Vehicle Image Display Device Superimposition Control

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Solution Overview

Problem

Displaying images both inside and outside a vehicle can cause confusion for occupants due to superimposition of transmissive and road-surface images, making it difficult for them to accurately understand the information being displayed.

Innovation Solution

An image display device with a first image display unit for transmissive images inside the vehicle and a second image display unit for road-surface images, featuring a detection unit and a controller that stops displaying one of the images when they appear superimposed, ensuring only one image is visible to the occupant.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If images are displayed both inside and outside the vehicle at different locations, then information can be provided to both the driver and surrounding persons, but the occupant may become confused and have difficulty accurately understanding the information

Engineering Contradiction:

Improvedisplay capabilityVSAvoidinformation accuracy

Core Design Contradiction:

Adaptability or versatilityVSLoss of information

Solution Approach 1:

The display controller continuously monitors the positions and states of both the transmissive image and road-surface image, and automatically adjusts display status based on this feedback to prevent superimposition and ensure information accuracy

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system proactively stops displaying one of the images before superimposition occurs by monitoring their relative positions and predicting potential overlap, thereby preventing confusion before it happens

Inventive Principle:

Principle #10Preliminary action

2Productivity

If a transmissive image is displayed inside the vehicle and a road-surface image is displayed outside the vehicle, then multiple information channels are provided, but visual confusion occurs when the images appear superimposed

Engineering Contradiction:

Improveinformation delivery efficiencyVSAvoidvisual confusion

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

When superimposition is detected or predicted, the system extracts one of the images from the display system by stopping its display, thereby removing the harmful visual overlap while maintaining the other information channel

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The display system dynamically adjusts its operation by switching between displaying both images, displaying only one image, or changing their positions based on real-time spatial relationships, making the system adaptable to prevent visual confusion

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS10558416B2Image display device

Publication Date: 2020.02.11 SUBARU CORP

AI summary

Provided is an image display device for a vehicle, in which the vehicle travels on a road and includes a first image display unit that displays a transmissive image inside the vehicle for an occupant. The image display device includes a second image display unit and a display controller. The second image display unit displays a road-surface image on a road surface of the road. The display controller stops displaying any one of the transmissive image and the road-surface image, on the condition that the transmissive image displayed by the first image display unit and the road-surface image displayed by the second image display unit appear superimposed on each other.