HMD Display Attachment Positions for Comfortable Face Alignment
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Solution Overview
Problem
Existing HMD apparatuses face challenges in adjusting the display unit to a desired position without causing user discomfort due to high degrees of freedom in movement, which requires precise components and increases cost.
Innovation Solution
A video display apparatus with a support member that allows the display unit to be connected and rotated at multiple positions, using a detachable hook mechanism and adjustable connection points to facilitate easy alignment with the user's face shape, reducing the need for high-precision parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If ball joint mechanisms are used to provide high degree of freedom movement, then the display unit can be positioned with flexibility, but the device complexity and manufacturing cost increase due to requiring high-precision parts
Solution Approach 1:
The patent divides the adjustment mechanism into multiple discrete attachment positions rather than using continuous ball joint mechanisms. The display main body can be attached at multiple predetermined positions along the rotation shaft, providing adjustable flexibility while using simpler, less precise components.
Solution Approach 2:
The patent replaces expensive, high-precision ball joint parts with simpler, lower-cost attachment mechanisms. The multiple attachment positions are achieved through basic mechanical features rather than precision-engineered ball joints, reducing manufacturing cost and complexity.
2Ease of operation
If ball joint mechanisms with high precision processing are used, then smooth movement is achieved, but the manufacturing cost increases
Solution Approach 1:
The continuous movement range is segmented into multiple discrete attachment positions. This allows the use of simpler mechanical features for positioning rather than requiring smoothly processed ball joint surfaces, reducing manufacturing difficulty while still providing adequate adjustment capability.
Solution Approach 2:
The patent maintains rotational movement capability through the rotation shaft while adding discrete attachment points. This combines dynamic rotation with static attachment positions, achieving smooth repositioning without requiring high-precision ball joint processing.
3Ease of operation
If multiple attachment positions are provided, then user comfort is improved through better position adjustment, but the device complexity increases
Solution Approach 1:
The rotation shaft serves multiple functions: it provides the rotational movement mechanism and simultaneously hosts multiple attachment positions. This multi-functionality allows position adjustment without adding separate complex mechanisms for each attachment point.
Solution Approach 2:
The patent combines the rotation shaft structure with multiple attachment positions integrated along its length. Rather than adding separate adjustment mechanisms, the attachment positions are incorporated into the existing rotational support structure, minimizing additional complexity.
Data Source
AI summary
A video display apparatus includes a display unit that displays a video, and a support member configured to be connected to and rotatably support the display unit, wherein the display unit and the support member are selectively attachable to each other at one of a plurality of positions.