Positioning, stabilising, and interfacing structures and system incorporating same

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Solution Overview

Problem

Existing head-mounted displays suffer from issues such as obtrusiveness, poor fit, discomfort, and difficulty in adjusting to various head sizes, leading to reduced comfort and shortened usage periods.

Innovation Solution

A positioning and stabilising structure for head-mounted displays that includes a rear support structure with a resiliently extensible hoop, adjustable front and rear support portions, and connectors with adjustment mechanisms to fit different head sizes, along with an interfacing structure featuring adjustable face engaging portions and a self-cleaning textile material.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If a rigid interfacing structure is used to provide structural support, then stability is improved, but comfort deteriorates due to poor fit and pressure points

Engineering Contradiction:

Improvestructural stabilityVSAvoiduser comfort

Core Design Contradiction:

Stability of the object's compositionVSEase of operation

Solution Approach 1:

The interfacing structure is divided into multiple independent face engaging portions (forehead portion, cheek portions, nose portion, chin portion) that can move and adjust independently. Each portion is connected through flexible connectors, allowing the structure to segment and adapt to the unique contours of different user faces, thereby maintaining structural stability while improving comfort and fit.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The interfacing structure transitions from a static rigid design to a dynamic adjustable system. The face engaging portions are made movable relative to each other through flexible connectors, enabling the structure to dynamically adapt to different face shapes and sizes. This dynamic capability allows the rigid structure to conform to individual users while maintaining overall structural integrity.

Inventive Principle:

Principle #15Dynamics

2Stability of the object's composition

If a fixed positioning structure is used to maintain display position, then stability is improved, but adaptability deteriorates due to inability to adjust to various head sizes

Engineering Contradiction:

Improvedisplay position stabilityVSAvoidhead size adaptability

Core Design Contradiction:

Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The positioning structure incorporates adjustable components including extendable arms with telescopic mechanisms and movable face engaging portions. These dynamic elements allow the structure to adjust its dimensions and configuration to fit various head sizes while maintaining stable display positioning through rigid connectors and adjustable fastening mechanisms.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The positioning structure utilizes adjustable parameters such as arm length (through extendable mechanisms), angle of connectors, and position of face engaging portions. These parameters can be modified to accommodate different head sizes and shapes, allowing the same structure to adapt to various users while maintaining stable display positioning through controlled adjustment ranges.

Inventive Principle:

Principle #35Parameter changes

3Ease of manufacture

If non-textile materials are used for the interfacing structure, then ease of cleaning is improved, but hygiene deteriorates due to bacterial accumulation

Engineering Contradiction:

Improvecleaning easeVSAvoidbacterial contamination

Core Design Contradiction:

Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The textile material used in the interfacing structure is treated with silver ions, which have strong antimicrobial properties through oxidation mechanisms. The silver ions embedded in the textile fibers continuously oxidize and destroy bacterial cell walls, providing self-cleaning and hygienic properties while maintaining the comfort and breathability of textile materials.

Inventive Principle:

Principle #38Strong oxidants (Accelerated oxidation)

Solution Approach 2:

The interfacing structure uses composite materials combining textile fibers with silver ion coatings or impregnations. This composite approach merges the comfort and breathability of textiles with the antimicrobial and self-cleaning properties of silver-based materials, creating a hygienic interface that is both comfortable for extended wear and resistant to bacterial contamination.

Inventive Principle:

Principle #40Composite materials

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, adjustability, and extended usage periods by ensuring a secure, comfortable fit and easy adjustment to various head sizes, while also maintaining hygiene with self-cleaning materials.

Implementation Method 1

a resiliently extensible hoop

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentUS12256057B2Positioning, stabilising, and interfacing structures and system incorporating same

Publication Date: 2025.03.18 RESMED ASIA PTE LTD

AI summary

A head-mounted display system includes a head mounted display unit with a display and a positioning and stabilising structure configured to hold the head-mounted display unit in an operable position on the user's head in use. The positioning and stabilizing structure includes headgear with at least one strap configured to contact the user's head, in use. The head mounted display unit and at least a portion of the positioning and stabilizing structure are formed from a one piece construction of textile material.