ZETTLER DISPLAYSSPECIFICATIONS FORLIQUID CRYSTAL DISPLAYCUSTOMER APPROVAL※ PART NO. : ATMD128B1(ZETTLER DISPLAYS) V1.0
APPROVALCOMPANYCHOPCUSTOMERCOMMENTSZETTLER DISPLAYS ENGINEERING APPROVALDESIGNED BYZZKCHECKED BYAPPROVED BY

ATMD128B1 (ZETTLER DISPLAYS) TFT MODULE V1.0
REVISION RECORDREVISIONREVISION DATEPAGEV1.02022-03-16--ZETTLER DISPLAYSCONTENTSFIRST ISSUE1ATMD128B1 (ZETTLER 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 DRAWING8.

PACKAGE DRAWING9.

INSPECTION SPECIFICATIONZETTLER DISPLAYS

2ATMD128B1 (ZETTLER DISPLAYS) TFT MODULE V1.0
1. GENERAL SPECIFICATIONS
ItemSpecification

1. LCD size

1.28 inch(Diagonal)

2. Driver element

a-Si TFT active matrix

3. Resolution

240x(RGB)x240

4. Display mode

Normally Black, IPS, Transmissive

5. Dot Pitch (W*H)

0.045mm(W) x 0.135mm(H)6. Pixel pitch(W*H)

0.135mm(W) x 0.135mm(H)7.

Active Area(W*H)∅32.4 mm(H)8.

Module size (W*H)

35.6mm(W) x 38.0(H) x1.55mm(D)9.

Surface treatment

Anti-glare

10. Color arrangement

RGB-stripe

11. Color

262K

12. Viewing angle (L/R/T/B)

80/80/80/80

13. Interface

4-wire SPI interface

14. LCD controller

GC9A01

15. LCM Brightness

400 cd/m2 Typ.

16. Backlight driving condition

40mA @3.0V

17. Touch panel(Coverlens)

N.A.

18. Touch controller

N.A.

19 Operation Temperature-20~70 ºC

20. Weight

3.2g

21. RoHS

RoHS compliantRemark

Note 1

Note 1: Please refer to mechanical drawing.

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3ATMD128B1 (ZETTLER DISPLAYS) TFT MODULE V1.0
2. PIN ASSIGNMENT
TFT LCD Panel Driving Section
Pin No.

Symbol123456789101112

GND
LEDK
LEDA
VDD
GND
GND
D/C/CSSCLSDA/RESET
GND

Function

GroundBacklight cathodeBacklight anodePower supply, typical 2.8V
GroundGroundData/command selectChip selectSPI clock
SPI data
Global reset pin
GroundLevel

NotePPPPPPIIIIIP

I: input, O: output, P: PowerZETTLER DISPLAYS

4ATMD128B1 (ZETTLER DISPLAYS) TFT MODULE V1.0
3. Operating Specification
3.1 ABSOLUTE MAXIMUM RATINGS
Item

SymbolValues

Unit

RemarkMin.

Max.

VCC/IOVCC

-0.3

4.6

V

Operation TemperatureTOP-2070ºC

Storage Temperature

TST-3080ºC

LED Reverse Voltage

VR-1.2

V

Each LED
Note 2

LED Forward Current

IF25mA

Each LED

Power Voltage

Note 1: The absolute maximum rating values of this product are not allowed to be exceededat 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

SymbolValues
Min.

Typ.

Max.

2.5

2.8

3.3

Unit

Operating voltage

VCC

Current logic

ICC

Input Logic High Voltage

VIH

0.7VCC--VCC

V

Input Logic Low Voltage

VIL

Vss--

0.3VCCVZETTLER DISPLAYS

5Remark

VmA

5

ATMD128B1 (ZETTLER DISPLAYS) TFT MODULE V1.0
3.3 Backlight driving conditionsItem

SymbolVoltage for LED Backlight

Values

Unit

Remark3.3

VNote 140--mA50000--HrMin.

Typ.

Max.

VL

2.7

3.0

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 =40mA.
Note 2: The “LED life time” is defined as the module brightness decrease to 50% original brightness at
Ta=25℃ and IL =40mA.

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6ATMD128B1 (ZETTLER DISPLAYS) TFT MODULE V1.0
3.4 Timing Characteristics
Display Serial Interface Timing Characteristics (4-line SPI system).

Note: Ta = 25 °C, IOVCC=1.65V to 3.3V, VCI=2.5V to 3.3V, AGND=VSS=0V

ZETTLER DISPLAYS

7ATMD128B1 (ZETTLER DISPLAYS) TFT MODULE V1.0
4.0 OPTICAL SPECIFICATIONS
Item

Viewing Angle(CR≥10)

SymbolCondition

θLΦ=180o(9 O'CLOCK)

θR

Values
Min.

Typ.

Max.

--

80--o--80--o

Φ=0 (3 O'CLOCK)

θT

Φ=90 (12 O'CLOCK)--80--

θB

Φ=270o(6 O'CLOCK)--80--

Unit

Remarkdegree

Note 1Response Time

TON + TOFF--3035msec

Note 3Contrast Ratio

CR

900

1100----

Note 40.25

0.30

0.35--

Note 20.27

0.32

0.37

--

WX
Color Chromaticity

NormalΘ=Φ=0oWYLuminance

L320400--

cd/m

Luminance Uniformity

YU70----%

Note 5Note 62

Note 6Note 7

Test Conditions:
1. IL=40mA (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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ATMD128B1 (ZETTLER 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 aremeasured 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. Risetime (TON) is the time between photo detector output intensity changed from 90% to 10%. And fall time (TOFF) is thetime between photo detector output intensity changed from 10% to 90%.

