DisplayTechnologies

Glass Manufacturing Introduction

Nov. 13th, 2008Corning Display Technologies

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• Process Overview

• Melting process

• Forming process

• Finishing process

• Packaging

Content

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Inspection Packing

Raw Materials Melting Forming

Beveling and Washing

Cutting

Glass Manufacturing Process OverviewMelting Forming Finishing

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• Glass composition is mixed before the melting process

• Stirring mixes the glass thermally and compositionally

MeltingMixing

Raw materialsQualityControl

Raw Materials & Melting

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Forming Fusion)

Inspection

QC

Packaging

• Surfaces formed in air– Pristine surface - requires no polishing

• Tight thickness tolerance– Thickness depends on drawing speed

• Uniformity in large sizes

Fusion Overflow Forming

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• Invented by Corning in 1960’s.

• Our proprietary fusiontechnology is scalable toproduce large-Gen substrates

• Fusion draw width is increasedto allow large substrates to beformed

• No inherent limit in fusionforming process

Fusion Overflow Forming

Gen8

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• First developed by Pilkington in Late 1959• Molten glass formed on a tin bath.• Float glass requires polishing to achieve thin thickness & uniformity.

Float Process

1st IN-LINEINSPECTION

SCRIBE –BREAK -CHAMFER ONE STEP

POLISHING

In linecleaning In-line or batch cleaning

FINAL INSPECTION

2nd IN-PROCESSINSPECTION

Tin bathMelting

Glass

Fining Annealing

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Float Process• Over 90% of the world’s sheet glass is produced using this process.• The glass and the tin do not mix because the glass is highly viscous and

the tin is very fluid. This allows for the surface between the two materialsto be extremely flat.

• The typical thickness of glass is 2mm to 19mm.

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Finishing Process

Orientation Cut/Corner Cut

Packing

Brush wash

Washing

US wash

Auto Inspection System

Cutting/Venting

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PP case L-supporter

Packaging –Gen 5 & below

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Standard Packaging20 units / case

DensePak™up to 500 units / case

•DensePakTM systems safelytransport & store up to 25 timesmore substrates per case.

Innovative Packaging for Larger SubstratesInnovative Packaging for Larger Substrates

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•~ 500 pieces of Gen 5 glass, sheetcount depending on floor loadlimitation•Non-adhesive film on both sides•Interleave paper in between.

Fully Assembled(Ready to Ship)

Packaging – Gen5 ~ Gen6 DensePakPackaging – Gen5 ~ Gen6 DensePak

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Packaging – Gen7.5 DensePak_ Shutter type• Cover integrated to main frame, operated manually or by

automation• Retainer is attached to main frame, removed manually and stored

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Thank you for your time!

Any Questions?!