Henkel s Solutions for Touch Panels & Displays

16 

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Henkel offers complete engineering services for projects demanding

expertise and support beyond the limits of standard technical

services. Our engineers provide the following value-added services.

• On-site engineering assistance and consultation

• Joint product development programs

• Contract lab services and testing

• Prototype testing

• Custom formulations

Engineering Services

Achieving more with less

Our commitment to leadership in sustainability is deeply embedded in our values.

With our revised Sustainability Strategy for 2030, we are building on our strong

track record. At the same time, we are aiming to address one of the central future

challenges: to decouple growth from resource consumption. At the heart of this

strategy is therefore the simple, yet challenging, ambition: to achieve more with

less. It aims to create more value for our customers, consumers, communities and

the company alike, while simultaneously reducing the environmental footprint.

(3)

www.Loctite.com/loca

your totaL SoLution providEr for adhESivES,

SEaLantS and functionaL coatingS

Through close customer partnership,

industry know-how and engineering

support, we enable innovative design

for handheld devices and displays

customer

intimacy

Through close collaboration and

intimate knowledge of customer

applications and processes, Henkel

creates exciting solutions that

enable innovation.

Engineering

Support

With unsurpassed development,

engineering and field support –

Henkel provides the expertise to

empower customers to improve

quality, efficiency and innovation.

global

capabilities

We are the global

technology leader with an

extensive network to support

the customers’ value stream.

innovation

Leader

As the innovation leader

in sealing, bonding and coating

– Henkel delivers solutions to

meet fast design changes and

developmental challenges.

design

partnership

Our experienced team of

engineers provide

documented design and

(4)

LOCTITE

Liquid Optically Clear

Adhesives (LOCAs)

The primary function of an

optically clear adhesive in a

display is to eliminate reflection

loss and/or glare caused by air

gaps between touch panel layers.

Today the majority of touch

panels are small (< 4’’), resistive

and capacitive touch panels that

are used in mobile devices. These

small touch panels are normally

assembled using an optically clear

double sided tape.

But the touch panel market is

rapidly changing. As the average

touch panel size increases

with tablets and monitors

becoming more common and the

performance requirements of

optically clear adhesives increases,

table 1

illustrates the clear

performance and manufacturing

advantages of LOCA over OCA

tape which will drive the rapid

adoption of LOCA over the next

several years.

Performance Comparison: LOCA vs. OCA Tape

Benefits of LOCA

In mobile devices, laptops, tablets, monitors and television sets, the majority of the designs

today do not have a touch panel and have at least one air gap between the cover glass and

the LCD module. Over the next several years, the touch interface will become ubiquitous in

displays and manufacturers will strive to improve the customer experience by:

improving the viewing experience

— with LOCA and A / R glass you can increase contrast ratio by 400% in sunlight. Henkel has

minimized loss due to reflection by matching the refractive index (1.5) to glass and PMMA.

increasing display ruggedness

— for large gaps up to 1 mm, you can increase the falling ball impact resistance by up to 3X.

Extending battery life

— by reducing light loss due to reflection, the end user can get a superior viewing

experience with less power consumption greatly extending battery life.

Extending display product life

— LOCA makes a display more durable to heat, moisture and temperature cycling.

Enabling thinner designs

— LOCA will absorb the impact of a given load when compared to an assembly with an air

gap, allowing for thinner designs while protecting the display surface.

taBLE 1

Loca

oca tape

Gap Filling

(Edge of Ink Coating) Excellent General / poor

Repairability Repair can be done at pre-curing

stage Cannot be done

Assembly Process Can be fully automated Semi-automated

Adhesion / Reliability High Low

Large Panel More suitable Less suitable

Inventory Size independent Various pre die cut needed

Surface Preparation Less demanding More demanding

Equipment Adhesive application, assembly at

ambient or vacuum, pre-cure and full cure

Roller lamination and autoclave

EnhancE diSpLayS with SupErior pErformancE

and EaSy procESSaBiLity

(5)

Typical LOCA Applications

cover Lens

cover Lens

touch panel Sensor

Loca

direct Bonding

display module

Loca

cover Lens Bonding

dam Loca

SEE pagE 6 SEE pagE 7 SEE pagE 11

Loca

Loca

Glass or PMMA with ink

Typical gaps are ~100 - 150 um

Typical gaps are ~200 - 300 um

Used to control the flow of the LOCA

Typically open or closed cell LCD or OLED

Typically glass or films with a flexible

printed circuit connector

cover Lens

cover Lens Bonding

touch panel Sensor

direct Bonding

(6)

Cover Lens Bonding

Introduction

Bonding the cover lens to the touch panel sensor is generally

straight forward when both are made of glass. Normally a

fast curing, high strength, refractive index matched LOCA is

desired and many are available which can meet the needs of

the application. In this case, the key differentiators are often

related to the manufacturing consideration such as the LOCA

application time, cure time and first pass manufacturing yield.

