-
客戶料號 96TS-1044WR-M01Customer P/N
鹽 光 股 份 有 限 公 司
承 認 書
Approval Sheet
SALT INTERNATIONAL CORP.
客戶名稱
Customer品名
Description
9553A
研華股份有限公司
AMT 10.44" #9553A Touch Screen
Dec-08, 2010日期Date供應商料號
Supplier P/N
Salt International Corp. 7F-1, No. 92, Bao-Jhong Road, Shin-Dian
City, Taipei 231, Taiwan. R.O.C
Tel: +886 2 2914-6684 Fax: +886 2 2911-5345 Web:
www.salt.com.tw
-
Item1
2
3
4
5
6
Index
Content#9553A Mechanical Drawing / Picture
AMT Product Standard for #9553A
AMT Touch Screen Integration Guide
( please refer to attachment for detail )
RoHS_ PFOS_PFOA_Halogen Free Certification Document for
#9553A
REACH Certification Document for #9553A
AMT Touch Screen Optical Quality Standard for AMT #9553AA001-2
Rev. P
( SGS Document: CR_2009_30433 )( please refer to attachment for
detail )
( SGS Document: CE_2009_36644 )
Salt International Corp. 7F-1, No. 92, Bao-Jhong Road, Shin-Dian
City, Taipei 231, Taiwan. R.O.C
Tel: +886 2 2914-6684 Fax: +886 2 2911-5345 Web:
www.salt.com.tw
-
Apex Material Technology Corp. 創為精密材料股份有限公司
AMT PRODUCT STANDARD
Doc No: AS-09553-A2 Doc Rev:2.0 Released: Feb. 27, 2009
Title:
SPECIFICATIONS OF ANALOG RESISTIVE TOUCH SCREEN Model Name: 9553
Rev: A Size: 10.44” Page.1 of 7
Analog Touch Screen Specification Manufacturer: Apex Material
Technology Corp. Model Name: 9553 Rev: A 1. Mechanical Dimensions
and Construction
1.1 General: Analog Resistive touch screen is laminated by ITO
film to ITO glass. 1.2 Mechanical Performance:
1.2.1 Surface hardness: 3H 1.2.2 ITO Glass Thickness: 1.10mm
1.2.3 Tail Type: FPC 1.2.4 Surface Finish Type: Anti-glare
1.3 Input Method and Activation Force Input Method Average
Activation Force 1.6mm dia. Delrin stylus 0.10~0.70N 16mm dia.
Silicon "finger" 0.10~0.80N
Touch screen side view:
Remarks: This Model is with Anti-Newton Ring design.
-
Apex Material Technology Corp. 創為精密材料股份有限公司
AMT PRODUCT STANDARD
Doc No: AS-09553-A2 Doc Rev:2.0 Released: Feb. 27, 2009
Title:
SPECIFICATIONS OF ANALOG RESISTIVE TOUCH SCREEN Model Name: 9553
Rev: A Size: 10.44” Page.2 of 7
2. Typical Optical Characteristics 2.1 Visible Light
Transmission: 82± 3% 2.2 Haze: 9.5± 2.5% 3. Electrical
Specifications
3.1 Operating Voltage: 5.5V or less 3.2 Contact current: 30mA
(maximum) 3.3 Circuit close resistance: X : 300~1100Ω
Y : 200~700Ω 3.4 Circuit open resistance: > 10MΩ at 25VDC 3.5
Contact bounce: < 10ms 3.6 Linear Test :
-
Apex Material Technology Corp. 創為精密材料股份有限公司
AMT PRODUCT STANDARD
Doc No: AS-09553-A2 Doc Rev:2.0 Released: Feb. 27, 2009
Title:
SPECIFICATIONS OF ANALOG RESISTIVE TOUCH SCREEN Model Name: 9553
Rev: A Size: 10.44” Page.3 of 7
5V
5V
Vx
Vy
Theoretical Value Measurement Value
X axis
Y axis
Fig. 4-2
X axis
Y axis
Fig. 4-1
D d
Vout
0
V Vin
ΔV
Error voltage=∣ΔV∣/ ( Vin-Vout ) Max. error voltage=∣ΔVmax∣/ (
Vin-Vout )
Distance
Fig. 4-3
-
Apex Material Technology Corp. 創為精密材料股份有限公司
AMT PRODUCT STANDARD
Doc No: AS-09553-A2 Doc Rev:2.0 Released: Feb. 27, 2009
Title:
SPECIFICATIONS OF ANALOG RESISTIVE TOUCH SCREEN Model Name: 9553
Rev: A Size: 10.44” Page.4 of 7
5. Environmental Specifications
5.1 Operating Temperature: -20° C ~ + 70° C If temperature over
60℃, minimum 24 hours operating confirmed.
5.2 Storage Temperature: -40° C ~ + 80° C 5.3 Humidity: if temp.
20° C,≧ see Fig.5 below
if temp. < 20° C, humidity less than 90% RH No dew
condensation
Storage and Operating Temperature with Humidity Conditions
0
20
40
60
80
100
20 30 40 50 60 70 80
Temperature(℃)
Hum
idit
y(%
)
0
20
40
60
80
100
StorageOperating
Fig.5 Storage and Operating Temperature with Humidity
Conditions
6. Reliability Test
6.1 Exposure to high temperature Touch panel is put into a test
machine at the condition of 80 for ℃ 288hours. Then it is left at
the room temperature for 24 hours or more. The measurement must
satisfy the following:
- Circuit close resistance: as Sec. 3.3 - Circuit open
resistance: as Sec. 3.4 - Contact bounce: as Sec. 3.5 - Linearity
test: as Sec. 3.6
-
Apex Material Technology Corp. 創為精密材料股份有限公司
AMT PRODUCT STANDARD
Doc No: AS-09553-A2 Doc Rev:2.0 Released: Feb. 27, 2009
Title:
SPECIFICATIONS OF ANALOG RESISTIVE TOUCH SCREEN Model Name: 9553
Rev: A Size: 10.44” Page.5 of 7
6.2 Exposure to low temperature
Touch panel is put into a test machine at the condition of -40
for ℃ 288 hours. Then it is left at the room temperature for 24
hours or more. The measurement must satisfy the following:
- Circuit close resistance: as Sec. 3.3 - Circuit open
resistance: as Sec. 3.4 - Contact bounce: as Sec. 3.5 - Linearity
test: as Sec. 3.6
6.3 Exposure to constant temperature and humidity Touch panel is
put into a test machine at the condition of 50 ,℃ 80%RH for 288
hours. Then it is left at the room temperature for 24 hours or
more. The measurement must satisfy the following:
- Circuit close resistance: as Sec. 3.3 - Circuit open
resistance: as Sec. 3.4 - Contact bounce: as Sec. 3.5 - Linearity
test: as Sec. 3.6
6.4 Thermal Shock Touch panel is put into a test machine at the
condition of -40 for 30 minutes, ℃and then 80 for 30 minutes. The
process is repeated by 10 cycles. Then it is ℃left at the room
temperature for 24 hours or more. The measurement must satisfy the
following:
- Circuit close resistance: as Sec. 3.3 - Circuit open
resistance: as Sec. 3.4 - Contact bounce: as Sec. 3.5 - Linearity
test: as Sec. 3.6
7. Durability test:
7.1 Finger touches Touch panel is hit 10 millions times with a
silicone rubber of R8 finger(see Fig.7-1), hitting rate is by 250g
at 2 times per second. The measurement must satisfy the
following:
-
Apex Material Technology Corp. 創為精密材料股份有限公司
AMT PRODUCT STANDARD
Doc No: AS-09553-A2 Doc Rev:2.0 Released: Feb. 27, 2009
Title:
SPECIFICATIONS OF ANALOG RESISTIVE TOUCH SCREEN Model Name: 9553
Rev: A Size: 10.44” Page.6 of 7
- Circuit close resistance: as Sec. 3.3 - Circuit open
resistance: as Sec. 3.4 - Contact bounce: as Sec. 3.5 -Linearity
test: as Sec. 3.6
7.2 Stylus writing
Touch panel is drawn by R0.8 Derlin stylus pen, at 250g forces,
repeat one inch by 200K times(see Fig.7-2). The measurement must
satisfy the following:
- Circuit close resistance: as Sec. 3.3 - Circuit open
resistance: as Sec. 3.4 - Contact bounce: as Sec. 3.5 - Linearity
test: as Sec. 3.6
Touch Panel
Stylus Pen (R=0.8mm)
Touch Panel
Fig. 7-1
Fig. 7-2
Silicone Rubber (R=8.0mm)
-
Apex Material Technology Corp. 創為精密材料股份有限公司
AMT PRODUCT STANDARD
Doc No: AS-09553-A2 Doc Rev:2.0 Released: Feb. 27, 2009
Title:
SPECIFICATIONS OF ANALOG RESISTIVE TOUCH SCREEN Model Name: 9553
Rev: A Size: 10.44” Page.7 of 7
8. Optical Performance 8.1 Optical inspection method and optical
defect standards refer to AMT
document A001 updated version ;〝Touch Screen Optical Quality
Standard.〞 8.2 Outside to Viewing Area: any optical defects in this
area need to be ignored if
no touch screen function is affected.
