Dual-Mode Power Supply for Displays with Cable Detection

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Solution Overview

Problem

Conventional wireless power transmission devices and display systems face inefficiencies due to the need for close proximity, increased manufacturing costs when integrated as stands, and lack of easy conversion between wireless and wired power transmission methods, along with inadequate user notification for power disconnection issues.

Innovation Solution

A power supply device with both wired and wireless power capabilities, including a detector and processor to determine connection methods and notify users of power status through UI or audio cues, allowing flexible power delivery and user preference in device placement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If a wireless power transmission device is disposed close to a display device to maintain constant power transmission efficiency, then power transmission efficiency is maintained, but device placement flexibility is reduced

Engineering Contradiction:

Improvepower transmission efficiencyVSAvoiddevice placement flexibility

Core Design Contradiction:

Loss of energyVSAdaptability or versatility

Solution Approach 1:

The system dynamically switches between wireless and wired power transmission modes based on connection status. The processor detects cable connection states and automatically selects the appropriate power supplier, enabling the system to adapt to different placement scenarios while maintaining optimal power transmission efficiency.

Inventive Principle:

Principle #15Dynamics

2Stability of the object's composition

If a separate stand is integrally formed with a display device to support it, then structural stability is improved, but manufacturing cost increases and wireless power transmission efficiency is degraded due to shielding

Engineering Contradiction:

Improvestructural stabilityVSAvoidwireless power transmission efficiency

Core Design Contradiction:

Stability of the object's compositionVSLoss of energy

Solution Approach 1:

The system separates the power transmission function from the display device by using a standalone power supply device. This segmentation eliminates the shielding problem caused by integral stands while maintaining structural stability through separate positioning of the power transmission components.

Inventive Principle:

Principle #1Segmentation

3Shape

If a wireless power transmission device is designed together with a display device to provide unified aesthetics, then appearance consistency is improved, but power transmission efficiency is reduced when used as a stand due to shielding

Engineering Contradiction:

Improveappearance consistencyVSAvoidpower transmission efficiency

Core Design Contradiction:

ShapeVSLoss of energy

Solution Approach 1:

The system introduces a separate power supply device as an intermediary component that provides power transmission without being integrated into the display device structure. This mediator approach maintains aesthetic consistency while avoiding the shielding effect that would occur with integral design.

Inventive Principle:

Principle #24Intermediary (Mediator)

4Reliability

If wired connection between display device and power supply device is disconnected, then system reliability should be maintained, but conventional devices lack user notification and guidance for power connection issues

Engineering Contradiction:

Improvesystem reliabilityVSAvoiduser notification and guidance

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The system implements feedback mechanisms through the processor that detect cable disconnection states and provide real-time user notifications. The processor controls indicators to inform users of power connection status and guides them to reconnect power, maintaining system reliability while improving ease of operation.

Inventive Principle:

Principle #23Feedback

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables efficient power delivery in both wired and wireless modes, reduces manufacturing costs by separating power transmission components, and provides clear user notifications for power connection status, enhancing user convenience and system reliability.

Implementation Method 1

A conventional wireless power transmission device and a conventional display device using the same transmitted and received power between each other by using a magnetic coupling or magnetic resonance coupling logic

Methodology Applied

Scientific EffectMagnetic coupling: Electromagnetic Induction

Implementation Method 2

Methodology Applied

Scientific EffectMagnetic resonance coupling: Resonance

Data Source

PatentUS11500437B2Power supply device for display device by a wired or wireless manner, display system including same, and power selection method for power supply device

Publication Date: 2022.11.15 SAMSUNG ELECTRONICS CO LTD

AI summary

A power supply device and a display system including the same are provided. A power supply device according to the disclosure is disposed so as to be spaced apart from a display device and supplies power to the display device, and includes a first power supplier which supplies power to the display device through a cable in a wired manner, a second power supplier which supplies power to the display device in a wireless manner, a detector for detecting whether the power supply device is connected to the display device through the cable, and a processor configured to control the second power supplier in a state in which the display device and the power supply device are disconnected, such that power is supplied in the wireless manner, and control the first power supplier based on detecting connection between the display device and the power supply device, such that power is supplied in the wired manner.