When using a plastic cover lens or film touch panel sensor, the

plastic is more difficult to adhere to than the glass and it has

different coefficients of thermal expansion than the glass. This

make the application more challenging and a very high strength

LOCA such as LOCTITE

®

3193HS is typically required.

common materials

Glass or PMMA

ITO coated glass

ITO coated PET films

typical gap

100 - 150 micron

Key performance requirements

Low viscosity

High durometer / modulus

High adhesion to glass & plastic

> 99% transmission

< 1% haze

< 1 yellowness (b*)

typical reliability requirements

HT: 80 °C for 1,000 hours

HTHH: 60 °C / 90% RH for

500 hours

TC: -40 °C / 80 °C for 500 cycles

UV: UV aging for 500 hours

recommended adhesives

High performance

,

second generation – LOCTITE

®

3194

General purpose

,

first generation – LOCTITE

®

3195

PMMA

cover lenses

– LOCTITE

®

3193HS

Film

touch panel sensors

– LOCTITE

®

3193HS

Secondary heat cure

– LOCTITE

®

3192

Secondary moisture cure

– LOCTITE

®

5192

characteristics LoctitE® 3192 LoctitE® 3193hS LoctitE® 3194 LoctitE® 3195 LoctitE® 3800 LoctitE® 5192

Chemistry Acrylic Acrylic Acrylic Acrylic Acrylic Silicone

Curing Method 1 UV / Heat

(80 ºC / 1 hour) UV UV UV UV UV / Moisture

Full Cure Energy (mJ/cm2)

(@ 100 mW/cm2 UVA, MPMA UV Source) 4,000 3,000 2,000 3,000 2,000 5,000 Viscosity (cP @ 25 °C) 4,000 - 5,000 4,600 - 6,800 1,800 - 2,800 3,000 - 4,000 2,500 - 3,500 3,500 - 5,500 Hardness (Shore 00) 56 65 60 22 45 65 Shear Modulus-G' (Kpa, Rheometer) 83 8,830 78 42 100 70 Elongation 100% 300% 150% 250% 1000% 100% Refractive Index 1.49 1.51 1.51 1.51 1.47 1.41 Transmittance (%) (average 380 - 780 nm) > 99 > 99 > 99 > 99 > 99 > 99 Volume Shrinkage (%) 3.00 3.10 3.00 1.56 3.00 0.54

Adhesion - Glass to Glass,

100 μm (MPa) 1.1 7.6 5.0 1.2 1.6 0.4

Adhesion - Glass to Polarizer (Nitto Denko AG

254 μm gap) (MPa) - - - - 0.86 0.59 Adhesion - Glass to Polarizer (LG Bare 254 μm gap) (MPa) - - - - 0.85 0.63 Yellowness (b*) 0.30 0.10 0.01 0.41 0.10 0.19 Haze (%) < 0.20 0.09 0.12 < 0.20 0.11 0.04 Dielectric Constant (1 MHz) 4.69 3.24 2.83 2.45 3.93 3.10

1. UVV curable for all products except LOCTITE® 5192 & LOCTITE® 5192DM, while it needs to be tested according to actual conditions.

Selector Guide

Cover Lens

LOCA

(7)

Introduction

As the end users expectation of the displays appearance and

durability increases, direct bonding is becoming more and

more common. Direct bonding is much more challenging than

cover lens bonding for a variety of reasons. First, LOCA for

direct bonding must prevent MURA issue while maintaining

high adhesion strength. Second, the polarizer film that is the

top layer of the LCD display modules is harder to bond than

glass. Lastly, due to end devices’ designs, there can inevitably

be shadow areas between LCD and touch or cover lens. Henkel

has developed a variety of direct bonding adhesives that were

specifically formulated for this application and are used in mass

production applications today.

common materials

ITO coated glass

Glass or PMMA

Polarizer film

typical gaps

~200 - 300 micron

Key performance requirements

Low viscosity

Low durometer / modulus

Low shrinkage

High adhesion to glass & plastic

> 99% transmission

< 1% haze

< 1 yellowness (b*)

typical reliability requirements

HT: 80 °C for 1,000 hours

HTHH: 60 °C / 90% RH for

500 hours

TC: -40 °C / 80 °C for 500 cycles

UV: UV aging for 500 hours

recommended adhesives

Ultra low MURA

,

second generation

– LOCTITE

®

3191, LOCTITE

®

3198 and

LOCTITE

®

3199

General purpose

,

first generation – LOCTITE

®

3196

Ultra fast curing

– LOCTITE

®

3191 and LOCTITE

®

3199

Secondary moisture cure

– LOCTITE

®

5192

Excellent side cure

– @ 365 nm LED: LOCTITE

®

3191

and LOCTITE

®

3196

– @ 405 nm LED: LOCTITE

®

3191,

LOCTITE

®

3196 and LOCTITE

®

3199

characteristics LoctitE® 3191 LoctitE® 3196 LoctitE® 3198 LoctitE® 3199 LoctitE® 5191 LoctitE® 5192 LoctitE® 5193 LoctitE® 3196pr