9. Others 9.1 Always store the touch screen in its original
shipping container under normal
conditions (Temperature 20~25 ; Humidity 65%RH).℃ ≦ 9.2 This
Model is RoHS compliant.
-
AMT Touch Screen Integration Guide
Apex Material Technology Corp. V1.5
-
Copyright
Disclaimer
The information in this document is subject to change without
notice. The manufacturer makes no representations or warranties
regarding the contents of this manual and specifically disclaims
any implied warranties of merchantability or fitness for any
particular purpose. Furthermore, the manufacturer reserves the
right to revise this publication or make changes in the
specifications of the product described within it at any time
without notice and without obligation to notify any person of such
revision.
Trademarks
AMT is a registered trademark of Apex Material Technology Corp.
Microsoft and Windows are registered trademarks of Microsoft Corp.
Other product names used in this manual are the properties of their
respective owners and are acknowledged.
Copyright
This publication, including all photographs, illustrations and
software, is protected under international copyright laws, with all
rights reserved. Neither this manual, nor any of the material
contained herein, may be reproduced without the express written
consent of the manufacturer. ©Copyright 2008
-
Table of Contents Page
Introduction I Chapter 1 Touch Screen Storage, Packing And
Unpacking………….…. 1 1.1 Storing the Touch Screen……………………………...……..….
1 1.2 Unpacking the Carton and Inner Box…………………………….. 2 1.2.1 Plank
Type Inner Box……………………………………..…..... 2 1.2.2 Block Type Inner
Box………………………………...…..…….. 4 1.2.3 Slot Type Inner
Box…………………………………...…..……. 6 1.3 Stacking the Inner
Box………………………………………………… 7 1.4 EPE Slot Type…………………………………………………………
8
Chapter 2 How to Handle Touch Screen………………………………..…… 11 Chapter
3 Installing AMT Touch Screens………………………..……….…... 14 3.1
Pre-Installation Guide……………………………….…….………… 14 3.1.1 Touch Screen
Drawing ………………………………….…….... 14 3.1.2 LCD Display
Drawing……………………………………….…… 15 3.1.3 Dimensional Measurements of
Touch Screen and LCD Panel... 16
3.2 Installing Touch Screen…………………………………………….. 17 3.2.1 Front
Gasket…………………………………………………….. 17 3.2.2 Bending, Routing and
Connecting the Touch Screen Tail…... 18 3.2.3 Non-Input and
Critical Area ………………………………………...19 3.2.4 Preventing Touch Screen
Distortions……………………….… 20
3.3 Mounting Methods………………………………………...…….. 21 3.3.1 Front
Mounting Design…………………………………………. 21 3.3.2 Rear Mounting
Design………………………………………….. 23 3.3.3 Sandwich Mounting
Design……………………...……………. 27
3.4 Protective Film……………………………………………………….. 28 Chapter 4 Low
Reflective Touch Screen……………………………………… 29
4.1 Absorption Axis Angle……………………………………………… 29 4.2 Linear
Polarizer Touch screen……………………………………... 29 4.3 Circular Polarizer
Touch screen……………………………………. 29 4.4 Handling………………………………………………………………
29 4.5 Installation Recommendation………….…………………………… 30 4.6 Care and
Cleaning…………………………………………………... 30 4.7
Others………………………………………………………………… 31
-
Table of Contents Page
Chapter 5 Capacitive Touch Screen……………………………………..………..32 5.1
Front Bezel and Housing……………………………………………… 32 5.2 Sealing
Gasket………………………………………………...………... 32 5.3 Mounting
Tape………………………………………..…………………. 33 5.4 Tail
Routing……………………………………………………………… 33
Chapter 6 Touch Screen Care and Cleaning …………………………….… 34
Chapter 7 AMT Contact Information……………………………………….… 35 Appendix I
How to handle AMT touch screen…………………………………... 36
-
Table of Illustrations Page
Chapter 1 Touch Screen Storage, Packing and Unpacking Figure 1
Carton Instructions……………..…………………………………….. 1 Figure 2 AMT Logo on
top of Box ……….………..…………………….…….. 2 Figure 3 Packing tapes
removal…………………….……………….………… 2 Figure 4 Incision not to exceed 1 cm
………………….…………….……….. 3 Figure 5 Do not pull
tail……..………………………………………….………. 3 Figure 6 Unpacking large size touch
screen……………………..….………. 3 Figure 7 AMT Logo on top side of box …
……………………………..…….. 4 Figure 8 Incision not to exceed 1 cm
……………………….………….……… 4 Figure 9 Do not remove touch screen by the
tail……..……………….…….. 5 Figure 10 Remove by the rim of the touch
screen……… …………….……… 5 Figure 11 AMT Logo on top side of box
……………………………….……….. 6
Figure 12 Incision not to exceed 3mm ………………………………..……….. 6
Figure 13 Do not remove touch screen by the tail ….…………….………….. 6
Figure 14 Remove by the rim of the touch screen ……..………….………….
