Vehicle Roof Sun Visor With OLED Display and Liquid Crystal Light Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional sun visors lack multimedia display capabilities and adjustable transmissivity, failing to enhance user convenience and effectively manage light levels inside vehicles.
Innovation Solution
A withdrawal-type sun visor with a display unit and adjustable discoloration unit, utilizing a polymer-dispersed liquid crystal film and motor-driven mechanisms for adjustable transmissivity, along with an automatic light sensor and controller for dynamic light management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional sun visor with a mirror and lighting means is used, then the driver can see himself/herself and block sunlight, but the lighting means deteriorates the quality of high-priced vehicles and is difficult to replace or maintain
Solution Approach 1:
The patent replaces the conventional mechanical lighting means with an OLED (Organic Light-Emitting Diode) panel that can be integrated into the sun visor body. This substitution enables the lighting function to be more easily replaced or maintained while preserving the aesthetic quality, as OLED panels are thin, flexible, and can be seamlessly integrated into the visor structure.
Solution Approach 2:
The sun visor is designed with multiple functions integrated into a single device: light blocking, multimedia display, and adjustable transmissivity control. The display unit can show various information including navigation, entertainment, and vehicle status, while the discoloration unit adjusts light transmission based on external light conditions, creating a versatile device that replaces multiple separate components.
2Adaptability or versatility
If a conventional sun visor with fixed transmissivity is used, then the structure is simple, but it cannot adjust light levels to satisfy user demand or convenience
Solution Approach 1:
The patent introduces a discoloration unit that can dynamically adjust its transmissivity based on external light conditions detected by a light sensor. The unit transitions between different optical states (transparent to opaque) to optimize light blocking, and this dynamic adjustment is controlled automatically or manually, adding adaptability while managing complexity through automated control systems.
Solution Approach 2:
The discoloration unit utilizes materials that can change their optical properties, specifically their transmissivity, in response to electrical signals or light conditions. This color/transparency change capability allows the sun visor to adapt to different lighting environments, providing users with customized light management while maintaining a relatively simple overall structure through the use of specialized materials.
3Adaptability or versatility
If a sun visor with a display unit and discoloration unit is implemented, then user convenience is improved with multimedia display and adjustable transmissivity, but the device complexity increases
Solution Approach 1:
The patent merges multiple functions into the sun visor assembly: the display unit is integrated into the visor body, the discoloration unit is combined with the visor structure, and the light sensor is incorporated into the assembly. This merging reduces the need for separate components and control systems, managing complexity while providing advanced features like multimedia display and adjustable transmissivity.
Solution Approach 2:
The display unit and discoloration unit are nested within the sun visor housing structure. The display unit is positioned behind or within the discoloration unit, allowing both components to share the same space and be controlled by a centralized control system. This nesting arrangement minimizes the overall footprint and reduces the number of separate mounting structures needed.
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
Improves user convenience by providing a sun visor that can block external light and display images, adjusting transmissivity based on light conditions to create a more comfortable driving environment.
Implementation Method 1
utilizing a polymer-dispersed liquid crystal film and motor-driven mechanisms for adjustable transmissivity
Implementation Method 2
an automatic light sensor and controller for dynamic light management
Data Source
AI summary
A withdrawal-type sun visor includes a housing received in a roof panel. The housing has a storage recess therein. The withdrawal-type sun visor also includes a sun visor assembly configured to be received in the housing and to be withdrawn along a windshield glass of a vehicle. The sun visor assembly includes a display unit having a display region and includes a discoloration unit configured to enclose at least a portion of the display unit. The transmissivity of the discoloration unit is adjustable.