Chemistry Acrylic Acrylic Acrylic Acrylic Silicone Silicone Silicone Acrylic

Curing Method 1

UV UV UV UV UV UV / Moisture UV / Moisture UV / 7389 primer

Full Cure Energy (mJ/ cm2) (@ 100 mW/cm2

UVA, MPMA UV Source) 1,000 3,000 2,000 1,000

1,000 - 3,000 5,000 1,000 - 3,000 3,500 Viscosity (cP @ 25 °C) 1,800 - 2,800 3,200 - 4,200 3,600 - 5,200 2,8001,800 - 2,200 - 3,200 3,500 - 5,500 2,400 - 3,400 3,200 - 4,200 Hardness (Shore 00) 5 11 5 8 68 65 70 3 Shear Modulus-G' (Kpa, Rheometer) 10 17 13 14 119 - 208 70 114 - 205 16 Elongation 300% 300% 700% 400% 130% 100% 120% 200% Refractive Index 1.47 1.51 1.52 1.47 1.41 1.41 1.41 1.51 Transmittance (%) (average 380 - 780 nm) > 99 > 99 > 99 > 99 99.61 > 99 99.7 > 99 Volume Shrinkage (%) 1.60 1.39 1.10 1.60 < 0.50 0.54 < 0.70 1.26 Adhesion - Glass to Glass, 100 μm (MPa) 0.7 1.0 0.7 0.6 0.3 0.4 0.5 0.9 Adhesion - Glass to Polarizer (Nitto Denko

AG 254 μm gap) (MPa) 0.20 0.37 0.29 0.27 0.17 0.59 0.23 0.33 Adhesion - Glass to Polarizer (LG Bare 254 μm gap) (MPa) 0.19 0.21 0.24 0.25 0.23 0.63 0.23 0.20 Yellowness (b*) 0.05 0.18 0.06 0.16 0.07 0.19 0.04 0.09 Haze (%) < 0.20 < 0.20 < 0.10 0.10 0.20 0.04 0.10 0.20 Dielectric Constant (1 MHz) 2.73 2.51 2.29 2.61 2.87 3.10 2.88 2.58

1. UVV curable for all products except LOCTITE® 5192 & LOCTITE® 5192DM, while it needs to be tested according to actual conditions.

Direct Bonding

Selector Guide

Cover Lens / ITO

LCD Module

Dam LOCA LOCA

LoctitE® 7389 - primer for LoctitE® 3196pr

Blue Green Clear Color

Acetone Solvent

1 - 2 Viscosity (cP @ 25 °C)

0.8 Specific Gravity

10 – 20 seconds Evaporation Time

(8)

Selector Guide

Introduction

Effective cleaners are critical to ensuring that a manufacturing process has the lowest total

cost of ownership. Henkel has developed two cleaners that are developed specifically for

LOCTITE LOCAs. LOCTITE

®

SF 7190 is a hand wipe cleaner designed to remove dust, finger

prints and small cured particles of LOCA. This is a fast evaporating solvent that is designed

for manual processes. LOCTITE

®

SF 7191 is a slow evaporating, high flash point solvent that is

designed for automated processes that will remove the LOCA after it has been fully cured.

These cleaners are compatible with all LOCTITE

®

LOCAs except:

LOCTITE

®

3193HS

Any LOCTITE

®

LOCA on SiO2 hard coat

common materials

ITO coated glass

Glass

PMMA

typical gaps

~100 - 300 micron

characteristics

LoctitE

hand wipe cleaner

®

Sf 7190

LoctitE

fully cured cleaner

®

Sf 7191

Chemical Type Hydrocarbon Limonene

Physical State Liquid Liquid

Color Colorless to light yellow Colorless to light yellow

Odor Medium solvent odor Citrus odor

Flash Point (CC) ( °C) < 5 °C 35 °C

Specific Gravity

(25 °C) 0.70 - 0.80 0.92 - 0.95

Solubility in Water

(kg/m3) Not soluble Can be emulsified in water

Solubility in Acetone Miscible Miscible

Evaporation Time 5 - 10 seconds < 20 minutes

LOCA Cleaner

typical hand wipe cleaning process

1.

Dip the clean cloth, q-tip, wipe, etc… into the cleaner.

2.

Manually wipe the surface removing the LOCA residue and other contaminations.

3.

If necessary, perform a final wipe with IPA or

ethanol to reduce the evaporation time.

typical fully cured cleaning process

1.

Disassemble the display to expose the cured LOCA. This is normally done via a wire cutting process.

2.

Soak the cured LOCA in the cleaner for an extended period, normally 0.5 to 2 hours, using a soaked cloth, dipping process or spraying process. The exposure time will vary by the LOCA type, thickness, substrate type, etc.

3.

If needed, use a plastic squeegee to remove large areas

of softened LOCA.

4.

If needed, use LOCTITE® SF 7190 hand wipe cleaner to remove any small cured particles of LOCA.

5.

If needed, manually wipe surface with IPA or ethanol to reduce the evaporation time.

(9)

Selector Guide

Introduction

OGS (or G2) touch panel in some manufacturing processes requires temporary bonding

adhesive to temporarily fixate pieces of small glass after chemical strengthening on a large

carrier glass and debond them after ITO patterning. Henkel’s LOCTITE

®

3214 and 3215 with

proven commercial success provide a solution for the manufacturing of OGS touch panels.

