Datasheet: ATM0240B20

AZ DISPLAYS
SPECIFICATIONS FOR
LIQUID CRYSTAL DISPLAY
CUSTOMER APPROVAL
※ PART NO. : ATM0240B20 (AZ DISPLAYS) VER1.0
COMPANY
CHOP
APPROVAL
CUSTOMER
COMMENTS
AZ DISPLAYS ENGINEERING APPROVAL
DESIGNED BY
CHECKED BY
APPROVED BY
WJQ
LIUH
GUZH
ATM0240B20(AZ DISPLAYS) TFT MODULE
VER1.0
REVISION RECORD
REVISION
REVISION DATE
VER1.0
2015-06-26
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CONTENTS
FIRST ISSUED
1
ATM0240B20(AZ DISPLAYS) TFT MODULE
VER1.0
※ CONTENTS
1.
GENERAL SPECIFICATIONS
2.
PIN ASSIGNMENT
3.
OPERATING SPECIFICATIONS
4.
OPTICAL SPECIFICATIONS
5.
RELIABILITY TEST
6.
PRECAUTION FOR USING LCM
7.
MECHANICAL DRAWING
8.
INSPECTION SPECIFICATION
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ATM0240B20(AZ DISPLAYS) TFT MODULE
VER1.0
1. GENERAL SPECIFICATIONS
Item
Specification
1. LCD size
2.4 inch(Diagonal)
2. Driver element
a-Si TFT active matrix
3. Resolution
240x(RGB)x320
4. Display mode
Normally Black,Transmissive (IPS)
5. Dot Pitch (W*H)
0.153mm(W) x 0.153mm(H)
6.
Active Area(W*H)
36.72mm(W) x 48.96mm(H)
7.
Module size (W*H)
42.72mm(W) x 60.26mm(H) x 2.1mm(D)
8.
Color arrangement
RGB-stripe
9. Driver IC
IILI9341
10. Interface
See the MCU Selection interface
11. Viewing angle
All
12. RoHS
RoHS compliant
Remark
Note 1
Note 1: Please refer to mechanical drawing.
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ATM0240B20(AZ DISPLAYS) TFT MODULE
VER1.0
2. PIN ASSIGNMENT
FPC Connector is used for the module electronics interface. The recommended model is
“FH19SC-40S-0.5SH" manufactured by Hirose.
NO
1
2
3
Symbol
GND
IOVCC
VCC
IM2
Function
I/O
P
P
P
6
IM0
Ground
Power supply for internal circuit, 2.8V typical
Power supply(3.3V)
Select the MCU interface
IM2 IM1 IM0
Interface type
0
0
0
DBI Tyb_8bit interface
0
0
1
DBI Tyb_16bit interface
0
1
0
DBI Tyb_9bit interface
0
1
1
DBI Tyb_18bit interface
1
0
1
3-Wire 9 BIT DATA serial
interface
1
1
0
4-Wire 8 BIT DATA serial
interface
NOTE:
1.If not use PIN,fix to the GND ,IOVCC or NC.
2.If use RGB mode must select serial interface
7
8
9
10
11
12
13
RESET
CS
DC
WR
RD
VSYNC
HSYNC
Reset the chip
Chip select
Data or command select pin
Write enable
Read enable
Frame synchronizing signal for RGB interface operation
Line synchronizing signal for RGB interface operation
I
I
I
I
I
I
I
14
EN
Data enable signal for RGB interface operation
I
15
DCLK
Dot clock signal for RGB interface operation
I
16
1734
35
36
37
38
SDA
Serial in/out signal.
I/O
DB0-DB17
Data bus
I/O
SDO
NC
LEDA
LEDK
Serial output signal.
No connection
LED anode
LED cathode
O
P
P
39
NC
No connection
-
40
GND
Ground
P
4
IM1
5
BD in use
DB7-DB0
DB15-DB0
DB8-DB0
DB17-DB0
SDA SCL CS
I
I
SDA SCL CS RS
I
I: input, O: output, P: Power
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ATM0240B20(AZ DISPLAYS) TFT MODULE
VER1.0
3. Operating Specification
3.1 ABSOLUTE MAXIMUM RATINGS
Item
Symbol
Values
Min.
Max.
