Child Window Layout Across Parallel App Windows

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Solution Overview

Problem

Existing electronic devices face challenges in adjusting the display region and size of child windows, which are limited within the parent window, leading to reduced flexibility and user experience during multi-task processing.

Innovation Solution

The method allows child windows to be displayed between and outside the parent window, with adjustable size and movement options, enhancing user interaction and flexibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the child window is limited to display only within the parent window region, then the parent-child window relationship is clearly defined and easy to manage, but the display flexibility and user experience are reduced

Engineering Contradiction:
Improvewindow management clarityVSAvoiddisplay flexibility
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent implements dynamic window display behavior where the child window's display region adapts based on the current window configuration. When the parent window is the only window displayed, the child window is limited to the parent's region for clarity. When multiple windows are displayed in parallel, the child window can extend to cover regions of other windows to improve visibility and user experience. This dynamic adjustment resolves the contradiction between management clarity and display flexibility.

Inventive Principle:
Principle #15Dynamics

2Stability of the object's composition

If the child window size is limited to the parent window size, then the window hierarchy is maintained, but the display diversity and user experience are enriched

Engineering Contradiction:
Improvewindow hierarchy stabilityVSAvoiddisplay diversity
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The patent changes the display parameters (size and position) of the child window based on the window configuration state. The child window size parameter is dynamically adjusted: it is constrained to the parent window size when the parent is alone, but can expand to cover multiple window regions when windows are displayed in parallel. This parameter change enables display diversity while maintaining hierarchical stability.

Inventive Principle:
Principle #35Parameter changes

3Loss of information

If the child window covers only the parent window region, then the parent-child relationship is visually clear, but the user experience when controlling the entire application window is reduced

Engineering Contradiction:
Improvewindow relationship clarityVSAvoiduser experience
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The patent implements dynamic positioning of the child window based on the operational context. When the child window is used to control the entire application window (not just the parent), the system dynamically positions the child window to cover regions of multiple parallel windows, making the control relationship visually clear and improving user experience. This dynamic behavior resolves the contradiction between relationship clarity and ease of operation.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP4697152A1Window display method and electronic device
Publication Date: 2026.02.18 HUAWEI TECH CO LTD
  • EP4697152A1 patent drawingFigure 1
  • EP4697152A1 patent drawingFigure 2A
  • EP4697152A1 patent drawingFigure 2B

AI summary

A window display method and an electronic device are disclosed, and relate to the field of electronic device technologies, so that a display region of a child window can be adjusted. A specific solution includes: An electronic device may display a first window in response to an operation of starting a target application, where the first window includes a second window and a third window that are displayed in parallel. Then, the electronic device may receive a first operation performed on the second window, where the first operation is used to trigger displaying of a child window of the second window; and display the child window of the second window in response to the first operation, where the child window of the second window covers a part of a region in which the second window is located and a part of a region in which the third window is located.