Key benefits:

Can resist 240 °C for 3 hours with no delamination or cracking

No contamination to photoresist or ITO deposition processes

Resistant to solvent exposure with no delamination or cracking

common materials

Glass after chemical strengthening

Carrier glass

Temporary Bonding Adhesive

characteristics

LoctitE

®

3214

LoctitE

®

3215

Chemistry Acrylate Acrylate

Curing Method 1 UV UV

Full Cure Energy (mJ/cm2)

(@ 100 mW/cm2 UVA, MPMA UV Source) 8,000 8,000

Viscosity (cP @ 25 °C) 3,100 - 5,000 10,500 - 15,500

Hardness (Shore 00) 64 68

Shear Modulus-G' (Kpa, Rheometer) 230 265

Elongation 100% 100%

Refractive Index 1.49 1.50

Transmittance (%) (average 380 - 780 nm) > 98 > 98

Volume Shrinkage (% ) 1.95 1.75

Adhesion - Glass to Glass, 100 μm (MPa) 0.9 1.2

Yellowness (b*) 0.46 0.48

Haze (%) 0.19 0.27

(10)

Product Selector Guide

characteristics

cover Lens Bonding

direct Bonding

dam

temporary Bonding

LoctitE® 3192 LoctitE® 3193hS LoctitE® 3194 LoctitE® 3195 LoctitE® 3800 LoctitE® 3191 LoctitE® 3196 LoctitE® 3196pr LoctitE® 3198 LoctitE® 3199 LoctitE® 5191 LoctitE® 5192 LoctitE® 5193 LoctitE® 3195dm LoctitE® 3198dm LoctitE® 3199dm LoctitE® 5191dm LoctitE® 5192dm LoctitE® 3214 LoctitE® 3215

Chemistry Acrylic Acrylic Acrylic Acrylic Acrylic Acrylic Acrylic Acrylic Acrylic Acrylic Silicone Silicone Silicone Acrylic Acrylic Acrylic Silicone Silicone Acrylate Acrylate

Curing Method 1 UV / Heat

(80 ºC /1 hour) UV UV UV UV UV UV UV / 7389 primer UV UV UV UV / Moisture UV / Moisture UV UV UV UV UV UV UV

Full Cure Energy (mJ/cm2)

(@ 100 mW/cm2 UVA, MPMA UV Source) 4,000 3,000 2,000 3,000 2,000 1,000 3,000 3,500 2,000 1,000 1,000 - 3,000 5,000 1,000 - 3,000 3,000 2,000 1,000 1,000 - 3,000 5,000 8,000 8,000

Viscosity (cP @ 25 ºC) 4,000 - 5,000 4,600 - 6,800 1,800 - 2,800 3,000 - 4,000 2,500 - 3,500 1,800 - 2,800 3,200 - 4,200 3,200 - 4,200 3,600 - 5,200 1,800 - 2,800 2,200 - 3,200 3,500 - 5,500 2,400 - 3,400 30,000 - 40,000 22,000 - 34,000 > 50,000 32,000 - 47,000 40,000 - 60,000 3,100 - 5,000 10,500 - 15,500

Hardness (Shore 00) 56 ShA 65 60 22 45 5 11 3 5 8 68 65 70 60 16 20 50 42 64 68

Shear Modulus-G' (Kpa, Rheometer) 83 8,830 78 42 100 10 17 16 13 14 119 - 208 70 114 - 205 150 100 30 58 - 126 47 230 265 Elongation 100% 300% 150% 250% 1000% 300% 300% 200% 700% 400% 130% 100% 120% 150% 400% 300% 270% 150% 100% 100% Refractive Index 1.49 1.51 1.51 1.51 1.47 1.47 1.51 1.51 1.52 1.47 1.41 1.41 1.41 1.51 1.53 1.48 1.41 1.41 1.49 1.50 Transmittance (%) (average 380-780nm) > 99 > 99 > 99 > 99 > 99 > 99 > 99 > 99 > 99 > 99 99.61 > 99 99.7 > 99 > 99 > 99 99.45 > 99 > 98 > 98 Volume Shrinkage (% ) 3.00 3.10 3.00 1.56 3.00 1.60 1.39 1.26 1.10 1.60 < 0.50 0.54 < 0.70 1.30 1.10 1.60 < 0.50 0.40 1.95 1.75

Adhesion - Glass to Glass,

100 μm (MPa) 1.1 7.6 5.0 1.2 1.6 0.7 1.0 0.9 0.7 0.6 0.3 0.4 0.5 0.9 0.8 0.5 0.4 0.7 0.9 1.2

Adhesion - Glass to Polarizer

(Nitto Denko AG 254 μm gap) (MPa) - - - - 0.86 0.20 0.37 0.33 0.29 0.27 0.17 0.59 0.23 1.00 0.76 0.75 0.21 - - -Adhesion - Glass to Polarizer

(LG Bare 254 μm gap) (MPa) - - - - 0.85 0.19 0.21 0.20 0.24 0.25 0.23 0.63 0.23 0.90 0.73 0.44 0.15 - -

