AZ DISPLAYS

AZ DISPLAYS
SPECIFICATIONS FOR
LIQUID CRYSTAL DISPLAY
CUSTOMER APPROVAL
※ PART NO. :
ATM0280D7-T (AZ DISPLAYS) VER1.0
APPROVAL
COMPANY
CHOP
CUSTOMER
COMMENTS
AZ DISPLAYS ENGINEERING APPROVAL
DESIGNED BY
CHECKED BY
APPROVED BY
ATM0280D7-T(AZ DISPLAYS) TFT MODUL VER1.0
REVISION RECORD
REVISION
VER1.0
AZ DISPLAYS
REVISION DATE
27/07-2011
PAGE
CONTENTS
FIRST ISSUE
2
ATM0280D7-T(AZ DISPLAYS) TFT MODUL VER1.0
CONTENTS
1. LCD MODULE PHYSICAL DATA …………………………………...4
2. OUTLINE DIMENSIONS ………………………………………………5
3. BLOCK DIAGRAM …………………………………………………….6
4. ABSOLUTE MAXIMUM RATINGS ………………………………….6
5. ELECTRICAL CHARACTERISTICS ………………………………..7
6. ELECTRO-OPTICAL CHARACTERISTICS ……………………….8
7. INTERFACE PIN CONNECTIONS ………………………………….11
8. INITIALIZED CODE ………………………………………………….11
9. SPECIFICATION OF QUALITY ASSURANCE …………………...12
10. RELIABILITY ………………………………………………………….18
11. USING LCD MODULES ………………………………………………19
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ATM0280D7-T(AZ DISPLAYS) TFT MODUL VER1.0
1 LCD MODULE PHYSICAL DATA
1.1
General Description
Display Type
TFT/Transmissive
Viewing Direction
6 o’clock
Connection Type
COG + FPC
Operation temperature
-20℃ ~70℃
Storage temperature
-30℃ ~80℃
Driving IC
MPU interface
ILI9338
16-bit Parallel 8080 interface
Table 1.
1.2
Mechanical Description
Item
Standard Value
Unit
2.8
inch
Number of dots
240 RGB x320 dots
-
LCM dimension
50.00 (W ) x 69.20(H) x3.80(T)
mm
Active area
43.20(W ) x 57.60(H)
mm
Dot size
0.180(W) x 0.180(H)
mm
TBD
g
Screen size
Approx. weight
Backlight
4chip white LED in Parallel
Table 2.
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ATM0280D7-T(AZ DISPLAYS) TFT MODUL VER1.0
2 OUTLINE DIMENSIONS
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ATM0280D7-T(AZ DISPLAYS) TFT MODUL VER1.0
3 BLOCK DIAGRAM
Figure 2.
4 ABSOLUTE MAXIMUM RATINGS
ITEM
SYMBOL
CONDITION
Power Supply Voltage(1)
VDD
Power Supply Voltage(2)
STANDARD VALUE
UNIT
Ta= +25℃
MIN
-0.3
TYP
-
MAX
4.6
Iovcc
Ta= +25℃
-0.3
-
4.6
V
Power Supply Voltage(3)
Vci
Ta= +25℃
-0.3
-
4.6
V
Input Voltage
Vin
Ta=+25℃
-0.3
-
Vcc+0.3
V
Operating Temperature
Top
---
- 20
-
+70
℃
Storage Temperature
Tst
- 30
-
+80
℃
--Table 3.
V
NOTE:
(1). If the module is used above these absolute maximum ratings. It may become permanently
damaged. Using the module within the following electrical characteristic conditions are also exceeded,
the module will malfunction and cause poor reliability
(2). LCM should be grounded during handing LCM.
(3). VDD>GND must be maintained.
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ATM0280D7-T(AZ DISPLAYS) TFT MODUL VER1.0
5 ELECTRICAL CHARACTERISTICS
5.1 DC Characteristics
ITEM
Power Supply Voltage for Logic
SYMBOL
CONDITIONS
STANDARD VALUE
UNIT
MIN
TYP
MAX
VDD-GND
Ta= +25℃
2.8
3.0
3.3
V
IOVCC
Ta= +25℃
1.8
3.0
3.3
V
Input High Voltage for LCD
VIH
－
0.8Iovcc
－
Iovcc
V
Input Low Voltage for LCD
VIL
－
Vss
－
0.2 Iovcc
V
Output High Voltage for LCD
VOH
－
0.8Iovcc
－
Iovcc
V
Output Low Voltage for LCD
VOL
－
Vss
－
0.2 Iovcc
V
Power Supply Voltage for I/O circuit
Table 4.
