Head-Mounted Display Interface Structure for Light Sealing and Comfort
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Solution Overview
Problem
Existing head-mounted displays suffer from discomfort due to clamping pressure, poor fit, and light leakage, especially during prolonged use, limiting their usability and user experience.
Innovation Solution
A positioning and stabilizing structure with a posterior support and anterior connectors, combined with an interfacing structure that includes adjustable, magnetically attachable shields and vents, provides customizable sealing and airflow to enhance comfort and reduce light intrusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a head-mounted display uses a rigid clamping structure to secure the display unit, then the display unit is firmly positioned, but user comfort deteriorates due to excessive clamping pressure and skin irritation
Solution Approach 1:
The patent employs a flexible interfacing structure comprising a forehead portion, nasal portion, and cheek portions that conform to the user's facial contours. This flexible interface distributes clamping pressure across multiple facial regions rather than concentrating force at single points, thereby maintaining secure display positioning while reducing skin irritation and discomfort during prolonged use
Solution Approach 2:
The interfacing structure is divided into multiple segmented components including forehead portions, nasal portions, and cheek portions that can independently adapt to different facial geometries. This segmentation allows each component to optimize its contact pressure locally, improving overall comfort while maintaining reliable display unit securing
2Illumination intensity
If the head-mounted display provides a sealed structure to block ambient light, then visual immersion is improved, but user comfort deteriorates due to trapped heat and lack of airflow
Solution Approach 1:
The patent incorporates breathable porous materials in the interfacing structure that allow airflow and heat dissipation while maintaining sufficient ambient light blocking for immersive visual experience. The porous structure enables thermal management by permitting air circulation between the display unit and user's face, preventing heat accumulation during prolonged use
3Ease of manufacture
If the head-mounted display uses a fixed interfacing structure, then manufacturing is simplified, but adaptability deteriorates due to poor fit across different user face shapes
Solution Approach 1:
The interfacing structure is designed with dynamic flexibility allowing it to adapt to various facial geometries. The flexible material composition and articulated joint design enable the structure to deform and conform to different user face shapes while maintaining secure contact, achieving universal adaptability without requiring multiple fixed-size variants
4Stability of the object's composition
If the head-mounted display uses a heavy positioning structure to counteract display weight, then stability is improved, but user comfort deteriorates due to increased overall weight on the user's head
Solution Approach 1:
The patent strategically positions the display unit and positioning structure to balance the center of gravity, with the display unit positioned directly in front of the user's eyes and the positioning structure extending to the back of the head. This counterbalancing arrangement minimizes the torque and additional weight burden on the user's head while maintaining stable display positioning
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution improves user comfort and extends wearability by reducing clamping pressure and light leakage, allowing for immersive experiences without skin irritation and distractions.
Implementation Method 1
adjustable, magnetically attachable shields
Data Source
AI summary
An interfacing structure for a head-mounted display system has a face engaging portion configured to engage around a periphery of the user's eye region; and a chassis portion configured to support the face engaging portion and to connect to a display unit housing. The interfacing structure has cheek portions configured to engage the user's cheeks, a pair of sphenoid portions configured to engage sphenoid regions of the user's head, and a forehead portion configured to engage the user's forehead. The chassis portion defines at least one opening positioned around the periphery of the user's eye region within the user's field of view. The interfacing structure is configured to be convertible between: a non-immersive mode in which the user is able to see through the opening; and an immersive mode in which light is substantially prevented from passing through the opening.