ZETTLER DISPLAYSSPECIFICATIONS FORLIQUID CRYSTAL DISPLAYCUSTOMER APPROVAL※ PART NO. : AQM1248A-FLW-FBW(ZETTLER DISPLAYS) VER1.0
COMPANYCHOPAPPROVALCUSTOMERCOMMENTSZETTLER DISPLAYS ENGINEERING APPROVALDESIGNED BYCHECKED BYAPPROVED BY

Jacky LiLH

GZH

AQM1248A-FLW-FBW(ZETTLER DISPLAYS) GRAPHIC MODULE VER1.0

REVISION RECORDREVISIONREVISION DATEVER1.0

2015-05-19

ZETTLER DISPLAYSPAGECONTENTSFIRST ISSUE1AQM1248A-FLW-FBW(ZETTLER DISPLAYS) GRAPHIC MODULE VER1.0※ CONTENTS
1.0 GENERAL SPECS
2.0 ABSOLUTE MAXIMUM RATINGS
3.0 ELECTRICAL CHARACTERISTICS
4.0 OPTICAL CHARACTERISTICS
5.0 BLOCK DIAGRAM
6.0 PIN ASSIGNMENT
7.0 POWER SUPPLY
8.0 TIMING CHARACTERISTICS
9.0 MECHANICAL DIAGRAM
10.0 RELIABILITY TEST
11.0 APPEARANCE CRITERIA
12.0 PRECAUTION FOR USING LCM
13.0 PACKAGING DESCRIPTIONZETTLER DISPLAYS

2AQM1248A-FLW-FBW(ZETTLER DISPLAYS) GRAPHIC MODULE VER1.0

1.0 GENERAL SPECS
1. Display Format

128*48Dots

2. Power Supply

3.0V

3. Overall Module Size

36.0mm(W) x 22.0mm(H) x5.0mm(D)4. Viewing Area(W*H)

32.0mm(W) x 11.0mm(H)5. Dot Size (W*H)

0.20mm(W) x 0.17mm(H)6. Dot Pitch (W*H)

0.22mm(W) x 0.19mm(H)7. Viewing Direction

6:00 O’Clock

8. Driving Method

1/49Duty,1/6Bias

9. Controller IC

ST7565R

10. Display Mode

FSTN/Positive/Transflecitve

11. Backlight Options

White LED/Side

12. Operating temperature-10ºC ~50ºC

13. Storage temperature-20ºC ~ 60ºC

14. RoHS

RoHS compliant

2.0 ABSOLUTE MAXIMUM RATINGSItemSymbolMin

TypMaxUnit

Operating temperature

Top-10-50ºC

Storage temperatureTst-20-60ºC

Input voltage

Vin

Vss-0.3--

Vdd+0.3

V

Supply voltage for logic

Vdd- Vss-0.3

-

3.6

V

Supply voltage for LCD driving

V0-Vss-0.3

-13.5

V

3.0 ELECTRICAL CHARACTERISTICS
3.1 Electrical Characteristics Of LCM
Item

SymbolCondition

Min

Typ

Max

Unit

Power Supply Voltage

Vdd

25ºC

--

3.0--

V

Power Supply Current

Idd

Vdd=3.0V----2mA

Input voltage (high)Vih0.8Vdd

--Vdd

V

Input voltage (low)VilPins:(RS,/WR,/RD,/RST,/CS,D0-D7),

Vss--

0.2VddV-20ºC------25ºC

7.3

7.5

7.7

70ºC

------

Recommended
Driving VoltageLC

ZETTLER DISPLAYS

V0-VssV

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3.2 The Characteristics Of LED Backlight
3.2.1 Electrical-Optical Characteristics Of LED Backlight (Ta=25ºC)
Item

SymbolConditionMin

TypMaxUnit

Forward Voltage(1)Vf

If=45mA

2.9

3.1

3.3

V

ReverseVoltageVr-----

5V(2,3)

Lv

If=45mA

200--cd/m²UniformityΔ(Lvmin/Lvmax)%

70%-----Peak wave length

λp-------nmx

If=45mA

0.26

--

0.32

umy

If=45mA

0.26--0.32um

Luminance

Chroma coordinate

NOTE:(1) Forward voltage means voltage applied directly to the LED, please refer to the backlight diagram.
(2)Luminance means the backlight brightness without LCD.
(3)The luminance is the average value of 5 points, The measurement instrument is BM-7 luminancecolorimeter. The diameter of aperture is Φ5mm，3.2.2 Backlight Control Circuit FOR LCM（1x3=3 pcs LED）