5.2 Back-Light unit
PARAMETER
SYMBOL
STANDARD VALUE
REMARK
UNIT
MIN
TYP
MAX
FORWARD VOLTAGE
VF
If =80mA
3.0
--
3.4
V
LUMINOUS INTENSITY (including LCD)
Iv
If =80mA
160
--
--
cd/m2
Iv-m
(min/max)/100
-
80
-
%
0.260
-
0.310
0.260
-
0.310
LUMINOUS TOLERANCE
CHROMATICITY COORDINATES
X
If =80mA
Y
OPERATING TEMPERATURE
-20℃ ~ 70℃
STORAGE TEMPERATURE
-30℃ ~ 80℃
Table 5.
5.3 AC Characteristics
Refer to ILI9338 data sheet.
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ATM0280D7-T(AZ DISPLAYS) TFT MODUL VER1.0
6
ELECTRO-OPTICAL CHARACTERISTICS
Paramete
Symbol
Threshold voltage
Viewing
Angle
range
Horizontal
Vertical
Min
Typ
Max
Unit
Vsat
2.7
3.3
3.8
V
Vth
1.2
1.5
1.8
V
Left(9’)
-
65
-
Deg
-
65
-
Deg
-
55
-
Deg
-
50
-
Deg
Right(3’)
Up(12’)
Condition
CR > 10
Down(6’)
Remark
Note 1
Not 2
Contrast ratio
C/R
Ө = 0°
-
350
-
Not 3
Transmittance
T(%)
Ө = 0°
-
5.5
-
Not 4
0.302
0.322
0.342
0.323
0.343
0.362
xR
0.609
0.629
0.649
yR
0.321
0.341
0.361
White Chromaticity
Red
Reproduction
Of color
Green
Blue
Response Time
xw
yw
xG
yG
Ө = 0°
Ө= 0°
0.291
0.311
0.331
0.549
0.569
0.589
xB
0.121
0.141
0.161
yB
0.094
0.114
0.134
Tr+Tf
Ө= 0°
30
Not 5
*Color
Filter
Glass
smec
Not 6
Table 6.
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ATM0280D7-T(AZ DISPLAYS) TFT MODUL VER1.0
Note :
1. The definition of Vth & Vsat
Figure 3. The definition of Vth & Vsat
2.Viewing angle is the angle at which the contrast ratio is greater than 10. The viewing are determined for
the horizontal or 3, 9 o’clock direction and the vertical or 6, 12 o’clock direction with respect to the
optical axis which is normal to the LCD surface.
Figure 4.Definition of viewing angle
3. Contrast measurements shall be made at viewing angle of Ө= 0° and at the center of the LCD surface.
Luminance shall be measured with all pixels in the view field set first to white, then to the dark (black)
state.
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ATM0280D7-T(AZ DISPLAYS) TFT MODUL VER1.0
CR =
Luminance when displaying a white raster
Luminance when displaying a black raster
4. Transmittance is the value with Polarizer.
5. The color chromaticity coordinates specified in Table 6. shall be calculated from the spectral data
measured with all pixels first in red, green, blue and white. Measurements shall be made at the center of
the C/F. Measurement condition is C - light source & Halogen Lamp.
Figure 5 Optical test equipment.
6. The electro-optical response time measurements shall be made as FIGURE 3 shown in Appendix by
switching the “data” input signal ON and OFF. The times needed for the luminance to change from 10%
to 90% is Tr, and 90% to 10% is Td
Figure 6.Definition of response time: Tr+Tf
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ATM0280D7-T(AZ DISPLAYS) TFT MODUL VER1.0
7 INTERFACE PIN CONNECTIONS
PIN NO.
1~4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23~30
31
32
33
34
35~37
SYMBOL
DB0~DB3
GND
VDD
CS
RS
WR
RD
LCM_ID
X+
Y+
XYLED_A
LED_K1
LED_K2
LED_K3
LED_K4
NC
DB4
DB8~DB15
RESET
VDD
IOVCC
GND
DB5~DB7
FUNCTION DESCRIPTIONS
Data bus
Ground
Power supply for logic circuit
Chip select
Register select signal
Writer operation signal
Read operation signal
No connection
Touch panel
Power supply for backlight
The backlight ground
No connection
Data bus
Data bus
Reset signal
Power supply for analog circuit
Power supply for I/O logic circuit
Ground
Data bus
Table 6.
8 INITIALIZED CODE
Please contact us for details.
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ATM0280D7-T(AZ DISPLAYS) TFT MODUL VER1.0
9 SPECIFICATION OF QUALITY ASSURANCE
9.1
Summary
The customer should check and accept the products of ZET within one month after reception.
