Scroll Display Delay for Read Unread Distinction
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Solution Overview
Problem
Users of small electronic devices face difficulty in distinguishing between read and unread portions of documents when scrolling, as existing technologies do not effectively differentiate between the two, leading to complex user operations.
Innovation Solution
A scroll display program that includes a storage module, instruction acknowledging module, range identifying module, and delay control module to scroll the previously displayed block and subsequently displayed block with a delay, creating a blank area to distinguish between read and unread portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the scroll is allowed to occur one line at a time to avoid displaying both read and unread portions concurrently, then the user can distinguish between read and unread portions, but the user operation becomes complicated and requires repeated pressing of the scroll button
Solution Approach 1:
The display area is divided into two distinct blocks: a first block displaying previously viewed content and a second block displaying subsequently viewed content. This segmentation allows users to clearly distinguish between read and unread portions while enabling smoother scrolling operations without requiring line-by-line scrolling.
Solution Approach 2:
The patent introduces a temporal dimension to the display by showing two different time periods of content simultaneously (past content in the first block, future content in the second block). This resolves the contradiction by providing visual distinction without requiring sequential scrolling through each line.
2Productivity
If several lines of a document are scrolled at once to improve scrolling efficiency, then the user operation becomes simpler, but the portion already read and the portion displayed for the first time are displayed concurrently making it difficult to recognize the portion already read
Solution Approach 1:
The display area is divided into two distinct blocks: a first block displaying previously viewed content and a second block displaying subsequently viewed content. This segmentation allows users to clearly distinguish between read and unread portions while enabling smoother scrolling operations without requiring line-by-line scrolling.
Solution Approach 2:
A blank area is introduced as an intermediary element between the first block and the second block. This blank area visually separates the previously displayed content from the subsequently displayed content, making it easy for users to distinguish between read and unread portions even when multiple lines are scrolled at once.
3Loss of information
If a blank area is displayed between the previously displayed block and the subsequently displayed block, then the user can clearly distinguish between read and unread portions, but the device complexity increases due to the need for delay control
Solution Approach 1:
The system pre-loads and prepares the subsequently displayed block content in advance before it needs to be displayed. This preliminary preparation allows the blank area and delay effects to be implemented through simple display timing control rather than complex real-time processing, reducing overall system complexity.
Solution Approach 2:
The patent implements the blank area and delay effects by adjusting display timing parameters and scroll speed parameters rather than adding complex hardware components. The delay control is achieved through software-based parameter modification, keeping the device complexity low while still providing clear visual distinction between read and unread portions.
Data Source
AI summary
A storage unit is configured to store a document to be displayed in a predetermined display area on a display. An instruction acknowledging unit is configured to receive a scroll instruction signal for scrolling the document displayed in the display area. A range identifying unit is configured to identify a previously displayed block displayed in the display area before the scrolling operation and a subsequently displayed block displayed in the display area as updated by the scrolling operation. A delay control unit is configured to cause the previously displayed block to be scrolled in the display area by the predetermined amount of movement and displayed accordingly, and causing the subsequently displayed block to be scrolled and displayed accordingly with a delay from the previously displayed block.