Image Display Mirroring with Dynamic Certificate Pairing

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Solution Overview

Problem

Existing image display systems face challenges in securely sharing content between image display apparatus and mobile terminals, requiring manual pairing and being vulnerable to security risks, and instability due to varying server addresses.

Innovation Solution

An image display apparatus and mobile terminal system that dynamically generates certificates and security keys based on network addresses, allowing secure and stable content sharing even with varying server addresses.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual pairing setting is performed for mirroring between image display apparatus and mobile terminal, then connection can be established, but the operation process becomes complex and time-consuming

Engineering Contradiction:

Improvepairing operationVSAvoidpairing setup time

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The system performs preliminary actions by automatically generating certificates and security keys before content sharing is requested. The image display apparatus pre-generates these security credentials based on the mobile terminal's network address, so that when mirroring is initiated, the connection can be established immediately without manual pairing configuration.

Inventive Principle:

Principle #10Preliminary action

2Adaptability or versatility

If content sharing through mirroring is implemented, then content can be shared between devices, but security vulnerabilities are introduced

Engineering Contradiction:

Improvecontent sharing capabilityVSAvoidsecurity risk

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces certificates and security keys as intermediary elements between the image display apparatus and mobile terminal. These cryptographic credentials act as mediators that enable secure authentication and encrypted communication channels, allowing content sharing while protecting against security threats through professional certificate authority-issued credentials.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Adaptability or versatility

If server address varies in mobile terminal, then network flexibility is improved, but stable access to server becomes difficult

Engineering Contradiction:

Improvenetwork address flexibilityVSAvoidserver access stability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The system changes the parameter approach by using the mobile terminal's network address as the basis for generating certificates and security keys. This ensures that regardless of how the server address or network configuration changes, the security credentials are dynamically adapted to the current network state, maintaining both flexibility and reliable access.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12506727B2Image display apparatus, mobile terminal, and image system including the same

Publication Date: 2025.12.23 LG ELECTRONICS INC

AI summary

The present disclosure relates to an image display apparatus, a mobile terminal, and an image system including the same. An image display apparatus according to one embodiment of the present disclosure includes: a display; a signal processing device configured to output an image signal to the display; and an interface configured to exchange data with a mobile terminal or a server, in which the interface receives a connection request and a network address of the mobile terminal from the mobile terminal, and the signal processing device is configured to generate a certificate and a security key based on the network address of the mobile terminal, and transmit the generated certificate and security key to the mobile terminal. Therefore, the certificate may be dynamically generated.