Touch Panel Display Shadow Feedback for Scrolling Range Limits
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Solution Overview
Problem
Users experience operational stress and reduced usability due to unclear feedback when scrolling through graphical user interfaces, as existing methods fail to effectively notify users of the end of the scrolling range and provide a suitable response to their touch operations.
Innovation Solution
A display control apparatus and method that detects user operations and responds by scrolling displaying objects, displaying shadows or transparent objects, or creating ripple effects to simulate continued movement when the end of the scrolling range is reached, providing visual cues to indicate that the operation is received and the scrolling has stopped.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the displaying object stops scrolling immediately when reaching the end of the scrolling range, then the system responds efficiently to the operation limit, but the user cannot determine whether the end of scrolling range has come or the operation is not receivable, reducing usability
Solution Approach 1:
The patent implements a shadow object that follows the displaying object during scrolling and continues to move even after the displaying object stops at the scrolling range end. This provides visual feedback to the user that their operation is still being registered, resolving the ambiguity of whether scrolling has truly ended or the system is simply not responding.
Solution Approach 2:
The shadow object acts as an intermediary between the displaying object and the user. It mediates the communication by providing continuous visual response to user operations even when the actual displaying object cannot scroll further, thus maintaining user awareness of system responsiveness.
2Ease of operation
If visual feedback effects such as tilt or horizontal lines are added to indicate scrolling direction, then the user can recognize the scrolling state, but the displaying state changes rapidly when scrolling stops, creating an unsuitable response and reducing usability
Solution Approach 1:
The patent creates a shadow object that is a simplified copy of the displaying object. This shadow copy provides the visual feedback needed for user awareness without the complexity of multiple display state transitions. The shadow object's continuous movement provides smooth visual response without abrupt changes.
3Productivity
If the displaying object scrolls to the end of the scrolling range and stops, then the scrolling operation is completed, but the user feels operational stress due to lack of suitable response
Solution Approach 1:
The shadow object provides continuous visual feedback that responds to user operations even after the displaying object has reached the scrolling range end. This feedback mechanism reduces user operational stress by clearly indicating that the system is still receiving and processing their input, even if the primary displaying object cannot scroll further.
Data Source
AI summary
A display control apparatus that is capable of making a user feel a fact that a user's operation is received and of notifying the user that an end of a scrolling range has come. A display unit displays a displaying object. An operation detection unit detects a user's operation to the display unit. A display control unit scrolls the displaying object when the operation detection unit detects an instructing operation of scrolling, and displays a shadow of the displaying object and moves the shadow in a direction opposite to a direction of scrolling by the instructing operation when the instructing operation is not completed even if the displaying object has been scrolled to an end of a scrolling range.