Virtual Image Display Cable Routing and Cover Integration
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Solution Overview
Problem
Existing virtual image display apparatuses, such as head mount displays, face challenges in integrating cables for signal transmission while minimizing size and weight, and achieving an increased image angle without degrading image quality, particularly in configurations that allow for a see-through mode.
Innovation Solution
A virtual image display apparatus with a pair of right and left display devices, light guiding members, a frame, and a cover with a cable cover portion that accommodates and arranges cables along the frame, allowing for integral cable formation and suppression of size increase, while providing dust and water proofing through a fitting structure between the frame and cover.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If cables are separately provided on the right and left sides, then signal transmission to each video image element is ensured, but the apparatus becomes more complex and harder to handle
Solution Approach 1:
Multiple cables (power cable, signal cable, ground cable) are bundled together into a single integrated cable assembly that connects to both right and left video image elements, reducing the number of separate cable management operations needed
2Ease of operation
If cables are integrally formed from one location, then ease of handling is improved, but the apparatus size may increase
Solution Approach 1:
The cable cover portion extends in the depth direction (third dimension) from the front surface of the frame, allowing cables to be routed along the frame structure rather than across the front surface, thereby integrating cables without increasing the apparatus's front-facing footprint
3Device complexity
If a cover structure is added to accommodate cables, then cable arrangement is improved, but the apparatus size increases
Solution Approach 1:
A thin cover portion made of flexible or semi-rigid material is used to enclose and organize the cables, providing structural cable management while minimizing the volume occupied by the cover itself
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 solution enables a compact virtual image display apparatus with integrated cables, maintaining image quality and allowing for a see-through configuration by concentrating cable locations and using a flexible cable cover to secure cables, thus enhancing user convenience and reducing the apparatus's visual footprint.
Implementation Method 1
a pair of right and left light guiding members which respectively guide the video image light from the pair of right and left video image elements
Implementation Method 2
the frame and the cable cover portion of the cover has structures which extend along the direction in which the cables are arranged. In such a case, it is possible to cause the frame and the cable cover portion to cooperate and to secure dust proofing and water proofing in the periphery of the cables by a fitting structure between the frame and the cable cover portion
Data Source
AI summary
By arranging cables, which transmit video signals to a pair of video image display elements arranged on the right side and the left side, along a frame for supporting a pair of right and left light guiding devices, it is possible to concentrate the cables on one of the right and left sides. That is, it is possible to integrally form the cables. By accommodating the cables in a cable cover portion, which extends along the frame, in a cover inside, it is possible to suppress an increase in size which accompanies cable arrangement and to implement the apparatus as a whole in a small body.