This standard for Quality Assurance should affirm the quality of LCD products to supply to purchaser
by ZET COMPANY LIMITED. Entire process is controlled according to QS9000.
9.2
Standard for quality test
(1) Inspection
Before delivering, the supplier should take the following tests, and affirm the quality of product.
(2) Electro-Optical Characteristics
According to the individual specification to test the product.
(3) Test of Appearance Characteristics:
According to the individual specification to test the product.
(4)Test of Reliability Characteristics
According to the definition of reliability on specification for test product.
(5) Delivery Test
Before delivering, the supplier should take the delivery test
(6)Sampling Method: GB/T2828.1-2003, Level II
(7) The defects classify of AQL as following
Major defect: AQL=0.65
Minor defect: AQL=1.5
9.3
Nonconforming Analysis & Deal With Manners
☆Nonconforming Analysis
(1) Purchaser should supply the detail data of nonconforming sample and the non-suitable state.
(2) After accepting the detail data from purchaser ,the analysis of nonconforming should be
finished in two weeks.
(3) If supplier can not finish analysis on time ,must announce purchaser before two weeks.
☆Disposition of nonconforming
(1) If find any supplier defect during assembly line, supplier must change the good
product for every defect after recognition.
(2) Both supplier and customer should analysis the reason and discuss the disposition of
nonconforming when the reason of nonconforming is not sure.
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ATM0280D7-T(AZ DISPLAYS) TFT MODUL VER1.0
9.4
Agreement items.
Both sides should discuss together when the following problems happen:
(1) There is any problem of standard of quality assurance ,and both sides think that must be
modifier.
(2) There is any argument item which does not record in the quality assurance.
(3) Any other special problem.
9.5
Standard of the Product Appearance Test
9.5.1
Manner of appearance test
(1) The test must be under 20W*2 or 40W fluorescent light ,and the distance of view must be at
30±5 cm.
(2) When test the model of Transmissive product must add the reflective plate.
(3) The test direction is base on about around 30 degree(within θ range)of vertical line.
Vertical line
Eyes
Figure 7.
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ATM0280D7-T(AZ DISPLAYS) TFT MODUL VER1.0
(4) Definition of Area:
A Area: Active area
B Area: Viewing area
C Area: Out of viewing area
D Area: Seal area
C Area
B Area
A Area
D Area
Figure 8.
9.5.2
Basic principle:
(1) It will accord to the AQL when the standard can not be described.
(2) The sample of the lowest acceptable quality level must be discussed by both supplier and
customer when any dispute happened.
(3) Must add new item on time when it is necessary.
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ATM0280D7-T(AZ DISPLAYS) TFT MODUL VER1.0
9.6
Inspection specification
NO
01
Item
Electrical Testing
Criterion
AQL
1.1 Missing vertical, horizontal segment, segment
contrast defect.
1.2 Missing character, dot or icon.
1.3 Display malfunction.
1.4 No function or no display.
1.5 Current consumption exceeds product specifications.
1.6 LCD viewing angle defect.
1.7 Contrast defect
0.65
2.1Round type: As following drawing
φ=(x+y)/2
X
●
Size
LCD black spots,
white spots, color
02
spots,
contamination,
scratches
(display/non-displa
y)
φ≦0.20
0.20<φ≦
0.25
0.25
≦φ≦0.3
0
0.30<φ
Total
2.2
Y
Acceptable QTY
A.A
Ignore
Remark
V.A
Ignore
2
3
1
2
0
3
0
5
No more
than two
spots
within
5mm
1.5
Line Type: (As following drawing)
W
L
Length
Width
--L≦2.5
W≦0.03
0.03<
Acceptable QTY
V.A
A.A
Ignore
Ignore
2
3
W≦0.05
L≦1.5
0.05<
---
0.08< W
W≦0.08
AZ DISPLAYS
Remark
No
more than
two lines
within 5mm
0
0
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ATM0280D7-T(AZ DISPLAYS) TFT MODUL VER1.0
If bubbles are visible, judge using black spot specification, not
easy to find, must check in specify direction.
03
Polarizer bubbles
Ignore
Size
φ≦0.30
0.30<φ≦0.60
Acceptable QTY
A. A
V. A
Ignore
Ignore
2
3
0
0
1.5
Symbols:
a: Chip length b: Chip width c: Chip thickness
t: Glass thickness
4.1 ITO electrode
4.2 General ,corner portion
04
Chipped glass
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1.5
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ATM0280D7-T(AZ DISPLAYS) TFT MODUL VER1.0
05
06
Cracked glass
Backlight elements
The LCD with extensive crack is not acceptable.
