Touchscreen Content Display with Hierarchical Grouping
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Solution Overview
Problem
Conventional technology for displaying large numbers of pages on a touchscreen results in small page widths, leading to inaccuracies in page selection due to limited screen size and slight changes in touch location, causing users to spend a long time flipping through pages to reach the desired content.
Innovation Solution
A content display device with a detection unit for operation location and amount, a display unit, and a display control unit that adjusts the displayed content order based on the operation location and pressure-sensitive input, allowing for quick selection and display of desired content by changing the order of displayed content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the number of pages is extremely large and each page is displayed on a limited-size touchscreen, then the width of each page becomes very small, but this leads to large fluctuations in page selection when the designated location changes slightly
Solution Approach 1:
The patent divides the large number of pages into multiple groups, where each group contains a manageable number of pages (e.g., 10 pages per group). When a user designates a location, the system identifies which group contains the desired page and displays only that group, rather than attempting to display all pages simultaneously. This segmentation resolves the contradiction by maintaining accurate page selection within each group while accommodating the large total number of pages through hierarchical organization.
2Quantity of substance
If the page width is made small to accommodate a large number of pages on the touchscreen, then more pages can be displayed, but the precision of page designation deteriorates
Solution Approach 1:
The patent introduces a hierarchical dimension to the page display structure. Instead of arranging all pages in a single linear sequence on the touchscreen, it creates a two-level hierarchy: groups of pages at the first level, and individual pages within each group at the second level. This dimensional change allows the system to display a manageable number of page groups simultaneously while maintaining precise page designation within each group, effectively resolving the precision loss caused by small page widths.
3Ease of operation
If pages are flipped one by one from a distant page to reach the desired page, then the user can eventually reach the target, but the time required becomes very long
Solution Approach 1:
The patent performs preliminary action by automatically identifying and displaying the group containing the desired page immediately after the user's initial designation, rather than requiring sequential flipping through all intermediate pages. The system calculates which group contains the target page based on the user's input and directly navigates to that group, displaying its contents for immediate selection. This eliminates the time-consuming sequential flipping process while maintaining ease of operation through simple user designation.
4Area of stationary object
If the touchscreen size is limited, then the device remains portable and compact, but the area available for displaying and selecting content is restricted
Solution Approach 1:
The patent implements dynamic content display by adjusting the number of pages displayed per group based on the touchscreen area and user interaction state. When the device is in normal operation mode, it displays a standard number of pages per group. When a group is selected, it dynamically expands to display all pages within that group, maximizing the use of available touchscreen area. This dynamic adaptation allows the system to maintain portability while providing versatile content selection capability that fully utilizes the limited screen real estate.
Data Source
AI summary
The invention aims to provide a user interface for efficiently displaying desired content from among a large number of contents.An operation location and an operation amount of an operation that has been made on an operation member is detected. Based on the operation location, one content is selected from among a plurality of contents that have been arranged in sequence, and a display unit displays the selected one content. The display unit displays another content when the operation location has moved during the display of the selected one content, an order of said another content being different from an order of the selected one content by a number based on the operation amount detected by a detection unit.