OLED Vehicle Window Dimming via Ambient Light Feedback
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Solution Overview
Problem
Strong sunlight can cause driver distraction and discomfort due to blinding glare and heat, necessitating a system to actively dim sunlight and other light distractors on vehicle windshields.
Innovation Solution
A computer-based system using a processor, memory, light sensors, and cameras to monitor ambient light and facial features, adjusting the visible light transmission and color of an OLED window to generate a dim spot at the driver's point of gaze, while adhering to regulatory minimum VLT levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an OLED window is used to actively dim sunlight, then driver distraction and discomfort are reduced, but device complexity and cost increase
Solution Approach 1:
The patent applies color changes by using an OLED window that can dynamically adjust its optical properties (transparency, tint, color) to block or dim sunlight. The OLED window changes its state from transparent to tinted based on ambient light conditions, directly addressing the harmful effect of sunlight while maintaining a relatively simple system architecture.
Solution Approach 2:
The system employs dynamics by making the OLED window's dimming state adjustable and responsive to changing environmental conditions. The window can dynamically transition between different transparency levels and tint intensities based on real-time ambient light monitoring, allowing the system to adapt to varying sunlight conditions throughout the day.
2Ease of operation
If the OLED window tint is adjusted based on ambient light, then comfort is improved, but energy consumption increases
Solution Approach 1:
The patent implements feedback by using ambient light sensors to continuously monitor sunlight conditions and automatically adjusting the OLED window's dimming state in response. This closed-loop feedback system ensures optimal occupant comfort by responding to actual environmental conditions rather than requiring manual intervention, while the automated nature of the system prevents excessive energy consumption through intelligent control.
Solution Approach 2:
The system applies self-service by enabling the OLED window to automatically adjust its own dimming state based on ambient light conditions detected by onboard sensors. The system serves itself by making autonomous decisions about when and how much to dim the window, eliminating the need for constant manual adjustment by the driver and optimizing energy usage based on actual environmental needs.
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
Effectively reduces driver distraction and discomfort by dynamically dimming sunlight and other light sources, ensuring safety and comfort by adjusting the tint and color of the OLED window based on real-time environmental and occupant feedback.
Implementation Method 1
an organic light-emitting diode (OLED) window that the processor is configured to dim based on the ambient light
Implementation Method 2
monitor ambient light in a surrounding vehicle environment via a light sensor located on a vehicle
Data Source
AI summary
One general aspect includes a system to tint at least a portion of a vehicle window, the system including: a memory configured to include one or more executable instructions and a processor configured to execute the executable instructions, where the executable instructions enable the processor to: monitor ambient light in a surrounding vehicle environment; and based on the ambient light, dim at least a portion of an OLED window located at a vehicle.