HDMI Relay Device for Head-Mounted Display Signal Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing head-mounted display systems fail to provide an optimal viewing experience by not effectively managing image aspect ratios, brightness adaptation, and user comfort, particularly in relaying reproduction signals to multiple display devices while ensuring proper dark adaptation and visual distance perception.
Innovation Solution
The system includes a head-mounted display with adjustable image processing units that manage image aspect ratios, brightness correction based on dark adaptation and external light conditions, and a relay device for prioritizing signal output to ensure optimal viewing comfort and clarity across multiple display devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the reproduction signal is output to multiple display devices simultaneously, then the versatility and usability of the system is improved, but the signal management complexity and potential for improper display increases
Solution Approach 1:
The invention introduces a relay device as an intermediary component between the reproduction device and multiple display devices. The relay device receives the reproduction signal and selectively outputs it to different display devices based on aspect ratio matching, thereby simplifying the signal management complexity while maintaining the ability to connect to multiple displays.
Solution Approach 2:
The system dynamically switches the output destination of the reproduction signal based on the aspect ratio of the content being played. The relay device can adaptively route the signal to the most appropriate display device, changing the system configuration in real-time according to the content requirements rather than maintaining a fixed connection.
2Ease of operation
If the virtual image distance is fixed, then the optical system design is simplified, but the user comfort and viewing experience deteriorates when viewing different types of content
Solution Approach 1:
The head-mounted display optically system is designed to dynamically adjust the virtual image distance based on the aspect ratio of the displayed content. When viewing wide-screen content (16:9), the optical system adjusts to position the virtual image at a farther distance (e.g., 15 meters), while for standard television content (4:3), it adjusts to a closer distance (e.g., 3 meters), thereby maintaining user comfort across different content types.
Solution Approach 2:
The optical system changes key parameters including the virtual image distance and magnification factor based on the content aspect ratio. By adjusting these optical parameters dynamically, the system provides optimized viewing conditions for different content types without requiring complex mechanical adjustments, leveraging optical design flexibility.
3Ease of operation
If the display device continuously monitors and adjusts brightness, then the user comfort during dark adaptation is improved, but the energy consumption increases
Solution Approach 1:
The system performs preliminary detection of the user's dark adaptation state when the head-mounted display is first mounted or when transitioning from bright to dark environments. Based on this initial detection, the display brightness is pre-adjusted to appropriate levels, avoiding the need for continuous monitoring and adjustment thereafter, thereby reducing energy consumption while maintaining user comfort.
Solution Approach 2:
The system incorporates feedback mechanisms that detect user response to brightness levels and environmental light conditions. This feedback allows the system to make intelligent brightness adjustments based on actual user needs and environmental conditions, optimizing the balance between user comfort and energy consumption by avoiding unnecessary adjustments.
Data Source
AI summary
A reproduction signal output from a reproduction device is output via a relay device to two or more display devices including an excellent display device that is used by being mounted on the head of a user.A connection monitoring circuit in a front end box 40 monitors both a +5V signal of a source appliance that is HDMI-connected to an HDMI input unit 501, and an HPD signal of a sink appliance that is HDMI-connected to a second output unit 503. Then, only when an HPD signal emitted by the HDMI sink appliance is detected together with a +5V signal emitted by the HDIM source appliance does the connection monitoring circuit in the front end box 40 enables a repeater function with respect to the HDMI sink appliance.