Display Stand Approach Detection for Non-Contact Power Control

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Solution Overview

Problem

Conventional display systems require users to physically interact with key-switches to control power on/off, which can be cumbersome and prone to error.

Innovation Solution

A display system with a support stand featuring an approaching detection unit that recognizes commands from a user's presence, allowing power control without physical contact, and utilizes a light emission unit to confirm command inputs and prevent errors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a key-switch is used for power control, then the display system can be operated, but the user must physically contact the switch which is troublesome and prone to error

Engineering Contradiction:

Improvepower control convenienceVSAvoidcommand input accuracy

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent replaces the mechanical key-switch with an approaching detection unit that uses non-contact sensing (optical, electromagnetic, or other detection fields) to detect when a user approaches. This substitution eliminates the need for physical contact while maintaining reliable command input, directly resolving the contradiction between ease of operation and reliability.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If non-contact detection is used for power control, then user convenience is improved, but the system complexity increases

Engineering Contradiction:

Improvenon-contact control capabilityVSAvoiddetection and control system structure

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The approaching detection unit is integrated into the support stand structure, which also houses the light emission unit for feedback. This multi-functional integration allows the support stand to serve both structural and detection/control functions, reducing overall system complexity while enabling non-contact operation.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system incorporates a light emission unit that provides visual feedback through different light patterns to confirm detection results and command recognition. This feedback mechanism simplifies the user interface by providing intuitive confirmation without requiring complex display or communication systems.

Inventive Principle:

Principle #23Feedback

3Device complexity

If the detection unit is integrated into the support stand, then the system structure is compact, but the detection precision may be affected

Engineering Contradiction:

Improvesystem integration levelVSAvoidobject approach detection accuracy

Core Design Contradiction:

Device complexityVSMeasurement precision

Solution Approach 1:

The detection unit is positioned at a specific location on the support stand where it can optimally detect user approach without interference from other system components. The support stand structure is designed to provide an unobstructed detection path, ensuring high detection precision while maintaining compact integration.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS8681141B2Method for controlling the power of a display based on the approach of an object detected by a detection unit on the support stand

Publication Date: 2014.03.25 LG ELECTRONICS INC

AI summary

A display system is provided. The display system includes a display unit for displaying an image, a support stand for supporting the display unit, a power source unit for supplying power to the display unit, an approaching detection unit that is formed on the support stand to detect an approach of an object, and a control unit for controlling the power source unit by recognizing a predetermined command corresponding to a detection signal from the approaching detection unit.