Retinal Projection for Wearable Display Interaction
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Solution Overview
Problem
Wearable devices with weak display capabilities, such as smart watches and smart glasses, face challenges in providing effective interaction with users due to their limited display and processing capabilities, leading to inconvenient interaction methods and user experience issues like dizziness from frequent gaze shifts between display interfaces.
Innovation Solution
An interactive projection display method and system that projects virtual display content near the wearable device at the user's fundus, using location and display information to generate and project virtual content, allowing users to interact more conveniently and improving the user experience by simulating a display directly from the wearable device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If data is exported to a device with strong display capabilities (computer or smartphone), then display capability is improved, but interaction convenience deteriorates due to inability to interact in real time
Solution Approach 1:
The patent introduces a projection device as an intermediary between the wearable device and the user's visual system. The projection device projects virtual images directly onto the retina, enabling real-time interaction while maintaining the wearable device's portability and data processing capabilities.
Solution Approach 2:
The patent transitions from traditional external display interfaces to an internal retinal projection dimension. By projecting images directly onto the retina, the system creates a new interaction dimension that combines the portability of wearable devices with the display capability of larger screens.
2Illumination intensity
If smart glasses are used to enhance display capability, then display capability is improved, but user experience deteriorates due to dizziness from frequent gaze switching
Solution Approach 1:
The patent uses the retina as an intermediary surface for direct image projection, eliminating the need for gaze switching between multiple display interfaces. The virtual images are projected directly onto the retinal plane, allowing users to view content without moving their eyes or head.
Solution Approach 2:
The patent merges the display function with the user's visual system by projecting images directly onto the retina. This combination eliminates the separation between display device and user viewpoint, preventing dizziness caused by gaze switching while enhancing display capability.
3Weight of moving object
If wearable devices are made compact and lightweight, then ease of wear is improved, but display capability deteriorates
Solution Approach 1:
The patent moves the display function from an external physical dimension to an internal retinal projection dimension. By projecting images directly onto the retina, the system achieves high display capability without requiring large or heavy external display components, maintaining wearable device compactness.
Solution Approach 2:
The patent introduces a projection system as an intermediary that delivers high-resolution images directly to the retina. This intermediary approach allows compact wearable devices to achieve enhanced display capability through optical projection rather than large physical displays.
Data Source
AI summary
Disclosed are an interactive projection display method and an interactive projection display system. The method comprises: obtaining to-be-displayed location information corresponding to a coordination device; obtaining display information corres-ponding to the coordination device; generating, according to the display information, virtual display content corresponding to the coordination device; and projecting the virtual display content to a location corresponding to the to-be-displayed location information at a fundus of a user. According to the method and the system, virtual display content, used to interact with a user, of a coordination device is projected near the coordination device, to cause interaction between the user and the coordination device to be more convenient.