Touch Screen Document Edge Stretching Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
On small-screen mobile terminals, users face frustration when trying to navigate large electronic documents, as the device often appears unresponsive when attempting to move the document to another side, leading to a perception of the device being stuck or crashed.
Innovation Solution
A method and device for displaying electronic documents on touch screens, where edge regions with display elements are stretched away from the edge in response to user movement, indicating the document's edge and preventing unnecessary user actions, and then revert to original states when the user is no longer interacting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the mobile terminal displays only a part of the electronic document on a small screen, then the document can be displayed at all, but the user cannot see other parts and must repeatedly move the document, leading to the perception that the device is stuck or crashed
Solution Approach 1:
The patent applies dimensionality change by transforming the 2D document display into a 3D visual experience through perspective transformation. When the user drags the document to the edge, the system creates a visual effect where the document appears to extend beyond the screen boundary into a third dimension, showing a preview of the next visible area. This resolves the contradiction by maintaining the limited display area while providing visual access to additional content through the perspective effect, reducing the need for repeated scrolling operations.
2Loss of information
If the user moves the electronic document to another side for display, then other parts of the document become visible, but the device appears unresponsive when the document reaches the edge, causing user frustration
Solution Approach 1:
The patent implements feedback by providing visual cues through perspective transformation when the document approaches or reaches the screen edge. The system detects the document's position and applies a perspective effect that visually indicates the boundary and previews the next visible area. This feedback mechanism informs users that the document has reached its display limit without the device appearing unresponsive, maintaining perceived reliability while preventing information loss about document boundaries.
3Loss of information
If the document is stretched to show more content, then the user can see additional areas, but the display elements may become distorted
Solution Approach 1:
The patent applies local quality by selectively applying perspective transformation only to specific regions of the document near the edge, rather than uniformly distorting the entire document. The transformation is localized to the area where the user's finger is dragging, creating a focal point effect that expands that specific region while maintaining the integrity of other display elements. This resolves the contradiction by providing additional content visibility through localized stretching without causing widespread distortion of display elements.
Data Source
AI summary
The present disclosure relates to methods and devices for displaying a document on a touch screen display, which belongs to the field of human computer interaction. The method for displaying a document on a touch screen display includes: displaying an edge region of an electronic document on the touch screen display where the edge region contains an edge of the electronic document and one or more display elements, detecting a movement of an object acting on the touch screen display, and in response to the movement of the object, stretching, for display, the one or more display elements in a direction away from the edge. Thereby, it reminds the user that the display has reached the edge of the electronic document, prevents the user from repeating move operation which is practically inapplicable, and thus improves efficiency of user operation.