Wireless Power Transmission for Rotating 3D Display Assembly

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Solution Overview

Problem

Existing 3D display devices face poor display effects due to power supply lines constraining the rotation of the display assembly, which affects the presentation of 3D images.

Innovation Solution

A display device incorporating a wireless power transmission structure that uses electromagnetic mutual inductance to deliver power to a wireless power reception structure, allowing the display assembly to rotate independently without interference from the power supply lines.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If power supply lines are used to connect the driving assembly to the display assembly, then power can be transmitted to the display assembly, but the power supply lines constrain the rotation of the display assembly and deteriorate the display effect

Engineering Contradiction:

Improvedisplay effectVSAvoidrotation freedom

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent replaces the mechanical power transmission system (power supply lines) with an electromagnetic field-based wireless power transmission system. The driving assembly includes a wireless power transmission structure that generates an electromagnetic field to transmit power to the display assembly, eliminating the need for physical power supply lines and thereby removing the constraint on rotation.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces an electromagnetic field as an intermediary to transmit power from the driving assembly to the display assembly. The wireless power transmission structure generates an electromagnetic field that acts as a mediator, allowing power transfer without direct physical connection, thus enabling free rotation of the display assembly.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If power supply lines are used to supply power to the display assembly, then the display assembly can operate, but the power supply lines interfere with the motor's rotation and reduce productivity

Engineering Contradiction:

Improverotation speedVSAvoidpower supply structure

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent extracts and removes the power supply lines from the system by implementing wireless power transmission. The wireless power transmission structure and wireless power reception structure enable power transfer without physical connections, completely eliminating the power supply lines that were constraining the rotation and reducing productivity.

Inventive Principle:

Principle #2Taking out (Extraction)

3Adaptability or versatility

If wireless power transmission structure is made independent from the display assembly, then the display assembly can rotate freely, but the device complexity increases

Engineering Contradiction:

Improverotation freedomVSAvoidpower transmission structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the wireless power transmission structure with the driving assembly, combining multiple functions into a single integrated unit. The driving assembly includes both the motor for rotation and the wireless power transmission structure for power supply, reducing overall device complexity while maintaining rotation freedom.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The driving assembly is designed with multi-functionality, serving both as the rotation actuator (motor) and as the power transmission system (wireless power transmission structure). This universal design reduces the need for separate components, thereby reducing device complexity while enabling free rotation of the display assembly.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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

Ensures a good display effect by allowing the display assembly to rotate freely while receiving power, enhancing the presentation of 3D images without hindering the motor's rotation.

Implementation Method 1

the wireless power reception structure is wiredly connected to the display assembly and capable of delivering power to the wireless power reception structure by electromagnetic mutual inductance

Methodology Applied

Scientific EffectElectromagnetic mutual inductance: Electromagnetic Induction

Data Source

PatentUS11721251B2Display device including a motor configured to rotate a display assembly

Publication Date: 2023.08.08 BEIJING BOE OPTOELECTRONCIS TECH CO LTD

AI summary

A display device for presenting 3D images is disclosed. The display device includes: a display assembly; a hollow housing assembly, wherein the display assembly is disposed in the housing assembly; a motor connected to the display assembly and configured to drive the display assembly to rotate; and a driving assembly connected to the display assembly and configured to drive the display assembly to display images, wherein the driving assembly includes a wireless power transmission structure and a wireless power reception structure, wherein the wireless power transmission structure is independent from the display assembly and wiredly connected to a first driving power supply, and the wireless power reception structure is wiredly connected to the display assembly and capable of delivering power to the wireless power reception structure by electromagnetic mutual inductance.