-Yellowness (b*) 0.30 0.10 0.01 0.41 0.10 0.05 0.18 0.09 0.06 0.16 0.07 0.19 0.04 0.51 0.21 0.10 0.14 0.33 0.46 0.48 Haze (%) < 0.20 0.09 0.12 < 0.20 0.11 < 0.20 < 0.20 0.20 < 0.10 < 0.10 0.20 0.04 0.10 0.10 0.02 0.10 0.20 0.17 0.19 0.27 Dielectric Constant (1 MHz) 4.69 3.24 2.83 2.45 3.93 2.73 2.51 2.58 2.29 2.61 2.87 3.10 2.88 2.38 2.63 2.71 2.78 2.85 - -Ordering Information IDH Number 50 ml 1578031 1577094 1538409 1544709 1880142 1755709 1592427 1800005 1712267 1734856 1826856 1606702 1809254 1565002 1738829 1734849 1831542 1602358 1763816 1749793 1 kg 1559815 1559814 1537894 1541655 - 1536154 1591827 1800002 - 1734864 1827480 - - 1564703 1738785 1734848 1831625 1602333 - -Other - - - 1610566 (2 kg) 1880141 (2 kg) - - 1800269 (2 kg) 1701583 (2 kg) - 1827067 (2 kg) 1608213 (300 ml)1608215 (18 kg) 1809250 (300 ml) 1809511 (18 kg) - - - 1763707 (2 L) 1749795 (2 L)

1. UVV curable for all products except LOCTITE® 5192 & LOCTITE® 5192DM, while it needs to be tested according to actual conditions.

(11)

Cleaners

characteristics

cover Lens Bonding

direct Bonding

dam

temporary Bonding

LoctitE® 3192 LoctitE® 3193hS LoctitE® 3194 LoctitE® 3195 LoctitE® 3800 LoctitE® 3191 LoctitE® 3196 LoctitE® 3196pr LoctitE® 3198 LoctitE® 3199 LoctitE® 5191 LoctitE® 5192 LoctitE® 5193 LoctitE® 3195dm LoctitE® 3198dm LoctitE® 3199dm LoctitE® 5191dm LoctitE® 5192dm LoctitE® 3214 LoctitE® 3215

Chemistry Acrylic Acrylic Acrylic Acrylic Acrylic Acrylic Acrylic Acrylic Acrylic Acrylic Silicone Silicone Silicone Acrylic Acrylic Acrylic Silicone Silicone Acrylate Acrylate

Curing Method 1 UV / Heat

(80 ºC /1 hour) UV UV UV UV UV UV UV / 7389 primer UV UV UV UV / Moisture UV / Moisture UV UV UV UV UV UV UV

Full Cure Energy (mJ/cm2)

(@ 100 mW/cm2 UVA, MPMA UV Source) 4,000 3,000 2,000 3,000 2,000 1,000 3,000 3,500 2,000 1,000 1,000 - 3,000 5,000 1,000 - 3,000 3,000 2,000 1,000 1,000 - 3,000 5,000 8,000 8,000

Viscosity (cP @ 25 ºC) 4,000 - 5,000 4,600 - 6,800 1,800 - 2,800 3,000 - 4,000 2,500 - 3,500 1,800 - 2,800 3,200 - 4,200 3,200 - 4,200 3,600 - 5,200 1,800 - 2,800 2,200 - 3,200 3,500 - 5,500 2,400 - 3,400 30,000 - 40,000 22,000 - 34,000 > 50,000 32,000 - 47,000 40,000 - 60,000 3,100 - 5,000 10,500 - 15,500

Hardness (Shore 00) 56 ShA 65 60 22 45 5 11 3 5 8 68 65 70 60 16 20 50 42 64 68

Shear Modulus-G' (Kpa, Rheometer) 83 8,830 78 42 100 10 17 16 13 14 119 - 208 70 114 - 205 150 100 30 58 - 126 47 230 265 Elongation 100% 300% 150% 250% 1000% 300% 300% 200% 700% 400% 130% 100% 120% 150% 400% 300% 270% 150% 100% 100% Refractive Index 1.49 1.51 1.51 1.51 1.47 1.47 1.51 1.51 1.52 1.47 1.41 1.41 1.41 1.51 1.53 1.48 1.41 1.41 1.49 1.50 Transmittance (%) (average 380-780nm) > 99 > 99 > 99 > 99 > 99 > 99 > 99 > 99 > 99 > 99 99.61 > 99 99.7 > 99 > 99 > 99 99.45 > 99 > 98 > 98 Volume Shrinkage (% ) 3.00 3.10 3.00 1.56 3.00 1.60 1.39 1.26 1.10 1.60 < 0.50 0.54 < 0.70 1.30 1.10 1.60 < 0.50 0.40 1.95 1.75

Adhesion - Glass to Glass,

100 μm (MPa) 1.1 7.6 5.0 1.2 1.6 0.7 1.0 0.9 0.7 0.6 0.3 0.4 0.5 0.9 0.8 0.5 0.4 0.7 0.9 1.2

Adhesion - Glass to Polarizer

(Nitto Denko AG 254 μm gap) (MPa) - - - - 0.86 0.20 0.37 0.33 0.29 0.27 0.17 0.59 0.23 1.00 0.76 0.75 0.21 - - -Adhesion - Glass to Polarizer

