Dynamic Enlargement Ratio Control for Touch Panel Image Display
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Solution Overview
Problem
Existing display control systems for mobile terminals with touch panels lack the ability to easily select and enlarge specific portions of images at desired enlargement ratios, leading to reduced usability.
Innovation Solution
A display control apparatus and method that detects indication manipulations on a manipulation surface to identify the area of interest and enlarge images accordingly, allowing users to select and display desired portions of images at desired enlargement ratios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a predetermined single enlargement ratio is used for all indication items, then the display control system is simple to operate, but the user cannot enlarge images at desired ratios or specific portions
Solution Approach 1:
The system transitions from a static single enlargement ratio to a dynamic multi-ratio system where the enlargement ratio changes based on the manipulation distance. As the manipulation indication means moves closer to the touch sensor, different enlargement ratios are applied, allowing the system to adapt to user needs while maintaining intuitive operation.
Solution Approach 2:
The enlargement ratio parameter is changed based on the distance between the manipulation indication means and the touch sensor. By establishing a correspondence between manipulation distance and enlargement ratio, the system enables versatile image enlargement while keeping the operation method simple and consistent.
2Adaptability or versatility
If the system enlarges indication items based on touch distance, then image portions can be enlarged, but the user cannot select specific areas or control enlargement ratios freely
Solution Approach 1:
The system automatically determines the enlargement ratio and target area based on the user's manipulation distance without requiring additional selection operations. The user simply moves their finger or stylus to the desired location and distance, and the system self-adjusts the enlargement parameters accordingly.
Solution Approach 2:
The system uses dynamic manipulation distance to control both the target area selection and enlargement ratio. By making the selection process dynamic rather than static, the system reduces operational complexity while maintaining high adaptability for different enlargement needs.
3Ease of operation
If a fixed enlargement ratio is applied, then the display control is simple, but the user experience is poor when different enlargement ratios are needed
Solution Approach 1:
The system changes the enlargement ratio parameter based on the manipulation distance, providing multiple enlargement ratios through a single consistent interaction method. This maintains ease of operation while improving user satisfaction by accommodating different enlargement needs.
Solution Approach 2:
The touch-based manipulation method serves multiple functions: it selects the target area, determines the enlargement ratio, and initiates the enlargement operation. This universal interaction method improves user satisfaction without complicating the operation.
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 usability by enabling easy selection and enlargement of image portions, improving user interaction with mobile terminals by allowing intuitive control over image display.
Implementation Method 1
The electronic device detects the presence or absence of touch or proximity of manipulation indication means (a finger or a stylus or the like) to the touch sensor according to change in electrostatic capacitance of the touch sensor.
Implementation Method 2
the electronic device detects distance between the touch sensor and the manipulation indication means on the basis of the change in the electrostatic capacitance of the touch sensor
Data Source
AI summary
A display control apparatus includes: a display section; a detecting section which detects an indication manipulation for a manipulation surface; and a control section which detects, if the indication manipulation for the manipulation surface is detected by the detecting section, an area in the manipulation surface indicated through the indication manipulation, and enlarges an image on the basis of the detected area to be displayed on the display section.