Projector Drawn Image Management via IP Association
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Solution Overview
Problem
Existing display apparatuses face increased burden in detecting changes in displayed images, leading to inefficient management of drawn images when the image source changes, which can obstruct visual recognition of new images.
Innovation Solution
A display apparatus that includes a communication section, a display section, a detector, a generator, and storage, which associates drawn images with identification information for the image supplying apparatus, allowing seamless switching and deletion of images when the source changes, thereby reducing the burden on the system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the display apparatus continuously analyzes the displayed image to detect changes, then the drawn objects are properly managed when images change, but the burden on the display apparatus increases
Solution Approach 1:
The system uses feedback from the image supplying apparatus to detect image changes. When the image supplying apparatus transmits a new image, the display apparatus receives it through the communication section and automatically detects the change without needing to continuously analyze the displayed image, thus reducing processing burden while maintaining reliable drawn image management
Solution Approach 2:
The communication section acts as an intermediary between the image supplying apparatus and the display controller. It receives image information from the external apparatus and triggers the display controller to detect image changes, distributing the detection burden to the communication section rather than requiring the display apparatus to continuously analyze images
2Ease of operation
If drawn images are displayed on the display surface, then user interaction is enabled, but visual recognition of new images is obstructed when the image source changes
Solution Approach 1:
The display system dynamically adjusts the displayed content based on the image source. When a new image is supplied, the display controller automatically deletes previously displayed drawn objects and displays new drawn objects corresponding to the new image, allowing the display to transition smoothly between different image sources while maintaining user interaction capability
Solution Approach 2:
When the image source changes, the display controller discards the old drawn images that are no longer relevant and recovers by displaying new drawn objects that correspond to the new image. This ensures that only relevant drawn objects are displayed at any given time, preventing visual obstruction while preserving user interaction with the current image
Data Source
AI summary
A projector includes a communication section that accepts image information supplied from an image supplying apparatus, an image projection section that displays an image based on the image information on a display surface, a detector that detects a pointing position on the display surface at which a light emitting pen is pointing, a drawn image generator that generates a drawn image based on the pointing position detected by the detector, a display controller that causes the image projection section to display the drawn image, and a storage that stores the drawn image in association with the IP address. In a case where the image supplying apparatus, which supplies the communication section with the image information, is changed, the display controller reads the drawn image corresponding to the IP address of the changed image supplying apparatus from the storage and causes the image projection section to display the read drawn image.