Head-Mounted Display Silicone Interface for Even Face Pressure
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Solution Overview
Problem
Existing head-mounted displays suffer from issues such as light pollution, discomfort due to clamping pressure, difficulty in adjusting for various head sizes, and poor fit, leading to reduced usability and enjoyment, especially during prolonged use.
Innovation Solution
A positioning and stabilising structure for head-mounted displays that includes a rear support structure with a hoop and adjustable components, such as extensible and flexible straps, along with an interfacing structure featuring varying compliance and adjustable face engaging portions, to ensure a comfortable and secure fit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional force is applied to force the display unit against the face, then sealing contact is improved, but user comfort deteriorates due to clamping pressure
Solution Approach 1:
The positioning and stabilising structure is divided into multiple engagement points including forehead engagement, temporal engagement, and occipital engagement. This segmentation distributes the clamping force across different regions of the head rather than concentrating it at one point, maintaining sealing contact while reducing localized discomfort
Solution Approach 2:
The interfacing structure incorporates regions of varying compliance with different stiffness characteristics. Softer regions engage with softer facial tissues while more rigid regions provide structural support, allowing the structure to conform to the unique geometry of each user's face and achieve sealing contact without excessive clamping pressure
2Stability of the object's composition
If the interfacing structure is made rigid to maintain shape, then structural stability is improved, but adaptability to different face shapes deteriorates
Solution Approach 1:
The interfacing structure utilizes materials and designs that allow compliance parameters to vary across different regions. The structure can deform elastically to match different face geometries while maintaining overall structural integrity through strategically placed rigid elements that prevent excessive deformation
3Stability of the object's composition
If the positioning structure is made heavy to provide stability, then display unit stability is improved, but user comfort deteriorates
Solution Approach 1:
The positioning and stabilising structure includes a rear support structure that extends to the occipital region of the user's head, providing a counterbalancing support point that offsets the weight of the display unit. This occipital support acts as a counterweight arrangement, distributing the load more evenly across the head and reducing the effective weight burden on the forehead and face
4Ease of manufacture
If the interfacing structure is made simple to manufacture, then ease of manufacture is improved, but adaptability to different head sizes deteriorates
Solution Approach 1:
The positioning and stabilising structure incorporates adjustable elements that allow the structure to be dynamically reconfigured for different head sizes. The structure transitions from a static fixed design to a dynamic adjustable system where components can be repositioned or reconfigured to accommodate various user anatomies without requiring multiple different structures
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 provides improved comfort and reduced light pollution by distributing force evenly, accommodating different head sizes, and maintaining the display unit in position, enhancing the overall user experience.
Implementation Method 1
a resilient component configured to allow the temporal arm to flex
Data Source
Figure 1a
Figure 1b
Figure 1c
AI summary
A head-mounted display system includes a positioning and stabilising structure structured and arranged to hold a display unit in an operational position over a user's face in use and an interfacing structure for the display unit constructed and arranged to be in opposing relation with the user's face. The interfacing structure comprises a substantially continuous face engaging surface adapted to contact the user's face around a periphery of the user's eyes. The interfacing structure comprises silicone. The interfacing structure is configured and arranged such that force applied to the user's face is distributed around the periphery thereof. The interfacing structure comprises a first compliance at a first region and a second compliance at a second region, wherein the first region and the second region are configured around the periphery of the interfacing structure to allow selective distribution of the force onto the user's face.