Side-Touch Interface Switching on Foldable Displays

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Solution Overview

Problem

Conventional interface switching methods on electronic devices with curved or foldable screens are not intuitive and user-friendly, particularly when using a single hand, affecting user experience.

Innovation Solution

Implement a side touch area on foldable or curved displays, allowing users to switch interfaces through touch operations on the side area, adapting to user habits and enhancing convenience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a virtual key or entity key is disposed at the lower part of the screen for interface switching, then the interface switching function can be implemented, but the intelligence is low and user experience is affected

Engineering Contradiction:
Improveuser experienceVSAvoidinterface design intelligence
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent moves the touch area from the traditional lower part of the screen (2D plane) to the side edge of the display (introducing a third dimension/side dimension). This dimensional change allows the interface switching function to be triggered by touching the side edge, making it more intelligent and improving user experience by providing a more natural and ergonomic interaction method.

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

2Ease of operation

If the side touch area is used for interface switching on foldable displays, then user experience is improved and user habits are adapted, but the display structure becomes more complex

Engineering Contradiction:
Improveuser convenienceVSAvoiddisplay structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The side touch area on the foldable display serves multiple functions: it can be used for interface switching, as a flexible display area, and for various touch operations. By making this area multi-functional, the patent improves user convenience without requiring additional separate components, thus managing the complexity effectively.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The side touch area is designed to be flexible and adaptable to different folding states of the display. When the display is folded, the side touch area can be positioned on the folded edge; when unfolded, it can be positioned on the boundary area. This dynamic positioning adapts to user habits and improves convenience while utilizing the inherent flexibility of the foldable display structure.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If the third display area is used to include the side touch area when folded, then each area on the foldable display is properly used, but the touch area positioning becomes more complex

Engineering Contradiction:
Improvedisplay area utilizationVSAvoidtouch area positioning
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The display is divided into multiple display areas (first, second, and third display areas), with the side touch area specifically positioned in the third display area when folded. This segmentation allows each area to have a specific function: the first and second areas for main content display, and the third area for side touch operations. This structured segmentation improves display area utilization while managing positioning complexity through clear functional division.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4027231B1Interface switching method and electronic device
Publication Date: 2025.10.22 HUAWEI TECH CO LTD
  • EP4027231B1 patent drawingFigure 1
  • EP4027231B1 patent drawingFigure 2
  • EP4027231B1 patent drawingFigure 3~4

AI summary

This application provides an interface switching method and an electronic device. The method is applied to the electronic device, the electronic device has a display and a side touch area, and the method includes: when a first interface is displayed on the display, detecting a touch operation performed in the side touch area, and switching the first interface to a second interface for displaying on the display in response to the touch operation. In the solutions provided in the embodiments of this application, user interfaces can be switched by using the operation detected in the side touch area of the electronic device. This is relatively intelligent and facilitates a user operation, so that user experience can be improved.