Head-Mountable Display Securement and Light Sealing
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Solution Overview
Problem
Current head-mountable display systems face challenges in providing comfortable and effective virtual and mixed reality experiences due to limitations in display design, securement mechanisms, and light sealing, which affect user interaction and immersion.
Innovation Solution
A head-mountable display device with a housing featuring a front and rear opening, a display screen, and securement straps with electronic components, including a speaker and computing component, and a flexible textile securement band that follows the user's face contours, along with an adjustment mechanism for optimal display positioning and light sealing to prevent external light intrusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional securement mechanisms are used, then device assembly is simple, but user comfort and security are insufficient
Solution Approach 1:
The securement system is divided into multiple independent components: a head strap with first and second portions, a forehead strap, and a chin strap. Each component can be independently adjusted and secured, allowing customized fit while maintaining manageable complexity through modular design
Solution Approach 2:
The securement straps incorporate adjustable mechanisms that allow dynamic modification of the fit. The head strap portions can be adjusted relative to each other, and the forehead and chin straps can be independently positioned, enabling adaptation to different user head shapes and sizes for optimal comfort
2Manufacturing precision
If display positioning is fixed, then device structure is simple, but display optimization for different users is limited
Solution Approach 1:
The display assembly is made adjustable through a mechanism that allows it to be positioned at different locations within the housing and oriented at various angles. This dynamic positioning capability enables optimization for different users' facial contours and viewing preferences while maintaining a relatively compact adjustment mechanism
Solution Approach 2:
The display positioning system allows modification of key parameters including the longitudinal position along the optical axis, lateral displacement, and angular orientation. These parameter adjustments can be made through a unified mechanism that modifies multiple parameters simultaneously or independently to achieve optimal display alignment for each user
3Object-affected harmful factors
If light sealing is insufficient, then device structure is simple, but external light intrusion affects immersion
Solution Approach 1:
The light sealing system utilizes a flexible curtain that can conform to the user's facial contours. This flexible membrane structure provides effective light blocking while adapting to different face shapes, and the flexibility allows the curtain to be positioned precisely without requiring a rigid complex framework
Solution Approach 2:
The light curtain is designed to follow the curvature of the user's face, conforming to the spherical or oval contours of the head and face. This curved geometry allows the sealing element to wrap around the user's features effectively, blocking external light from reaching the eyes while maintaining a simple overall structure through the use of a single continuous curved surface
4Ease of operation
If display curvature does not follow face contours, then manufacturing is simpler, but user comfort and immersion are reduced
Solution Approach 1:
The display curvature is made adjustable rather than fixed, allowing the curvature radius and orientation to be modified to match different users' facial contours. This dynamic adjustment capability enables high precision fitting for individual users while using a standardized display component that can be adjusted post-manufacturing
Solution Approach 2:
The display curvature parameters including radius of curvature, orientation angle, and position can be independently adjusted to match the specific geometry of each user's face. This parameter modification approach allows manufacturing of a standardized display with adjustable curvature rather than custom-molded displays, balancing manufacturing simplicity with precision fitting
Data Source
AI summary
A head-mountable display device includes a housing defining a front opening and a rear opening, a display screen disposed in the front opening, a display assembly disposed in the rear opening, a first securement strap coupled to the housing, the first securement strap including a first electronic component, a second securement strap coupled to the housing, the second securement strap including a second electronic component, and a securement band extending between and coupled to the first securement strap and the second securement strap.