Outward-Facing Display Pixel Lighting for Low-Light Visibility
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Solution Overview
Problem
Existing display devices struggle to effectively illuminate their environment in low light conditions, particularly in extended reality systems, where ambient lighting may not satisfy brightness criteria for user interaction and object recognition.
Innovation Solution
An outward-facing display device adjusts its pixel brightness and color based on ambient lighting conditions, using gaze-tracking and gesture-based interfaces to selectively illuminate areas of interest, ensuring sufficient visibility without excessive power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the display device illuminates the entire environment, then visibility is improved, but power consumption increases
Solution Approach 1:
The display device selectively illuminates only specific areas of interest (such as where a user is looking or interacting) rather than the entire environment. This local illumination approach maintains visibility where needed while significantly reducing overall power consumption by leaving other areas dark.
Solution Approach 2:
The display divides the environment into multiple regions or zones and applies different illumination levels to each segment. By segmenting the illumination task, the system can provide targeted lighting to critical areas while maintaining energy efficiency in less important regions.
2Illumination intensity
If the display device uses traditional light sources, then illumination is provided, but the lighting does not match ambient conditions
Solution Approach 1:
The display device incorporates sensors that continuously monitor ambient lighting conditions and provide feedback to the control system. Based on this feedback, the display dynamically adjusts its illumination characteristics (color temperature, brightness) to match the ambient environment, creating a cohesive lighting experience that adapts to changing conditions.
Solution Approach 2:
The display changes its operational parameters (such as color temperature and luminous intensity) to match ambient lighting conditions. By adjusting these parameters in real-time, the display maintains visual comfort and consistency with the surrounding environment, whether indoors or outdoors.
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
Enhances user interaction and object recognition in low light environments by providing targeted illumination, improving usability and reducing power consumption.
Implementation Method 1
a set of pixels in the outward-facing display device corresponding to an area of interest in the environment may be determined. Then, the set of pixels in the outward-facing display device may be driven at a particular brightness to improve lighting in the area of interest.
Data Source
AI summary
Operating an outward-facing display device for low light conditions may include receiving information indicative of ambient lighting conditions for the display device's environment; in accordance with a determination that the ambient lighting conditions do not satisfy a brightness criterion, determining a set of pixels in the outward-facing display device corresponding to an area of interest in the environment; and driving the set of pixels at a particular brightness to improve lighting in the area of interest.