0.65
6.1 Illumination source flickers when lit.
0.65
6.2 Spots or scratches that appear when lit must be judged
1.5
using LCD spot, lines and contamination standards.
6.3 Backlight doesn’t light or color is wrong
0.65
7.1 No unmelted solder paste may be present on the PCB.
1.5
7.2 No cold solder joints, missing solder connections, oxidation
07
Soldering
or icicle.
1.5
7.3 No residue or solder balls on PCB.
7.4 No short circuits in components on PCB.
1.5
0.65
8.1 No oxidation, contamination, curves or, bends on interface
1.5
pin (OLB) of TCP.
8.2 No cracks on interface pin(OLB) of TCP
0.65
8.3 NO contamination, solder residue or solder balls on
1.5
product.
8.4 The IC on the TCP may not be damaged, circuits.
0.65
8.5 The residual rosin or tin oil of soldering (component or chip 1.5
component) is not burned into brown or black color. 8.6
08
General appearance
Sealant on top of the ITO circuit has not hardened
1.5
8.7 Pin type must match type in specification sheet.
0.65
8.8 LCD pin loose or missing pins.
0.65
8.9 Product packaging must the same as specified on packaging 0.65
specification sheet.
8.10 Product dimension and structure must conform to product
0.65
specification sheet.
Table 7.
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ATM0280D7-T(AZ DISPLAYS) TFT MODUL VER1.0
10 RELIABILITY
NO..
1
2
3
4
5
6
Test Item
High
temperature
storage
Low
temperature
storage
High
temperature
operation
Low
temperature
operation
High
temperature
/humidity
storage
High
temperature
/humidity
operation
7
Temperature
Cycle
8
Vibration test
9
Fall test
10
Description
Test Condition
Endurance test applying the high storage
temperature for a long time
70℃,240 H
Endurance test applying the low storage
temperature for a long time
-20℃,240H
Endurance test applying the electric stress
under high temperature for a long time
60℃,96H
Endurance test applying the electric stress
under low temperature for a long time
-10℃,96H
Endurance test applying the high temperature
and high humidity storage for a long time
50℃，90% R.H 240H
Endurance test applying electric stress under
high temperature and high humidity for a long
time
40℃ 90% R.H 96H
Endurance test applying the low and high
temperature cycle -20℃ → 25℃ → 70℃
→25℃ 30min 5min 30min 5min one cycle
-20℃/70℃ 10 cycles
Endurance test applying the vibration during
transportation and using
10Hz~50Hz Swing:0.75mm
time:30min
Endurance test dropping the LCM from a high
place
600mm height
Static
Endurance test applying static electric stress to Contact discharge: 4KV
electricity test terminal
Air discharge: 8KV
Table 8.
NOTE: TEST CONDITION
(1) Temperature and humidity: If no specification, temp. set at 25±2°C, humidity set at 60±5%RH.
(2) Operating state: Samples subject to the test shall be in “operating” condition.
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ATM0280D7-T(AZ DISPLAYS) TFT MODUL VER1.0
11 USING LCD MODULES
11.1 LIQUID CRYSTAL DISPLAY MODULES
LCD is composed of glass and polarizer. Pay attention to the following items when handling.
(1) Please keep the temperature within specified range for use and storage. Polarization degradation,
bubble generation or polarizer peel-off may occur with high temperature and high humidity.
(2) Do not touch, push or rub the exposed polarizers with anything harder than an HB pencil lead
(glass, tweezers, etc.).
(3) N-hexane is recommended for cleaning the adhesives used to attach front/rear polarizers and
reflectors made of organic substances which will be damaged by chemicals such as acetone,
toluene, ethanol and isopropylalcohol.
(4) When the display surface becomes dusty, wipe gently with absorbent cotton or other soft material
like chamois soaked in petroleum benzin. Do not scrub hard to avoid damaging the display
surface.
(5) Wipe off saliva or water drops immediately, contact with water over a long period of time may
cause deformation or color fading.
(6) Avoid contacting oil and fats.
(7) Condensation on the surface and contact with terminals due to cold will damage, stain or dirty
the polarizers. After products are tested at low temperature they must be warmed up in a container
before coming is contacting with room temperature air.
(8) Do not put or attach anything on the display area to avoid leaving marks on.
(9) Do not touch the display with bare hands. This will stain the display area and degradate
insulation between terminals (some cosmetics are determinated to the polarizers).
(10) As glass is fragile. It tends to become or chipped during handling especially on the edges.
Please avoid dropping or rising.
