ATM0280B44B

AZ DISPLAYS
SPECIFICATIONS FOR
LIQUID CRYSTAL DISPLAY
CUSTOMER APPROVAL
※ PART NO. : ATM0280B44B(AZ DISPLAYS) SPECV1.0
APPROVAL
COMPANY
CHOP
CUSTOMER
COMMENTS
AZ DISPLAYS ENGINEERING APPROVAL
DESIGNED BY
Herbert
CHECKED BY
APPROVED BY
ATM0280B44B (AZ DISPLAYS) TFT MODULE V1.0
REVISION RECORD
REVISION
REVISION DATE
VER1.0
AZ DISPLAYS
2015-11-25
PAGE
CONTENTS
FIRST ISSUE
1
ATM0280B44B (AZ DISPLAYS) TFT MODULE V1.0
※ 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.
PACKAGE DRAWING
9.
INSPECTION SPECIFICATION
AZ DISPLAYS
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ATM0280B44B (AZ DISPLAYS) TFT MODULE V1.0
1. GENERAL SPECIFICATIONS
Item
Specification
1. LCD size
2.8 inch(Diagonal)
2. Driver element
a-Si TFT active matrix
3. Resolution
240x(RGB)x320
4. Display mode
Normally white,Transmissive
5. Dot Pitch (W*H)
0.18mm(W) x 0.18mm(H)
6.
Active Area(W*H)
43.2mm(W) x 57.6mm(H)
7.
Module size (W*H)
50.0mm(W) x 69.2mm(H) x 2.7mm(D)
8.
Surface treatment
Anit-Glare
9.
Color arrangement
RGB-stripe
10. Driver IC
Remark
Note 1
ILI9341
11. MPU interface
8/16-bit Parallel 8080 interface
12. Backlight power consumption
0.248W(Typ.)
13. Panel power consumption
TBD
14. Weight
TBD
15. RoHS
RoHS compliant
Note 1: Please refer to mechanical drawing.
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ATM0280B44B (AZ DISPLAYS) TFT MODULE V1.0
2. PIN ASSIGNMENT
Pin No.
Symbol
Function
1~4
5
6
7
8
9
10
DB1~DB4
GND
VCC
CS
RS
WR
RD
11
IM0
12
13
14
15
16
17
18
19
20
21
22
23~30
31
NC
NC
NC
NC
LED_A
LED_K1
LED_K2
LED_K3
LED_K4
NC
DB5
DB10~DB17
RESET
No connection
Data bus
Data bus
Reset signal
32~33
34
35~37
VCC
GND
DB6~DB8
Power supply
Ground
Data bus
Data bus
Ground
Power supply
Chip select
Register select signal
Writer operation signal
Read operation signal
Model selection:
0: 16bit DB(15:0)
1: 8bit DB(15:8)
Level
Note
I/O
P
P
I
I
I
I
---
No connection
----
Power supply for backlight
P
P
The backlight ground
P
P
P
-I/O
I/O
I
P
P
I/O
I: input, O: output, P: Power
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ATM0280B44B (AZ DISPLAYS) TFT MODULE V1.0
3. Operating Specification
3.1 ABSOLUTE MAXIMUM RATINGS
Item
Symbol
Values
Unit
Remark
Min.
Max.
VCI/IOVCC
-0.3
4.6
V
Operation Temperature
TOP
-20
70
ºC
Storage Temperature
TST
-30
80
ºC
LED Reverse Voltage
VR
-
1.2
V
Each LED
Note 2
LED Forward Current
IF
25
mA
Each LED
Power Voltage
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.
Note 2: VR Conditions: Zener Diode 20mA
3.2 Typical Operation Conditions
Item
Symbol
Values
Unit
Min.
Typ.
Max.
VCC
2.5
2.8
3.3
V
Input Logic High Voltage
VIH
0.7IOVCC
--
IOVCC
V
Input Logic Low Voltage
VIL
Vss
--
0.3IOVCC
V
Operating voltage
AZ DISPLAYS
Remark
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ATM0280B44B (AZ DISPLAYS) TFT MODULE V1.0
3.3 Backlight driving conditions
Item
Symbol
Voltage for LED Backlight
Values
Unit
Remark
3.4
V
Note 1
60
--
mA
--
--
Hr
Min.
Typ.
Max.
VL
3.0
3.1
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 =60mA.
Note 2: The “LED life time” is defined as the module brightness decrease to 50% original brightness at
Ta=25℃ and IL =60mA.
