Magnetic Positioning for Substrate-Free Display Chassis

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Solution Overview

Problem

Current display device manufacturing methods face inefficiencies in controlling the position of components and achieving a substrate-free structure, leading to challenges in process efficiency and aesthetics.

Innovation Solution

A method involving a chassis part with an electromagnet, a guide jig, and a base resin is used to precisely position and shape the resin part, allowing for a substrate-free structure and improved process efficiency by closely controlling the arrangement of components using magnetic manipulation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional manufacturing methods are used, then substrate structure is maintained, but process efficiency is reduced and component position control is difficult

Engineering Contradiction:
Improveprocess efficiencyVSAvoidcomponent position control
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent removes the substrate from the display device structure in regions outside the display surface, extracting only the necessary functional components (chassis part, resin part, circuit board) while eliminating the substrate that hinders manufacturing efficiency and position control

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces mechanical positioning methods with magnetic field-based positioning using an electromagnet. The electromagnet precisely controls the position of the chassis part and resin part through magnetic attraction, achieving superior positioning accuracy compared to conventional mechanical methods

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If substrate is provided outside display surface, then structural support is maintained, but aesthetics deteriorate and process efficiency reduces

Engineering Contradiction:
Improveprocess efficiencyVSAvoidaesthetics
Core Design Contradiction:
ProductivityVSShape

Solution Approach 1:

The substrate is extracted from regions outside the display surface, creating a substrate-free structure that improves aesthetics by eliminating visible substrate edges while maintaining the display surface integrity. This extraction also streamlines the manufacturing process

Inventive Principle:
Principle #2Taking out (Extraction)

3Manufacturing precision

If chassis part has bending areas, then flexibility is improved, but manufacturing precision and aesthetics worsen

Engineering Contradiction:
Improvechassis part flatnessVSAvoidchassis part flexibility
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The patent uses a thin film resin part that provides the necessary flexibility and adaptability for the chassis structure, replacing the need for bending areas in the rigid chassis part. The resin film can deform as needed while the chassis part remains flat and precise

Inventive Principle:
Principle #30Flexible shells and thin films

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 method enhances process efficiency, reduces component thickness, and improves the aesthetics of the display device by enabling a thin, flat chassis part without bending areas, while maintaining precise control over component placement.

Implementation Method 1

a chassis providing unit including an electromagnet

Methodology Applied
Scientific EffectMagnetic field: Magnetic Field

Implementation Method 2

providing a chassis part using a chassis providing unit including an electromagnet

Methodology Applied
Scientific EffectElectromagnet: Electromagnet

Data Source

PatentUS11882663B2Method of manufacturing display device and display device manufactured using the same
Publication Date: 2024.01.23 SAMSUNG DISPLAY CO LTD
  • US11882663B2 patent drawing
  • US11882663B2 patent drawing
  • US11882663B2 patent drawing

AI summary

A method of manufacturing a display device includes providing a display layer including a light-emitting element, providing a base resin on the display layer, providing a chassis part by using a chassis providing unit including an electromagnet, providing a resin part by transforming a shape of the base resin, and separating the chassis providing unit from the display layer.