Touchscreen Scrolling Method Using Directional Segmentation
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Solution Overview
Problem
Users of portable electronic devices face inconvenience due to the need for repetitive touch input operations to scroll through content on limited display screens, especially when navigating through large amounts of information like E-book pages.
Innovation Solution
A method and device that set a scroll direction based on the initial touch movement, allowing the screen to scroll in that direction based on the distance of a subsequent touch movement, regardless of the direction of the second touch movement, thereby simplifying the scrolling process by eliminating the need for continuous directional input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a touch screen is used to scroll content based on drag operations, then the user interface responds to touch input, but users need to repetitively perform the same touch input for scrolling when there is a lot of content
Solution Approach 1:
The system determines the scroll direction in advance based on the first touch movement direction, before the second touch movement occurs. This preliminary determination of direction allows the subsequent scrolling to proceed efficiently without requiring the user to indicate direction again, thus reducing repetitive input operations
Solution Approach 2:
The touch input operation is divided into two distinct segments: the first touch movement that determines scroll direction, and the second touch movement that determines scroll distance. This segmentation allows each part of the input to serve a specific function, improving overall scrolling efficiency by eliminating the need for continuous directional input
2Device complexity
If the scroll direction is set based on the first touch movement direction, then the scrolling process is simplified, but the system must interpret multi-directional touch movements
Solution Approach 1:
The system performs preliminary determination of scroll direction based on the first touch movement before processing the second touch movement. This preliminary action simplifies the overall control mechanism by separating direction determination from distance determination, making the system easier to understand and implement
Solution Approach 2:
The system dynamically interprets the first touch movement to determine scroll direction, and then uses the second touch movement to determine scroll distance. This dynamic interpretation approach allows the system to adapt to different user input patterns while maintaining a relatively simple control structure
Data Source
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AI summary
A method and an electronic device for scrolling a display on a touchscreen are disclosed. The scrolling method for the electronic device includes setting a scroll direction based on a first touch input movement direction, and scrolling a display image in the scroll direction, based on a second touch input movement distance, irrespective of a second touch input movement direction.