Display Device Private Public Region Control via Camera Detection

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Solution Overview

Problem

Enlarged display devices used by multiple users require effective methods to identify and control private and public regions, ensuring secure and efficient user interactions, especially in settings like exhibition centers and theaters.

Innovation Solution

A display device with a private region and a public region, utilizing a control input sensing unit and processor to move control objects between regions based on user inputs and detect user positions using camera and sensor units, allowing secure and controlled interactions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If an enlarged display device is used to serve multiple users, then the display device can support more users and larger interaction area, but it becomes difficult to identify and control private regions versus public regions

Engineering Contradiction:
Improvedisplay areaVSAvoidregion identification and control
Core Design Contradiction:
Area of stationary objectVSEase of operation

Solution Approach 1:

The display area is segmented into multiple private regions (first private region, second private region) and a public region. Each private region is associated with a specific user, allowing the system to distinguish between user-specific content and shared content. This segmentation enables the large display to be effectively divided into controllable zones without requiring complex manual region definition.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The camera unit acts as an intermediary to detect user positions and automatically determine private region boundaries. Instead of requiring users to manually define regions or making the system overly complex, the camera-based detection provides an automatic mediation mechanism that simplifies region identification while maintaining the ability to serve multiple users simultaneously.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the display device displays content for multiple users simultaneously, then user capacity increases, but control and security management becomes more complex

Engineering Contradiction:
Improvemulti-user supportVSAvoidcontrol mechanism
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system performs self-service by automatically detecting user positions through the camera unit and autonomously assigning private regions and control permissions. This eliminates the need for complex manual configuration or centralized control mechanisms, allowing the display device to adapt to multiple users while maintaining simple control architecture.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system dynamically changes display parameters (such as brightness, content visibility, and control permissions) based on detected user positions and private region assignments. This allows the display to adapt to different user scenarios without requiring complex structural changes or multiple display devices.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If private regions are implemented for user-specific content, then user security and privacy are improved, but the control mechanism becomes more complex

Engineering Contradiction:
Improveuser privacy protectionVSAvoidregion control system
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The camera unit serves as an intermediary that automatically detects user positions and provides this information to the control system. This intermediary mechanism simplifies the overall control architecture by handling the complex task of user identification and private region boundary determination automatically, thereby protecting user privacy without significantly increasing system complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3172640B1Display device and method for controlling the same
Publication Date: 2019.11.06 LG ELECTRONICS INC
  • EP3172640B1 patent drawingFigure 1
  • EP3172640B1 patent drawingFigure 2
  • EP3172640B1 patent drawingFigure 3a

AI summary

A display device and a method for controlling the same are disclosed. The method for controlling a display device comprises a display unit configured to display visual information, including a private region and a public region; a control input sensing unit configured to detect a control input and to deliver the detected control input to a processor; and the processor configured to control the display unit and the control input sensing unit. In this case, the processor may display a control object in the private region, detect a first control input, move the control object from the private region to a first position of the public region based on the detected first control input and display a control indicator corresponding to the control object in a second position of the private region. In this case, the second position may be set based on the first position of the control object.