Dual-Screen Portable Terminal Enlargement Frame Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional portable terminal devices with compact displays face challenges in providing clear visibility and easy operation for users with reduced vision or elderly users, as existing enlargement methods reduce the amount of visible information and make it cumbersome to identify the corresponding original information.
Innovation Solution
A portable terminal device with two side-by-side display screens, an enlargement frame displayed on one screen, and area selection keys, allowing users to select an area for enlargement and display the enlarged information on the adjacent screen, improving visibility and operability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the display screen is divided to show enlarged information, then visibility of enlarged information is improved, but the amount of information that can be displayed is reduced
Solution Approach 1:
The patent transitions from a single two-dimensional display to a three-dimensional arrangement with two display units positioned side by side. This spatial dimensionality change allows the system to display both the original information on the first display unit and the enlarged information on the second display unit simultaneously, resolving the contradiction between visibility and information quantity.
2Illumination intensity
If the display screen is divided for enlarged display, then enlarged information is visible, but it becomes difficult to identify correspondence with original information
Solution Approach 1:
The system provides visual feedback by displaying the enlargement frame on the first display unit that corresponds to the enlarged area shown on the second display unit. This feedback mechanism allows users to easily identify which part of the original information is being enlarged, resolving the difficulty of detecting correspondence.
3Device complexity
If a single display screen is used for enlargement, then device complexity is reduced, but operability becomes cumbersome
Solution Approach 1:
The patent divides the display function into two separate display units, each with a specific role: the first display unit shows the original information and enlargement frame, while the second display unit shows the enlarged information. This segmentation improves operability by providing dedicated areas for different functions, making the enlargement operation more intuitive and easier to use.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The disclosed portable terminal device is provided with: a first display unit (20A) having a first display screen (21A); a second display unit (20B) having a second display screen (21B) juxtaposed to the first display screen (21 A); an enlargement frame display control unit that controls the first display screen (21A) in a manner so as to display a frame to be enlarged on one of a plurality of areas within the first display screen (2 1 A); an enlarged information display control unit that controls the second display screen (21B) in a manner so as to display in an enlarged manner on the second display screen (21B) information from the first display screen (21A) displayed within the enlargement frame; and a plurality of area selection keys disposed corresponding to the plurality of areas of the first display screen (21A).