Touch Panel Pressure and Area Detection for Seamless Zoom Control
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Solution Overview
Problem
Conventional touch screens limit user interaction due to difficulties in accurately performing multi-touch operations, such as zooming in and out, which can be inconvenient for tasks like reading books, as they require separate operations for these actions.
Innovation Solution
A method that temporarily manipulates object operations based on touch pressure and touch area, using a touch panel to detect capacitance changes and adjust operations accordingly, allowing for single or multiple touches to change the state of displayed objects, such as zooming in or out, by calculating the magnitude and size of the touch input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional touch screen operations are used for zooming in and out, then basic touch functionality is maintained, but user convenience deteriorates due to requiring separate operations for zooming in and out
Solution Approach 1:
The patent combines zooming in and zooming out operations into a single continuous touch interaction. By detecting touch pressure magnitude and touch area size, the system enables users to perform both zoom operations through one touch gesture rather than requiring separate operations, thus improving ease of operation and reducing time loss.
Solution Approach 2:
The patent implements dynamic operation states based on touch parameters. The system transitions between different operation states (first state, second state, third state) according to touch pressure and touch area changes, allowing seamless switching between zooming in and zooming out without requiring separate operational commands.
2Measurement precision
If touch pressure and touch area detection are implemented, then operation accuracy is improved, but device complexity increases
Solution Approach 1:
The patent makes the touch panel serve multiple functions by detecting both touch position and touch pressure magnitude, as well as touch area size, using the same hardware infrastructure. This multi-functional approach improves measurement precision without proportionally increasing device complexity.
Solution Approach 2:
The patent utilizes changes in touch parameters (pressure magnitude, touch area size) to control operation states. By monitoring these parameter changes, the system achieves accurate detection of user intent for zooming in or out without requiring additional complex hardware.
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
Enhances user interaction by allowing seamless zooming in and out on touch screens without the need for separate operations, improving convenience and accuracy in tasks like reading and navigating digital content.
Implementation Method 1
calculating at least one of the magnitude of the touch pressure and the size of the touch area according to a capacitance change amount caused by the touch
Data Source
AI summary
A method for temporarily manipulating an operation of an object in accordance with a touch pressure or a touch area may be provided. The method includes: operating the object at a first state; detecting at least one of a magnitude of the touch pressure and a size of the touch area when the touch is input to a touch panel; operating the object at a second state of a first operation according to at least one of the magnitude of the touch pressure and the size of the touch area; and operating the object at the first state when the touch is released.