Vehicular Display Device Gaze-Based Startability Confirmation
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Solution Overview
Problem
Current vehicular display devices fail to assist drivers in safely transitioning from a stop state to a travel state, as they require the driver to manually shift their gaze from the display unit to the exterior, leading to potential delays and insufficient recognition of the vehicle's startability.
Innovation Solution
A vehicular display device that includes an information screen display, a gazing point position identifier, a monitoring system, a startable state determiner, and a transparentizer, which overlays a situation screen on the display when the vehicle becomes startable, allowing the driver to recognize the surroundings and confirm startability without moving their gaze.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the driver moves their line of sight from the display unit to the landscape outside to recognize the peripheral situation, then the driver can confirm the vehicle's startability, but the time required for starting the vehicle increases and the operation becomes more complex
Solution Approach 1:
The patent introduces a situation recognition screen as an intermediary that displays peripheral situation information (pedestrians, vehicles, obstacles) on the display unit. This allows the driver to obtain situation awareness without moving their gaze from the display unit to the exterior, thereby reducing the time required for starting the vehicle while maintaining reliable recognition of the peripheral situation.
Solution Approach 2:
The patent creates a visual copy of the peripheral situation by capturing images with cameras and displaying them on the situation recognition screen. This copy enables the driver to perceive the external environment through the display unit, eliminating the need to physically move their line of sight and reducing the time and complexity of the starting process.
2Reliability
If the driver moves their line of sight from the display unit to the landscape outside to confirm startability, then the driver can recognize the peripheral situation, but the ease of operation deteriorates
Solution Approach 1:
The situation recognition screen serves as an intermediary that provides startability confirmation information directly on the display unit. The driver can assess whether the vehicle can start by observing the situation recognition screen without moving their gaze or performing additional manual operations, thereby improving ease of operation while maintaining reliable confirmation of startability.
Solution Approach 2:
The display unit performs multiple functions: it displays both the information screen and the situation recognition screen. This multi-functionality allows the driver to access both information and situation awareness through a single interface, eliminating the need to move the line of sight and simplifying the operation of starting the vehicle.
3Device complexity
If the display unit shows only an information screen when the vehicle is in a stop state, then the display is simple, but the driver cannot sufficiently recognize the peripheral situation without moving their gaze
Solution Approach 1:
The patent segments the display content into two distinct screens: the information screen and the situation recognition screen. The situation recognition screen is specifically designed to display peripheral situation information (pedestrians, vehicles, obstacles) captured by cameras. This segmentation allows the driver to access situation awareness through a dedicated interface without complicating the overall display system, as each screen serves a specific function.
Solution Approach 2:
The patent adds a new dimension to the display by introducing the situation recognition screen that overlays or juxtaposes peripheral situation information with the existing information screen. This dimensional addition enables the driver to perceive the external environment through the display unit without moving their gaze, thereby improving recognition reliability without significantly increasing device complexity.
Data Source
AI summary
A vehicular display device includes: an information screen display device that displays an information screen on a display unit when a vehicle stops; a gazing point position identifying device that identifies a position of a driver's gazing point; a gazing point position determining device that determines whether a gazing point position is disposed on the display unit; a monitoring device that starts monitoring of a peripheral situation of the vehicle when the gazing point position is disposed on the display unit; a startable state determining device that determines whether the vehicle is in a startable state, based on the peripheral situation; a situation screen display device that displays a situation screen on a rear side of the information screen in a superimposed manner when the vehicle is in the startable state; and a transparentizing device that transparentizes the information screen.