Screen Mirroring Control Adaptation for Display Mismatch

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Solution Overview

Problem

Existing screen mirroring technologies face challenges in displaying content effectively across devices with different screen resolutions and sizes, often resulting in poor display effects or inability to display content properly.

Innovation Solution

The method involves a source device determining specific target controls in its display interface based on configuration files corresponding to the destination device, and then sending drawing instructions and view information to the destination device to adapt the display interface to the destination device's characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the source device projects the entire display interface directly to the destination device, then the screen mirroring function is simple to implement, but the display effect deteriorates due to resolution and size mismatches between different devices

Engineering Contradiction:
Improveimplementation simplicityVSAvoiddisplay quality
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The display interface is segmented into multiple control elements (buttons, icons, text fields, etc.). Instead of projecting the entire interface uniformly, the system identifies and projects only specific target controls that are relevant to the destination device's display characteristics, thereby improving display quality while maintaining implementation simplicity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions or elements of the display interface are treated differently based on their importance and suitability for the destination device. The system applies local quality by selectively projecting certain controls with higher priority while omitting or adapting others, ensuring optimal display effect for each specific control element rather than uniform treatment.

Inventive Principle:
Principle #3Local quality

2Manufacturing precision

If the source device transforms and recombines controls to adapt to the destination device's screen characteristics, then the display effect is improved, but the device complexity increases due to additional processing requirements

Engineering Contradiction:
Improvedisplay qualityVSAvoidprocessing complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The system performs preliminary actions by pre-defining control element types and their projection priorities in the configuration file. During screen mirroring, the source device simply retrieves and projects the predetermined target controls based on the destination device type, avoiding complex real-time transformation and recombination logic, thus improving display quality while limiting complexity increase.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If configuration files are used to define target controls for different device types, then the adaptability to different destination devices is improved, but the loss of information increases due to selective projection of only certain controls

Engineering Contradiction:
Improvedevice compatibilityVSAvoidinterface information
Core Design Contradiction:
Adaptability or versatilityVSLoss of information

Solution Approach 1:

The system extracts only the essential and relevant control elements from the complete display interface based on the destination device type. By taking out only the necessary target controls (such as playback buttons, volume controls, or navigation elements) and projecting them to the destination device, the system achieves high adaptability while minimizing information loss by focusing on the most important interface elements.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentEP3958548B1Screen projection display method and electronic device
Publication Date: 2025.02.19 HUAWEI TECH CO LTD
  • EP3958548B1 patent drawingFigure 1
  • EP3958548B1 patent drawingFigure 2
  • EP3958548B1 patent drawingFigure 3

AI summary

Embodiments of this application provide a screen mirroring display method and an electronic device, and relate to the field of terminal technologies. A destination device can arrange, based on a device characteristic of the destination device, display content sent by a source device, so that a display effect and user experience of screen mirroring display between a plurality of devices are improved. The method includes: displaying, by a first electronic device, a first display interface; receiving, by the first electronic device, a screen mirroring instruction for projecting the first display interface onto a second electronic device by a user; determining, by the first electronic device, one or more first target controls in the first display interface in response to the screen mirroring instruction; and sending, by the first electronic device, a first message to the second electronic device, where the first message includes a drawing instruction of the first target control, so that the second electronic device draws a first screen mirroring interface according to the drawing instruction of the first target control, and the first screen mirroring interface includes the first target control.