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ATM0280B44B (AZ DISPLAYS) TFT MODULE V1.0
3.4 Timing Characteristics
Please refer to IC specification for detailed information.
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ATM0280B44B (AZ DISPLAYS) TFT MODULE V1.0
4.0 OPTICAL SPECIFICATIONS
Item
Viewing Angle
(CR≥10)
Symbol
Condition
θL
Φ=180o(9 O'CLOCK)
θR
Values
Min.
Typ.
Max.
--
45
--
o
--
45
--
o
Φ=0 (3 O'CLOCK)
θT
Φ=90 (12 O'CLOCK)
--
50
--
θB
Φ=270o(6 O'CLOCK)
--
20
--
Unit
Remark
degree
Note 1
Response Time
TON + TOFF
--
16
--
msec
Note 3
Contrast Ratio
CR
--
480
--
--
Note 4
--
0.307
--
--
Note 2
--
0.329
--
--
WX
Color Chromaticity
Luminance
Luminance Uniformity
Normal
Θ=Φ=0o
WY
L
180
240
--
cd/m
YU
75
80
--
%
Note 5
Note 6
2
Note 6
Note 7
Test Conditions:
1. VCI=3.1V, IL=60mA (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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ATM0280B44B (AZ DISPLAYS) TFT MODULE V1.0
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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ATM0280B44B (AZ DISPLAYS) TFT MODULE V1.0
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=80mA .
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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ATM0280B44B (AZ DISPLAYS) TFT MODULE V1.0
5. RELIABILITY TEST
NO..
1
2
3
4
5
6
Test Item
Description
High temperature
storage
Endurance test applying the
high storage temperature for a
long time
Low temperature Endurance test applying the
storage
low storage temperature for a
long time
High temperature Endurance test applying the
operation
electric stress under high
temperature for a long time
Low temperature Endurance test applying the
operation
electric stress under low
temperature for a long time
High temperature Endurance test applying the
/humidity storage high temperature and high
humidity storage for a long
time
High temperature Endurance test applying
/humidity operation electric stress under high
temperature and high humidity
for a long time
7
Temperature Cycle
8
Vibration test
9
Fall test
10
Static electricity
test
Endurance test applying the
low and high temperature cycle
-20℃ → 25℃ → 70℃ →25℃
30min 5min 30min 5min one
cycle
Endurance test applying the
vibration during transportation
and using
Endurance test dropping the
LCM from a high place
Endurance test applying static
electric stress to terminal
Test Condition
Remark
80℃,240 H
Note 1
Note 4
-30℃,240H
Note 1
Note 4
70℃,96H
Note 2
Note 4
-20℃,96H
Note 1
Note 4
50℃，90% R.H
240H
Note 4
40℃ 90% R.H 96H
Note 4
-20℃/70℃ 10 cycles
10Hz~50Hz
Swing:0.75mm
time:30min
600mm height
Contact discharge:
±2KV~4KV Air
discharge:
±2KV~10KV
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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ATM0280B44B (AZ DISPLAYS) TFT MODULE V1.0
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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ATM0280B44B (AZ DISPLAYS) TFT MODULE V1.0
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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(3.00)
(2.00)
(1.40)
(31.80)
57.60(A.A)
60.00(UP POL.)
64.95±0.1
69.20±0.15
Conductor
3.5±0.3
(2.0)
0.3±0.05
Stiffener
5
.9
?0
4-
(4.5)
37
Component area
55
Max0.5
IF=60mA,U=3.1V(typ.)
K1
K2
K3
K4
Kapton tape
68.25
W:0.35±0.05
P0.5*36=18.0±0.1
19.0±0.1
(41.0)
0.35
4?0.
49.05±0.1
(26.61)
0.5±0.1
(15.5)
1
Remove Tape
2.70
4-0.80
3.00±0.1
0.48±0.15
K1 K3
A K2 K4
240(RGB)X320 DOTS
see detail A
50.00±0.15
46.40±0.1
45.00(UP POL.)
43.20(A.A)
(25.00)
Front
AZ DISPLAYS
Rear
(1.80)
(2.50)
(3.40)
A
1
K4 K2 A
K3 K1
Diagram of bending
FPC not attached to backlight
T=0.8MAX
Include tape&tin
37
ATM0280B44B (AZ DISPLAYS) TFT MODULE V1.0
7. MECHANICAL DRAWING
5.0±0.5
(13.6)
28.5±0.5
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ATM0280B44B (AZ DISPLAYS) TFT MODULE V1.0
8. PACKAGE DRAWING
T.B.D.
9. INSPECTION SPECIFICATION
T.B.D.
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