3D Display Assembly With Inductive Power for Free Rotation

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Solution Overview

Problem

Existing 3D display devices face challenges in achieving effective image display due to the presence of power supply lines that hinder the rotation of the display assembly, resulting in poor display effects.

Innovation Solution

The display device incorporates a power transmission structure that delivers power to a power reception structure via electromagnetic mutual inductance, allowing the power reception structure to rotate synchronously with the display assembly while the power transmission structure remains independent, thus avoiding interference with the display assembly's rotation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If power supply lines are used to connect the driving assembly to the display assembly, then power can be supplied to the display assembly, but the power supply lines hinder the rotation of the display assembly and result in poor display effects

Engineering Contradiction:

Improvepower supply to display assemblyVSAvoidrotation of display assembly

Core Design Contradiction:

Use of energy by moving objectVSEase of operation

Solution Approach 1:

The patent replaces the mechanical power transmission system (power supply lines) with an electromagnetic field-based power transmission system. The driving assembly includes a power transmission structure with electromagnetic induction coils that wirelessly transmit power to the display assembly through electromagnetic mutual inductance, eliminating the need for physical power supply lines that would constrain rotation.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Power

If the power transmission structure is connected to the display assembly, then power can be transmitted, but it interferes with the free rotation of the display assembly

Engineering Contradiction:

Improvepower transmission to display assemblyVSAvoidrotation freedom of display assembly

Core Design Contradiction:

PowerVSAdaptability or versatility

Solution Approach 1:

The patent extracts the power transmission function from the mechanical connection system. The power transmission structure is designed as an independent module with electromagnetic induction coils that can transmit power through the air gap without being mechanically coupled to the rotating display assembly, thus separating the power transmission function from the rotation constraint.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces an electromagnetic field as an intermediary medium for power transmission. The power transmission structure uses electromagnetic induction coils that generate an electromagnetic field to transfer power to the display assembly without requiring direct physical contact or mechanical connection, allowing the display assembly to rotate freely while maintaining power supply.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Device complexity

If traditional power supply lines are used, then the structure is simple, but the display effect is poor due to rotation constraints

Engineering Contradiction:

Improvestructural simplicityVSAvoiddisplay effect quality

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent replaces the simple mechanical power supply line structure with an electromagnetic power transmission system consisting of induction coils and circuit boards. Although this increases structural complexity, it eliminates the rotation constraint problem and significantly improves display effect quality by enabling free rotation of the display assembly.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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

This solution ensures a good display effect by allowing the display assembly to rotate freely without the constraints of power supply lines, thereby enhancing the 3D image presentation.

Implementation Method 1

the power transmission structure is independent from the display assembly and wiredly connected to a first driving power supply, and the power reception structure is wiredly connected to the display assembly and capable of delivering power to the power reception structure by electromagnetic mutual inductance

Methodology Applied

Scientific EffectElectromagnetic mutual inductance: Electromagnetic Induction

Data Source

PatentUS12274016B2Display device including a motor configured to rotate a display assembly

Publication Date: 2025.04.08 BEIJING BOE OPTOELECTRONCIS TECH CO LTD

AI summary

A display device for presenting 3D images is provided. The display device includes: a display assembly; a hollow housing assembly; a motor connected to the display assembly; a driving assembly connected to the display assembly; and a hollow base assembly; wherein the driving assembly comprises a power transmission structure and a power reception structure, the power transmission structure is independent from the display assembly and wiredly connected to a first driving power supply, and the power reception structure is wiredly connected to the display assembly and capable of delivering power to the power reception structure by electromagnetic mutual inductance; and the base assembly comprises a first cylinder and a first plate fixedly connected to one end of the first cylinder; the first plate comprises a plate body and a cushion, and the cushion covers a side, proximal to the first cylinder, of the plate body.