Display Device With Guided Partial-Screen Magnification

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Solution Overview

Problem

Existing display devices, such as smart TVs, lack the ability to enlarge a specific user-desired portion of an image and provide quick and easy access to the enlarged area, while also addressing the mismatch between coordinate information of video data and remote controller inputs.

Innovation Solution

A display device that allows for automatic execution of a specific area enlargement mode based on video data category, enabling a graphical user interface for quick and easy checking of enlarged areas, and synchronizing coordinate information between video data and remote controller inputs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If screen ratio adjustment function is used to enlarge full screen, then the entire screen can be enlarged, but a specific user desired portion cannot be enlarged

Engineering Contradiction:
Improveenlargement capabilityVSAvoiduser convenience
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The screen is divided into a first display area showing the entire video signal and a second display area showing an enlarged partial image signal from a specific region. This segmentation allows users to view both the full screen and a magnified portion simultaneously, enabling targeted enlargement of specific areas while maintaining overall context.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If picture in picture function divides display area into first and second display areas, then partial image can be displayed, but the function is complex and not automatically executed

Engineering Contradiction:
Improvedisplay flexibilityVSAvoidcontrol complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system automatically determines whether to execute the specific area enlargement mode based on category information of the video data without requiring manual user selection. The controller automatically switches between full screen display and specific area enlargement display according to the video category, simplifying user operation while maintaining display flexibility.

Inventive Principle:
Principle #25Self-service

3Measurement precision

If manual selection of enlargement area is required, then specific area can be enlarged, but user cannot quickly check enlarged area and coordinate mismatch occurs

Engineering Contradiction:
Improveenlargement accuracyVSAvoidchecking time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system pre-processes video data to identify category information and automatically determines the appropriate display mode before user interaction. By preliminarily analyzing the video content and setting the enlargement parameters automatically, the system eliminates the time required for manual area selection and coordinate matching, while maintaining precise enlargement of relevant areas.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3934238B1Display device and controlling method thereof
Publication Date: 2025.09.10 LG ELECTRONICS INC
  • EP3934238B1 patent drawingFigure 1
  • EP3934238B1 patent drawingFigure 2
  • EP3934238B1 patent drawingFigure 3

AI summary

A display device including a display module configured to display a content corresponding to a video on a main screen of the display device; an interface module configured to receive an enlargement input request from a remote controller; and a controller configured to enter an enlargement mode in accordance with the enlargement input request received from the remote controller, display a window including the content displayed on the main screen, display an indicator for selecting a specific area of the displayed content within the displayed window, enlarge the selected specific area of the displayed content, and display the enlarged selected specific area of the displayed content on the main screen