Gaze-Adaptive Alert Display for Missed Notification Prevention
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Solution Overview
Problem
Existing alert systems fail to effectively draw user attention when the user is not looking at the device, leading to missed notifications.
Innovation Solution
An alert display system that detects a user's line of sight and adjusts the alert's display form based on viewpoint and area coordinates, using processors to move, add effects, or change the alert's position to ensure visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the alert is displayed at a fixed position on the display device, then the display system is simple, but the user may not notice the alert when not looking at that position
Solution Approach 1:
The alert display position is changed dynamically based on detected line of sight. The display control unit adjusts the alert position from an initial position to a determined position where the alert is more likely to be noticed by the user, making the display system adaptive rather than static.
Solution Approach 2:
The system uses line of sight detection to provide feedback about user attention state. Based on this feedback, the display control unit determines whether and how to adjust the alert position, creating a closed-loop system that responds to user behavior.
2Reliability
If the alert display position is changed based on line of sight detection, then alert noticeability is improved, but the system complexity increases due to additional detection and control mechanisms
Solution Approach 1:
The display device serves multiple functions: it displays content normally and also functions as a line of sight detection system. By integrating these functions, the patent avoids adding separate dedicated detection hardware, thereby reducing overall system complexity while still achieving improved alert noticeability.
3Use of energy by moving object
If the alert is displayed only when the user is looking at the device, then power consumption is reduced, but alerts may be missed when the user is not looking
Solution Approach 1:
The system performs preliminary line of sight detection to determine where the user is looking before finalizing the alert display position. This preliminary action allows the system to prepare the optimal display location in advance, ensuring the alert will be noticed even if the user shifts their gaze.
Data Source
AI summary
An alert display system includes at least one processor. The at least one processor displays an alert on a display device of a user terminal, detects the line of sight of a user of the user terminal, acquires user viewpoint coordinates on the display device, and changes a display form of the alert on the basis of the viewpoint coordinates and area coordinates of the alert on the display device.