3.2.3 LED Characteristics Curves（for single led）
2.Forward current VS Forward Voltage

1.Forward current VS.Ambient Temperature30

Forward Current (mA）25)
Am(tnerruCdrawroF

20151050-30

252015105002550 80
Ambient Temperature

ZETTLER DISPLAYS

100

423
Forward Voltage

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AQM1248A-FLW-FBW(ZETTLER DISPLAYS) GRAPHIC MODULE VER1.0

4.0 OPTICAL CHARACTERISTICS (Ta=25ºC)
ItemSymbolConditionMinTypMaxUnit

Viewing angle (Left - right)

θ2Cr ≥ 2.0-35-35deg

Viewing angle (Up-down)θ1Cr ≥ 2.0-25-40deg

Contrast Ratio

Crθ1=0°, θ2=0°-3-

Response time (rise)Trθ1=0°, θ2=0°-180300

ms

Response time (fall)Tfθ1=0°, θ2=0°-150250ms(1). Definition of Optical Response Time(2). Definition of Contrast Ratio(3). Definition of Viewing Angle θ2 and θ1

ZETTLER DISPLAYS

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AQM1248A-FLW-FBW(ZETTLER DISPLAYS) GRAPHIC MODULE VER1.05.0 BLOCK DIAGRAMZETTLER DISPLAYS

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AQM1248A-FLW-FBW(ZETTLER DISPLAYS) GRAPHIC MODULE VER1.0

6.0 PIN ASSIGNMENTPin No.

SymbolFunction

1/CS1B

Chip select signal , “L” active

2/RST“L” active ,reset signal

3RS

4SCL

SPI Clock input

5SDA

SPI data input

6

VDD

Power supply (3V)7

VSSGround (0V)

8

VOUT

DC/DC voltage convert

9

C1-(CAP1N)

DC/DC voltage convert

10

C1+(CAP1P)

DC/DC voltage convert

11

C2+(CAP1P)

DC/DC voltage convert

12

C2-(CAP2N)

DC/DC voltage convert

13

V1Power supply for the liquid crystal drive

14V2Power supply for the liquid crystal drive

15

V3Power supply for the liquid crystal drive

16

V4Power supply for the liquid crystal drive

17V0Power supply for the liquid crystal drive

ZETTLER DISPLAYS“H”:display data;”L”:control data

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AQM1248A-FLW-FBW(ZETTLER DISPLAYS) GRAPHIC MODULE VER1.0

7.0 POWER SUPPLYZETTLER DISPLAYS

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AQM1248A-FLW-FBW(ZETTLER DISPLAYS) GRAPHIC MODULE VER1.0

8.0 TIMING CHARACTERISTICS
8.0.1: The 4-line SPI Interface

ZETTLER DISPLAYS

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ZETTLER DISPLAYS

ABCDE

F

11172A

2K

128*48 DOTS

3314REARFRONT45TOLERANCE:±0.3mm

5146A

1777Display Pattern(10:1)

K

S&AS-GD12848BLWYYMM

6SDA
SCL
RSRSTCS1B

6543218PIN NO. SYMBOL

VSS
VDD

7C1VOUT
8C1+
9C2+V11310V21411V315C2-V41612V017YYMM
YY year
MM month

8A

B

C

DE

F

AQM1248A-FLW-FBW(ZETTLER DISPLAYS) GRAPHIC MODULE VER1.09.0 MECHANICAL DIAGRAM

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10.0 RELIABILITY TEST
Test ItemNO
1High temperaturestorage2

Low temperaturestorage

3

High temperature
Operation

4

Environmental
Test

5

Low temperature
OperationHightemperature/HighHumidity Storage

Temperature
Cycle

6

Description
Applying the high storage
temperature Under normal humidity fora long time Check normal performance
Applying the low storage temperature
Under normal humidity for a long time
Check normal performance
Apply the electric stress(Voltage andcurrent) Under high temperature for along time
Apply the electric stress Under low
temperature for a long time
Apply high temperature and highhumidity storage for a long time
Apply the low and high temperature
cycle-40ºC＜＞25ºC＜＞80ºC ＜＞25ºC
30min
10min 30min 10min