(LG Bare 254 μm gap) (MPa) - - - - 0.85 0.19 0.21 0.20 0.24 0.25 0.23 0.63 0.23 0.90 0.73 0.44 0.15 - -

-Yellowness (b*) 0.30 0.10 0.01 0.41 0.10 0.05 0.18 0.09 0.06 0.16 0.07 0.19 0.04 0.51 0.21 0.10 0.14 0.33 0.46 0.48 Haze (%) < 0.20 0.09 0.12 < 0.20 0.11 < 0.20 < 0.20 0.20 < 0.10 < 0.10 0.20 0.04 0.10 0.10 0.02 0.10 0.20 0.17 0.19 0.27 Dielectric Constant (1 MHz) 4.69 3.24 2.83 2.45 3.93 2.73 2.51 2.58 2.29 2.61 2.87 3.10 2.88 2.38 2.63 2.71 2.78 2.85 - -Ordering Information IDH Number 50 ml 1578031 1577094 1538409 1544709 1880142 1755709 1592427 1800005 1712267 1734856 1826856 1606702 1809254 1565002 1738829 1734849 1831542 1602358 1763816 1749793 1 kg 1559815 1559814 1537894 1541655 - 1536154 1591827 1800002 - 1734864 1827480 - - 1564703 1738785 1734848 1831625 1602333 - -Other - - - 1610566 (2 kg) 1880141 (2 kg) - - 1800269 (2 kg) 1701583 (2 kg) - 1827067 (2 kg) 1608213 (300 ml)1608215 (18 kg) 1809250 (300 ml) 1809511 (18 kg) - - - 1763707 (2 L) 1749795 (2 L)

characteristics LoctitE® Sf 7190 hand wipe cleaner LoctitE® Sf 7191 fully cured cleaner

Chemical Type Hydrocarbon Limonene

Physical State Liquid Liquid

Color Colorless to light yellow Colorless to light yellow

Odor Medium solvent odor Citrus odor

Flash Point (CC) ( °C) < 5 °C 35 °C

Specific Gravity (25 °C) 0.70 - 0.80 0.92 - 0.95

Solubility in Water (kg/m3) Not soluble Can be emulsified in water

Solubility in Acetone Miscible Miscible

Evaporation Time 5 - 10 seconds < 20 minutes

ordering information

LoctitE

®

Sf 7190

1 Liter 1740959 18 Liter 1740367

LoctitE

®

Sf 7191

1 Liter 1740368 18 Liter 1740370

(12)

Henkel Process Capabilities

EASY FIELD CORPORATION

IINUMA GAUGE MANUFACTURING CO., LTD.

SHIBAURA MECHATRONICS CORPORATION

Henkel Display Centers

Henkel has invested in its own Display center and technical sites in key

locations such as China, Taiwan, Korea and Japan to offer our customers

access to rapid prototyping support and advanced product & process

development in the Display industry. These facilities have been outfitted

with state of art equipment for assembling and testing displays such as

lamination machines, curing ovens and mura detection machines. Henkel

has the ability to assemble display size up to 65” with liquid optically

clear adhesive using a wide range of lamination techniques.

Equipment Partner Operating Model

With each of our equipment partners, Henkel has purchased one or more

mass production representative laminators. The laminating equipment is

either located in a Henkel dedicated space at the partner’s facility or in a

Henkel lab. Henkel has also funded a technician from our partner’s team

to operate the equipment for Henkel. By locating the equipment in the

partner’s facility and hiring an expert from the partners team to operate the

equipment, it ensures that Henkel’s equipment has the maximum capability,

productivity and availability as well as the fastest turn around time when

custom tooling is required to create prototype parts.

As our partner improves their capability, Henkel will invest to ensure that our

equipment maintains best-in-class capabilities.

Equipment Partners

The LOCA lamination process and equipment will have a large impact on

the final quality, manufacturability and cost of the display. While Henkel

has unparalleled expertise in fluid handling and light curing equipment,

Henkel does not want to design or supply lamination equipment. To

provide best-in-class process support for our LOCA product line, Henkel

has formally partnered with the following three leading LOCA lamination

equipment manufacturers:

Henkel Display Center Henkel Technical Site Partner Site

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Small to Medium Size Lamination Equipment

As of January 2014, Henkel currently has six laminators that can laminate displays from 2 to 27” as shown in table 1. Each laminator is located

in key countries such as China, Taiwan, Japan and Korea to provide rapid prototyping support for customers.

