Vehicle Display Viewing Angle Control for Driver Distraction and Privacy
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Solution Overview
Problem
Existing vehicle display devices pose risks of driver distraction and privacy violation due to inappropriate viewing angles and exposure of content to others, both inside and outside the vehicle.
Innovation Solution
A display device with a viewing angle adjustment panel using liquid crystal layers controlled by a controller to restrict viewing angles based on vehicle conditions and privacy settings, allowing adjustable display areas and luminance compensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a display device is installed in a vehicle to provide content for user convenience, then user convenience and entertainment are improved, but driver distraction and safety risks increase due to inappropriate viewing angles
Solution Approach 1:
The patent applies local quality by creating different viewing angle characteristics for different regions of the display panel. The display panel is divided into multiple regions with different viewing angle ranges, allowing the driver's seat region to have restricted viewing angles while other regions maintain wider viewing angles for passenger entertainment. This resolves the contradiction by providing user convenience in non-driver regions while ensuring driving safety in the driver region.
Solution Approach 2:
The patent implements dynamics by making the viewing angle adjustable rather than fixed. The viewing angle adjustment panel can dynamically change the viewing angle characteristics based on detected user positions and vehicle operating conditions. This allows the system to adapt between providing entertainment convenience and ensuring driving safety depending on the situation, resolving the static contradiction between these two requirements.
2Reliability
If the viewing angle of the display panel is restricted to prevent driver distraction, then driving safety is improved, but the usability and accessibility of the display for legitimate viewers deteriorates
Solution Approach 1:
The patent applies segmentation by dividing the display panel into multiple regions, each with different viewing angle characteristics. The driver's seat region has restricted viewing angles to prevent distraction, while other regions maintain wider viewing angles for passenger access. This segmentation allows the system to simultaneously achieve driving safety and display accessibility for legitimate viewers in different regions.
Solution Approach 2:
The patent implements parameter changes by dynamically adjusting the viewing angle parameters based on detected user positions and vehicle conditions. When the vehicle is in motion, the system changes the viewing angle parameters to restrict driver access while maintaining passenger access. This dynamic parameter adjustment resolves the contradiction by adapting the viewing angle characteristics to the specific operational context.
3Reliability
If the viewing angle is adjusted to protect privacy by restricting content visibility, then privacy protection is improved, but the luminance and visibility of the display for authorized viewers may deteriorate
Solution Approach 1:
The patent applies local quality by implementing different viewing angle restrictions for different regions of the display panel. Regions corresponding to unauthorized viewing positions have restricted viewing angles to protect privacy, while regions corresponding to authorized user positions maintain proper luminance and visibility. This resolves the contradiction by applying privacy protection selectively without compromising the display quality for authorized viewers.
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 enables adjustable viewing angles to prevent driver distraction and protect privacy by restricting content visibility within and outside the vehicle, enhancing safety and privacy.
Implementation Method 1
a viewing angle adjustment panel including at least one liquid crystal layer including liquid crystal molecules
Data Source
AI summary
The present disclosure relates to a display device for a vehicle. This display device for a vehicle according to an embodiment of the present disclosure comprises: a display panel for outputting at least one item of content; a viewing angle adjustment panel comprising at least one liquid crystal layer composed of liquid crystals; and a control unit for changing a viewing angle with respect to the display panel through control of an arrangement of the liquid crystals, wherein the control unit may: determine a first limitation area of the display panel on the basis of a first condition related to driving of a vehicle; determine a second limitation area of the display panel on the basis of a second condition related to privacy; and control the arrangement of the liquid crystals so as to change viewing angles with respect to the first limitation area and the second limitation area. Various other embodiments are possible.