Dynamic Vehicle Window Transparency via TFT Transmittance Control
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Solution Overview
Problem
Tinted vehicle windows do not allow drivers to adjust transparency after installation, limiting functionality such as privacy, UV protection, and heat reduction.
Innovation Solution
A system using sensors to detect user proximity and adjust the transmittance of thin-film-transistors (TFTs) in vehicle windows, allowing dynamic control of transparency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If factory tint or aftermarket tint is applied to vehicle windows, then privacy, UV protection, and heat reduction are improved, but the ability to adjust transparency is lost
Solution Approach 1:
The patent applies the dynamics principle by integrating thin-film-transistor (TFT) technology into the window tinting system, transforming the static tinted window into a dynamic one that can adjust its transparency level. The TFTs embedded in the window film can be electrically controlled to change the transmittance of light, allowing the window to transition between transparent and opaque states, thus providing adaptability while maintaining UV protection and heat reduction benefits.
Solution Approach 2:
The patent employs parameter changes by modifying the optical properties of the window film through electrical control of TFTs. By adjusting the electrical state of the TFTs, the transmittance parameter of the window can be changed dynamically, enabling transparency adjustment without compromising the protective functions against UV rays and heat that are inherent in the tinted film material.
2Object-affected harmful factors
If fixed tinting is used to block harmful UV rays and reduce heat, then protection is improved, but the driver cannot adjust transparency when needed
Solution Approach 1:
The patent applies the self-service principle by implementing sensor systems that automatically detect user proximity and trigger transparency adjustments without requiring manual intervention. The system serves itself by using sensors to monitor environmental conditions and user presence, then autonomously controlling the TFTs to adjust the window transparency, thereby maintaining ease of operation while ensuring continuous UV protection.
Solution Approach 2:
The patent employs feedback mechanisms through sensors that detect user proximity and provide input to the control system. This feedback loop enables the system to respond automatically to user needs, adjusting transparency when users approach or leave the vehicle, thus maintaining ease of operation while preserving the protective functions of the tinted film.
3Object-affected harmful factors
If tinted windows are installed to provide privacy and heat reduction, then these protective functions are improved, but the window transparency becomes fixed and non-adjustable
Solution Approach 1:
The patent applies the composite materials principle by combining traditional tinted window film with thin-film-transistor (TFT) technology to create a multi-functional composite material. This composite structure integrates the heat reduction and UV blocking properties of the tinted film with the electrical controllability of TFTs, enabling dynamic transparency adjustment while maintaining the protective functions against heat and UV radiation.
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 adjustable transparency based on user proximity, enhancing privacy, UV protection, and heat management while maintaining aesthetic and functional benefits of tinted windows.
Implementation Method 1
adjusting a transmittance of a plurality of thin-film-transistors (TFTs) of the window to control the transparency of the window
Data Source
AI summary
The present disclosure is directed to systems and methods for controlling a transparency of a window of a vehicle. The system may include a sensor for detecting a user of the vehicle in proximity to the vehicle. The system may also include a control system for controlling the transparency of the window based on the proximity of the user to the vehicle by adjusting a transmittance of a plurality of thin-film-transistors (TFTs) of the window to control the transparency of the window.