7
Chapter 2 How to Handle Touch Screen Figure 15 Do not pull the
tail………………………………………….…………. 11 Figure 16 Do not crease the
tail………………………………………………… 11 Figure 17 Stay away from heavy
objects…………………………….…………. 12 Figure 18 Incorrect stacking of touch
screens……………………….………… 12 Figure 19 Correct stacking of touch
panels………..……………….…………. 12 Figure 20 Connecting ZIF type
Connector……………………………………… 13
Chapter 3 Installing AMT touch Screens Figure 21 Touch Screen
Drawing……………………………….………………. 14 Figure 22 LCD Display
Drawing………………………………….…….……….. 15 Figure 23 Matching touch screen to
LCD panel……….……….………..……. 16 Figure 24 Typical Integration
Methods………………………….…………..….. 17 Figure 25 Front Gasket
alignment……………………………….………..……. 17 Figure 26 Do not crease the
tail…………………….………………………...… 18 Figure 27 Avoid bending the
tail…………………………….……………..…… 18
Figure 28 The bend radius specification of each type of
tail………………..…… 18 Figure 29 Avoid sharp edges contact with
tail………………….………..……… 19
Figure 30 Avoid damage at Non-input & Critical
area………….……………..…… 19 Figure 31 Gaskets Preventing touch screen
Distortion ……………………..…… 20
Figure 32 Preventing touch screen Distortion………………….…………..…. 20
Figure 33 Touch screen integration side view…………………….…………... 21
-
Table of Illustrations Page
Figure 34 Embossed graphic overlay ………………………………………..… 21
Figure 35 No silicon glue allowed ……………….………………..……..…….. 22
Figure 36 Touch screen with graphic overlay…………………………………. 23
Figure 37 Gaskets as protection ……………………………………………….. 24 Figure
38 Designing a rib……………………..………………………………… 24 Figure 39 High
possibly of breakage at pressure point……………………… 24 Figure 40
Sandwich design…………………………………………………….. 27 Figure 41 O-ring
design…………………………………………………………. 27 Figure 42 No strong adhesive
protective film……………………….………… 28 Figure 43 Correct type of
protection film ……………………………………… 28
Figure 44 Typical Integration method of Capacitive touch
screen………… 32
-
Introduction AMT Touch Screens AMT touch screens meet a wide
range of specialized applications from low reflection touch screens
to high light transmission touch screen for enhanced optical
clarity and to our patented 5-wire resistive touch screen with
enhanced linearity. The new 5-wire touch screen technology is
available from 5” to 21”. The 4-wire / 8-wire resistive touch
screens are the most popular and widely used touch input devices
worldwide, and are most cost effective and easy to use. AMT
provides you with over 50 numbers of standard parts of touch
screens with sizes ranging from 3.6” to 19” to meet your
requirement. To complement and complete our touch solutions, AMT
provides you with the high performance PenMount control boards and
its in-house developed divers and value-added software. Here we
would like to offer you an introduction to AMT’s touch screen
packaging types and methods and share with you information on how
to properly handle the touch screens from your receipt of the goods
to your installation to your application systems. In this document,
you will also find a guide to the proper cleaning and maintenance
of the touch screen. It has always been AMT’s mission to provide
quality goods and services, from pre-production to finish goods for
integration and during & after integration at your end. We
hope, with this guide, we are able to extend our assistance to your
achievement of a smooth integration process.
-
Apex Mater ia l Technology Corp . 1
AMT Touch Screen Integration Guide
CHAPTER 1: Touch Screen Storage, Packing and Unpacking
1.1 Storing the Touch Screen Ideal storage environment is
between temperature of 20oC ~ 25oC with humidity less than 65%RH.
For long term storage, goods must be kept in original carton
packaging or be kept in its inner box and with the inner box
covered with plastic bag. Take careful note of the following icons
printed on the cartons.
Fig. 1 Carton Instructions
Follow the instructions as represented by the icons printed on
the cartons - “Maximum 4 pcs. per stack pile” - “Keep Dry” - “This
Side Up” - “Fragile”: handle with care.
There is a double carton, which is supported by 8 numbers of
corner shock absorbers inside the external carton. The inner box is
then packed into and protected by the smaller carton.
During long-term storage of touch screens packed inside external
cartons, it is advisable to stack them up to 4 cartons.
-
Apex Mater ia l Technology Corp . 2
AMT Touch Screen Integration Guide
1.2 Unpacking the Carton with Inner Box AMT provides three types
of inner box: Plank type Block type Slot type
We use different types of inner box for packing different sizes
of touch screens. Before starting the unpacking process, you are
required to wear gloves to prevent fingerprints or stains occurring
on the touch screens.
1.2.1 PPllaannkk TTyyppee IInnnneerr BBoox Plank type inner box
is commonly used for large touch screens with diagonal size larger
than 12.1”. Please follow the photos shown below on the proper
procedures of unpacking a plank-type inner box. Always wear gloves
when handling touch screens.
a. The correct unpacking position is: the top side is the side
with the AMT Logo. See Fig. 2
Fig. 2 Top side with AMT Logo
b. Remove transparent packing tapes from all sides of the top
covering. See Fig. 3
Fig. 3 Remove packing tapes from all sides
-
Apex Mater ia l Technology Corp . 3
AMT Touch Screen Integration Guide
c. When cutting the transparent packing tapes, do not exceed 1
cm into the box. See Fig. 4 below.
Fig. 4 Do not exceed more than 1cm
d. Do not remove touch screen by the tail. See Fig. 5
Fig. 5 Do not pull the tail
e. Remove touch screen with care by the rims of the glass. See
Fig. 6 for proper way to remove the touch screen.
Fig. 6 Proper way to remove large size touch screen
-
Apex Mater ia l Technology Corp . 4
AMT Touch Screen Integration Guide
11..22..22 BBlloocckk TTyyppee IInnnneerr BBooxx
Block type inner box is made of plastic materials. This is our
preferred packaging design for medium size touch screens with
diagonal size less than 10.4”. Always wear gloves when handling
touch screens.
a. The Correct unpacking position is: Top side of the box is
with AMT Logo.
See Fig. 7
Fig. 7 Top side with AMT Logo
b. Hold the cutter vertically when cutting the transparent
packing tapes and do not exceed 1 cm into the box. See Fig. 8
Fig. 8 Do not to exceed more than 1cm into the box
-
Apex Mater ia l Technology Corp . 5
AMT Touch Screen Integration Guide
b. Do not remove touch screen by the tail. See Fig. 9
Fig. 9 Do not remove the touch screen by the tail
c. Remove with care by the rims of the glass. See Fig. 10 for
proper way to remove the touch screen from Block type inner
box.
Fig. 10 Remove with care by the rim of the glass
-
Apex Mater ia l Technology Corp . 6
AMT Touch Screen Integration Guide
11..22..33 SSlloott TTyyppee IInnnneerr BBooxx
Slot type inner box is made of plastic materials and are
designed with slots inside the box to hold the touch screen
vertically. This is the packaging design for smaller size touch
screen with diagonal size less than 5.8”. In this type of packing
there is no protective film on the rear of the touch screen. Always
wear gloves when handling touch screens.
a. Correct unpacking position is; Top side of box is with AMT
Logo. See Fig. 11
b. Slit open the flap opening. When cutting the transparent
tape, do not exceed 3mm into the flap opening. See Fig. 12
c. Do not remove touch screen by the tail. See Fig. 13
Fig. 13 Do not remove touch screen by the tail
Fig. 12 Do not exceed more than 3mm into
the box
Fig. 11 Top side with AMT Logo
-
Apex Mater ia l Technology Corp . 7
AMT Touch Screen Integration Guide
e. Remove with care by the rims of the glass. See Fig. 14 for
the correct way to carry out the touch screen from the Slot-type
inner box
Fig. 14 Remove with care by the rim of the glass
1.3 Stacking the Inner Box
We suggest maximum 5 boxes per stack pile and must not
compromise on the stability of the boxes at the top of the pile.
For the Plank type and Block type inner box, we are to stack the
boxes with the AMT logo facing upwards. However when we are
stacking the Slot type inner box, it must be stack horizontally
with AMT logo on the sides.
-
Apex Mater ia l Technology Corp . 8
AMT Touch Screen Integration Guide
1.4 EPE Slot Type
The EPE type packages are design with slots to hold the touch
screens vertically inside the box. This is the packaging design for
large size touch screens and this design reduces environment impact
and optimizes transportation cost management. There is also minimal
use of non-dissolvable materials to help in recycling. The package
mainly consists of EPE material which is suitable for use in clean
room production therefore saving time and increases productivity.
Always wear gloves when handling touch screens. Below are
instructions for removal of touch screen from box.
1
AMT new package design。
2
Use either cutter or scissors to cut the PP strapping tape on
the box。 Attention:Do not extend the cutter more than 1 ~ 2 cm to
avoid damaging
the box。
3
Cut along the box joint to open up the sealing of the adhesive
tape。 Attention: Do not insert the cutter more than 0.5 cm into the
box to avoid
damaging the contents in the box。
4
Takes out the partition board in the box。
5
Tear away the adhesive tape on the plastic bag。
-
Apex Mater ia l Technology Corp . 9
AMT Touch Screen Integration Guide
6
Use both hands to remove the touch screens。
Attention: The overall packing consists of different product
sizes and there
will be difference in the weight. Take care of your posture to
avoid injury
when carrying 17” touch screens and above。
7
Place the touch screens on the work bench then
cut the PP strapping tape with scissors。
8
Removes the EPE slot holder from the touch
screens as shown in the picture。
9
Removes the first piece of protective PP
corrugated board。
10
Removes the touch screens from the EPE slot
holder using vertical upward direction。
Attention: Remove the touch screen from the outside towards the
centre.
