Display Device Alignment Pin Unit and Vacuum Chamber

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Solution Overview

Problem

Current methods for manufacturing display devices face challenges in efficiently aligning and attaching components without defects, such as bubbles, which can lead to reduced manufacturing efficiency and increased production time.

Innovation Solution

An apparatus and method involving a chamber with a pre-alignment unit, linear driving units, a pin unit, and a pressure adjusting system to precisely align and attach a second member to a first member within the chamber, maintaining a vacuum state to prevent bubble formation and ensure accurate attachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If conventional alignment and attachment methods are used, then manufacturing process is simpler, but alignment precision is insufficient and bubbles may form

Engineering Contradiction:
Improvealignment precisionVSAvoidapparatus complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The pre-alignment unit performs preliminary alignment of the second member before the actual attachment process. The pin unit makes preliminary contact at specific positions to establish precise alignment, preventing misalignment and bubble formation during subsequent full attachment.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The pin unit acts as an intermediary mechanism between the pre-alignment unit and the first member. It transfers and refines the alignment by making controlled contact at specific positions, ensuring precise positioning before the attaching roller unit performs full surface attachment.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If attachment process is simplified, then manufacturing time is reduced, but defects such as bubbles may increase

Engineering Contradiction:
Improvemanufacturing efficiencyVSAvoiddefect rate
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The pin unit performs preliminary contact and alignment before the attaching roller unit applies full surface pressure. This preliminary action ensures that components are properly positioned and air pockets are eliminated before final attachment, preventing bubble defects while maintaining efficient manufacturing.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The vacuum environment replaces complex mechanical bubble removal mechanisms. By maintaining vacuum during attachment, air bubbles are prevented from forming or are automatically removed, simplifying the attachment process while ensuring high reliability and defect-free bonding.

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

3Manufacturing precision

If alignment precision is improved, then attachment quality is enhanced, but manufacturing time may increase

Engineering Contradiction:
Improveattachment qualityVSAvoidmanufacturing time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The pre-alignment unit and pin unit perform alignment actions before final attachment. This preliminary alignment ensures high attachment quality by establishing precise positioning, while the integrated design of these units into a single apparatus minimizes the time required for alignment operations.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The pre-alignment unit, pin unit, and attaching roller unit are integrated into a single apparatus that can perform alignment and attachment in a coordinated manner. This merging of functions allows precise alignment and high-quality attachment to be achieved without significant time penalty, as all operations are performed by the same apparatus in sequence.

Inventive Principle:
Principle #5Merging (Combining)

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

The solution enables efficient alignment and attachment of display device components, reducing defects and shortening manufacturing time by simplifying the process and ensuring precise contact without bubbles, thereby improving overall production efficiency.

Implementation Method 1

maintaining a vacuum state to prevent bubble formation

Methodology Applied
Scientific EffectVacuum: Vacuum

Implementation Method 2

a pin unit to bring a portion of the second member of the pre-alignment unit into contact with the first member by extending in the first direction

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Implementation Method 3

a second holder that receives the pre-alignment unit, the second holder being positioned in the chamber opposite the first holder such that the second holders move linearly with respect to each other along a first direction

Methodology Applied
Scientific EffectLinear Motion:

Data Source

PatentUS10439168B2Apparatus for manufacturing display device and method of manufacturing display device using the same
Publication Date: 2019.10.08 SAMSUNG DISPLAY CO LTD
  • US10439168B2 patent drawing
  • US10439168B2 patent drawing
  • US10439168B2 patent drawing

AI summary

An apparatus for manufacturing a display device, the apparatus including a chamber; a first holder in which a first member is to be mounted, the first holder being in the chamber; a pre-alignment unit in which a second member is to be mounted; a second holder that receives the pre-alignment unit, the second holder being positioned in the chamber opposite the first holder such that the second holders move linearly with respect to each other along a first direction; and a pin unit to bring a portion of the second member of the pre-alignment unit into contact with the first member by extending in the first direction, the pin unit being in the chamber.