HMD Image Compensator Adaptive Masking Motion Sickness
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Solution Overview
Problem
Head mount display (HMD) devices cause user discomfort due to motion sickness resulting from a mismatch between visual and vestibular information, leading to symptoms like dizziness and nausea.
Innovation Solution
The HMD device includes a processor with an image compensator that calculates a scaling value to control the size of a masking area in the user's field of view based on motion information, generating compensation image data to reduce the peripheral image size and alleviate motion sickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the full field of view image is displayed in HMD, then the user can see more visual information, but the user experiences motion sickness due to mismatch between visual and vestibular information
Solution Approach 1:
The patent applies local quality by differentiating the treatment of different regions in the visual field. The central region (within the user's actual field of view) displays full-resolution images, while the peripheral region (outside the field of view) applies masking with reduced resolution or blurred content. This localized differentiation reduces the harmful visual-vestibular mismatch in peripheral areas while preserving useful visual information in the central area.
Solution Approach 2:
The patent implements partial action by selectively masking only the peripheral portions of the image that fall outside the user's field of view, rather than applying uniform masking across the entire display. The masking intensity and extent are adjusted based on the degree to which peripheral content exceeds the user's actual visual field, providing just enough reduction to alleviate motion sickness without unnecessarily compromising the overall visual experience.
2Object-affected harmful factors
If the masking area size is increased to reduce motion sickness, then user discomfort decreases, but the viewable image size and information are reduced
Solution Approach 1:
The patent applies dynamics by making the masking area size and intensity adaptive rather than static. The masking parameters are dynamically adjusted based on real-time detection of user motion (acceleration, rotation), viewing conditions, and potentially user preferences. During high-motion periods, masking is intensified to reduce discomfort, while during stable periods, masking is reduced to preserve more visual information, creating a balanced adaptive system.
Data Source
AI summary
A head mount display device includes a display device and a processor. The display device includes an image compensator, a data driver, a scan driver, a timing controller, and a display panel. The image compensator receives an image data corresponding to a user's field of view and motion information, calculates a scaling value that controls a size of a masking area that controls a range of the user's field of view by masking a peripheral portion of an image corresponding to the image data based on the motion information, and generates compensation image data based on the image data and the scaling value.