Head-Mounted Display Cable Routing via Opposing Substrate Surfaces
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Solution Overview
Problem
Existing head-mounted display devices face complexity in routing cables due to independent left and right display elements, leading to complicated wiring within the device.
Innovation Solution
A head-mounted display apparatus with a frame that includes substrate placement units for a video-image substrate, where the substrate is mounted above each display unit, and cables are drawn out from opposing surfaces of the substrate to minimize cable thickness and improve routing within the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If cables are integrated within the frame to connect independent left and right display elements, then the device structure is consolidated, but the wiring lines within the frame become complicated
Solution Approach 1:
The patent utilizes the thickness dimension of the frame to route cables. By providing a first cable routing along the front surface of the frame and a second cable routing along the rear surface, the invention transforms a two-dimensional wiring problem into a three-dimensional solution, effectively separating cable paths and reducing wiring complexity while maintaining structural consolidation
2Volume of moving object
If cables are routed within the limited space of the head-mounted display frame, then the device remains compact, but the routing space becomes insufficient
Solution Approach 1:
The invention exploits the thickness dimension of the frame structure to create adequate cable routing space. By distributing cables across the front and rear surfaces along the thickness direction, sufficient routing area is achieved without increasing the overall volume of the head-mounted display device
Solution Approach 2:
The cable routing is segmented into multiple independent paths: first cable routing along the front surface, second cable routing along the rear surface, and third cable routing through the thickness direction. This segmentation allows each cable to have its own dedicated space, reducing interference and improving routability within the compact form factor
3Volume of moving object
If multiple cables are routed closely together within the frame, then the device size is minimized, but the risk of cable damage during assembly increases
Solution Approach 1:
Cables are segmented into separate routing paths along the front and rear surfaces of the frame, with each cable having its own dedicated groove. This physical separation reduces cable-to-cable interference and makes assembly more manageable, lowering the risk of damage during the assembly process while maintaining compact device dimensions
Data Source
AI summary
A display device includes a frame supporting a first display unit and a second display unit. A substrate placement unit includes a first substrate placement unit located above the first display unit and a second substrate placement unit located above the second display unit. A video-image substrate at which a video-image processing circuit is mounted is disposed at one of the first substrate placement unit or the second substrate placement unit. The video-image processing circuit is configured to output a video image to the first display element and the second display element. A first drawing-out portion at which the first cable is drawn out is provided at one surface of the video-image substrate, and a second drawing-out portion at which the second cable is drawn out is provided at the other surface of the video-image substrate.