Portable Terminal Dual Display Boundary Image Legibility
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Solution Overview
Problem
Portable information terminals with multiple display screens face illegibility issues when an original image is divided across the screen boundary, and existing solutions do not effectively improve visibility of text on these boundaries.
Innovation Solution
A portable information terminal with two display screens and touch panels allows users to designate and display only the portion of an image at the screen boundary on one screen, using a slide display operation to ensure the image is legible by identifying a stripe region at the boundary and sliding it to the appropriate display screen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If one original image is displayed on a plurality of display screens, then the display size is increased, but the image becomes illegible due to the boundary dividing it into two portions
Solution Approach 1:
The patent extracts the image portion that lies on the boundary between display screens and displays it separately on one of the screens. This is achieved by detecting the boundary position, identifying images that cross the boundary, and repositioning those image portions to avoid being split, thereby maintaining image integrity while preserving the multi-screen display configuration
Solution Approach 2:
The patent introduces a new dimension of image arrangement by allowing images to be positioned not only within individual screen boundaries but also across screen boundaries in a coordinated manner. The system manages image coordinates and positions in a multi-dimensional space that accounts for multiple displays, enabling seamless image presentation that spans screens while maintaining legibility
2Adaptability or versatility
If the technique in Patent Literature 2 is used to divide an original image into two portions at the boundary, then the display can accommodate multiple screens, but the image on the boundary becomes illegible
Solution Approach 1:
The patent applies different display strategies to different regions: images that do not cross the boundary are displayed normally on their respective screens, while images that do cross the boundary are specially handled by repositioning them to avoid splitting. This localized quality adjustment ensures that boundary-affected images maintain legibility while preserving the overall multi-screen display functionality
Solution Approach 2:
The system performs preliminary detection of image positions relative to screen boundaries before displaying the images. By pre-identifying which images will cross boundaries and repositioning them in advance, the system prevents illegibility from occurring in the first place, rather than attempting to correct it after the fact
3Illumination intensity
If the technique in Patent Literature 3 is used to enlarge the designated portion of an image, then the visibility of the enlarged portion is improved, but it does not directly improve illegible text on the boundary between display screens
Solution Approach 1:
The patent segments the display system into multiple independent display screens while maintaining coordinated image management. By treating each screen as a separate display unit with its own coordinate system, the system can independently control image positioning on each screen to ensure that boundary texts are not split, while still allowing for selective enlargement of image portions to enhance visibility
Data Source
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Figure 1C
AI summary
A display section (2000) that has a plurality of display screens comprises: a touch panel type input section (3000) that senses touches on said display screens; and a control section (1000) that causes any one of the two display screens to display a predetermined portion that lies on two display screens of said plurality of display screens based on a touch operation on the display screens.