Head-Mounted Display Wearing Assembly for Light-Leakage Fit
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Solution Overview
Problem
Existing head-wearable devices, such as VR and AR glasses, face challenges in securely attaching to different head contours, leading to light leakage and discomfort due to gravity-induced displacement and poor fit.
Innovation Solution
A wearable device featuring a C-shaped wearing assembly made of deformable material, designed to match the head contour, with a connection assembly that snaps into the occipital bone, and a protective pad for enhanced comfort, ensuring a secure fit and preventing light leakage by distributing torque evenly through the center of gravity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a head-mounted display is hung in front of the user's face using a tightness-adjustable headloop, then the device can be worn on the head, but the head-mounted display fails to be closely attached to the face due to different head contours, causing light leakage and discomfort
Solution Approach 1:
The headloop is divided into a C-shaped wearing assembly and a separate connection assembly. The C-shaped assembly provides the contour-matching structure while the connection assembly with occipital bone snap-in provides secure anchoring, resolving the contradiction between wearing convenience and attachment stability.
Solution Approach 2:
The C-shaped wearing assembly is designed with a curvature greater than the average curvature of the human head, allowing it to closely conform to different head contours. This curved design enables the assembly to wrap around the head properly, ensuring both comfort and secure attachment without light leakage.
2Reliability
If the head-mounted display is closely attached to the face, then light leakage is prevented, but the device becomes uncomfortable due to gravity-induced displacement and poor fit
Solution Approach 1:
The connection assembly with occipital bone snap-in acts as a counterweight mechanism, anchoring the back of the headloop to the occipital bone to balance the weight of the head-mounted display. This prevents gravity-induced displacement and distributes the weight more evenly, improving both attachment stability and wearing comfort.
Solution Approach 2:
The C-shaped wearing assembly is made of a first deformable material that can flex and conform to the unique contour of each user's head. This flexibility allows the assembly to adapt to different head shapes without creating pressure points or discomfort, while maintaining secure attachment.
3Reliability
If a C-shaped wearing assembly made of deformable material is used to match the head contour, then a secure fit is achieved, but the device complexity increases
Solution Approach 1:
The C-shaped wearing assembly integrates multiple functions into a single component: it provides the contour-matching structure, serves as the headloop, and includes the connection assembly with occipital bone snap-in capability. This merging reduces the number of separate parts needed while achieving secure fit, thereby reducing overall device complexity despite the deformable material requirement.
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 wearable device provides a secure, comfortable fit by generating a tightening force that keeps the head-mounted display attached, preventing light leakage and discomfort, even when the user moves their head, through a design that matches the cranial vault contour and utilizes deformable materials for ergonomic fit and pressure distribution.
Implementation Method 1
a C-shaped wearing assembly matching a head contour of a human body, and a connection assembly, the C-shaped wearing assembly being made of a first deformable material
Implementation Method 2
the other end of the C-shaped wearing assembly is capable of snapping into the occipital bone of the human body
Implementation Method 3
the other end of the connection assembly is connected to the head-mounted display via a connection shaft, and an axial line of the connection shaft passes through a center of gravity of the head-mounted display
Data Source
AI summary
A wearable device is provided which includes: a head-mounted display, a C-shaped wearing assembly matching a head contour of a human body, and a connection assembly, the C-shaped wearing assembly being made of a deformable material; wherein an end of the connection assembly is connected to an end of the C-shaped wearing assembly, the other end of the connection assembly is connected to the head-mounted display via a connection shaft, an axial line of the connection shaft passing through a center of gravity of the head-mounted display; wherein the other end of the C-shaped wearing assembly is snapping into the occipital bone of the human body, such that the head-mounted display fits with the face of the human body. The present disclosure may ensure that the head-mounted display in the wearable device is closely attached to the face of the user, thereby preventing light leakage, wearing comfortlessness, and etc.