Unit
Logic Voltage
VDD
-0.3
3.3
V
Operation Temperature
TOP
-20
70
ºC
Storage Temperature
TST
-30
80
ºC
LED Reverse Voltage
VR
-
13
V
LED Forward Current
IF
20
mA
Remark
Each LED
Note 1: The absolute maximum rating values of this product are not allowed to be exceeded
at any times. Should a module be used with any of the absolute maximum ratings
exceeded, the characteristics of the module may not be recovered, or in an extreme
case, the module may be permanently destroyed.
3.1.1 Typical Operation Conditions
Item
Symbol
Values
Min.
Typ.
Max.
Unit
Logic Voltage
VDD
1.8
2.8
3.3
V
Input Logic High Voltage
VIH
0.8VDD
--
VDD
V
Input Logic Low Voltage
VIL
0
--
0.2DVDD
V
Remark
3.1.2 Backlight driving conditions
Item
Symbol
Voltage for LED Backlight
Values
Unit
Remark
13.2
V
Note 1
20
--
mA
--
--
Hr
Min.
Typ.
Max.
VL
11.6
12
Current for LED Backlight
IL
--
LED life time
--
30000
Note 2
Note 1: The LED Supply Voltage is defined by the number of LED at Ta=25℃ and IL =20mA.
Note 2: The “LED life time” is defined as the module brightness decrease to 50% original brightness at
Ta=25℃ and IL =20mA.
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ATM0240B20(AZ DISPLAYS) TFT MODULE
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3.2 Power on/off Sequence
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ATM0240B20(AZ DISPLAYS) TFT MODULE
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ATM0240B20(AZ DISPLAYS) TFT MODULE
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3.3 Timing Characteristics
3.3.1 Display Parallel 18/16/9/8-bit Interface Timing Characteristics
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ATM0240B20(AZ DISPLAYS) TFT MODULE
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ATM0240B20(AZ DISPLAYS) TFT MODULE
VER1.0
4.0 OPTICAL SPECIFICATIONS
Item
Viewing Angle
Symbol
Condition
θL
Φ=180o(9 O'CLOCK)
θR
o
Φ=0 (3 O'CLOCK)
o
Values
Min.
Typ.
Max.
--
85
--
--
85
--
θT
Φ=90 (12 O'CLOCK)
--
85
--
θB
Φ=270o(6 O'CLOCK)
--
85
--
Unit
Remark
Note 1
degree
Response Time
TON+TOFF
--
25
50
msec
Note 3
Contrast Ratio
CR
300
900
--
--
Note 4
0.26
0.31
0.36
--
Note 2
0.28
0.33
0.38
--
WX
Color Chromaticity
Luminance
Luminance Uniformity
Normal
Θ=Φ=0o
WY
L
--
250
--
cd/m
YU
75
80
--
%
Note 5
Note 6
2
Note 6
Note 7
Test Conditions:
1. VDD=3.3V, IL=20mA (Backlight current), the ambient temperature is 25℃.
2. The test systems refer to Note 2.
Note 1: Definition of viewing angle range
Figure 4.1 Definition of viewing angle.
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ATM0240B20(AZ DISPLAYS) TFT MODULE
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Note 2: Definition of optical measurement system.
The optical characteristics should be measured in dark room. After 30 minutes operation, the optical properties are
measured at the center point of the LCD screen. (Response time is measured by Photo detector TOPCON
Figure 4.2 Optical measurement system setup
Note 3: Definition of Response time
The response time is defined as the LCD optical switching time interval between “White” state and “Black” state. Rise
time (TON) is the time between photo detector output intensity changed from 90% to 10%. And fall time (TOFF) is the
time between photo detector output intensity changed from 10% to 90%.
Figure 4.3 Definition of response.
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ATM0240B20(AZ DISPLAYS) TFT MODULE
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Note 4: Definition of contrast ratio
Note 5: Definition of color chromaticity (CIE1931)
Color coordinates measured at center point of LCD.
Note 6: All input terminals LCD panel must be ground while measuring the center area of the panel. The LED driving
condition is IL=60mA .
Note 7: Definition of Luminance Uniformity
Active area is divided into 9 measuring areas (Refer to Fig. 4-4 ).Every measuring point is placed at the center of each
measuring area.
Figure 4.3 Definition of measuring points.
Bmax: The measured maximum luminance of all measurement position.
Bmin: The measured minimum luminance of all measurement position.