Select from the front outside and alternative remove from the
back outside
moving towards the centre. This action is to prevent the EPE
slot holder
from falling due to unbalance weigh distribution.
11
Place the touch screen on flat surface and grip
the FPC tail to pull upwards。
12
Grips the green or the blue color tagged adhesive tape, pulls up
to remove the protective
film。
-
Apex Mater ia l Technology Corp . 10
AMT Touch Screen Integration Guide
Below are instructions for returning the touch screens back into
the box.
1
Insert touch screens and the PP corrugated
board into the EPE slot holder。
2
Place the EPE slot holder at the side and insert
the touch screen one by one into the slot。
3
Bandage PP strapping tape to the entire product。
4
Both hands holding on the PP strapping tape, place the touch
screens into the plastic bag in the
box。
5
Seal the mouth of the plastic bag with adhesive
tape。
6
Put back the partition board in the box。
7
Cover back the box and seal the opening with
adhesive tape。
-
Apex Mater ia l Technology Corp . 11
AMT Touch Screen Integration Guide
CHAPTER 2: HOW TO HANDLE TOUCH SCREEN
After open the inner box of the touch screen, handle the touch
screen properly, if the touch screen is large in size, we will
suggest using two hands to take out the touch screen from the inner
box. See the above three pictures, Fig. 6, Fig. 10 and Fig. 14
NNoonn--PPrrooppeerr WWaayyss ttoo hhaannddllee tthhee
ttoouucchh ssccrreeeenn 1. For proper handling of touch screens,
wear gloves at all times to prevent cuts to
yourself as the edges of the touch screen may be sharp. 2. Do
not pull or crease the tail of the touch screen. See Fig. 15 and
Fig. 16.
Fig. 15: Do not pull the tail
Fig 16: Do not crease the tail
3. Do not place any objects on top of the Touch Screen. 4. Place
touch screen on flat clean empty surface. 5. Ensure the touch
screen does not come in collision with any heavy object. See Fig.
17,
The touch screen surface hardness is only 3H.
-
Apex Mater ia l Technology Corp . 12
AMT Touch Screen Integration Guide
Fig. 17 No collisions with heavy object
6. Do not use sharp objects on the surface of the touch screen.
7. Do not stack touch screens on top of each other without placing
buffer protection
between them. See Fig. 18 for the wrong placing way without
protection material for each touch screen. And Fig. 19 is the
correct way to use a buffer material between two touch screens.
Fig. 18 Do not stack the touch screen on top of each other
Fig. 19 Place buffer between touch screens
8. Clean touch panel surface with soft cloth moistened with
alcohol only. Do not use any
other solvent solutions.
-
Apex Mater ia l Technology Corp . 13
AMT Touch Screen Integration Guide
9. When connecting ZIF type connector, ensure handling with care
to prevent
compressions of the tail. Hold the stiffener part of the tail to
prevent creasing the tail. See Fig. 20 the wrong way to hold the
touch screen tail side without holding the stiffener, pushing force
can easily bend the tail.
Fig 20 Handle with Care when connecting ZIF type connector
-
Apex Mater ia l Technology Corp . 14
AMT Touch Screen Integration Guide
CHAPTER 3: Installing AMT Touch Screens
This guide shows how to correctly integrate AMT touch screen
into your system. Correct integration is vital for the function
performance of your touch system. We will discuss the various
methods of mounting the touch screen to the front bezel, to the LCD
module and with a graphic overlay. Before we proceed with the
integration guide, we will introduce the meaning of the different
dimensions in the touch screen and the LCD display unit.
3.1 Pre-installation Guide
3.1.1 Touch Screen The different dimensions of the touch screen
are shown below in Fig. 21.
Fig. 21 Touch Screen Drawing
Outside Dimension: the overall external size of the touch screen
is usually the glass substrate
of the touch screen. The overall size tolerance is specified and
shown in the drawing of the touch screen..
View Area: this dimension is for the mechanical engineer to
design the size of the front bezel opening for the display.
-
Apex Mater ia l Technology Corp . 15
AMT Touch Screen Integration Guide
Active Area: this is the touch screen function area. Tail: is
the touch screen circuit connecting line, there are 4-pin, 5-pin
and 8-pin variations. Touch Screen Surface: the top side of the
touch screen is the touch function side; the
material is a film; the surface of this film could be antiglare,
clear or glare hardcoat surface. The touch screen surface should be
facing outward.
3.1.2 LCD Display module: We will explain the usage of the
different dimensions shown in Fig. 22 below.
Fig. 22 LCD Display Drawing
Outside Dimension: the overall external size of the LCD module
which is the metal casing that houses the LCD panel and the
PCB.
Bezel Opening: or known also as Opening Area. This is the LCD
metal frame opening area; this metal frame has to be fully covered
off by the system front bezel.
Active Area: is the display area of the LCD module. The touch
screen active area should match this LCD active area.
-
Apex Mater ia l Technology Corp . 16
AMT Touch Screen Integration Guide
3.1.3 Dimensional Measurements of Touch Screen and LCD Panel The
touch screen view area should match with the LCD bezel opening
area, and the active area of touch screen should match with the LCD
active area. When aligning touch screen to the LCD display, or
designing a new front bezel, make sure the touch screen silver bus
line is fully covered off by the system front bezel. The touch
screen view area is not allowed to be touched or come into contact
with the front bezel of the system. Please refer to Fig. 23 below
for further reference.
Fig. 23 Matching Touch Screen to LCD Panel
-
Apex Mater ia l Technology Corp . 17
AMT Touch Screen Integration Guide
3.2 Installing Touch Screen The following illustration (Fig. 24)
shows a typical integration method of our touch screen to your LCD
display or system. We suggest that the front bezel edge fall close
to active area of the touch screen. The bezel must not touch the
view area of the touch screen; recommend utilizing gasket to create
a gap. The front gasket opening must be larger than the Adhesive
Opening, thus to prevent accidental pressing on touch screen. The
gasket material should be a elastic material e.g. PORON. This would
not be applicable if overlay foil is used.
Fig. 24 Typical Integration Method
3.2.1. Front Gasket The front gasket provides buffer to the
touch screen when it is being squeezed tight to the front bezel; a
single-side adhesive front gasket is recommended, do not use very
high bond double-sided tape (VHB type adhesive). It is suggested
that the front gasket be bonded to the touch screen perimeter.
Please ensure that the view area of the touch screen are not
enclosed / encased by the front gasket.
The gasket expands when compressed thus make sure it does not
overlap into the viewing area of the touch screen. Compression
force around the perimeter of the touch screen should be even. It
must also be ensured that the front bezel itself does not come into
contact with the view area of the touch screen. The thickness of
the gasket is suggested to be less than 1.0 mm, except for special
considerations or designs. See Fig. 25.
Fig. 25 Front Gasket Alignment
We suggest that the bezel edge not to come in contact with the
view area to avoid disruptive contact with the function of the
touch screens.
-
Apex Mater ia l Technology Corp . 18
AMT Touch Screen Integration Guide
3.2.2. Bending, Routing and Connecting the Touch Screen Tail
When connecting the touch screen tail to the connector, make sure
to hold the housing of the tail. If the tail is designed to be ZIF
type, there is a stiffener that is at the end of the tail
terminator, hold the stiffener area and insert the ZIF type tail to
the ZIF connector.
The following conditions are to be avoided when folding or
inserting the touch screen tail into the LCD display module. a. Do
not crease the tail as this can damage the conducting lines of the
tail. See Fig. 26
Fig.26 Do not crease the tail
b. There must be no multiple bending or twisting of the tail.
