Head-Mounted Display Adaptive Fit via Segmented Elastic Pads
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Solution Overview
Problem
Conventional head-mounted display devices have limited deformation capabilities, making them unsuitable for users with varying facial contours, resulting in an uncomfortable and insecure fit, particularly for those with smaller facial shapes.
Innovation Solution
The design incorporates two first elastic parts and two second elastic parts with soft pads that can be adjusted to fit different facial contours, allowing the device to be securely attached to the user's face by leaning against cheekbones and ear sections, providing a comfortable and secure experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a one-piece frame is used to attach the head-mounted display device to the user's face, then the device structure is simple and easy to manufacture, but the device cannot adapt to different facial contours resulting in poor fit comfort
Solution Approach 1:
The device divides the contact interface into multiple independent soft pads (first soft pads and second soft pads) that can move and deform independently, allowing each pad to adapt to different facial contours while maintaining overall device simplicity
Solution Approach 2:
The soft pads are connected through elastic parts that allow dynamic movement and deformation, enabling the pads to automatically adjust their positions and shapes to match various facial contours during wearing
2Stability of the object's composition
If the frame is made rigid to maintain structural stability, then the device has good structural stability, but the contact surface deformation is limited reducing adaptability to different face shapes
Solution Approach 1:
The contact surface is segmented into multiple independent soft pads rather than a single rigid surface, allowing localized deformation while the main frame remains stable
Solution Approach 2:
Soft pads made of flexible materials are used instead of rigid contact surfaces, enabling the pads to deform and conform to different facial contours while the rigid frame maintains overall structural stability
3Adaptability or versatility
If soft pads are positioned to match larger facial contours, then the device fits users with larger faces, but users with smaller facial contours cannot achieve a tight attachment
Solution Approach 1:
The soft pads are dynamically positioned through elastic connections that allow automatic adjustment during wearing, enabling reliable attachment for both larger and smaller facial contours
Solution Approach 2:
The positions and shapes of the soft pads are allowed to change dynamically through elastic deformation, adapting to different facial contour parameters rather than being fixed for a specific face size
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
This configuration enables the head-mounted display device to be automatically adjusted to match various facial shapes, ensuring a tight and comfortable fit for most users, even during strenuous activities, by allowing greater deformation and adaptive positioning of soft pads.
Implementation Method 1
the first soft pads and the second soft pads are disposed on these elastic parts; the elastic parts enable the head-mounted display device to be automatically adjusted to be matched with facial contours of different users
Data Source
AI summary
A head-mounted display device including a body, a strap, two first elastic parts, two second elastic parts, two first soft pads and two second soft pads is provided. The body is corresponded to an eye of the user. The strap is connected to the body and adapted to surround a head of a user. The two first elastic parts and the two second elastic parts are disposed on the strap or the body. The two first soft pads are disposed on these first elastic parts. These first soft pads are respectively configured to lean against the left cheek bone of the user and the right cheek bone of the user. The two second soft pads are disposed on these second elastic parts. These second soft pads are respectively configured to lean against the section between the left first soft pad and the left ear of the user and the section between the right first soft pad and the right ear of the user.