Vehicle Window Transparency Control for Attention Guidance
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Solution Overview
Problem
Existing vehicle attention guidance systems, such as augmented-reality head-up displays (AR-HUDs) and audio cues, are either expensive, limited in field of view, or indirect in guiding the driver's attention, failing to effectively highlight critical external objects or conditions.
Innovation Solution
A system that adjusts the transparency of vehicle windows using 'smart glass' technology to visually highlight important regions of the environment, allowing the driver or occupant to focus on critical traffic situations or landmarks by making specific portions of the windows more transparent than others.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If AR-HUD is used to direct driver attention, then attention guidance capability is improved, but cost increases and field of view is limited
Solution Approach 1:
The patent segments the window transparency control into multiple independently controllable regions, allowing different transparency levels for different areas of the window. This enables selective attention guidance to specific external objects or regions without requiring a complete AR-HUD system, thereby reducing cost while maintaining effective attention direction capability.
Solution Approach 2:
The patent transitions from the traditional AR-HUD approach of projecting information onto a fixed display plane to dynamically controlling transparency across the two-dimensional window surface. This dimensional approach allows the entire window area to serve as a guidance medium, expanding the effective field of view beyond what conventional AR-HUD systems can provide.
2Device complexity
If audio cues are used to direct driver attention, then cost is reduced, but attention guidance becomes indirect by using another sense
Solution Approach 1:
The patent applies the principle of optical property changes by dynamically adjusting the transparency (optical characteristic) of window regions to guide driver attention. This direct visual approach eliminates the need for indirect audio cues while maintaining cost-effectiveness, as the window itself becomes the attention-guiding medium through transparency modulation.
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
Directly and effectively guides the driver's or occupant's attention to important external regions, enhancing safety by highlighting critical traffic situations or landmarks without obstructing secondary important views, while being cost-effective and not relying on alternative senses.
Implementation Method 1
adjusts the transparency of one or more windows of the vehicle such that a first portion of the one or more windows through which the occupant is able to see the particular region is more transparent than a second portion of the one or more windows
Data Source
AI summary
Systems and methods for guiding a vehicle occupant's attention are disclosed herein. One embodiment selects automatically a particular region of an environment external to a vehicle and guides an occupant of the vehicle to look at the particular region by automatically adjusting the transparency of one or more windows of the vehicle such that a first portion of the one or more windows through which the occupant is able to see the particular region is more transparent than a second portion of the one or more windows that is adjacent to the first portion.