Dual-Touchscreen Incoming Call Control With Guided Screen Use

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

The operation of dual-screen electronic devices is complex, leading to reduced interaction and user experience due to the need for manual activation of screens and buttons for different functions.

Innovation Solution

An electronic device operation method that includes displaying prompts on one touchscreen to instruct users to perform actions on another touchscreen or use an earpiece, automatically activating screens based on user interactions, and disabling touch functions during device flipping to enhance user interaction and reduce power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the user manually activates screens and buttons for different functions on dual-screen electronic devices, then the device can perform required operations, but the operation complexity increases and user interaction is reduced

Engineering Contradiction:
Improveease of operationVSAvoidoperation complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The system automatically determines which screen should be active based on the detected function operation, eliminating the need for manual screen activation. When a user operates a button or control associated with a specific function, the system autonomously activates the appropriate screen to display related information, making the device serve itself rather than requiring user intervention for screen management.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system provides immediate feedback by displaying prompt information on the active screen that guides users on which screen to use for specific operations. When a user interacts with a control element, the system responds by showing relevant prompts that indicate the appropriate screen state, creating a feedback loop that simplifies user decision-making and reduces operational complexity.

Inventive Principle:
Principle #23Feedback

2Ease of operation

If the touchscreen remains active to respond to user operations, then user interaction is improved, but power consumption increases

Engineering Contradiction:
Improveuser interactionVSAvoidpower consumption
Core Design Contradiction:
Ease of operationVSUse of energy by moving object

Solution Approach 1:

The system employs periodic activation of the touchscreen rather than keeping it continuously active. The screen is activated only during specific periods when user operations are detected or when prompt information needs to be displayed, and remains inactive during other periods. This periodic on-off cycle maintains user interaction capability while significantly reducing overall power consumption compared to continuous activation.

Inventive Principle:
Principle #19Periodic action

Data Source

PatentEP4376431B1Electronic device operation method and electronic device
Publication Date: 2026.03.11 HUAWEI TECH CO LTD
  • EP4376431B1 patent drawingFigure 1
  • EP4376431B1 patent drawingFigure 2
  • EP4376431B1 patent drawingFigure 3(a)~3(b)

AI summary

An electronic device operation method and an electronic device are provided. The electronic device includes a first touchscreen and a second touchscreen, the first touchscreen and an earpiece are located on a first surface of the electronic device, the second touchscreen is located on a second surface of the electronic device, and the first surface is different from the second surface. The method includes: displaying, by the electronic device, a first screen on the second touchscreen in response to receiving an incoming call, where an incoming call number, a first control, and a second control are displayed on the first screen, and when the first control is triggered, the electronic device establishes a call with an electronic device corresponding to the incoming call number, or when the second control is triggered, the electronic device refuses to establish a call with an electronic device corresponding to the incoming call number; and displaying prompt information on the second touchscreen, where the prompt information is used to prompt a user to answer the incoming call by using the earpiece on the first screen. In this manner, the user can be instructed to operate the electronic device to some extent, helping improve user experience.