Relay Apparatus Compact Coupling Head-Mounted Display
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Solution Overview
Problem
Head-mounted display systems face challenges with large remote controllers, making them difficult to handle due to size, necessitating a more compact configuration for effective coupling with the optical visual body.
Innovation Solution
A relay apparatus with a substrate and cables, featuring a first cable and a second cable, where the first cable is coupled to the head-mounted display apparatus and the second cable is coupled to an external device, with connectors on the substrate to manage the thin wires efficiently, reducing the size and enhancing usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the remote controller is made large in size to include all necessary components (battery, power supply circuit, video signal processing circuit, audio signal processing circuit, display control circuit), then the functionality and reliability are improved, but the ease of operation deteriorates due to difficulty in handling
Solution Approach 1:
The remote controller is divided into two separate controllers: a first remote controller with operational switches and a second remote controller with power supply and signal processing circuits. This segmentation allows each controller to be smaller and more manageable while maintaining all necessary functions across the system.
Solution Approach 2:
The head-mounted display apparatus serves as an intermediary device that receives signals from the first remote controller, processes them through the second remote controller's circuits, and outputs the processed signals. This intermediary role enables functional integration without requiring a single large remote controller.
2Reliability
If the first remote controller and second remote controller are made large to include all circuits and components, then the reliability and functionality are improved, but the device complexity increases making coupling to optical visual body difficult
Solution Approach 1:
The system is segmented into multiple independent controllers with specialized functions, allowing each component to be optimized separately and coupled to the head-mounted display in a modular fashion, reducing overall coupling complexity.
Solution Approach 2:
The head-mounted display apparatus is designed to serve multiple functions: it acts as a display device, a signal processor, and a relay apparatus that couples the two remote controllers together, thereby simplifying the overall system architecture.
3Device complexity
If the relay apparatus uses a single cable with all wires connected to one connector, then the device complexity is reduced, but the area and volume increase making it less compact
Solution Approach 1:
The connector is divided into multiple separate connectors, each handling a subset of wires. This segmentation allows for more compact arrangement of connection points on the substrate, reducing the overall area required for the relay apparatus.
Solution Approach 2:
Wires are routed in three-dimensional space around the substrate, with some wires extending in opposite directions from the substrate. This spatial arrangement allows efficient wire management without increasing the footprint of the relay apparatus.
Data Source
AI summary
A relay apparatus for coupling a head-mounted display apparatus to a first external device includes a substrate, a first cable including a plurality of first thin wires, the first cable extending in a first direction and a second cable extending in a direction opposite the first direction. In the relay apparatus, the substrate includes a first surface, a second surface on a backside of the first surface, a first coupling portion to which the plurality of first thin wires are coupled, and a second coupling portion to which the second cable is coupled, the first coupling portion includes a first connector that is located on the first surface and to which a subset of the plurality of first thin wires is coupled, and a second connector that is located on the second surface and to which another subset of the plurality of first thin wires is coupled.