Head-Mounted Display Pivot Support for Constant-Gap Rotation

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Solution Overview

Problem

Conventional head-mounted display devices have an exposed hinge that changes size as it rotates, leading to an unattractive appearance and potential hair pulling, and additional covers to hide the hinge increase manufacturing costs.

Innovation Solution

A head-mounted display device with a supporter that pivots on a fixed axis, maintaining a constant width gap and eliminating the need for a traditional hinge, ensuring smooth rotation and reducing gaps to enhance appearance and prevent hair pulling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a traditional hinge is used to adjust the head-mounted display device, then the device can adapt to different head sizes, but the exposed gap of the hinge changes as it rotates, leading to unattractive appearance

Engineering Contradiction:

Improveadaptability to different head sizesVSAvoidappearance attractiveness

Core Design Contradiction:

Adaptability or versatilityVSShape

Solution Approach 1:

The patent extracts the harmful visible gap from the system by using a pivot connection that maintains constant contact between the supporter and headband, eliminating the exposed gap problem of traditional hinges while preserving the adjustment function for different head sizes

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces a pivot as an intermediary connection mechanism between the supporter and headband. This pivot acts as a mediator that enables size adjustment while maintaining constant gap width, resolving the contradiction between adaptability and appearance

Inventive Principle:

Principle #24Intermediary (Mediator)

2Shape

If an additional appearance cover is added to hide the hinge, then the appearance becomes attractive, but the manufacturing cost increases

Engineering Contradiction:

Improveappearance attractivenessVSAvoidmanufacturing cost

Core Design Contradiction:

ShapeVSEase of manufacture

Solution Approach 1:

The patent extracts the need for additional appearance covers by designing a pivot connection where the gap width remains constant and aesthetically pleasing without requiring extra covering components, thus maintaining attractiveness while reducing manufacturing complexity

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The pivot connection structure serves its own aesthetic function by maintaining constant gap width, eliminating the need for separate appearance cover components and reducing manufacturing costs

Inventive Principle:

Principle #25Self-service

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 device maintains an attractive appearance by keeping the gap width constant and prevents hair pulling, enhancing user experience and reducing manufacturing costs.

Implementation Method 1

The supporter is pivotally connected to the connection portion by taking an axis as a rotation axis

Methodology Applied

Scientific EffectFixed axis rotation: Axle

Data Source

PatentUS12399374B2Head-mounted display device

Publication Date: 2025.08.26 HTC CORP

AI summary

A head-mounted display device includes a main body and a supporter. The main body has a connection portion. The supporter is pivotally connected to the connection portion by taking an axis as a rotation axis. There is a first gap between the supporter and the connection portion on one side away from a user's head. A width of the first gap remains constant during rotation of the supporter relative to the connection portion.