Motor Power Sharing Control in Movable Display Units

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Solution Overview

Problem

Conventional display devices require a separate motor-only power supply module, leading to increased costs and complexity in designing a power circuit for the motor.

Innovation Solution

A display device that allows the motor to receive power from another power supply module by reducing power usage in other modules, using a processor to determine if motor driving power is secured and adjusting image or sound output settings to secure the necessary power.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If a separate motor-only power supply module is designed, then the motor can receive sufficient power, but the cost and complexity of the power circuit increases

Engineering Contradiction:

Improvemotor driving powerVSAvoidpower circuit complexity

Core Design Contradiction:

PowerVSDevice complexity

Solution Approach 1:

The patent merges the motor power supply function with existing power supply modules (panel power supply unit or sound power supply unit). Instead of designing a separate motor-only power supply module, the motor is configured to receive power from these existing modules, thereby reducing power circuit complexity and cost while still providing sufficient motor driving power.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The existing power supply modules (panel power supply unit and sound power supply unit) are made multi-functional by enabling them to supply power to multiple components including the motor. This universal approach allows one power supply module to serve multiple purposes, eliminating the need for dedicated motor power supply circuitry.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Device complexity

If power is supplied to the motor from another power supply module, then the cost of power supply module is reduced, but the power available to other modules decreases

Engineering Contradiction:

Improvepower supply module costVSAvoidpower available to display unit and audio output unit

Core Design Contradiction:

Device complexityVSUse of energy by moving object

Solution Approach 1:

The system dynamically adjusts power distribution based on operational requirements. The processor monitors power availability and dynamically controls the motor operation timing and duration to ensure that power is allocated appropriately between the motor and other modules at different times, preventing power deficiency in any single module.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes operational parameters such as motor driving time, image brightness, and audio output levels to optimize power distribution. By adjusting these parameters, the system ensures that the motor receives sufficient power from shared power supply modules while maintaining adequate power supply to other components.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20250123671A1Display device

Publication Date: 2025.04.17 LG ELECTRONICS INC

AI summary

The present disclosure provides a display device including a display unit configured to output an image source, a motor configured to provide a power source for movement of the display unit, a panel power supply unit configured to output power supplied from an external power source to the display unit or the motor, and a processor configured to receive a movement command for the display unit, determine whether motor driving power required for the motor is secured in response to the movement command, and when it is determined that the motor driving power is secured, control the motor receiving power from the panel power supply unit to perform a moving operation of the display unit.