Electro-Optic Window Assembly for Dynamic Light Control
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Solution Overview
Problem
Existing display and window assemblies do not effectively manage ambient lighting levels, potentially causing discomfort to users by not being able to adjust light transmission dynamically based on environmental conditions.
Innovation Solution
A display and window assembly that includes a bezel defining multiple apertures, with electro-optic windows switchable between transmissive and darkened states, controlled by a system that detects ambient lighting and adjusts the windows accordingly using electro-optic media and electrodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electro-optic windows are added to the display assembly, then dynamic light transmission adjustment is enabled, but device complexity increases
Solution Approach 1:
The patent combines the electro-optic window assembly with the display unit into a single integrated structure. The electro-optic windows are positioned within the same bezel framework as the display, sharing common mounting structures and control systems. This merging reduces overall device complexity compared to having separate electro-optic window systems, while still enabling dynamic light transmission adjustment functionality.
Solution Approach 2:
The electro-optic windows serve multiple functions: they act as light-shading elements, provide dynamic ambient light management, and can be controlled individually or in conjunction with the display unit. The control system integrates window control with display operation, allowing the windows to function both independently and cooperatively with the display, thereby reducing the need for separate control mechanisms.
2Adaptability or versatility
If electro-optic media and electrodes are integrated into the window structure, then light transmission control is improved, but manufacturing precision requirements increase
Solution Approach 1:
The electro-optic window assembly is divided into discrete components: front substrate, electro-optic medium, electrodes, and back substrate. Each component can be manufactured and tested separately before final assembly. The electrodes are positioned as distinct elements within the gap between substrates, allowing for independent fabrication and quality control. This segmentation reduces the overall manufacturing precision requirements compared to monolithic integration.
Solution Approach 2:
The patent introduces a gap between the front and back substrates as an intermediary space to accommodate the electro-optic medium and electrodes. This gap acts as a buffer that allows for tolerances in component positioning and assembly. The gap provides a controlled environment where the electro-optic elements can be positioned without requiring extremely tight dimensional tolerances across the entire window assembly.
3Ease of operation
If the window assembly is designed to be switchable between transmissive and darkened states, then user comfort is enhanced, but energy consumption increases
Solution Approach 1:
The electro-optic windows operate by switching between transmissive and darkened states in response to ambient lighting conditions. The control system activates the windows periodically or on-demand rather than continuously, depending on the lighting environment and user needs. This periodic operation reduces energy consumption compared to continuous operation, while still providing comfort benefits when needed.
Solution Approach 2:
The control system automatically detects ambient lighting levels and activates the electro-optic windows without requiring continuous user intervention. The system self-regulates based on environmental conditions, turning windows on or off as needed to maintain optimal lighting conditions inside the vehicle. This automated self-service approach reduces energy consumption by avoiding unnecessary operation during unfavorable conditions.
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
The solution allows for dynamic adjustment of light transmission, enhancing user comfort by reducing eye strain in varying lighting conditions, and can be integrated into various structures like aircraft, water vessels, and rail vehicles.
Implementation Method 1
An electro-optic medium is located between the first electrode and the second electrode
Data Source
AI summary
A display and window assembly includes a bezel that defines a first window aperture, a second window aperture, and a display aperture located between the first and second window apertures. A display unit is aligned with the display aperture, a first window is aligned with the first window aperture, and a second window is aligned with the second window aperture. The first window and the second window each include a front substrate that has a first surface and a second surface opposite the first surface. A second substrate has a third surface and a fourth surface opposite the third surface. The second and third surfaces face each other to define a gap. A first electrode is coupled to the second surface, and a second electrode is coupled to the third surface. An electro-optic medium is located between the first electrode and the second electrode.