See Fig. 27
Fig. 27 Do not bend the tail
c. It is important to position the touch screen tail in such a
way that its bent radius is greater than the tail specified bend
radius. The minimum bend radius specification of each type of tail
is as follows:
Fig.28 The bend radius specification of each type of tail
-
Apex Mater ia l Technology Corp . 19
AMT Touch Screen Integration Guide
d. Avoid pulling the tail and bending the tail to minimize the
risks of creating upward
stress from tail to touch screen. The tail should not pull, push
or put any tension on the top sheet of the touch screen and it
should not move freely after assembly.
e. Do not cut the tail. Check the tail route to ensure there are
no sharp edges that comes in contact with the tail. The sharp edges
can cut the tail’s protective film after a period of time due to
vibration or transportation. This effect can cause the touch screen
to open circuit.
Fig. 29 Avoid sharp edges comes in contact with Tail
f. Never route the touch screen tail around unshielded high
voltage like the inverter or
power transformer. g. Ensure that the tail’s contact with the
connector will not be loosened by vibration. h. Avoid bending at
the PTH location of the tail.
3.2.3. Non-Input and Critical Area
An area along the boundary of active area is defined as
Non-Input area in the Approved Drawing, must be protected from any
force. The Critical Area should be free from using excess force
especially with stylus input. Otherwise, will occur "non-linearity"
issue.
Fig. 30 Avoid damage at Non-Input and Critical Area
-
Apex Mater ia l Technology Corp . 20
AMT Touch Screen Integration Guide
3.2.4. Preventing Touch Screen Distortions AMT recommends
mounting the touch screen to the LCD first. Do not use high
adhesion of adhesive on the front surface of the touch screen. This
recommendation will help to prevent distortion and pillowing that
may develop due to ITO top film expansion in response to changes in
temperature. When applying force to the touch screen perimeter, we
must ensure it is uniform and evenly applied. If a gasket is used
between the bezel and top ITO PET, it must be able to absorb
expansion differences between the two surfaces. If the gasket is
overly compressed, distortion may occur. The gasket must be
positioned over the border.
Fig. 31 Gaskets to Prevent Touch Screen Distortion
The force from the front bezel to the touch screen surface, if
unequal, can cause the touch screen to have pillowing effect. In
order to avoid this, it is necessary to ensure the average force
from the front bezel to touch screen surface is spread evenly
around the perimeter of the touch screen. Also if there is a sharp
residue from the front bezel that comes in contact with the touch
screen top surface, it might cause squeeze the touch screen surface
to shift from the original position, it also might cause pillowing
occurred.
Fig. 32 Preventing Touch Screen Distortion
-
Apex Mater ia l Technology Corp . 21
AMT Touch Screen Integration Guide
3.3. Mounting Methods There are 3 mounting methods for
consideration: Front Mounting Rear Mounting Sandwich Mounting After
mounting the touch screen, LCD module and front bezel, the side
view is as shown at Fig. 33 below
Fig. 33 Touch screen integration side view
3.3.1 Front Mounting Design The LCD display modular is mounted
to the underside of the bezel and the touch screen is mounted on to
the front of the bezel and a graphic overlay over the touch screen.
To design a frame that embeds the touch screen, the depth of this
embedment is the total thickness of the touch screen with gasket if
necessary. Due to the gaps and height tolerance between the touch
screen and the housing, it is necessary for the graphic overlay to
create an emboss design around the perimeter of the touch screen in
order to overcome this optical problems, see Fig. 34 below.
Fig. 34 Design an emboss around the perimeter of the touch
Screen
-
Apex Mater ia l Technology Corp . 22
AMT Touch Screen Integration Guide
Do not use silicon glue to mount the touch screen to the bezel,
as it will be very difficult to remove the touch screen from the
housing when needed.
Fig. 35 Avoid using silicon to the touch screen
It is necessary to ensure the graphic overlay does not have very
strong adhesive laminated on top of the touch screen. See Fig. 35
above, It is suggested to use two different type of adhesive for
this integration, one is for touch screen that will be optical
adhesive, and the other side of emboss area is the adhesive to hold
the graphic overlay with bezel. When using Metal Alloy Housing or
Plastic Housing
It is necessary to use a rear side adhesive that will allow you
to remove the touch screen from the LCD module not difficulty when
re-alignment is necessitated or warranty purpose. The display will
get warm after a period of usage; therefore, select an adhesive
that will perform well within the operating temperature range of
the display and your application environment.
The rear adhesive or gasket is for prevention of dust and
contamination from
getting in between the display and the touch screen backer. Thus
the hardness and thickness of the gasket is a very important
factor; the ideal rear gasket thickness is less than 1.00 mm thick
with a minimum hardness of shore scale A50.
Never use low-density foam as rear gasket of touch screen for
the touch screen
size larger than 12” or the touch screen has a thicker type
glass backer, as there will not be enough support to the glass
backer.
-
Apex Mater ia l Technology Corp . 23
AMT Touch Screen Integration Guide
After mounting the touch screen into the designated area of the
metal alloy or
plastic housing, the graphic overlay can now be mounted /
laminated onto the front of the touch screen. During this process,
it is necessary to ensure that there be no double-sided adhesive at
the touch screen tail. The minimum clearance for the double-sided
adhesive to these areas should be 1.5mm on each side. Refer to Fig.
36 below.
Fig. 36 Touch screen with graphic overlay
The plastic housing must be rigid enough to withstand any
twisting force that may
occur to prevent the touch screen from getting damage or
broken.
3.3.2 Rear Mounting Design The touch screen is mounted onto the
LCD display and the front bezel is mounted on top of the touch
screen.
It is necessary to use a rear adhesive that will allow you to
remove the touch screen from the LCD module during repairs /
maintenance of your system. The display will get warm after a
period of usage; therefore, select an adhesive that will perform
well within the operating temperature range of the display and your
application environment.
The rear adhesive or gasket is for prevention of dust and
contamination from
getting in between the display and the touch screen, it also
performs as a buffer between touch screen glass and LCD metal
frame. It is not necessary to use a thick gasket except the system
is for certain purpose design. The thickness of the gasket is
depended on the size of touch screen display. See Fig. 37.
-
Apex Mater ia l Technology Corp . 24
AMT Touch Screen Integration Guide
Fig. 37 Use gasket to protect the touch screen
Consider to design several ‘ribs’ to the underside of the front
bezel to hold the touch screen, see Fig. 38 below. The touch screen
is placed inside the ribs area to hold the touch screen to prevent
it from moving for slipping. By this way there would be no need for
very high bond adhesive between LCD and touch screen or touch
screen to front bezel.
Fig. 38 Design a rib to hold the Touch screen
Fig. 39 High possibly of breakage at pressure point
-
Apex Mater ia l Technology Corp . 25
AMT Touch Screen Integration Guide
Do not design a rib made off hard material like metal to hold
the touch screens, it can cause the touch screen to crakes at the
pressure points due to uneven shear force created when it is being
tighten.
When designing an integration system with metal rib, we would
recommend
creating a rib around the perimeter to counter the uneven shear
stress at the pressure points.
Not Recommended
Recommended
Do not use silicon glue to bond the touch screen to the front
bezel as this will
cause difficulties in removing touch screen from the housing
when necessary. If your application device requires water
resistance, please consider to design
more protective method from the front bezel.
-
Apex Mater ia l Technology Corp . 26
AMT Touch Screen Integration Guide
Never mount the touch screen to the underside of the front bezel
directly when
there is no rear support to the touch screen. This may cause
touch screen function or pillowing problems after certain period of
usage.
It is recommended to apply a thin gasket on the front side of
the touch screen as this acts as a buffer between the touch screen
and the front bezel.
-
Apex Mater ia l Technology Corp . 27
AMT Touch Screen Integration Guide
3.3.3 Sandwich Mounting Design
The touch screen is mounted onto and held by the front bezel and
LCD module. Touch screen does not require front or rear adhesive.
