Dual Selection Area Display Control for Date Range Data
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Solution Overview
Problem
Existing user interfaces for data selection, such as those used in video cameras, are inconvenient for selecting date ranges and multiple data items, as they require users to navigate through lengthy lists and lack clear visualization of item positions and quantities, leading to time-consuming and cumbersome operations.
Innovation Solution
A display control device and method that utilizes two selection areas on a screen, each with a scroll bar, where the display mode of the scroll bars changes based on the number and position of selected items, allowing users to easily select date ranges and multiple data items by filtering and adjusting the lists dynamically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single selection area displays a list of data items, then the interface is simple, but it is inconvenient for selecting date ranges and multiple data items
Solution Approach 1:
The interface is divided into multiple selection areas (first selection area for start date, second selection area for end date) instead of using a single selection area. Each selection area independently displays relevant data items, allowing users to select date ranges and multiple data items simultaneously, thereby improving data selection convenience without significantly complicating the overall interface structure.
2Ease of operation
If multiple selection areas are provided to select start date and end date, then date range selection is enabled, but each selection area displays a large number of items making selection complicated
Solution Approach 1:
The display control device dynamically adjusts the displayed items in each selection area based on the selection state. When a data item is selected in the first selection area, the second selection area automatically updates to display only the relevant subset of items (e.g., end dates after the selected start date). This dynamic filtering reduces the number of visible items in each area, simplifying the selection operation while enabling comprehensive date range selection.
3Loss of information
If all data items are displayed in each selection area, then complete information is available, but users cannot grasp item number and location at a glance
Solution Approach 1:
The scroll bar display mode is dynamically changed based on the selection state and the number of displayed items. When the number of items in a selection area exceeds a certain threshold, the scroll bar is displayed to allow users to navigate through all items while maintaining a compact view. This enables users to grasp the item number and location at a glance from the scroll bar indicators, while still having access to complete information when needed.
4Loss of information
If a large number of items are displayed in each selection area, then all data is visible, but the selection operation takes time and trouble
Solution Approach 1:
The system dynamically filters and updates the displayed items in the second selection area based on the selection in the first selection area. This dynamic filtering reduces the number of items users need to search through, significantly decreasing selection time. Users can quickly locate desired items without scrolling through unnecessarily large lists, while the system maintains the ability to display all relevant data when needed.
Data Source
AI summary
A display control device includes a display control unit and an input unit. The display control unit is configured to display, on a display screen, a first selection area displaying a list of a plurality of first data items, a first scroll bar corresponding to the first selection area, a second selection area displaying a list of a plurality of second data items, and a second scroll bar corresponding to the second selection area. The input unit is configured to receive a selection operation for selecting at least one item from the first data items displayed in the list in the first selection area. In conjunction with the selection operation of the first data item, the display control unit changes the second data items displayed in the list in the second selection area and the display mode of the second scroll bar.