3D Screen Overlay Cues for Vehicle Motion Sickness Mitigation

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Solution Overview

Problem

Existing visual cues to reduce motion sickness in vehicles only indicate acceleration in one or two dimensions, failing to account for the component normal to the screen, which is a key component of real-world acceleration, and thus are ineffective in mitigating motion sickness.

Innovation Solution

A three-dimensional overlay effect is displayed on a device screen, using semitransparent figures that react to detected acceleration, creating an illusion of movement in three dimensions by adjusting size and distance, and optionally incorporating horizontal and vertical movements, to align with vestibular system inputs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If two-dimensional visual cues are used to indicate acceleration, then screen space is preserved, but motion sickness mitigation is insufficient because the normal component of acceleration is not represented

Engineering Contradiction:

Improvemotion sickness mitigation effectivenessVSAvoidacceleration dimension representation

Core Design Contradiction:

ReliabilityVSLoss of information

Solution Approach 1:

The patent applies dimensionality change by transitioning from 2D visual cues to 3D visual cues that represent acceleration in three dimensions including the normal component. The overlay includes visual elements that move not only horizontally and vertically but also in depth, creating a three-dimensional representation of acceleration that matches the vestibular system's three-dimensional perception.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Reliability

If three-dimensional overlay effects are implemented, then motion sickness mitigation is improved by representing all acceleration components, but screen space requirements increase

Engineering Contradiction:

Improvemotion sickness mitigation effectivenessVSAvoidscreen space availability

Core Design Contradiction:

ReliabilityVSArea of stationary object

Solution Approach 1:

The patent merges the motion indication overlay with the existing display content by using semitransparent visual elements that can be superimposed over the screen. This allows the 3D acceleration cues to be combined with the primary display content without requiring separate dedicated screen space, as the overlay integrates with rather than replaces the existing interface.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent uses semitransparent overlay elements that function like thin films, allowing light from the display to pass through while still providing visible motion cues. This semitransparency enables the overlay to occupy minimal visual space while maintaining effectiveness, as users can see through the overlay elements to the content behind them.

Inventive Principle:

Principle #30Flexible shells and thin films

Data Source

PatentUS12561864B2Acceleration-based screen effects to prevent vehicle passenger motion sickness

Publication Date: 2026.02.24 ADEIA GUIDES INC

AI summary

The present disclosure is directed to systems and methods for reducing or preventing motion sickness using an animated overlay displayed over a content item and reflecting a detected acceleration. In some embodiments the systems and methods generate for display, on a device, a content item. The systems and methods determine an acceleration of the device along a vector, where the vector comprises a vector component that is normal to a plane defined by the display of the content item. The systems and methods then generate for display a graphical overlay over the display of the content item, wherein the graphical overlay is animated to appear to move in a direction defined by the vector comprising the vector component that is normal to the plane defined by the display.