Variable-Transmittance Visor Display for Glare and Dual-Side Viewing
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Solution Overview
Problem
Current vehicle display assemblies lack the ability to dynamically control light transmittance and display output, leading to issues with glare reduction and distraction in the passenger compartment, as well as limited flexibility in displaying content both inside and outside the vehicle.
Innovation Solution
A variable transmittance display assembly featuring an electro-optic element that adjusts transmittance in response to a control signal, allowing the display to output light from one or both sides, with a controller managing multiple states to block or transmit light and content accordingly, integrated with a support structure for connection to the vehicle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display outputs light from both sides to increase visibility flexibility, then display versatility is improved, but glare and distraction in the passenger compartment increases
Solution Approach 1:
The patent applies dynamics by making the electro-optic element's transmittance adjustable and variable over time. The controller dynamically changes the transmittance state of the electro-optic element based on operational conditions, allowing the display to switch between different light transmission modes (fully transmissive, partially transmissive, blocking) to resolve the contradiction between display versatility and glare reduction.
Solution Approach 2:
The patent changes the transmittance parameter of the electro-optic element to control light passage. By adjusting this physical parameter, the system can selectively allow or block light from passing through the display assembly, thereby controlling both display visibility and glare levels in different operational states.
2Object-affected harmful factors
If the electro-optic element blocks light to reduce glare in the passenger compartment, then harmful factors are reduced, but display content visibility outside the vehicle is limited
Solution Approach 1:
The system dynamically adjusts the electro-optic element's transmittance based on the desired function. When exterior visibility is needed, the element becomes fully transmissive; when glare reduction is prioritized, it blocks light. This dynamic adaptability resolves the contradiction between reducing harmful factors and maintaining display versatility.
Solution Approach 2:
The display assembly is designed to perform multiple functions through the electro-optic element: it can display content to passengers, display content to exterior observers, and block light to reduce glare. The controller manages these competing functions by switching the electro-optic element between different transmittance states, achieving multi-functionality that resolves the contradiction.
3Device complexity
If a fixed transmittance panel is used to simplify the structure, then device complexity is reduced, but the ability to control light transmittance and display output dynamically is lost
Solution Approach 1:
Instead of using multiple physical panels with different fixed transmittance properties, the patent changes the transmittance parameter of a single electro-optic element through electrical control. This approach maintains relative structural simplicity while achieving dynamic light transmittance control, resolving the contradiction between device complexity and adaptability.
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
This solution effectively reduces glare by controlling light transmittance and enhances the flexibility of displaying content both inside and outside the vehicle, improving passenger comfort and reducing distractions by selectively transmitting display light and environmental light.
Implementation Method 1
an electro-optic element configured to vary in transmittance in response to a transmittance control signal
Data Source
AI summary
A display assembly for a vehicle is disclosed. The display assembly may include a variable transmittance panel in connection with a support structure connecting the display assembly to the vehicle. The variable transmittance panel may include an electro-optic element configured to vary in transmittance in response to a transmittance control signal and a display that is at least partially light transmissive. The display may include opposing display surfaces on a first side and a second side. The first side is disposed adjacent to the electro-optic element. In operation, the display may output display content as display light from both the first side and the second side. The visibility of the display light output from the first side may be controlled or adjusted by the transmittance of the electro-optic element.