Remote Line Drawing via Coordinate Detection in Display Systems
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Solution Overview
Problem
Existing display systems require users to physically move to the display surface and operate a pointer to create line drawing images, which hampers user convenience and operability, especially for those not directly in front of the display.
Innovation Solution
A control method and system where an image supply device accepts operations and transmits coordinate information to a display device, allowing the generation and display of composite images by combining line drawing data at specific positions on the display surface, enabling remote creation and display of line drawing images without the need for direct user interaction with the projector.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a user operates a pointer directly on the display surface to create line drawing images, then the line drawing images can be displayed on the display surface, but the user must physically move to the display surface which reduces user convenience and operability
Solution Approach 1:
The patent introduces an intermediary system consisting of a coordinate detection unit and communication unit that mediates between the user's pointer operations and the display surface. The coordinate detection unit detects pointer positions and transmits this information to the display device, eliminating the need for the user to physically move to the display surface while still enabling accurate line drawing image creation at desired positions.
2Adaptability or versatility
If the display device generates composite images by combining line drawing images with display images, then the functionality and versatility of the display system is improved, but the device complexity increases
Solution Approach 1:
The patent segments the image processing functionality by separating the line drawing image generation from the display image rendering. The coordinate detection unit handles pointer operation detection and position transmission, while the display device handles composite image generation and display. This segmentation allows each component to focus on specific tasks, improving overall system versatility while managing complexity through functional decomposition.
Data Source
AI summary
A control method for a display system includes, displaying, by an image supply device, a display image accepting a first operation to the display image transmitting a display signal to a display device, the display signal including coordinate information representing a position in the display image of the first operation and the display image generating, by the display device, a composite image formed by combining a line drawing image at a position corresponding to the coordinate information, and displaying, by the display device, the composite image on a display surface of the display device.