Stereoscopic Display Vergence-Accommodation Conflict Resolution
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Solution Overview
Problem
Existing stereoscopic display technologies often cause user discomfort and fatigue due to the vergence-accommodation conflict, where the stimulus to vergence is manipulated to simulate depth, but the stimulus to accommodation remains fixed, leading to issues like double images and reduced user experience.
Innovation Solution
A computing device adjusts display properties of stereoscopic images, such as contrast and obscuration, based on factors like time, vergence distance, and contextual data, to minimize the vergence-accommodation conflict and enhance user comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If conventional stereoscopic display manipulates vergence stimulus to simulate depth, then 3D depth perception is improved, but accommodation stimulus remains fixed causing user discomfort and fatigue
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting display properties (contrast, obscuration, positioning) based on vergence distance and temporal factors. This resolves the contradiction by modifying how depth is presented without requiring physical accommodation changes, thereby maintaining 3D perception while reducing the harmful fixed-accommodation conflict.
Solution Approach 2:
The patent introduces dynamics by making display properties adjustable and adaptive rather than static. The system continuously monitors vergence distance and temporal context to dynamically modify image presentation, allowing the display to adapt to changing viewing conditions and reduce discomfort over time.
2Shape
If images are positioned to simulate different depths, then stereoscopic 3D effect is improved, but double images and visual confusion occur
Solution Approach 1:
The patent applies local quality by selectively adjusting display properties of specific images or image regions based on their vergence distance and contextual importance. Rather than uniformly treating all images, the system applies localized modifications to enhance fusion for critical elements while maintaining depth perception, thereby resolving the contradiction between depth effect and image clarity.
Solution Approach 2:
The patent implements feedback mechanisms by using contextual data and vergence distance information to guide display property adjustments. The system monitors viewing conditions and uses this feedback to optimize image positioning and properties, ensuring that depth simulation does not compromise image fusion or cause double images.
3Object-affected harmful factors
If display properties are adjusted based on multiple factors, then user comfort is improved, but system complexity increases
Solution Approach 1:
The patent applies universality by designing a multi-functional display system that handles multiple tasks through integrated processing. The same system components that render stereoscopic images also monitor vergence distance, analyze contextual data, and adjust display properties, thereby reducing the need for separate dedicated systems and mitigating the complexity increase.
Solution Approach 2:
The patent merges multiple functions into unified processing streams. Rather than treating vergence distance calculation, contextual analysis, and display property adjustment as separate systems, the patent integrates them into a coordinated framework where shared data and processing reduce overall system complexity despite the multiple factors involved.
Data Source
AI summary
Stereoscopic display technologies are provided. A computing device generates a stereoscopic display of an object by coordinating a first image and a second image. To reduce discomfort or to reduce diplopic content, the computing device may adjust at least one display property of the first image and/or the second image depending on one or more factors. The factors may include a time period associated with the display of the object, the vergence distance to the object, the distance to the focal plane of the display, contextual data interpreted from the images and/or any combination of these and other factors. Adjustments to the display properties can include a modification of one or more contrast properties and/or other modifications to the images. The adjustment to the display properties may be applied with varying levels of intensity and/or be applied at different times depending on one or more factors and/or contextual information.