ATM0240B20 [AZDISPLAYS]
SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY;型号: | ATM0240B20 |
厂家: | AZ DISPLAYS |
描述: | SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY |
文件: | 总20页 (文件大小:569K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
AZ DISPLAYS
SPECIFICATIONS FOR
LIQUID CRYSTAL DISPLAY
CUSTOMER APPROVAL
※ PART NO. : ATM0240B20 (AZ DISPLAYS) VER1.0
COMPANY
APPROVAL
CHOP
CUSTOMER
COMMENTS
AZ DISPLAYS ENGINEERING APPROVAL
DESIGNED BY
CHECKED BY
APPROVED BY
WJQ
LIUH
GUZH
ATM0240B20(AZ DISPLAYS) TFT MODULE
REVISION RECORD
VER1.0
REVISION
REVISION DATE
PAGE
CONTENTS
VER1.0
2015-06-26
FIRST ISSUED
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AZ DISPLAYS
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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AZ DISPLAYS
ATM0240B20(AZ DISPLAYS) TFT MODULE
1. GENERAL SPECIFICATIONS
VER1.0
Item
Specification
Remark
1. LCD size
2.4 inch(Diagonal)
2. Driver element
3. Resolution
a-Si TFT active matrix
240x(RGB)x320
4. Display mode
5. Dot Pitch (W*H)
6. Active Area(W*H)
7. Module size (W*H)
8. Color arrangement
9. Driver IC
Normally Black,Transmissive (IPS)
0.153mm(W) x 0.153mm(H)
36.72mm(W) x 48.96mm(H)
42.72mm(W) x 60.26mm(H) x 2.1mm(D)
RGB-stripe
Note 1
IILI9341
10. Interface
11. Viewing angle
12. RoHS
See the MCU Selection interface
All
RoHS compliant
Note 1: Please refer to mechanical drawing.
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AZ DISPLAYS
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
Symbol
GND
Function
I/O
P
Ground
2
IOVCC
VCC
IM2
Power supply for internal circuit, 2.8V typical
Power supply(3.3V)
Select the MCU interface
P
3
P
IM2 IM1 IM0
Interface type
BD in use
DB7-DB0
DB15-DB0
DB8-DB0
DB17-DB0
4
I
0
0
0
0
1
0
0
1
1
0
0
1
0
1
1
DBI Tyb_8bit interface
DBI Tyb_16bit interface
DBI Tyb_9bit interface
DBI Tyb_18bit interface
IM1
IM0
3-Wire
9
BIT DATA serial SDA SCL CS
5
6
I
I
interface
1
1
0
4-Wire
8
BIT DATA serial SDA SCL CS RS
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
RESET
CS
DC
Reset the chip
I
I
I
I
I
I
I
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
10 WR
11 RD
12 VSYNC
13 HSYNC
14 EN
Data enable signal for RGB interface operation
Dot clock signal for RGB interface operation
Serial in/out signal.
I
I
15 DCLK
16 SDA
17-
I/O
DB0-DB17 Data bus
I/O
34
35 SDO
36 NC
37 LEDA
Serial output signal.
No connection
LED anode
O
-
P
38 LEDK
39 NC
LED cathode
No connection
Ground
P
-
40 GND
P
I: input, O: output, P: Power
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AZ DISPLAYS
ATM0240B20(AZ DISPLAYS) TFT MODULE
3. Operating Specification
VER1.0
3.1 ABSOLUTE MAXIMUM RATINGS
Values
Min.
Item
Logic Voltage
Symbol
Unit
Remark
Max.
3.3
70
VDD
TOP
TST
VR
-0.3
-20
-30
-
V
ºC
ºC
V
Operation Temperature
Storage Temperature
LED Reverse Voltage
LED Forward Current
80
13
IF
20
mA
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
Values
Item
Logic Voltage
Symbol
Unit
Remark
Min.
1.8
Typ.