11.2 PRECAUTION FOR HANDING LCD MODULES
Since LCM has been assembled and adjusted with a high degree of precision, avoid applying
excessive shocks to the module or making any alterations or modifications to it.
(1) Do not alter, modify or change the the shape of the tab on the metal frame.
(2) Do not make extra holes on the printed circuit board, modify its shape or change the positions of
components to be attached.
(3) Do not damage or modify the pattern writing on the printed circuit board.
(4) Absolutely do not modify the zebra rubber strip (conductive rubber) or heat seal connector.
(5) Except for soldering the interface, do not make any alterations or modifications with a soldering
iron.
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ATM0280D7-T(AZ DISPLAYS) TFT MODUL VER1.0
(6) Do not drop, bend or twist LCM.
(7) In order to avoid the cracking of the FPC,you should to pay attention to the area of
FPC(R50mm) where the FPC was bent .the edge of
coverlay;the area of surface of
Ni-Au plating,the area of soldering land,the area of through hole.
11.3 ELECTRO-STATIC DISCHARGE CONTROL
Since this module uses a CMOS LSI, the same careful attention should be paid to electrostatic
discharge as for an ordinary CMOS IC.
(1) Make certain that you are grounded when handing LCM.
(2) Before remove LCM from its packing case or incorporating it into a set, be sure the module and
your body have the same electric potential.
(3) When soldering the terminal of LCM, make certain the AC power source for the soldering iron
does not leak.
(4) When using an electric screwdriver to attach LCM, the screwdriver should be of ground
potentiality to minimize as much as possible any transmission of electromagnetic waves produced
sparks coming from the commutator of the motor.
(5) As far as possible make the electric potential of your work clothes and that of the work bench the
ground potential.
(6) To reduce the generation of static electricity be careful that the air in the work is not too
dried. A relative humidity of 0%-60% is recommended.
11.4 PRECAUTIONS FOR OPERATION
(1) Viewing angle varies with the change of liquid crystal driving voltage (VO). Adjust VO to show
the best contrast.
(2) Driving the LCD in the voltage above the limit shortens its life.
(3) Response time is greatly delayed at temperature below the operating temperature range. However,
this does not mean the LCD will be out of the order. It will recover when it returns to the specified
temperature range.
(4) If the display area is pushed hard during operation, the display will become abnormal. However,
it will return to normal if it is turned off and then back on.
(5) Condensation on terminals can cause an electrochemical reaction disrupting the terminal circuit.
Therefore, it must be used under the relative condition of 40°C , 50% RH.
(6) When turning the power on, input each signal after the positive/negative voltage becomes stable.
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ATM0280D7-T(AZ DISPLAYS) TFT MODUL VER1.0
Figure 9.
11.5 STORAGE
When storing LCDs as spares for some years, the following precaution are necessary.
(1) Store them in a sealed polyethylene bag. If properly sealed, there is no need for dessicant.
(2) Store them in a dark place. Do not expose to sunlight or fluorescent light, keep the temperature
between 0°C and 35°C.
(3) The polarizer surface should not come in contact with any other objects. (We advise you to store
them in the container in which they were shipped.)
(4) Environmental conditions :
- Do not leave them for more than 160hrs. at 70°C.
- Should not be left for more than 48hrs. at -20°C.
11.6 SAFETY
(1) It is recommended to crush damaged or unnecessary LCDs into pieces and wash them off with
solvents such as acetone and ethanol, which should later be burned.
(2) If any liquid leakes out of a damaged glass cell and comes in contact with the hands, wash off
thoroughly with soap and ater.
11.7 LIMITED WARRANTY
Unless agreed between ZET and customer, ZET will replace or repair any of its LCD modules
which are found to be functionally defective when inspected in accordance with ZET LCD
modules acceptance standards (copies available upon request) for a period of one year from date of
shipments. Cosmetic/visual defects must be returned to ZET within 90 days of shipment.
Confirmation of such date shall be based on freight documents. The warranty liability of ZET
limited to repair and/or replacement on the terms set forth above. ZET will not be responsible for
any subsequent or consequential events.
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ATM0280D7-T(AZ DISPLAYS) TFT MODUL VER1.0
11.8 RETURN LCM UNDER WARRANTY
No warranty can be granted if the precautions stated above have been disregarded. The typical
examples of violations are :
- Broken LCD glass.
- Circuit modified in any way, including addition of components.
Module repairs will be invoiced to the customer upon mutual agreement. Modules must be
returned with sufficient description of the failures or defects. Any connectors or cable installed by
the customer must be removed completely without damaging the PCB’s eyelet, conductors and
terminals.
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