Touch-Sensitive Display Panning and Zooming via Force Detection
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Solution Overview
Problem
Handheld electronic communication devices with touch-sensitive displays face limitations due to their small size, requiring users to zoom or pan images to fully appreciate content, which can be cumbersome and reduce selection accuracy.
Innovation Solution
The implementation of a touch-sensitive display system that includes a microprocessor, touch location sensor, and force sensor, allowing for precise panning and zooming of images via a selection tool, with visual feedback and customizable force detection for enhanced user interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the device size is reduced for portability, then the device becomes more portable and easier to carry, but the display area decreases making it difficult to view images without zooming or panning
Solution Approach 1:
The patent implements dynamic display operations including zooming and panning functions that allow the display content to adapt dynamically. The system detects user inputs (touch, stylus, keyboard) and dynamically adjusts the displayed image scale and position, enabling full appreciation of images despite the limited static display area of portable devices.
2Measurement precision
If zoom or pan operations are implemented to view image details, then image visibility improves, but the number of operations required increases making the interface more cumbersome
Solution Approach 1:
The patent implements visual feedback mechanisms during zoom and pan operations. The system displays visual indicators showing the current zoom level, pan position, and selection status. This feedback allows users to understand the current state without requiring multiple operations, reducing the cognitive load and making the interface more intuitive despite the complexity of zoom/pan functionality.
Solution Approach 2:
The system performs preliminary actions by automatically adjusting the display based on detected user intent. For example, when a user hovers over or approaches an image region, the system can pre-adjust the zoom or pan to anticipate the user's viewing needs, reducing the number of explicit operations required.
3Adaptability or versatility
If multiple input methods are supported for zooming and panning, then user accessibility improves, but the system complexity increases
Solution Approach 1:
The patent implements a universal input handling system that processes multiple input types (touch, stylus, keyboard) through a unified framework. The system detects the input type and automatically adjusts the zoom/pan operations accordingly, allowing one system to serve multiple input methods without requiring separate processing paths for each input type.
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 solution enhances image selection accuracy and user experience by enabling intuitive panning and zooming on touch-sensitive displays, improving navigation and content appreciation on portable devices.
Implementation Method 1
a touch location sensor
Implementation Method 2
a force sensor
Data Source
AI summary
A method and method for displaying an image via a graphical user interface on a touch-sensitive display of an electronic device includes detecting a predetermined relation between a selection tool and the image. The image is panned in response to movement of the selection tool along the touch-sensitive display. The image is zoomed on in response to depression of the touch-sensitive display. An optional cursor may be activated upon detection of a first tap of the selection tool on the touch-sensitive display.