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ATM0240B20(AZ DISPLAYS) TFT MODULE
VER1.0
5. RELIABILITY TEST
Item
High temperature
storage
Low temperature
storage
High temperature
operation
Low temperature
operation
High temperature/High
humidity operation
Thermal Shock
Test Condition Item
Ta= 80 ºC 240hrs
Ta=-30 ºC 240hrs
Ts= 70 ºC 240hrs
Ts=-20 ºC 240hrs
90% RH 40ºC 240hrs
-30℃/30 min ~ +80℃/30 min for a total 10
cycles, Start with cold temperature and end
with high temperature.
Remark
Note 1
Note 4
Note 1
Note 4
Note 2
Note 4
Note 1
Note 4
Note 4
Note 4
Note 1: Ta is the ambient temperature of samples.
Note 2: Ts is the temperature of panel’s surface.
Note 3: In the standard condition, there shall be no practical problem that may affect the
display function. After the reliability test, the product only guarantees operation,
but don’t guarantee all of the cosmetic specification.
Note 4: Before cosmetic and function test, the product must have enough recovery time, at least 2 hours
at room temperature.
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ATM0240B20(AZ DISPLAYS) TFT MODULE
VER1.0
6. PRECAUTION FOR USING LCM
1. When design the product with this LCD Module, make sure the viewing angle matches to its purpose of usage.
2. As LCD panel is made of glass substrate, Dropping the LCD module or banging it against hard objects may cause
cracking or fragmentation. Especially at corners and edges.
3. Although the polarizer of this LCD Module has the anti-glare coating, always be careful not to scratch its surface.
Use of a plastic cover is recommended to protect the surface of polarizer.
4. If the LCD module is stored at below specified temperature, the LC material may freeze and be deteriorated. If it is
stored at above specified temperature, the molecular orientation of the LC material may change to Liquid state and it
may not revert to its original state. Excessive temperature and humidity could cause polarizer peel off or bubble.
Therefore, the LCD module should always be stored within specified temperature range.
5. Saliva or water droplets must be wiped off immediately as those may leave stains or cause color changes if
remained for a long time. Water vapor will cause corrosion of ITO electrodes.
6. If the surface of LCD panel needs to be cleaned, wipe it swiftly with cotton or other soft cloth. If it is not still clean
enough, blow a breath on the surface and wipe again.
7. The module should be driven according to the specified ratings to avoid malfunction and permanent damage.
Applying DC voltage cause a rapid deterioration of LC material. Make sure to apply alternating waveform by
continuous application of the M signal. Especially the power ON/OFF sequence should be kept to avoid latch-up of
driver LSIs and DC charge up to LCD panel.
8. Mechanical Considerations
a) LCM are assembled and adjusted with a high degree of precision. Avoid excessive shocks and do not make
any alterations or modifications. The following should be noted.
b) Do not tamper in any way with the tabs on the metal frame.
c) Do not modify the PCB by drilling extra holes, changing its outline, moving its components or modifying its
pattern.
d) Do not touch the elastomer connector; especially insert a backlight panel (for example, EL).
e) When mounting a LCM makes sure that the PCB is not under any stress such as bending or twisting.
Elastomer contacts are very delicate and missing pixels could result from slight dislocation of any of the
elements.
f) Avoid pressing on the metal bezel, otherwise the elastomer connector could be deformed and lose contact,
resulting in missing pixels.
9. Static Electricity
a) Operator
Wear the electrostatics shielded clothes because human body may be statically charged if not ware shielded clothes.
Never touch any of the conductive parts such as the LSI pads; the copper leads on the PCB and the interface terminals
with any parts of the human body.
b) Equipment
There is a possibility that the static electricity is charged to the equipment, which has a function of peeling or friction
action (ex: conveyer, soldering iron, working table). Earth the equipment through proper resistance (electrostatic earth:
1x108 ohm).
Only properly grounded soldering irons should be used.
If an electric screwdriver is used, it should be well grounded and shielded from commutator sparks.
The normal static prevention measures should be observed for work clothes and working benches; for the latter
conductive (rubber) mat is recommended.
c) Floor
Floor is the important part to drain static electricity, which is generated by operators or equipment.
