Touch Cursor Segmentation for Precise Dragging on High-Resolution Screens
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Solution Overview
Problem
High-resolution touch screens and small icons in electronic devices make precise touch control difficult, leading to inefficient operations and low user experience due to the limitations in design and finger thickness.
Innovation Solution
A touch control method that displays a touch cursor with a positioning point, detects the presence of a dragging object around it, and moves the object to align with the cursor upon receiving a dragging action signal, allowing for easier selection and dragging of objects, particularly boundary-type and bar-type objects, by establishing a search area and displaying a dragging icon.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a display interface with higher resolution is provided or smaller icons are included, then the information density and display capability are improved, but the ease of touch control deteriorates because finger touch is not precise enough
Solution Approach 1:
The patent introduces a touch cursor as an intermediary between the user's finger touch and the small icons on the high-resolution display. The touch cursor acts as a mediator that amplifies the precision of finger movements, allowing users to accurately select and drag small objects without directly touching them with their fingers. This resolves the contradiction by providing a intermediate tool that bridges the gap between limited finger precision and high display resolution.
Solution Approach 2:
The touch cursor is divided into distinct functional components: a positioning point for precise location indication and a controllable area for user interaction. This segmentation allows the cursor to serve multiple functions - indicating position with high precision while maintaining a larger, easier-to-hit target area for user input, thereby resolving the contradiction between display precision and operational ease.
2Ease of operation
If the touch cursor size is increased to improve ease of operation, then the ease of selecting objects is improved, but the positioning precision deteriorates
Solution Approach 1:
The touch cursor is segmented into a positioning point (for precision) and a controllable area (for ease of operation). The positioning point provides accurate location indication, while the controllable area offers a larger target for user interaction. This segmentation allows the cursor to simultaneously achieve both precision and ease of operation without compromise.
Solution Approach 2:
Different parts of the touch cursor have different functional qualities: the positioning point is designed for precision indication with minimal visual interference, while the controllable area is designed for ease of selection with larger dimensions. This local differentiation of qualities allows each part to optimize its specific function, resolving the contradiction between overall cursor size and positioning precision.
Data Source
AI summary
A touch control method, adapted for an electronic device with a touch screen is provided. The method includes the step of displaying a touch cursor on the touch screen, wherein the touch cursor includes a positioning point; detecting whether a dragging object exists around the positioning point; and moving the dragging object to be associated with the positioning point of the touch cursor and moving the dragging object according to a movement of the positioning point when determined that the dragging object exists around the positioning point and an operating signal corresponding to a dragging action of the touch cursor is received from the touch screen.