Virtual Screen Control via Stylus and Touch Input Segmentation
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Solution Overview
Problem
Current portable computing devices with touch screen displays face limitations in distinguishing between stylus and touch inputs, leading to complicated user interfaces and restricted natural movement of screen views due to the use of scroll bars.
Innovation Solution
A method and apparatus that detect touch screen inputs on a screen view to differentiate between stylus and touch inputs, processing each type separately to enable precise manipulation and movement of virtual screen views, improving response speed and user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If stylus input and touch input are treated as identical pointing input, then the user interface becomes simpler, but the UI and UX scenario becomes complicated and the response speed decreases
Solution Approach 1:
The patent segments the touch input detection into two distinct types: stylus input and touch input. The controller separates the processing paths for each input type, allowing stylus input to trigger manipulation operations on the virtual screen while touch input triggers screen view movement. This segmentation resolves the contradiction by maintaining simple UI design while enabling fast, differentiated response to different input types.
2Ease of operation
If scroll bar is used for moving screen view, then the interface provides precise control, but the movement of screen view becomes restricted and not natural
Solution Approach 1:
The patent replaces the mechanical scroll bar system with a direct touch-based movement system. When touch input is detected, the controller directly moves the screen view according to the touch movement without requiring scroll bar interaction. This substitution eliminates the restrictive scroll bar mechanism while maintaining precise control through direct touch gestures, enabling more natural and versatile screen view movement.
3Area of stationary object
If touch screen size is increased, then the display area is improved, but the number of stylus input operations required increases
Solution Approach 1:
The patent introduces dynamic behavior to screen view movement in response to touch input. The screen view can be moved continuously and naturally across the enlarged virtual screen area through direct touch gestures, eliminating the need for multiple discrete stylus operations. This dynamic approach allows users to efficiently navigate large display areas by simply dragging or flicking the touch screen, reducing the time and number of operations required.
Data Source
AI summary
A method and an apparatus for controlling a virtual screen in a touch screen device are provided. The method includes detecting a touch screen input on a screen view, the screen view displaying a partial area of the virtual screen on a display unit of the electronic device, determining whether the touch screen input is a stylus input or a touch input, the stylus input being executed by a user controlling a stylus and the touch input being executed by the user using a body part of the user, processing the stylus input as a manipulation input corresponding to the virtual screen when the touch screen input is the stylus input, and moving the screen view on the virtual screen in response to a touch movement of the touch input when the touch screen input is the touch input.