Facial Interface Bumper Structure for VR Fit and Eye Distance
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Solution Overview
Problem
Current head-mounted display devices are often heavy, lack consistent points of contact on the user's head, leading to discomfort and ill-fitting issues for users with different facial features and head shapes, affecting media quality, eye focus, airflow, and overall comfort.
Innovation Solution
The devices incorporate a facial interface with a bumper featuring multiple portions of varying firmness, including a firmer section for structural support and a softer section for comfort, along with adjustable and removable components to conform to diverse facial shapes, maintaining optimal distance and reducing pressure points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the head-mounted display device uses a heavy frame structure to support the display and lens, then the structural strength and stability are improved, but the weight increases causing discomfort and pressure points on the user's face
Solution Approach 1:
The facial interface is divided into multiple portions (first portion, second portion, third portion) with different firmness characteristics. The first portion provides structural support while the second and third portions provide comfort through softer materials, allowing the device to distribute weight and pressure across different facial regions rather than concentrating it at single points.
Solution Approach 2:
Different portions of the facial interface are assigned different material firmness properties. The first portion uses firmer material for structural integrity and support, while the second and third portions use softer material for comfort and pressure distribution. This local differentiation allows the same component to simultaneously provide strength and reduce weight-related discomfort.
2Manufacturing precision
If the facial interface is designed with fixed contact points to maintain optimal display distance, then the media quality and eye focus are improved, but the device cannot accommodate users with different facial features and head shapes
Solution Approach 1:
The facial interface portions are designed to be compressible and adaptable rather than rigid and fixed. The different firmness levels allow the interface to dynamically conform to various facial shapes and sizes while maintaining the optimal distance between the display and the user's eyes, accommodating diversity in facial features without sacrificing display precision.
Solution Approach 2:
The material firmness parameter is varied across different portions of the facial interface. This parameter change allows the same interface structure to adapt to different users' facial geometries while maintaining consistent optical parameters (display distance), thereby achieving both precision and adaptability simultaneously.
3Adaptability or versatility
If the bumper is made fully removable and adjustable to fit different faces, then the adaptability and comfort are improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The facial interface is segmented into multiple portions that can be independently adjusted or removed. This segmentation allows users to customize the fit for different facial shapes without requiring complete redesign of the entire interface, reducing the complexity compared to a fully customizable modular system while maintaining high adaptability.
Solution Approach 2:
The facial interface design incorporates universal features that can accommodate multiple user types through simple adjustments rather than multiple specialized components. The different firmness portions work together as a unified system that provides both adaptability and simplicity, avoiding the need for complex assembly mechanisms.
Data Source
AI summary
A head-mountable display device can include a display portion with a frame and a bumper. The bumper can be configured to contact a user's head when the head-mountable display device is donned. The bumper can include multiple sections configured with different material properties, include different characteristics, provide different user experiences, and to maintain a comfortable and effective distance between the lenses or displays of the display device and a user's eyes.