Interactive Projection Interface on Sensor Film for Vehicle Windows
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Solution Overview
Problem
Existing interactive touchscreens are unsuitable for environments like vehicle windows due to weight, sensitivity to elements, and privacy concerns, limiting their use in applications such as retail displays and home sales signs.
Innovation Solution
An interactive projection system using a lightweight film with embedded sensors and a projector, allowing for dynamic interface generation and power control, which detects local pressure disturbances to modify the projected user interface and incorporates proximity-based features for energy efficiency and privacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If an interactive touchscreen is used to replace stationary signs, then information display capability is improved, but weight and bulk increase making it unsuitable for vehicle windows
Solution Approach 1:
The patent uses a projector to create a virtual touchscreen interface on a lightweight transparent film, copying the functionality of a full touchscreen without the physical bulk. The projected interface appears interactive but is actually controlled via mobile device, eliminating the need for a heavy physical touchscreen while maintaining information display capabilities.
Solution Approach 2:
The patent introduces a mobile device as an intermediary between the user and the display system. The mobile device captures images of the projected interface, processes touches, and communicates with the backend system, allowing the lightweight film to serve as a display surface without requiring embedded sensors or heavy processing components.
2Loss of information
If an interactive touchscreen is adhered to vehicle windows, then information display capability is improved, but the strong adhesive required may damage the vehicle window
Solution Approach 1:
The patent uses a thin, flexible, transparent film that can be adhered to vehicle windows with minimal adhesive. The film serves as a carrier for the projected interface and protects the window from direct adhesive contact, reducing the risk of window damage while maintaining display functionality.
3Loss of information
If an interactive touchscreen is used outdoors, then information display capability is improved, but sensitivity to rain, snow, and elements increases
Solution Approach 1:
The thin film acts as a protective barrier between the electronic components (mobile device, projector) and environmental elements like rain and snow. The film is exposed to elements but the sensitive electronics remain protected inside the vehicle, reducing environmental sensitivity while maintaining outdoor display capability.
Solution Approach 2:
The system captures a digital copy of the displayed interface via mobile device camera, allowing the interface to be viewed and interacted with through the mobile device screen, which is inherently protected from environmental elements while the projection can be displayed outdoors.
4Ease of operation
If customized interfaces are generated for individual users, then user experience is improved, but privacy concerns increase
Solution Approach 1:
The system dynamically generates and updates user interfaces in real-time based on detected user proximity and characteristics. The interface customization occurs periodically as users approach or interact with the display, allowing personalized content delivery while maintaining privacy through on-device processing and selective data transmission.
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
Enables a more energy-efficient and customizable interactive interface suitable for vehicle windows and other outdoor applications, addressing weight and environmental sensitivity issues while ensuring privacy through dynamic power control and interface adjustments.
Implementation Method 1
a film having a plurality of sensors embedded therein, the plurality of sensors configured to detect local pressure disturbance on the film
Data Source
AI summary
The present disclosure relates to interactive projection systems. In one implementation, an interactive projection system may include a surface having a plurality of sensors embedded therein, the plurality of sensors configured to detect local pressure disturbance on the surface; a projector configured to project a user interface onto the surface; and at least one processor. The at least one processor may be configured to perform operations, including receiving a detection of a local pressure disturbance from at least one of the plurality of sensors, based on a location of the detected local pressure disturbance, determining a change in the user interface, and transmitting a command to the projector to modify a projected user interface according to the determined change.