The integration layer is shown at Fig. 40
Fig. 40 Sandwich Design
The mounting order is: put the front bezel face downwards on a
platform first, follow by placing the gasket inside the front
bezel, then mount the touch screen, follow by LCD module, use
screws to fix the LCD module to the front bezel.
Design several thick ribs inside the front bezel or design a
thick front bezel frame to hold the touch screen and the LCD
display module securely in place and avoid any movement to the
touch screen. Normally, screws are used to clamp the LCD display
module to the front bezel. The touch screen is held in place
between the front bezel and the LCD module without any adhesive
tapes.
A front bezel gasket is required to buffer the bezel from the
touch screen; another gasket is required to buffer the rear of the
touch screen from the LCD panel.
During fastening of the front bezel to the touch screen and LCD
module, ensure force is applied evenly in order to prevent possible
shifting or dislodgement of the touch screen top film which may
cause poor performance.
If O-ring gasket is used for the front bezel, ensure that it
does not generate any stress on the top surface of touch screen,
such as torque force or twisting force from the compression force
of the screws. See Fig. 41
Fig. 41 O-ring design
-
Apex Mater ia l Technology Corp . 28
AMT Touch Screen Integration Guide
3.4 Protective Film After integrating the touch screen to the
front bezel or graphic overlay, etc, if there is protective film
requested to cover the touch screen surface, never use protective
film with strong adhesive bonds on the touch screen; this can cause
contact problems that may arise when tearing off the very high bond
protective film from the touch screen and cause the top film to
dislodgement from its glass backer. Use only low adhesive
protective film to protect the touch screen. After the end user
starts to use the touch screen system, please suggest end user to
throw away the protective film. When use a protection film for the
touch screen the adhesion force must not be greater than 3N/25mm.
This is to prevent contact problems that may arise due to the
de-lamination of the touch screen’s top film from the glass backer
piece when tearing off the protection film.
Fig. 42 Do not use protection film with strong adhesive bond
Fig. 43 Correct type of protection film
-
Apex Mater ia l Technology Corp . 29
AMT Touch Screen Integration Guide
Chapter 4: Low Reflective Touch Screen AMT provide two series of
low reflective touch screens, Linear polarizer (LN) and Circular
polarizer (CR) type. AMT’s LN series of touch screens utilize
application of a polarizer film, and the CR series application of a
circular polarizer film with or without additional quarter-wave
film.
4.1 Absorption Axis Angle The design of the Low Reflective Touch
Screen is dependent on your LCD display absorption axis angle. The
common LCD displays come in either 45 or 135 degree absorption axis
angle. It is very important know your selected LCD display
absorption axis angle and not to install the low reflective touch
screen. It is very important for us to know your selected LCD
display absorption axis angle, only them we can select or design a
proper low reflective touch screen for your application. If your
LCD display comes in other absorption axis angles, we can modify
our touch screen to match your LCD display.
However, to make the samples right the first time around, we are
sending you a small piece sample that is named ‘LAAT’ (LCD
absorption Axis tester that is a piece of glass laminated with a
piece of polarizer film) to confirm your LCD absorption axis.
4.2 Linear Polarizer Touch Screens The LN touch screen is
enhanced by additional of a polarizer film, resulting in superior
application in handheld products with reduced weight, for smaller
touch screens of 3” to 7”.
4.3 Circular Polarizer Touch Screen Circular polarizer touch
screen uses a linear polarizer to convert incoming light to a
specific direction, and the first layer of quarter-wave film
further converts the light to a circular clockwise polarity. When
reflected, the light is converted to a counterclockwise path and
the reflected light is blocked by the polarizer film from exiting.
Thus reflection is reduced considerably to less than 1.5%.
4.4 Checking and Handling When checking the Low reflective touch
screen in incoming inspection ensure the orientation are correct.
The touch screens are design with specified absorption axis angle
to match the display LCD. Please be extra caution when handling the
low reflective CR type touch screen products. To avoid scratches on
the rear surface of the low reflective touch screen please ensure
the rear side should not be rubbed, wiped or cleaned
improperly.
-
Apex Mater ia l Technology Corp . 30
AMT Touch Screen Integration Guide
Please note the rear quarter-wave retardation film can be
scratch when improper cleaning methods are use. We recommend having
the rear double-side adhesive tape to be carried out as option in
AMT. In doing so we can attach the touch screen directly to the LCD
immediately after peeling off the rear protective film. We do no
recommend to have the rear of the touch screen wipe but unless it
is necessary. 4.5 Installation Recommendation We recommend
incorporating the design of the front bezel able to prevent liquid
from seeping into the touch screens; prevent condensation from
forming around the touch screens; This is very important for these
low reflective touch screens retaining the special optical
properties. Please ensure to follow the percentage of the humidity
as stated in the approved sheet.
4.6 Care and Cleaning The low reflective touch screen requires
very little maintenance like the normal touch screens. We recommend
that you periodically clean the touch screen surface with dry soft
cloth; only if necessary we would recommend the usage of Alcohol or
Isopropyl Alcohol for difficult stain or sanitary purpose. When
cleaning the low reflective touch screens do not spray the cleaning
agent on the
screen itself, always dampen the cloth and clean the screen.
After cleaning, make sure the surface is dry there must not be any
left over solvent
seep into the display. It is very important to prevent water
penetrating into the touch screen from the
perimeter cleaning. This can cause the touch screen to loss some
of it’s special optical properties.
Do not use high-pressure air, water or steam to clean the
surface of the touch screen. This action may cause the touch screen
to mal-function.
-
Apex Mater ia l Technology Corp . 31
AMT Touch Screen Integration Guide
4.7 Others The thickness of the low reflective touch screen is
usually slightly thicker than our normal touch screen. Thus when
changing from normal touch screen to low reflective type, please
ensure the mounting system are not too tight. If so, this can cause
the low reflective touch screen to have pillow. You may require
changing gasket thickness.
-
Apex Mater ia l Technology Corp . 32
AMT Touch Screen Integration Guide
Chapter 5: Capacitive Touch Screen The following illustration
below shows a typical integration method of our capacitive touch
screen to your LCD display or system.
Figure 44: Typical Integration method of capacitive touch
screen
5.1 Front Bezel and Housing It is important to keep in mind that
metallic materials can present a stray capacitive loading to the
touch screens or recognized as a touch. The following guild lines
must be followed when positioning the touch screen near conductive
surface. This includes conductive paint that is used to apply on
some of the plastic bezels; metal mounting brackets and screws.
There must be no physically contact to the front or sides of the
touch screens. We do not recommend metal housing and front bezel
for this application. When this cannot be avoided it is very
important not directly contact the touch screen. The design must be
properly grounded and incorporate insulating material as sealing
gasket between the front bezel and touch screen.
5.2 Sealing Gasket The sealing gasket material is best to be an
insulating material. Ensure the gasket only comes in contact with
the perimeter of the touch screen and does not interferes with the
viewing are. We recommend single-sided adhesive on the front bezel
instead of on to the touch screen surface.
-
Apex Mater ia l Technology Corp . 33
AMT Touch Screen Integration Guide
5.3 Mounting Tape The main functions of the Mounting Tape are to
hold the touch screen in position and to maintain a constant
distance between the touch screen and the LCD panel. The mounting
tape must have a minimum thickness of 1.6mm and not easily be
compressed from touch forces or temperature changes. It is
necessary to leave 1 ~ 2mm ventilation holes at corner, this is to
allow hot air to escape to avoid temperature and pressure
equalization issue. The touch screen must be mounted in a very
stable manner and failure to following the instructions this may
result in reduced accuracy.
5.4 Tail Routing It is important to position the touch screen
tail in such a way that its bent radius is greater than 1.5mm.