Summary of Current Henkel Lamination Equipment

taBLE 1

capability

iinuma Kar03

iinuma vfm02

Shibaura m1-vaster

Easy field 221980-r1 iinuma Kar02

Dispense Method Point Slit coat Point array Point Point

Process Type Ambient Vacuum Vacuum Ambient Ambient

Display Size 2 - 7'' 3 - 20'' 3 - 10.4'' 2 - 27'' 4 - 15”

Location(s) Henkel (Shanghai, China)

Henkel (Rocky Hill, CT, USA) Iinuma (Chino, Japan) Henkel (Yokohama, Japan) Easy Field (Taipei, Taiwan) Henkel (Seoul, Korea)

4. Environmental cycling

a. Thermal shock chamber up

to 65 inches

b. High heat humidity chamber

up to 65 inches

c. Dry heat up to 65 inches

3. mura inspection

a. For large panels to 65 inch

b. Software controlled for part

size

c. Designed to quantify Mura

effect

d. Windows based systems

e. Can save project data for

future reference

1. Lamination machines

Lamination Machine A

Lamination from 27 to 65

inch panels

Vacuum process bonding

(up to 10 Pa)

Slit coating dispense system

Gap range from 100 to

1,000 um (before lamination)

Gap range from 100 to 600 um

(after lamination)

Overflow < 1 mm

Lamination Machine B

Lamination from 27 to 65

inch panels

Vacuum process bonding

(up to 10 Pa)

Multi-nozzle dispensing

Camera alignment to 200 um

(no markings)

2. curing oven

a. Up to 65 inch panel

b. Four curing options

375 nm LED

405 nm LED

Mercury arc

Fusion

c. Motorized conveyor

d. Curing stage height

adjustable

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Henkel Standard Equipment

fluid applicator: LOCTITE

®

Light Cure Dispensing Valve

LOCA Use:

Fluid valve for precise ON / OFF fluid control. Can be coupled with the LOCTITE® Diaphragm

Supply Pump, or any pressure reservoir

Prevents

Bubbles Positive Shut-Off Long Life High Resolution Stoke Adjustment

Fail Safe Field

Serviceable Compact Size Max Fluid Pressure Rating Air impermeable, sealed acetal copolymer valve chamber, prevents air infiltration Zero suck back design, eliminates risk of creating bubbles during shut-off Diaphragm design has no sliding seals in fluid path Allows precise adjustment of flow Spring close, air signal to open Simple rebuild

kits available Easily fits in confined spaces (78.5 mm long × 26.9 mm diameter) 4 bar Item number 98009

Syringe dispenser: LOCTITE

®

SD10 Digital Syringe Dispenser

LOCA Use:

For dispensing light cure acrylics directly from syringe barrels (no applicator valve required)

Digital Time Control Vacuum Suck-Back Modes Program Storage Cycle Counter Integration

Digital time, pressure, and vacuum display Effectively controls product dripping or stringing Manual, incremental, or timed; allows a choice of adhesive dispensing methods Stores up to 40

dispense programs Clearly displayed on the LCD screen Easily adaptable to PLC or PC based automation controls

Item number 1514629

fluid Supply: LOCTITE

®

PU10 Supply Pump System, 18 kg

LOCA Use: Pump for dispensing light and moisture cure silicone based adhesive from bladder bag (18 kg net fill)

Prevent Bubbles Low Level

Detection Pneumatically Controlled Integration Maximum Flow Rate Fluid Output Pressure Fluid Viscosity

No fluid / air contact. Unique diaphragm pump pressurizes fluid. In line disposable filter to prevent blogging of valve and needle. Bladder bag interface connector to improve changeover Low level sensorprovides output signal when adhesive level in bladder bag is low Pump start / stop initiated by customer-supplied air signals Easily adaptable to PLC or PC based automation controls 130 g/min (with 2 meter 3/8'' hose)

Maximum 7 bar Maximum 10,000 cp

System = Supply Pump + Controller + Valve Item number 961819 + 1730181

For more information please contact us at

or mail us at Loctite.equipment@henkel.com.

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full cure: LOCTITE

®

LED Flood Cure System

LOCA Use:

Curing light ideally suited for final curing on full display area

Curing

Spectrum CuringArea CuringDistance Curing Intensity

1 Edge-to-Edge

Stackable Duty Cycle

Rating

Integration Controller Advanced Internal Diagnostics

UV-A

(365 nm) 100 mm × 100 mm 25 - 75 mm 150 - 350 mW/cm² Allows use of multiple arrays to create a continuous 100 mm band of light without shadow areas 100% Easily adaptable to PLC or PC based automation controls Provides selection for digitally timed or manually controlled curing Continuously monitors LED performance and temperature, and provides digital and visual fault outputs in the rare event of a problem

UV-V

(405 nm) 50 mm 400 mW/cm²

System = Flood Array + Controller + Cable

LED Floor Array 375 nm – Item number 1167582 | LED Flood System Controller – Item number 1359255 LED Floor Array 405 nm – Item number 1167593 | LED Flood cable from array to controller – Item number 1333333

1. Curing Intensity: Industry unique design has individually reflectorized LED’s, optimally focused to deliver maximum intensity at the listed “practical” working distance.

Side cure: LOCTITE

®

LED Line Cure System

LOCA Use: Curing light ideally suited for final curing on the display edges (if edge curing is required) Curing

Spectrum Curing Area Curing Distance Curing Intensity2 Edge-to-Edge Stackable Duty Cycle

Rating

Integration Controller Advanced Internal

Diagnostics UV-A (365 nm) 5 mm × 80 mm (at 20 mm distance) 5 - 20 mm 600

mW/cm² Allows use of multiple arrays to create a continuous line of light without shadow areas 100% Easily adaptable to PLC or PC based automation control Operates 1-4 LED line arrays. Provides digitally timed or manually controlled curing Continuously monitors LED performance and temperature, and provides digital and visual fault outputs in the rare event of a problem

UV-V

(405 nm) 40 mW/cm²

System = Line Array + Controller + Cable

LED Floor Array 375 nm – Item number 1449337 | LED Line Array Controller – Item number 1447728 LED Floor Array 405 nm – Item number 1449336 | LED Line Array Cable – Item number 1483245 2. Curing Intensity: With Booster Lens: 1,300 mW/cm2

2

a

2

b

Benefits of all LoctitE

®

LEd curing Systems

Air Cooled Self contained system (no water cooling required). Instant

ON / OFF Requires no warm-up time. Allows turning off between cure cycles, reducing energy costs.

