Display Apparatus Edge Scroll Feedback Mechanism
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Solution Overview
Problem
Users face poor operability in touch panel interfaces due to unclear reasons for failure to scroll icons, as it is unclear whether the issue is caused by icons being at the edge of the screen or a failure in the sliding operation, leading to confusion and reduced usability.
Innovation Solution
A display apparatus with a touch panel and controller that calculates the moving amount of icons based on user input, allowing for scrolling and changing the display manner of icons when they reach the edge, including increasing transparency to indicate non-scrollability, thereby improving user interface operability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If icons are arranged in a row on the display screen, then the icons can be displayed in an organized manner, but the user cannot recognize whether the icons cannot be scrolled further or if the sliding operation failed
Solution Approach 1:
The system provides visual feedback by detecting the position of icons on the display screen and determining whether they are located at end portions. When icons cannot be scrolled further, the system outputs a notification to inform the user, thereby providing clear feedback about the system state and resolving the ambiguity between operational failure and boundary conditions.
Solution Approach 2:
The system introduces an intermediary detection mechanism that monitors the position of icons relative to the display screen boundaries. This intermediary component detects whether icons are at end portions and mediates between the scrolling operation and the user, providing clear information about whether scrolling is possible without requiring the user to infer from lack of movement.
2Ease of operation
If the touch panel detects sliding operations, then the user can interact with the interface, but it is unclear whether non-scrolling is due to boundary conditions or operation failure
Solution Approach 1:
The system detects the position of icons after scrolling operations and provides feedback information to determine whether icons are at end portions. This feedback mechanism allows the system to distinguish between successful scrolling to boundaries and failed scrolling operations, making the detection of scrolling status clear and unambiguous.
Solution Approach 2:
The system replaces mechanical detection methods with electronic detection by using the touch panel to detect the position of icons on the display screen. This electronic detection system can precisely determine whether icons are at end portions and provide clear information about scrolling status, overcoming the limitations of mechanical detection systems.
Data Source
AI summary
A display apparatus includes: a display device; a touch panel for sensing movement of an input object; a storage storing data representating images; and a controller. Images are displayed on the display device so as to be arranged in an arrangement order. The controller calculates a moving amount for moving the images, in response to movement of the input object. When the images are movable by the calculated moving amount in a moving direction commanded, the controller moves the images displayed on the display device, by the calculated moving amount in the moving direction. When the images are not movable in the moving direction by the calculated moving amount, the controller changes a display manner of the images and display the images in the changed display manner.