Overlapping Projection Notification via Spatial Separation
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Solution Overview
Problem
In systems where multiple projection type display devices project images that overlap, existing notification methods fail to reliably convey events such as air filter clogging or malfunction to users due to overlapping images mixing warning messages with other content, and may not deliver notifications to users present in the vicinity.
Innovation Solution
A projection type display device system that includes a first display unit, a specification unit, a control unit, and an output unit, which displays configuration images corresponding to events in a predetermined region and outputs control signals to ensure the second configuration image overlaps with the first, allowing clear notification of events across multiple devices without mixing with other images, and reduces communication load by specifying events based on data from other devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a projection type display device displays an OSD image to notify a user of an event, then the user is notified of the event, but the warning message in the OSD image mixes with other projected images, making it difficult to deliver the content clearly
Solution Approach 1:
The patent projects configuration images from multiple projection type display devices onto the same screen, utilizing spatial overlapping to create a dedicated notification region. This transforms the notification problem from a two-dimensional overlay issue to a multi-dimensional spatial arrangement, where the configuration images form a distinct visual layer that separates warning messages from other content, ensuring clear information delivery while maintaining reliable notification.
2Reliability
If e-mail notification is sent to a system administrator, then the administrator is notified of the malfunction, but the notification is not delivered to the user if the administrator is not present
Solution Approach 1:
The patent introduces a local visual notification mechanism that acts as an intermediary between the system's event detection capability and the user. Instead of relying solely on electronic mail transmission to a remote administrator, the system projects configuration images directly onto the screen in front of the user, providing immediate local feedback. This intermediary visual notification ensures that users receive real-time alerts about malfunctions and events without requiring administrator presence or electronic communication infrastructure.
Data Source
AI summary
A display system displays images projected by a plurality of projection type display devices so as to overlap each other. When a user uses this system, events occurring in these devices can be reliably delivered to the user. A commander and a slave project and display images so as to overlap each other. When a notification-required event occurs in the commander or the slave, the commander specifies this notification-required event. Then, the commander displays a first OSD image between the first OSD image and a second OSD image, which form an image corresponding to the specified notification-required event, in a predetermined region of a first screen of screens on which images are displayed. Also, the commander outputs to the slave a control signal to display the second OSD image in the predetermined region. The slave displays the second OSD image in the predetermined region when the control signal is received.