Long Life Up to 10 times vs. traditional arc-lamps.

Cold Light Light output has no Infra-Red (IR) content, minimizing part heating and warping. 100% Usable

Output Unlike traditional arc-lamps, 100% of light output is within the adhesive’s curing spectrum.

pre cure: CL10 LED Spot Cure System

LOCA Use:

Curing light ideally suited for spot tacking on selected display area, creating fixture strength prior to transporting to final cure

Curing

Spectrum Spot Diameter LED Heads Curing Distance Intensity Cable

UV-A (365 nm) Available in 3, 6, 10 mm diameter 8 - 25 mm 400 - 4,200 mW/cm2 2.7, 5 M cable UV-V (405 nm) Available in 6 mm diameter 8 - 10 mm 2,000 mW/cm2 2.7 M cable System = LED Head + Controller

365 nm 6 mm LED Head, 2.7M Cable – Item number 1538499

405 nm 6 mm LED Head, 2.7M Cable – Item number 1746633 Quad Controller – Item number 1514634 For the different sizes of LED Head and Cable, visit http://equipment.loctite.com

1

1

2

a

2

b

Pre-cure Full cure Side cure

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Henkel Display Center

306 Libing Road

Zhangjiang High-Tech Park

Pudong New District

Shanghai 201203, P.R.China

Tel: +86 21 5138 9616

Henkel Korea Technical

Center

B-18th floor, BYC High City

Bldg., Gasan Digital 1-ro,

Geumcheon-gu, Seoul,

153-718, Korea

Tel: +82 2 6150 3000

Henkel Asia-Pacific &

China Headquarters

No. 928 Zhangheng Road

Zhangjiang High-Tech Park

Pudong New District

Shanghai 201203, P.R. China

Tel: +86 21 2891 8000

Fax: +86 21 2891 8971

Henkel Adhesives

Technologies India Pvt. Ltd.

11/F Kesar Solitaire Plot No. 5

Sector 19 Palm Beach Road

Sanpada, Navi Mumbai

Maharashtra 400 705, India

Tel: +91 22 3929 6600

Fax: +91 22 3929 6602

Henkel Japan Ltd.

27-7 Shin Isogo-cho

Isogo-ku, Yokohama-shi

Kanagawa 235-0017, Japan

Tel: +81 45 758 1800

Fax: +81 45 758 1851

Henkel Korea Ltd.

8/F, Henkel Tower

418 Mapo-dong, Mapo-gu

Seoul 121-734, South Korea

Tel: +82 2 3279 1700

Fax: +82 2 3273 4663

Henkel (Malaysia) Sdn. Bhd.

46/F, Menara Telekom

Jalan Pantai Bahru

Kuala Lumpur 59200

Malaysia

Tel: +60 3 2246 1000

Fax: +60 3 2246 1188

Henkel Singapore Pte Ltd.

#03-01/02

Haw Par Technocentre

401 Commonwealth Drive

Singapore 149598

Tel: +65 6266 0100

Fax: +65 6266 1161

Henkel Taiwan Ltd.

10/F, 866 Zhongzheng Road

Zhonghe District

New Taipei City 235, Taiwan

Tel: +886 2 2227 1988

Fax: +886 2 2226 8699

Henkel (Thailand) Ltd.

35/F, Centralworld Tower

999/9 Rama 1 Road

Khwaeng Pathumwan

Khet Pathumwan

Bangkok 10330, Thailand

Tel: +66 2 209 8000

Fax: +66 2 209 8008

Henkel Corporation

One Henkel Way

Rocky Hill, CT 06067

United States

Tel: +1 800 571 5100

Fax: +1 860 571 5465

Henkel Canada Corporation

2225 Meadowpine Blvd.

Mississauga, Ontario L5n 7P2

Canada

Tel: +1 905 814 6511

Fax: +1 905 814 5391

Henkel AG & Co. KGaA

(Headquarters)

Henkelstraße 67

40191 Düsseldorf

Germany

Tel: +49 211 797 0

Fax: +49 211 798 4008

® Except as otherwise noted, all marks used above in this brochure/leaflet, report/data sheet etc. are trademarks and/or registered trademarks of Henkel and/or its affiliates in the US and elsewhere.

EFC is a registered trademark of Easy Field Corporation. ING is a registered trademark of Iinuma Gauge Manufacturing Co., Ltd.

Shibaura is a registered trademark of Shibaura Mechatronics Corporation.

© Copyright 2014. Henkel Corporation. All rights reserved. APH-AG-009 (03/2014)

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