Head-Mounted Display Eye-Gaze Projection Shift for Obstructed Interaction
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Solution Overview
Problem
Existing head-mounted display technologies face challenges in user interaction due to obstacles blocking hand movements, leading to poor user experience during interactive operations.
Innovation Solution
A head-mounted display system that adjusts the position of projection objects based on eye-tracking, allowing for dynamic tilting or jumping of objects on the display screen in response to user gaze movements, using a processor to analyze eye gaze positions at multiple time points and adjust the projection object accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If hand tracking operation is used for interactive operations, then the user can operate the projection object on the display screen, but the user cannot move hand correctly to the operating position due to obstacles in the surrounding environment
Solution Approach 1:
The patent replaces the mechanical hand movement system with an eye-tracking system. The processor determines eye gaze position based on eyeball trajectory and automatically adjusts the projection object position accordingly, eliminating the need for physical hand movement to objects blocked by obstacles.
Solution Approach 2:
The patent introduces eye gaze position as an intermediary between the user and the projection object. Instead of direct hand-object interaction, the system uses eye tracking information to mediate the interaction, allowing users to select objects without physical hand movement.
2Device complexity
If the projection object position is fixed on the display screen, then the display structure is simple, but the user experience deteriorates when obstacles block hand movement to operating position
Solution Approach 1:
The patent makes the projection object position dynamic rather than fixed. The processor automatically adjusts the projection object position based on eye gaze position changes, allowing the object to move horizontally across the display screen without requiring complex mechanical structures.
Solution Approach 2:
The patent changes the horizontal position parameter of the projection object based on eye gaze position. The processor determines the horizontal display area where the eye gaze position is located and adjusts the projection object position accordingly, improving user interaction without adding physical complexity.
Data Source
AI summary
A head-mounted display and projecting method are provided. The display determines an eye gaze position of a user on a display screen at each of a plurality of time points based on an eyeball trajectory. The display determines whether the eye gaze position of the user on the display screen moves from a first horizontal display area to a second horizontal display area among a plurality of horizontal display areas, and the display screen includes a target projection object in the first horizontal display area. In response to the eye gaze position of the user on the display screen moving from the first horizontal display area to the second horizontal display area, the display tilts the target projection object of the display screen toward the second horizontal display area.