Display Apparatus Automatic Line Erasure During Mode Switch
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Solution Overview
Problem
Existing display apparatuses require users to manually erase unintended lines when switching operation modes, which can be burdensome and prone to errors, as they often draw lines against their intention due to accidental interactions with UI objects.
Innovation Solution
A display apparatus with a detecting section to track the pointer's position, a drawing section to draw lines in one mode, a transmitting section to send position information in another mode, and an erasing section that automatically removes lines when the pointer is within a predetermined range of a UI object upon mode switch instruction from the user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the display apparatus draws a line according to the pointer track in the first mode, then the user can perform drawing operations, but the user may accidentally draw lines against their intention when switching to the second mode
Solution Approach 1:
The system automatically detects and erases lines drawn against user intention without requiring manual intervention. The erasing section monitors pointer position and line drawing status, and automatically removes erroneous lines when detected, making the system self-correcting and reducing user burden.
Solution Approach 2:
The system provides feedback by detecting pointer position and determining whether lines are drawn against user intention based on pointer movement patterns and mode switching behavior. This feedback mechanism enables automatic differentiation between intentional and unintentional drawing actions.
2Reliability
If the user manually erases unintended lines after mode switching, then the line can be removed, but the user burden increases and operation becomes more complex
Solution Approach 1:
The erasing function operates automatically without user initiation. The erasing section continuously monitors system state and autonomously performs line erasure when conditions indicate unintentional drawing, eliminating the need for user intervention and simplifying operation.
Solution Approach 2:
The system performs erasure action in advance or immediately upon detecting unintentional drawing, preventing the need for subsequent manual correction. By proactively identifying and removing erroneous lines, the system eliminates the need for users to perform separate erasing operations.
3Adaptability or versatility
If the display apparatus switches operation modes based on user input, then the functionality changes, but unintended lines may remain if not automatically erased
Solution Approach 1:
The system uses feedback from pointer position detection and mode switching events to determine whether lines should be erased. By analyzing the relationship between pointer trajectory and mode transition timing, the system intelligently identifies lines drawn against user intention and removes them automatically.
Solution Approach 2:
The system autonomously manages line erasure during mode switching without requiring user commands. The erasing section integrates with the mode switching logic to automatically clean up unintended drawings, making the transition between modes cleaner and more reliable.
Data Source
AI summary
A display apparatus includes a display section configured to display, on a display surface, a screen of an application program running on an information processing apparatus, a detecting section configured to detect the position of a pointer, a drawing section configured to draw, when an operation mode of the display apparatus is a first mode, a line corresponding to a track of the position, a transmitting section configured to transmit, when the operation mode is a second mode, information indicating the position to the information processing apparatus, and an erasing section configured to erase the line when a first position of the pointer when the operation mode is the first mode is within a predetermined range including a first image object for performing an input to the application program on the screen and an instruction from a user for switching the operation mode to the second mode is received.