Multi-Touch Screen Virtual Display Management

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Solution Overview

Problem

Mobile devices with single touch screens face limitations in screen size and input device usage, making it difficult to divide screens and utilize applications effectively compared to desktop computers.

Innovation Solution

An apparatus and method utilizing multiple touch screens that change screens through continuous multiple touches, providing visual, auditory, or tactile feedback, allowing for screen changes via touch gestures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a mobile device uses a single touch screen, then the device structure remains simple, but the screen size is limited and screen division capability is poor

Engineering Contradiction:
Improvescreen division capabilityVSAvoiddevice structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent divides the single touch screen into multiple virtual display regions that can be independently controlled and manipulated. Users can create multiple virtual screens on one physical display, enabling screen division and multi-tasking without adding multiple physical screens, thus improving versatility while maintaining simple device structure.

Inventive Principle:
Principle #1Segmentation

2Area of stationary object

If a mobile device uses a single touch screen, then the device remains compact, but the effective working area is limited

Engineering Contradiction:
Improveeffective working areaVSAvoiddevice structure
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent extends the effective working area by utilizing the temporal dimension through virtual screen switching and overlay. Multiple virtual displays can be stacked or arranged in sequences, allowing users to access more content and applications without physically expanding the screen area, thus increasing effective working area while keeping the device compact.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Ease of operation

If multiple touch screens are added to a mobile device, then screen division and application usage improve, but the device complexity increases

Engineering Contradiction:
Improveapplication usageVSAvoiddevice structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent creates virtual copies of display functionality within the single touch screen. Instead of adding multiple physical screens, the system generates multiple virtual display instances that can be independently configured and manipulated, providing enhanced application usage and screen division capabilities while avoiding the complexity of multiple physical display hardware.

Inventive Principle:
Principle #26Copying

4Adaptability or versatility

If virtual screens are created on a single touch screen, then screen division capability improves, but the detection and control of multiple touches becomes more difficult

Engineering Contradiction:
Improvescreen division capabilityVSAvoidtouch detection
Core Design Contradiction:
Adaptability or versatilityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent introduces a virtual display management system that acts as an intermediary layer between the physical touch screen and the user interface. This intermediary software layer manages touch input routing, virtual screen creation, and coordinate mapping, simplifying the detection and control of multiple touches by abstracting the complexity from the hardware level to the software level.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP2673692B1Apparatus including multiple touch screens and method of changing screens therein
Publication Date: 2022.12.14 SAMSUNG ELECTRONICS CO LTD
  • EP2673692B1 patent drawingFigure 1~2B
  • EP2673692B1 patent drawingFigure 2C~3
  • EP2673692B1 patent drawingFigure 4

AI summary

An apparatus and method of changing screens using multiple touch screens. The method includes displaying a first screen in a first touch screen; displaying a second screen in a second touch screen; detecting multiple touches in the first touch screen; detecting continuous movements of the multiple touches from the first touch screen to the second touch screen; and changing the second screen of the second touch screen in response to the continuous movements of the multiple touches..