Force-Sensitive Touch Display Gesture Control
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Solution Overview
Problem
Existing portable electronic devices face challenges in efficiently selecting and managing content on their touch-sensitive displays, particularly in handling gestures and force inputs to expand or reduce selection areas, which can be cumbersome and inefficient.
Innovation Solution
The method involves using a touch-sensitive display with force sensors and capacitive touch sensors to detect gestures and force inputs, allowing indicators to move based on increment levels and directions, enabling users to quickly and easily select and expand or reduce text areas by interpreting touch inputs such as taps and flicks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional touch screen selection methods are used, then users can select content on the display, but the process becomes cumbersome and inefficient when needing to expand or reduce selection areas
Solution Approach 1:
The patent applies parameter changes by detecting force magnitude parameters to control selection expansion behavior. Different force magnitudes trigger different selection modes: light force expands selection to adjacent content (e.g., next word or line), while stronger force expands to larger units (e.g., entire paragraph or screen). This resolves the contradiction by enabling efficient content selection through intuitive force-based gestures, eliminating cumbersome traditional selection methods and allowing rapid expansion or reduction of selection areas based on applied force parameters
2Difficulty of detecting and measuring
If more touch sensors are added to detect force inputs, then gesture detection capability improves, but device complexity increases
Solution Approach 1:
The patent applies universality by making the existing touch-sensitive display serve multiple functions: it detects both conventional touch gestures and force magnitude inputs using the same sensor infrastructure. The display panel and underlying sensors are designed to capture both light touch and harder presses, enabling gesture detection and force measurement without adding separate sensor systems. This resolves the contradiction by improving gesture detection precision through multi-functional use of existing components, avoiding increased device complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances user interaction by allowing precise control over text selection on portable devices, enabling users to efficiently select and manage content, such as expanding to include entire lines or paragraphs with intuitive gestures, improving usability and interaction efficiency.
Implementation Method 1
a touch-sensitive display with force sensors and capacitive touch sensors to detect gestures and force inputs
Data Source
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AI summary
A method includes displaying information on a touch-sensitive display and displaying an indicator at a first location in the information, detecting, on the touch-sensitive display, a first touch input associated with the indicator, in response to detecting the first touch input, moving the indicator from the first location to a second location in the information, wherein the second location is based on an increment level of the indicator, detecting, on the touch-sensitive display, a second touch input associated with the indicator, increasing the increment level of the indicator, and moving the indicator from the second location to a third location, wherein the third location is based on the increased increment level.