Scroll Control Logic for Touch Panel Secondary Areas
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Solution Overview
Problem
Users often unintentionally scroll into secondary areas while attempting to scroll through primary images on information processing devices, due to accidental drag operations, especially when using touch panels with limited hand operation freedom.
Innovation Solution
An information processing device with a receiving unit to specify points on the screen, a determination unit to assess whether the primary or secondary area should be scrolled based on the last scroll direction, and a control unit to execute the appropriate scrolling action, ensuring the user's intended area is scrolled by defining a scroll instruction invalidated range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a user performs drag operation on a touch panel to scroll, then the scrollable area can be operated, but the user may accidentally scroll into a sub-area that has just come into view, causing unintended scrolling behavior
Solution Approach 1:
The patent applies preliminary anti-action by establishing a scroll instruction invalidated range in advance where scroll operations are prevented. When a sub-area comes into view during scrolling, the system proactively defines a range around the sub-area where drag operations will be ignored, preventing the user from accidentally initiating unintended scroll operations on the newly visible sub-area while maintaining smooth scroll operation in safe zones
2Adaptability or versatility
If the system allows scrolling in all areas including sub-areas, then all areas are accessible, but accidental drag operations on sub-areas cause unintended scrolling that frustrates the user
Solution Approach 1:
The patent applies local quality by creating spatial differentiation in the display area through the scroll instruction invalidated range. Different regions of the screen have different properties: areas outside the invalidated range accept and respond to scroll operations, while areas within the invalidated range (surrounding the sub-area) prevent scroll operations. This localized restriction allows the sub-area to remain accessible for intentional operations while protecting against accidental operations
Data Source
AI summary
In order to provide a technology with which an area that meets the intention of a user is scrolled when the user gives a scroll instruction while specifying a part of an image, provided is an information processing device which performs control for scrolling an image that is displayed on a display unit and that includes a scrollable first area and a second area which is a part of the first area and which is scrollable independently, the information processing device including: a unit configured to receive information that specifies a point on the display unit and that instructs to scroll an image corresponding to the specified point; a unit configured to determine, when the specified point corresponds to the second area, whether the first area is to be scrolled or the second area is to be scrolled independently.