There is a possibility that charged static electricity is not properly drained in case of insulating floor. Set the electrostatic
earth (electrostatic earth: 1x108 ohm).
d) Humidity
Proper humidity helps in reducing the chance of generating electrostatic charges. Humidity should be kept over 50%RH.
e) Transportation/storage
The storage materials also need to be anti-static treated because there is a possibility that the human body or storage
materials such as containers may be statically charged by friction or peeling.
The modules should be kept in antistatic bags or other containers resistant to static for storage.
f) Soldering
Solder only to the I/O terminals. Use only soldering irons with proper grounding and no leakage.
Soldering temperature : 280°C ± 10°C
Soldering time: 3 to 4 sec.
Use eutectic solder with resin flux fill.
If flux is used, the LCD surface should be covered to avoid flux spatters. Flux residue should be removed afterwards.
g) Others
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ATM0240B20(AZ DISPLAYS) TFT MODULE
VER1.0
The laminator (protective film) is attached on the surface of LCD panel to prevent it from scratches or stains. It should be
peeled off slowly using static eliminator.
Static eliminator should also be installed to the workbench to prevent LCD module from static charge.
10. Operation
a) Driving voltage should be kept within specified range; excess voltage shortens display life.
b) Response time increases with decrease in temperature.
c) Display may turn black or dark blue at temperatures above its operational range; this is (however not pressing
on the viewing area) may cause the segments to appear “fractured”.
d) Mechanical disturbance during operation (such as pressing on the viewing area) may cause the segments to
appear “fractured”.
11. If any fluid leaks out of a damaged glass cell, wash off any human part that comes into contact with soap and water.
The toxicity is extremely low but caution should be exercised at all the time.
12. Disassembling the LCD module can cause permanent damage and it should be strictly avoided.
13. LCD retains the display pattern when it is applied for long time (Image retention). To prevent image retention, do not
apply the fixed pattern for a long time. Image retention is not a deterioration of LCD. It will be removed after display
pattern is changed.
14. Do not use any materials, which emit gas from epoxy resin (hardener for amine) and silicone adhesive agent
(dealcohol or deoxym) to prevent discoloration of polarizer due to gas.
15. Avoid the exposure of the module to the direct sunlight or strong ultraviolet light for a long time.
The brightness of LCD module may be affected by the routing of CCFL cables due to leakage to the chassis through
coupling effect. The inverter circuit needs to be designed taking the level of leakage current into consideration. Thorough
evaluation is needed for LCD module and inverter built into its host equipment to ensure specified brightness.
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AZ DISPLAYS
A
K
GND
NC
LEDK
LEDA
NC
DB17
SDO
DB16
DB15
DB14
DB13
DB12
DB11
DB10
DB08
DB09
DB07
DB06
DB05
DB04
DB03
DB02
DB01
DB0
SDA
DOTCLK
ENABLE
HSYNC
VSYNC
RD
WR(SPI-RS)
CS
DC(SPI-SCL)
RESET
IM0
IM1
IM2
VCC
IOVCC
GND
Pin Name
ATM0240B20(AZ DISPLAYS) TFT MODULE
VER1.0
7. MECHANICAL DRAWING
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ATM0240B20(AZ DISPLAYS) TFT MODULE
VER1.0
8. INSPECTION SPECIFICATION
1.
SCOPE SPECIFICATIONS CONTAIN
1.1 DISPLAY QUALITY EVALUATION
1.2 MECHANICS SPECIFICATION
2.
SAMPLING PLAN
Sampling plan according to GB/T2828.1-2003/ISO 2859-1：1999 and ANSI/ASQC Z1.4-1993,
normal level 2 and based on:
Major defect: AQL 0.45
Minor defect: AQL 0 65
3.
PANEL INSPECTION CONDITION
3.1 ENVIRONMENT:
ROOM TEMPERATURE: 25±5°C.
HUMIDITY: 65±5% RH.
ILLUMINATION: 300 ~ 700 LUX.
3.2 INSPECTION DISTANCE:
35±5 CM
3.3 INSPECTION ANGLE:
THE VISION OF INSPECTOR SHOULD BE PERPENDICULAR TO THE SURFACE OF THE MODULE.
3.4 INSPECTION TIME：
PERCEPTIBILITY TEST TIME: 20 SECONDS MAX.
4. DISPLAY QUALITY
:
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ATM0240B20(AZ DISPLAYS) TFT MODULE
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ATM0240B20(AZ DISPLAYS) TFT MODULE
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