Vehicle Display Overlay Timing for Smooth Moving-Body Exit

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Solution Overview

Problem

Existing head-up display systems in vehicles may cause unease for occupants due to sudden disappearance or continuous display of overlay images when moving bodies exit the display area, leading to unsettled feelings.

Innovation Solution

A display control device that acquires information on moving bodies in the vehicle's surroundings and continues to display a specific image on the vehicle's display area until a specific period has elapsed after the moving body exits, adjusting the image's mode based on distance and brightness to alleviate the occupant's unsettled feeling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If the mark image is displayed at a changed time frequency when the lead vehicle exits the display area, then the information about the lead vehicle is updated, but the occupant may feel uneasy or unsettled due to sudden disappearance or continuous display

Engineering Contradiction:

Improveinformation update about lead vehicleVSAvoidoccupant unease and unsettled feeling

Core Design Contradiction:

Loss of informationVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary action by continuing to display the mark image for a predetermined time period after the lead vehicle has exited the display area. This advance continuation of display prevents the sudden disappearance that causes occupant unease, while still providing timely information update by automatically removing the mark after the predetermined time elapses.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system applies beforehand cushioning by maintaining the mark image display during the transition period after the lead vehicle exits. This cushioning period acts as a buffer that smooths the transition from displayed to non-displayed state, preventing the abrupt change that causes unsettled feelings in the occupant.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

2Object-affected harmful factors

If the mark image continues to be displayed after the lead vehicle exits the display area, then the occupant's unsettled feeling is reduced, but the display may become inaccurate or misleading

Engineering Contradiction:

Improveoccupant unsettled feelingVSAvoiddisplay accuracy

Core Design Contradiction:

Object-affected harmful factorsVSManufacturing precision

Solution Approach 1:

The system applies parameter changes by modifying the display state of the mark image over time. Specifically, the mark image continues to be displayed but with the understanding that it represents historical position information rather than real-time position. After the predetermined time period, the display parameter changes from active to inactive, maintaining accuracy while reducing occupant unease during the transition.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12427924B2Display control device, display program storage medium, and display method

Publication Date: 2025.09.30 TOYOTA JIDOSHA KK

AI summary

A display control device includes: a memory; and a processor coupled to the memory and configured to: acquire information of a moving body in surroundings of a vehicle; and display a specific image on a display area provided to the vehicle according to a position of the moving body based on the acquired information of the moving body, the specific image being displayed either overlaid on or adjacent to the moving body; and in a case in which the moving body inside the display area has exited from the display area, continue to display the specific image until a specific period of time has elapsed.