Wearable Video Display Weight Distribution via Forehead Nose Occipital Support
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Solution Overview
Problem
Conventional HMDs suffer from discomfort due to strong pressing forces required to prevent the display unit from shifting downward, compromising fitting comfort.
Innovation Solution
A wearable video display device with a distributed weight support system, utilizing a forehead support portion, a nose support portion, and occipital support portions to maintain the display unit in place while minimizing pressure points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the pressing force is increased to prevent the display unit from shifting downward, then the stability of the display unit is improved, but the fitting comfort deteriorates
Solution Approach 1:
The patent divides the weight support function into multiple independent support portions: forehead support portion, nose support portion, and occipital support portions. Each support portion independently bears a portion of the device weight, distributing the load across three separate contact points on the user's head rather than concentrating it at one location. This segmentation allows the display unit to remain stable while reducing the pressing force at any single point, thereby improving fitting comfort.
2Object-affected harmful factors
If the total weight of the device is reduced to improve fitting comfort, then the fitting comfort is improved, but the ability to suppress shifting of the display unit deteriorates
Solution Approach 1:
The patent transitions from a conventional two-point support system (front and back) to a three-dimensional distributed support system involving forehead, nose, and occipital regions. By adding the nose support portion as an additional contact point in a different spatial dimension, the device achieves stable weight distribution without requiring excessive pressing force at any single location. This multi-dimensional support configuration maintains display unit stability even with reduced overall device weight.
Data Source
AI summary
The objective of the present invention is to provide a wearable video display device (10) with which the fitting comfort for a user (U) can be improved while suppressing shifting of a display unit (11). The wearable video display device comprises: the display unit (11); a left frame (17) and a right frame (18) which extend in a rearward direction from the display unit and are provided independently of one another; a forehead support portion (26) which accepts a supporting force from a supra-orbital margin of the user's forehead; and a nose support portion (27) that accepts a supporting force from the user's nose. Rear regions of the left frame and the right frame serve as occipital support portions (23, 24) that accept a supporting force from the back of the user's head. The total weight of the wearable video display device is set to 300 gf or less, and the total weight is supported by the forehead support portion, the nose support portion, and the occipital support portions.