Wearable Display Adjustment for Visual Acuity Matching
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Solution Overview
Problem
Existing wearable devices fail to adapt the display content size and position based on the user's visual acuity, leading to suboptimal user experience in augmented reality applications.
Innovation Solution
A wearable device with a display assembly that adjusts the distance and size of virtual content based on the user's visual acuity, using input mechanisms to identify and respond to changes in the user's gaze, ensuring content is optimally displayed according to their visual capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display content size and position are fixed in existing wearable devices, then the device structure is simple, but the user experience is suboptimal and does not adapt to individual visual acuity
Solution Approach 1:
The patent implements dynamic adjustment of virtual content distance and size based on user input. The processor continuously monitors user interactions (such as pinching gestures) and adjusts the virtual window's position and dimensions in real-time, transforming a static display system into a dynamic one that adapts to user needs.
Solution Approach 2:
The system incorporates feedback mechanisms where user inputs (gestures, movements) are detected and processed to adjust display parameters. The processor uses feedback from sensors detecting user actions to modify the virtual content presentation, creating a closed-loop control system that responds to user visual acuity requirements.
2Adaptability or versatility
If the virtual content is displayed at a fixed distance from the user, then the display system is simple, but it cannot accommodate changes in user visual acuity or viewing preferences
Solution Approach 1:
The system enables self-service adjustment where the user directly controls the virtual content distance and size through natural gestures. The user performs pinching movements in the air, and the system automatically translates these gestures into display parameter adjustments without requiring manual configuration or complex control interfaces.
Solution Approach 2:
The patent replaces traditional mechanical adjustment mechanisms with gesture-based control. Instead of physical knobs or buttons, the system uses sensor detection of user hand movements and gestures to control display parameters, substituting mechanical interfaces with optical/sensor-based detection and digital control.
3Measurement precision
If the content size in the virtual window does not change with distance, then the display rendering is simple, but the visual acuity adaptation is poor
Solution Approach 1:
The system dynamically changes multiple display parameters simultaneously - both the distance of the virtual window from the user and the size of content within it. The processor adjusts these parameters in coordination based on user input, ensuring that content size scales appropriately with distance to maintain optimal visual acuity matching.
Data Source
AI summary
A wearable device is disclosed. The wearable device receives an input for changing a distance between a user and a virtual window. While receiving the input, based on changing the distance between the user and the virtual window from a first distance, the wearable device identifies that a size of the at least one content included in the virtual window at a second distance of the virtual window from the user, which is changed from the first distance, corresponds to visual acuity information of the user from the gaze of the user, and based on identifying the second distance of the virtual window based on the visual acuity information, ceases changing the distance between the user and the virtual window according to the input being received.