Vehicle Window Electrochromic Film Gaze Control
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Solution Overview
Problem
Existing methods for advertising on vehicles, such as external display devices or LED lamps, obstruct the driver's view and have limitations in graphics and content, while also facing challenges in installation and management.
Innovation Solution
A system using an electrochromic film on vehicle windows that adjusts transparency based on the driver's gaze, detected by a gaze detector and controlled by a controller, allowing the window to be transparent when the driver looks at it and opaque when not, while projecting advertisements onto the opaque window when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a separate display device is installed outside the vehicle for advertising, then advertisement capability is improved, but the driver's view is obstructed
Solution Approach 1:
The window transparency is dynamically adjusted based on the driver's gaze direction. When the driver looks at the window, it becomes transparent; when the driver looks away, it becomes opaque for advertising display. This dynamic adjustment resolves the contradiction by making the window's transparency state changeable rather than fixed.
Solution Approach 2:
The window exhibits different transparency properties in different spatial-temporal contexts. The same window area can be transparent when the driver needs to see through it, and opaque when used for advertising, creating local quality variation based on usage context rather than uniform property throughout.
2Ease of manufacture
If an LED lamp is used for simple advertisement, then cost is reduced, but graphics and content capability are limited
Solution Approach 1:
The electrochromic window film can change its optical properties including color and transparency states. This allows the window to display various types of content (images, videos, advertisements) by controlling the film's optical characteristics, providing rich graphics and content capability without requiring separate complex display hardware.
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
Prevents the inside of the vehicle from being exposed externally without obstructing the driver's view, while enabling effective outdoor advertising by projecting images onto the opaque windows when the driver is not looking at them.
Implementation Method 1
an electrochromic film provided on a vehicle window and configured to control transparency according to a transparency control signal
Data Source
AI summary
Provided is a system for controlling transparency of a vehicle window according to recognition of a gaze of a driver, the system including: an electrochromic film provided on a vehicle window and configured to control transparency according to a transparency control signal; a gaze detector configured to detect a gaze of a driver; a gaze determiner configured to determine whether the gaze of the driver is directed at the vehicle window on which the electrochromic film is located; and a controller configured to transmit the transparency control signal according to the determined gaze of the driver.