Avoid pulling the tail and bending the tail to minimize the risks
of creating upward stress from tail to touch screen. The tail
should not pull, push or put any tension on the top sheet of the
touch screen and it should not move freely after assembly. Apply
tape to secure the tail in a manner that does not apply stress to
the tail Never route the touch screen tail around unshielded high
voltage like the inverter or power transformer. Ensure that the
tail’s contact with the connector will not be loosened by
vibration.
-
Apex Mater ia l Technology Corp . 34
AMT Touch Screen Integration Guide
CHAPTER 6: Touch Screen Care and Cleaning The touch screen
requires very little maintenance. We recommend that you
periodically clean the touch screen surface with dry soft cloth,
only if necessary we would recommend the usage of Alcohol or
Isopropyl Alcohol for difficult stain or sanitary purpose. When
using other solvent or cleaning agent, be sure to follow the
manufacturer’s precautions and instruction. It is very important to
avoid using any other chemical on the touch screen. Always dampen
the cloth and clean the screen. We must not spray the cleaning
agent
on the screen itself, the drips can seep into the display or
stain the bezel. After cleaning, make sure the surface is dry there
must not be any left over solvent
seep into the display. It is very important the handle the touch
screens with care, do not use excess
squeezing or pushing force when cleaning. Do not use sharp
material to clean the touch screen surface Do not use high-pressure
air, water or steam to clean the surface of the touch screen.
This action may cause the touch screen to mal-function. When the
ketchup, food or drink drop on the surface, clean it immediately
Please check with the graphic overlay vendor on how to clean the
touch screen when
there is graphic overlay over of touch screen. It is necessary
to prevent water penetrating into the touch screen from the
perimeter
especially the tail area during cleaning.
Important Notice for Low Reflective Touch Screen (CR Type):
We advice our clients to be extra caution when handling the low
reflective touch screen
products. It is recommended to attach the touch screen directly
to the LCD immediately after
peeling off the rear protective film, unless necessary use a
soft cloth lightly wipe the surface for
cleaning.
Note : Chemical Test had been carried out on the surface of our
touch screen.
-
Apex Mater ia l Technology Corp . 35
AMT Touch Screen Integration Guide
CHAPTER 7: Contacting Information Apex Material Technology Corp.
4F, No. 274, Pei Shen Road, Sec. 3, Shen Keng Hsiang, Taipei Hsien,
Taiwan 222 Tel: 886-2-26648138 Email: [email protected] Web:
www.amtouch.com.tw
-
Apex Mater ia l Technology Corp . 36
AMT Touch Screen Integration Guide
1. The correct unpacking position is the top side with the AMT
Logo. (Refer to Fig.1 & 2)
2. When cutting the transparent packing tapes, do not exceed 1
cm into the box to prevent the surface of the touch screens from
being scratched. (Refer to Fig.3 & 4)
3. Do not remove touch screen by the tail. (Refer to Fig. 5)
Remove with care by the rims of the glass. (Refer to Fig. 6)
4. When stacking the touch screens on top of each other, always
use a buffer material between touch screens. (Fig. 7)
5. There are serial numbers and ‘OK’ label on the tail. It is
the front side or the touch function side. (Fig. 8)
AMT IS QUALITY
6. Other Precautions: The touch screens are covered with
protective film to keep the surface of the touch
screen clean. Please remove the protective film before
assembly.
For assembly precaution or other items not mentioned here,
please refer to AMT’s Integration Guide for recommendations and
integration to system or LCD.
When storing the touch screens do not pile or stack more than 5
boxes.
If you have any queries, please contact us at
“[email protected]”.
APPENDIX I: How to Handle AMT Touch Screen
-
Page 1 of 5
Apex Material Technology Corp.
Document No: A001-2
Revision : P
Touch Screen Optical Quality Standard
Released :2008/12/1
Page:5 Page 1.0 Scope
This document describes workmanship standard for AMT Touch
screens that view area diagonal size is larger than 8.4”(included)
and small than 12.0”. Each part is built to meet this standard
unless otherwise noted on the sign-off drawing for the part
number.
2.0 Workmanship Standard 2.1 Cosmetic Standards – for Active
area
Discrepancy item Specifications Allowed /Reject Remark
D≦0.25 Not count as a defect 0.250.40 Reject D≦0.40 Not count as
a defect 0.400.70 Reject D≦0.40 Accept Hollow or
protuberance spot D>0.40 Reject W≦0.025 Not count as a defect
for any length 0.025
-
Page 2 of 5
Apex Material Technology Corp.
3.1 N
2.2.3 Hollow or protuberance spots are like a stain on the touch
screen surface under light, that are mainly transparent from
ambient fluorescent lighting and can be measured, the measured
result is the actual diameter.
2.2.4 Scratches are linear defects with the length greater than
6 times their width. 2.2.5 Lint is fibrous material or hair having
a length greater than 6 times its width. 2.2.6 The silver trace
smears outside the conductive circuit shall be less than 0.3mm for
translucent
defect and 0.2mm for opaque spot.
2.3 Other Notes: 2.3.1 Each touch panel allows Four accepted
defects located at the active area. Five acceptable
translucent type defects located at the non-active area is also
acceptable 2.3.2 The size of irregularly shaped defects is the
average of the maximum and minimum
dimensions. 2.3.3 The definition of lint length is listed as
below: 2.3.4 The inspected part is placed vertically at eye level,
distance is 45cm, against black and white
backgrounds, under ambient fluorescent lighting, and inspecting
time is 10 seconds. The inspection surroundings are suggested under
the brightness less than 1000LUX.
2.3.5 If a text or line is seen as distortion by eyes, the part
is treated as defect. 2.3.6 If a defect is unable to be measured by
ocular nor be seen in front of LCD monitor, it is an
accepted item.
3.0 Cosmetic Standards
on Critical Visual Areas This applies to perimeter areas of the
part that are not viewed in normal applications, such as outer
borders and the tail:
Debris of lines in the perimeter spacer adhesive are allowed as
long as they do not cause delaminating across the entire width of
the adhesive or allow a direct path for liquids or other
contaminants into the viewing area or to electrically functional
area.
Tails, unless the drawing calls out for a bend, are to be free
of permanent creases in the polyester, slight crease lines in the
adhesive tail cover are allowed.
Scratch, lint and dirt are allowed in non-critical visual areas
unless they affect functionality. 3.2 Other Workmanship
Standard
3.2.1 Separator dots: Up to eight missing dots are allowed,
which must be separated by >0.5” (1.25cm).
3.2.2 Protect film dots: If the specification requested to print
dots on the protect film, we just should make sure the
dots existed or not, and ignore the quantity fallen off of the
dot.
Lint type A
Lint length l Lint A total length L= l *1.2 Lint B total length
L= l *1.5
Lint type B
-
Page 3 of 5
Apex Material Technology Corp.
3.2.3 Conductive silver ink: Voids in traces to be less than 25%
of the trace width. The protruding from the void in the trace must
not extend into the Active Area. Tarnishing which is dark or black
is not allowed. Minor tarnishing is allowed on up to half the trace
width. Silver specks in the active area not allowed.
3.2.4 Conductive carbon ink: Carbon over silver traces can only
leave up to 0.15mm silver exposed along the trace edge. Voids in
traces to be less than 25% of the trace width.
3.2.5 Insulator ink: Pinholes diameter less than 0.5mm in areas
is acceptable.
3.2.6 Alignment: Layer to layer alignment to be
-
Page 4 of 5
Apex Material Technology Corp.
3.2.9 Newton Ring: 3.2.9.1 Inspection criteria
Luminance during Newton Ring inspection is 800–1200 lux. , under
23W daylight lamp, distance between eyes and touch panel is 30cm
minimum, angle between eyes and the surface of Touch Panel is about
60∘and use dark background. ( Figure A)
3.2.9.2 No obvious Newton Ring is allowed if touch panel with
ANR designed. Newton Ring phenomenon must similar or smaller than
which on the samples provided to customer if touch panel without
ANR design.