Figure 4.3 Definition of response.

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9ATMD128B1 (ZETTLER 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 eachmeasuring 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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ATMD128B1 (ZETTLER DISPLAYS) TFT MODULE V1.0
5. RELIABILITY TEST
ItemHigh temperaturestorageLow temperaturestorageHigh temperature
operation
Low temperature
operation
High temperature/Highhumidity operation
Temperature Cycle

Package vibration test

Package drop test
Electro static discharge

Test Condition Item
Ta= 80 ºC 96hrs
Ta=-30 ºC 96hrs
Ts= 70 ºC 96hrs
Ts=-20 ºC 96hrs

RemarkNote 1
Note 4Note 1
Note 4Note 2
Note 4Note 1
Note 4

90% RH 60ºC 96hrs

Note 4-10℃/30 min ~ +25℃/5 min ~ +60℃/30 minfor a total 10 cycles, Start with cold
temperature and end with high temperature.

Note 4

Random Vibration :0.015G*G/Hz from 5-200HZ, -6dB/Octave
from 200-500HZ
2 hours for each direction of X. Y. Z.
(6 hours for total)
Height:60 cm
1 corner, 3 edges, 6 surfaces± 2KV, Human Body Mode, 100pF/1500Ω

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 thedisplay 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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ATMD128B1 (ZETTLER 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 isstored 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 bycontinuous application of the M signal. Especially the power ON/OFF sequence should be kept to avoid latch-up ofdriver LSIs and DC charge up to LCD panel.
8. Mechanical Considerationsa) LCM are assembled and adjusted with a high degree of precision. Avoid excessive shocks and do not makeany 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 itspattern.
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 theelements.
f) Avoid pressing on the metal bezel, otherwise the elastomer connector could be deformed and lose contact,
resulting in missing pixels.
9. Static Electricitya) 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 electrostaticearth (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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12ATMD128B1 (ZETTLER 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 bepeeled off slowly using static eliminator.
Static eliminator should also be installed to the workbench to prevent LCD module from static charge.
10. Operationa) 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 toappear “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.

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ZETTLER DISPLAYS

32.40(LCD A.A)

12.24±0.5(12.1)

12.04.0

1211.40.35

10Single layer

P0.7*(12-1)=7.71(1.6)

1.Unspecifide tolerance:±0.3mm
2.()is for reference

34.32(POL)
37.24±0.2(LCD)
38.0±0.2(LCM)
IC

240RGB*240
ALL

1.28"TFT

RG B

32.40(LCD A.A)

34.74(POL)

35.2±0.2(LCD)

35.60±0.2(LCM)

0.13±0.03

1.55±0.15

A K

ATMD128B1 (ZETTLER DISPLAYS) TFT MODULE V1.07. MECHANICAL DRAWING

1.714ATMD128B1 (ZETTLER DISPLAYS) TFT MODULE V1.0
8. PACKAGE DRAWINGT.B.D.

ZETTLER DISPLAYS

15ATMD128B1 (ZETTLER DISPLAYS) TFT MODULE V1.0
9. INSPECTION SPECIFICATION
1. SCOPE SPECIFICATIONS CONTAIN
1.1 DISPLAY QUALITY EVALUATION
1.2 MECHANICS SPECIFICATION
2. SAMPLING PLANUNLESS THERE IS OTHER AGREEMENT, THE SAMPLING PLAN FOR INCOMING INSPECTION SHALL FOLLOWMIL-STD-105E.
2.1 LOT SIZE: QUANTITY PER SHIPMENT AS ONE LOT (DIFFERENT MODEL AS DIFFERENT LOT ).
2.2 SAMPLING TYPE: NORMAL INSPECTION, SINGLE SAMPLING.
2.3 SAMPLING LEVEL: LEVEL II.
2.4 AQL: ACCEPTABLE QUALITY LEVELMAJOR DEFECT: AQL=0.65
MINOR DEFECT: AQL=1.0
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
4.1 FUNCTION RELATED:THE FUNCTION DEFECTS OF LINE DEFECT, ABNORMAL DISPLAY, AND NO DISPLAY ARE CONSIDERED
MAJOR DEFECTS.
4.2 BRIGHT/DARK DOTS:

Note: 1:The definition of dot: The size of a defective dot over 1/2 of whole dot is regarded as one defective dot.
Bright dot: Dots appear bright and unchanged in size in which LCD panel is displaying under black pattern.
The bright dot defect must be visible through 2% ND filter
Dark dot: Dots appear dark and unchanged in size in which LCD panel is displaying under pure red, green, bluepattern.
4.3 Pixel Definition:

Note 1:
If pixel or partial sub-pixel defects exceed 50% of the affected pixel or sub-pixel area, it shall be considered as1defect.
Note 2:
There should be no distinct non-uniformity visible through 2% ND Filter within 2 sec inspection times.

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ATMD128B1 (ZETTLER DISPLAYS) TFT MODULE V1.0
4.4Visual Inspection specifications:ZETTLER DISPLAYS

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ATMD128B1 (ZETTLER DISPLAYS) TFT MODULE V1.0

Note: Extraneous substance and scratch not affecting the display of image, for instance, extraneous substance underpolarizer film but outside the display area, or scratch on metal bezel and backlight module or polarizer film outside thedisplay area, shall not be considered as defective or non-conforming.

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