Adjustable Display Bias Lighting With Ambient-Responsive Reflective Baffle
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Solution Overview
Problem
Conventional bias lighting systems in Information Handling Systems (IHS) lack adaptability to ambient light conditions, leading to suboptimal user experience in varying lighting environments, as they either over-reflect light in normal conditions or under-reflect in low-light conditions.
Innovation Solution
An adjustable light emitting halo system with a selectively reflective layer on a baffle surface, controlled by a processing device that receives ambient light signals, allowing the reflectivity to be dynamically adjusted to optimize light reflection based on ambient conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed reflective surface is used in bias lighting systems, then the structure is simple and easy to manufacture, but the system cannot adapt to varying ambient light conditions
Solution Approach 1:
The patent applies a dynamically adjustable reflective surface that can change its reflectivity state based on ambient light conditions. The system transitions from a static fixed surface to a dynamic adjustable surface, allowing the bias lighting system to adapt to varying lighting environments while maintaining reasonable structural complexity through controlled adjustability.
Solution Approach 2:
The patent changes the reflectivity parameter of the surface material dynamically. By varying the reflectivity state of the reflective surface in response to ambient light detection, the system achieves adaptability to different lighting conditions without requiring complete structural redesign, thus balancing adaptability improvement with complexity control.
2Illumination intensity
If high reflectivity is used to enhance light output, then illumination intensity improves, but glare increases in normal lighting conditions
Solution Approach 1:
The system dynamically adjusts the reflectivity of the surface based on detected ambient light conditions. In low-light environments, the surface maintains high reflectivity to maximize light output and enhance illumination intensity. In normal lighting conditions, the reflectivity is reduced to minimize glare and harmful light reflection, thus resolving the contradiction between illumination intensity and glare reduction.
Solution Approach 2:
The patent implements a feedback mechanism where an ambient light sensor detects the lighting conditions and provides input to control the reflective surface's state. This closed-loop feedback system automatically adjusts reflectivity levels to optimize light output while preventing glare, balancing illumination intensity improvement with harmful factor reduction.
3Object-affected harmful factors
If low reflectivity is used to minimize glare, then harmful light reflection decreases, but light output is insufficient in low-light conditions
Solution Approach 1:
The system dynamically switches between low and high reflectivity states based on ambient light detection. In normal lighting conditions, low reflectivity minimizes glare and harmful light reflection. In low-light conditions, the system transitions to high reflectivity to maximize light output intensity, thus resolving the contradiction between glare reduction and light output sufficiency through dynamic adaptation.
Solution Approach 2:
The feedback mechanism from the ambient light sensor enables the system to automatically adjust reflectivity levels. When ambient light is detected, the system reduces reflectivity to minimize glare. When ambient light levels drop, the system increases reflectivity to maintain sufficient light output, thereby balancing harmful factor reduction with illumination intensity requirements.
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 experience by optimizing bias lighting in both low-light and normal lighting conditions, providing an immersive experience while minimizing eyestrain and energy consumption.
Implementation Method 1
a selectively reflective layer disposed on the baffle surface, wherein the selectively reflective layer has a reflectivity that is changeable to selectively reflect a varying amount of light outputted from the bias lights
Data Source
AI summary
An external display may support bias lighting via lights located on the rear of the display. Embodiments provide a baffle connected to the rear of the display such that the baffle redirects light output from the rear-facing bias lights. According to one embodiment, a display for presenting information generated by an Information Handling System (IHS) includes a screen disposed on a front side of the display, one or more bias lights disposed on a rear side of the display, a baffle comprising a baffle surface, the baffle coupled to the rear side of the display, and a selectively reflective layer disposed on the baffle surface, wherein the selectively reflective layer has a reflectivity that is changeable to selectively reflect a varying amount of light outputted from the bias lights.