Segmented Vehicle Display Privacy for Driver Distraction Control
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Solution Overview
Problem
Existing display devices in vehicles often require the entire screen to be darkened for privacy mode, unnecessarily restricting the driver's view of important information and potentially distracting them with moving entertainment displays.
Innovation Solution
A liquid crystal display (LCD) is divided into segments, each equipped with an electronically switchable privacy screen that blocks the display from the driver's view while allowing visibility from the passenger's position, controlled by detecting and activating privacy mode on segments showing moving entertainment content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the entire screen is darkened for privacy mode, then the driver's view of important information is blocked, but privacy protection is improved
Solution Approach 1:
The display screen is divided into multiple segments or zones, each capable of independent privacy control. This allows selective application of privacy filters to only those segments displaying content that requires privacy protection, while leaving other segments accessible to the driver.
Solution Approach 2:
Different regions of the display screen are assigned different privacy properties. Segments displaying entertainment content for passengers receive privacy protection, while segments showing navigation or safety-critical information remain visible to the driver, creating local quality variations across the display surface.
2Adaptability or versatility
If moving entertainment displays are shown to passengers, then passenger entertainment is improved, but driver distraction and safety are worsened
Solution Approach 1:
The display is segmented into driver-visible areas and passenger-private areas. Moving entertainment displays are confined to passenger segments that are optically isolated from the driver's line of sight, allowing entertainment functionality without compromising driving safety.
Solution Approach 2:
An optical privacy filter or beam director acts as an intermediary between the display screen and the driver's position. This intermediary selectively blocks light paths from entertainment content to the driver while maintaining visibility for passengers, thus mediating between entertainment and safety requirements.
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
Preserves the driver's view of static content while preventing distraction from moving displays, enhancing safety by selectively blocking only distracting content and maintaining the overall visual appearance of the display.
Implementation Method 1
A liquid crystal display (LCD) is divided into segments, each equipped with an electronically switchable privacy screen
Implementation Method 2
each having an electronically switchable privacy screen configured to block the display of an image of the respective segments from the driver's position and to allow the display from the passenger's position
Data Source
Figure 1
Figure 2~3
AI summary
The invention relates to a method for activating a view protection device (20) and to a motor vehicle (10) having a display apparatus (12) that is arranged on a dashboard of the motor vehicle (10), the display apparatus (12) comprising a liquid crystal display which is allocated to at least one front-seat passenger position (14) and is subdivided into a plurality of segments (18). Each segment (18) has an electronically switchable view protection device (20) which is designed, in an activated state, to prevent a display image of the respective segments (18) from being displayed in the viewing direction of a driver position (16) and to allow it to be displayed in the viewing direction of the front-seat passenger position (14) and, in a deactivated state, to allow it to be displayed in both viewing directions. The display apparatus (12) is designed to determine the segments (18) on which a moving entertainment display is being displayed and to activate the view protection device (20) for these segments (18).