter to adapt to different viewing scenarios while maintaining reliable privacy protection for all users regardless of their position relative to the display center.
Solution Approach 2:
The system changes the angular parameters of the louvers based on user position and display orientation. By dynamically adjusting the louver angles as parameters, the privacy filter maintains effectiveness whether users are centered or not, and whether the display is in portrait or landscape mode, thus resolving the contradiction between reliable privacy and adaptability.
2Reliability
If asymmetric intensity curve is used for off-center users, then privacy is maintained for off-center users, but requires complex backlight segment control
Solution Approach 1:
The backlight is divided into multiple independently controllable segments, allowing asymmetric illumination patterns for off-center users. This segmentation enables the system to activate only the necessary backlight segments corresponding to the user's position, providing reliable privacy protection while managing control complexity through modular organization of the backlight elements.
Solution Approach 2:
The system applies local quality by providing different illumination intensities to different spatial regions of the display based on user position. For off-center users, the backlight segments corresponding to the user's region are activated with appropriate intensity, while other regions remain dim or off, ensuring privacy protection tailored to each user's location without requiring uniform complex control 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
This solution ensures that sensitive information remains private even when the display is rotated or viewed from unintended angles, effectively blocking information from bystanders while allowing authorized users to view the content within the designated viewing region.
Implementation Method 1
generate, via the first backlight segments, first light emissions; may direct, via first louvers, the first light emissions at a first angle with respect to a surface of the display
Data Source
AI summary
In one or more embodiments, one or more systems, methods, and/or processes may receive first configuration information; may activate, based at least on the first configuration information, first backlight segments; may generate, via the first backlight segments, first light emissions; may direct, via first louvers, the first light emissions at a first angle with respect to a surface of a display; may deactivate the first backlight segments; may receive second configuration information; may activate, based at least on the second configuration information, second backlight segments of the display, where at least a portion of the second backlight segments is different from at least a portion of the first the backlight segments; may generate, via the second backlight segments, second light emissions; and may direct, via second louvers, the second light emissions at a second angle, different from the first angle, with respect to the surface of the display.