Half-Cut Target Separation for Precise Display Deposition

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Solution Overview

Problem

In the manufacturing of display apparatuses, interference between mask sheets and shield sticks during deposition can lead to suboptimal deposition of materials, degrading the quality of the deposited layers.

Innovation Solution

An apparatus and method that includes a separation part with moving parts to gradually increase the distance between target portions, utilizing conveyors and transfer robots to accurately position and separate half-cut targets into multiple portions, and a residue storage to manage leftover materials.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If mask sheets and shield sticks are used during deposition, then deposition coverage is improved, but interference between components occurs leading to degraded deposition quality

Engineering Contradiction:
Improvedeposition qualityVSAvoidinterference between mask sheet and shield stick
Core Design Contradiction:
Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The patent extracts and removes the shield stick from the deposition system, replacing it with a modified mask sheet design that performs both masking and shielding functions separately, eliminating the interference problem between the two components

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The mask sheet is designed to perform multiple functions: it serves as both the masking element for pattern definition and incorporates shielding structures integrated into its design, eliminating the need for separate shield sticks and preventing interference

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Loss of substance

If half-cut targets are used, then material utilization is improved, but separation and positioning precision becomes difficult to maintain

Engineering Contradiction:
Improvematerial utilizationVSAvoidseparation and positioning precision
Core Design Contradiction:
Loss of substanceVSManufacturing precision

Solution Approach 1:

The patent applies preliminary cutting to divide the target into half-cut portions before deposition, optimizing material utilization while maintaining precise positioning through controlled separation mechanisms that prepare the target in advance for accurate placement

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent replaces manual or simple mechanical separation methods with a controlled separation mechanism that uses precise positioning and movement systems to separate half-cut targets, maintaining manufacturing precision while enabling effective material utilization

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

Data Source

PatentUS20240063032A1Apparatus and method for manufacturing display apparatus
Publication Date: 2024.02.22 SAMSUNG DISPLAY CO LTD
  • US20240063032A1 patent drawing
  • US20240063032A1 patent drawing
  • US20240063032A1 patent drawing

AI summary

According to an embodiment, an apparatus for manufacturing a display apparatus includes a separation part to separate a half-cut target into a plurality of target portions, wherein the separation part includes a plurality of first moving parts each driven in a driving direction to move the target, and as each of the plurality of first moving parts is driven, a distance between the separated target portions gradually increases.