3.2.9.3 The Newton Ring specification is not applied to the
touch screen that has done the aging test or environment test.
-
Page 5 of 5
Apex Material
Technology Corp.
4.0 Cosmetic standards for glass Corner :
X≦4.0mm and Y≦4.0mm and Z
-
制訂單位:品保部
文件編號:A001-2
版 次:P 觸控螢幕外觀檢驗標準
制訂日期: 2005/11/1
修訂日期:2008/11/27
頁 數: 5
- 1 -
創為精密材料股份有限公司
1.0 範圍: 本標準適用於 AMT 的觸控螢幕尺寸介於 8.4 吋(含)以上和 12 吋(不含)
之產品,適用於產品客戶之進料檢驗作業規範,若在個別產品的承認圖面上另
有聲明者除外。
2.0 動作領域標準: 2.1 外觀檢驗 – 動作區(ACTIVE AREA)
項目 規格定義 允許範圍 說明
D≦0.25 忽略不計
0.250.4 拒收
D≦0.4 忽略不計
0.400.70 拒收
D≦0.40 允收 凹凸點
D>0.40 拒收
W≦0.025 任何長度忽略不計
0.025
-
制訂單位:品保部
文件編號:A001-2
版 次:P 觸控螢幕外觀檢驗標準
制訂日期: 2005/11/1
修訂日期:2008/11/27
頁 數: 5
創為精密材料股份有限公司
- 2 -
2.2 瑕疵的定義:
2.2.1 在白色及黑色的襯底下,點狀不良的點是在 PET 內或在 Touch screen 中
間的污點或異物。
2.2.2 透明點如膠帶的氣泡或膠,一般在燈光下是透明的。
2.2.3 表面上的凹凸點在一般的燈光下呈霧狀,在光源下呈透明可以量測, 其
大小以實際量測為準。
2.2.4 刮傷是線狀,長度要大於寬度的六倍。
2.2.5 毛屑纖維或頭髮,長度要大於寬度的六倍。
2.2.6 點膠孔處溢膠若是透明狀小於 0.3mm 則為允收,若是有色溢膠大於 0.2mm
則為拒收品。
2.3 注意事項:
2.3.1 每片 Touch Panel 動作區允許四個允許範圍的缺點。非動作區可以有五個
允許瑕疵。
2.3.2 不規則的瑕疵尺寸是按瑕疵品之最大尺寸與最小尺寸相加後除以 2後之平
均值計算。
2.3.3 毛屑長度計算方式說明:
毛屑形狀 A 毛屑形狀 A 總長 L= l *1.2
毛屑形狀 B 總長 L= 毛屑長 l
l *1.5 毛屑形
狀 B
2.3.4 檢驗方法必須以目視距離 45cm 檢驗,底色為黑色與白色,光源為燈箱,
檢視時間為 10 秒,同時檢驗環境的亮度建議於 1000LUX 以下。
2.3.5 若瑕疵造成視覺上線條或文字失真,則視為拒絕品。
2.3.6 若瑕疵無法用 10 倍放大 ocular 實際量測或無法在 LCD monitor 前被看
到,這個瑕疵應是被允收的。
3.0 外觀檢驗: 3.1 非關鍵性視覺區 (Non Critical Visual Areas)
此檢驗標準適用於 Touch Screen 的周圍,如邊緣和出線。
周圍的膠帶之皺褶或 PET 邊緣有毛邊,或 PET
歪斜但未超過玻璃,四週黏合膠帶若無明顯縫隙可直接導入液體或其他污染到可視區,此種情形皆可接
受。
出線不能被摺死,但表層輕微的摺痕可接受。 此區的刮傷、毛屑和污點可接受,除非影響作用功能。
-
制訂單位:品保部
文件編號:A001-2
版 次:P 觸控螢幕外觀檢驗標準
制訂日期: 2005/11/1
修訂日期:2008/11/27
頁 數: 5
創為精密材料股份有限公司
- 3 -
3.2 其他動作領域標準:
3.2.1 Touch Panel 間柱(Separator dots):
一片觸控螢幕上最多允許 8個間柱脫落,若有間柱脫落,兩個脫落的間
柱距離必須>0.5" (1.25cm)。
3.2.2 保護片間柱:
若保護片規格需印間柱,則確定間柱存在,不計較間柱脫落數量。
3.2.3 銀線(Conductive silver ink): 銀線的空隙需小於銀線寬度的 25%。
銀線變暗色,若不超過銀線寬的一半是可以接受的。 銀線上的氣泡凸起若延伸至動作區{ACTIVE AREA},則為拒收品。
銀線污點在觸控區不被接受。
3.2.4 碳膜(Conductive carbon ink):
Carbon 與銀線的偏移最多只能在 0.15mm 之內。 Carbon 未覆蓋到銀線需小於銀線寬的 25%。
3.2.5 絕緣膠(Insulator ink):
有小孔直徑≦0.5mm 破洞但不影響絕緣功能時允許, 若影響絕緣功能時是
不允許的。
3.2.6 上下層偏差(Alignment):
上下層的組合偏移< 0.03" (0.76mm)。(指任意兩層間的組合) 上層 PET 不能超過下層玻璃。
3.2.7 浮起現象(Pillowing):
所謂浮起現象乃是因為上層 PET 導入空氣而產生於 PANEL 表面有微微隆起
之情形,則為 Pillowing 現象。
3.2.7.1 採用 ANR 材料設計者,上層 PET 浮起必須≦0.38mm。
3.2.7.2 若客戶將產品經過環境模擬測試或經組裝、燒機(Burn-in)作業,均不
能適用此 Pillowing 檢驗規格。
-
制訂單位:品保部
文件編號:A001-2
版 次:P 觸控螢幕外觀檢驗標準
制訂日期: 2005/11/1
修訂日期:2008/11/27
頁 數: 5
創為精密材料股份有限公司
- 4 -
3.2.8 波紋現象(Ripple):
3.2.8.1 波紋定義:具備以下條件者稱之:
波紋形狀為狹長型或一處凸起稱之。 凸起處與周圍高低落差在 0.2 mm 以上。 凸起寬度≧10mm 以上。 須在大於
30°以上視角可看見,且位於動作區。
3.2.8.2 下列情形為允收,其餘為拒收:
波紋高度小於 0.2mm。 Touch Panel 只有一個波紋,其最長部分,小於動作區對角線長度的1/4,其面積小於總面積的
1/4。
Touch Panel 有二個波紋,其最長部分小於動作區對角線長度的 1/8,每一面積均小於總面積的 1/8,且兩波紋相距
50mm 以上。
3.2.8.3 若客戶將產品經過環境模擬測試或經組裝、燒機(Burn-in)作業,均
不能適用此 Ripple 檢驗規格。
3.2.9 牛頓環(Newton Ring):
3.2.9.1 檢驗標準:
牛頓環檢驗時照明度使用 800~1200 lux.,在 23W 自然色螢光燈下,眼
睛距離 Touch Panel 至少 30 公分,約成 60 度角並使用深色背景。
(Figure A)
3.2.9.2
有 ANR 設計的 Touch Panel,其於自然光下目視檢查,不可有明顯牛頓環。 沒有 ANR 設計的 Touch
Panel,其於自然光下目視檢查,其牛頓環現象需小 於或類似於提供給客戶的限度樣品。
3.2.9.3 若客戶將產品經過環境模擬測試或經組裝、燒機(Burn-in)作業,均不能.
適用此牛頓環檢驗規格。
-
制訂單位:品保部
文件編號:A001-2
版 次:P 觸控螢幕外觀檢驗標準
制訂日期: 2005/11/1
修訂日期:2008/11/27
頁 數: 5
創為精密材料股份有限公司
- 5 -
4.0 玻璃規格:
缺角 :
X≦4.0mm and
Y≦4.0mm and
Z