Touch Panel Image Display Apparatus Drag Direction Thresholds
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Solution Overview
Problem
Image display apparatuses with touch panels face operability issues due to unintended image switching or moving operations, which decrease user interaction efficiency.
Innovation Solution
The apparatus determines operation modes between scroll and page switching based on drag direction and distance, using threshold angles and distances to differentiate between intended and unintended user actions, thereby preventing accidental operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If drag operations are used for both image switching and image moving, then the touch panel functionality is enhanced, but unintended operations occur decreasing operability
Solution Approach 1:
The patent applies local quality by defining different operational characteristics for different regions of the touch panel. Specifically, it distinguishes between drag operations performed within the display area versus drag operations performed in the margin area, assigning different functions to each region to resolve the ambiguity of unintended operations
Solution Approach 2:
The patent implements dynamics by making the operation mode flexible and context-dependent. The system dynamically determines whether a drag operation should trigger image switching or image moving based on real-time conditions such as the drag distance relative to a threshold value and the current display state, allowing the same touch interface to adapt its behavior to user intent
2Device complexity
If image switching and image moving use the same drag operation, then the interface is simplified, but user intent cannot be accurately determined
Solution Approach 1:
The patent applies parameter changes by utilizing the drag distance as a critical parameter to differentiate between image switching and image moving operations. By comparing the drag distance against a predetermined threshold, the system accurately determines user intent without requiring complex additional inputs or interface elements
Data Source
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AI summary
An image display apparatus includes a detection unit and a controller. The detection unit detects a specified position on a display screen on which an image is displayed. When the specified position on the display screen is moved, the controller performs a page switching operation or a move operation on the basis of a movement direction in which the specified position is moved. The page switching operation is an operation of switching an image being displayed on the display screen to another image. The move operation is an operation of moving a display position of the image being displayed on the display screen.