2.8
--
Max.
3.3
VDD
VIH
VIL
V
V
V
Input Logic High Voltage
Input Logic Low Voltage
0.8VDD
0
VDD
--
0.2DVDD
3.1.2 Backlight driving conditions
Values
Typ.
12
Item
Symbol
Unit
Remark
Min.
11.6
--
Max.
13.2
--
Voltage for LED Backlight
Current for LED Backlight
LED life time
VL
IL
V
Note 1
20
mA
Hr
--
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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AZ DISPLAYS
ATM0240B20(AZ DISPLAYS) TFT MODULE
VER1.0
3.2 Power on/off Sequence
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AZ DISPLAYS
ATM0240B20(AZ DISPLAYS) TFT MODULE
VER1.0
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AZ DISPLAYS
ATM0240B20(AZ DISPLAYS) TFT MODULE
VER1.0
3.3 Timing Characteristics
3.3.1 Display Parallel 18/16/9/8-bit Interface Timing Characteristics
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AZ DISPLAYS
ATM0240B20(AZ DISPLAYS) TFT MODULE
VER1.0
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AZ DISPLAYS
ATM0240B20(AZ DISPLAYS) TFT MODULE
4.0 OPTICAL SPECIFICATIONS
VER1.0
Values
Typ.
85
Item
Symbol
Condition
Unit
Remark
Min.
--
Max.
θL
θR
Φ=180o(9 O'CLOCK)
Φ=0o(3 O'CLOCK)
Φ=90o(12 O'CLOCK)
Φ=270o(6 O'CLOCK)
--
--
Note 1
--
85
Viewing Angle
degree
θT
--
85
--
θB
--
85
--
Response Time
Contrast Ratio
TON+TOFF
CR
--
25
50
--
msec
Note 3
Note 4
Note 2
Note 5
Note 6
Note 6
Note 7
300
0.26
900
0.31
--
--
WX
0.36
Normal
Θ=Φ=0o
Color Chromaticity
WY
0.28
0.33
0.38
--
Luminance
L
--
250
80
--
--
cd/m2
%
Luminance Uniformity
YU
75
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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AZ DISPLAYS
ATM0240B20(AZ DISPLAYS) TFT MODULE
VER1.0
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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AZ DISPLAYS
ATM0240B20(AZ DISPLAYS) TFT MODULE
VER1.0
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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AZ DISPLAYS
ATM0240B20(AZ DISPLAYS) TFT MODULE
5. RELIABILITY TEST
VER1.0
Item
Test Condition Item
Ta= 80 ºC 240hrs
Remark
Note 1
Note 4
High temperature
storage
Note 1
Note 4
Low temperature
storage
Ta=-30 ºC 240hrs
Ts= 70 ºC 240hrs
Note 2
Note 4
High temperature
operation
Note 1
Note 4
Low temperature
operation
Ts=-20 ºC 240hrs
High temperature/High
humidity operation
Note 4
90% RH 40ºC 240hrs
-30℃/30 min ~ +80℃/30 min for a total 10
cycles, Start with cold temperature and end
with high temperature.
Thermal Shock
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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AZ DISPLAYS
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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AZ DISPLAYS
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
ATM0240B20(AZ DISPLAYS) TFT MODULE
7. MECHANICAL DRAWING
VER1.0
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AZ DISPLAYS
ATM0240B20(AZ DISPLAYS) TFT MODULE
VER1.0
8. INSPECTION SPECIFICATION
1.
SCOPE SPECIFICATIONS CONTAIN
1.1 DISPLAY QUALITY EVALUATION
1.2 MECHANICS SPECIFICATION
SAMPLING PLAN
2.
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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AZ DISPLAYS
ATM0240B20(AZ DISPLAYS) TFT MODULE
VER1.0
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AZ DISPLAYS
ATM0240B20(AZ DISPLAYS) TFT MODULE
VER1.0
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AZ DISPLAYS
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