Test Condition

Remark

60 ºC
96hrs
-20ºC
96hrs
50 ºC
96hrs

Note1

-10ºC
96hrs

Note1
Note2

90% RH
40ºC
96hrs

Note2

-20ºC/60ºC
10 cycle

1 cycleCheck normal performance

7Mechanical
Test

89

Vibration
test(Packagestate)

Applying vibration to product checknormal performance

Shocktest(packagestate)

Applying shock to product checknormal performance

Freq:10~55~10Hz
Amplitude:0.75mm
1cycle time:1min
X.Y.Z every
direction for 15cycles
Drop themthrough 70cm
height to strikehorizontal plane

OtherRemark
Note1:Normal operations condition (25ºC±5ºC).
Note2:Pay attention to keep dewdrops from the module during this test.

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AQM1248A-FLW-FBW(ZETTLER DISPLAYS) GRAPHIC MODULE VER1.0

11.0 APPEARANCE CRITERIA
Item

Description

Dot defects

Scratches
black dot
white dot on
the polarizer
dirty spot andbubble
between thepolarizer andglass in thedisplay area.

（black/white dot）

black/whiteline defect(straightline orcurve etc.
Line typedefects)
Chip oncornerFibres inactive area,scratches
and blackline on theglass orpolarizer.

PictureMA≤0.1

Ignored0.1＜φ≤0.20

2

J＞50.20＜φ≤0.25

1

J＞10

MI

J:the distance
between dot and dot.

J:the distance
between dot and dot.

Y:width of chip
X:length of chip
L:width of sidestep
J:distance between
electrode and thefarthermost edge.
Crack

Y:width of crack
X:length of crack
L:width of sidestep
T:deepth of crack
Z:thickness of single
glass

0.25＜φ≤0.30

00φ>0.30W≤0.01

IgnoredW≤0.02 L≤52J＞5W≤0.03 L≤41J＞10W≤0.04 L≤30J＞10W≤0.05 L≤20Y≤1/2L, X≤1

IgnoredY≤1/2L, X≤22

Y≤1/2L, X≤31

Y≤1/2L, X≤1/3J0J≤3

Y≤1/2L, X≤2/3J0J≤3

Y≤1/5L X≤5≤1/2TZ

IgnoredY≤1/4L X≤5≤1/2TZ

2

Y≤1/3L X≤5 Z≤
1/2T

1Y≤1/3L X≤10 Z≤1/2T0Y≤1/3L X≤15 Z≤1/2T0Cracks in anyarea

Inspection
MethodVisual/contrast
byInspection
standard
film●sidestep onthe lower
glass

Crack

Specification

Visual/contrast
byInspection
standard
film

●

●

Visual/contrast
byInspection
standard
film

Visual/contrast
byInspection
standard
film●

rejected

Visual●Polarizer

ZETTLER DISPLAYS≤0.8

Accepted●

Visual/12

AQM1248A-FLW-FBW(ZETTLER DISPLAYS) GRAPHIC MODULE VER1.0
be applicable forup/bottom polarizer

0.8＜L≤1.0

Rejected

1.0＜L≤1.5

Rejected

1.5＜L≤2.0

Rejected

contrast
byInspection
standard
film

Any seeable polarizer slanting orexcursion in active area will be rejected.
The polarizer edge should be even andbe line. Any indention within 1/3 ofsilkscreen line will be rejected.
Wrong direction, missing or extra,incorrect sticking for polarizer and dirty
surface(grease) on polarizer will berejected.
seeable black silkscreen line from thearond can be accepted.
Refer to the drawing size requirement.

End seal

L:The distance fromthe block to edge ofglass.

Silkscreenline

ZETTLER DISPLAYSUV glue of sealon the glass
surface

Rejected

The UV glue ofseal overflow
into the activearea.

Rejected

Direction ofend seal isdifferent fromthe drawing.

Rejected

Glue capacityof end seal ＜(1/3)*L

Rejected

the height andlength of end
seal is out ofthe drawing
requirements.

Rejectedsilkscreen line
overflow into
the active area.

Rejectedsilkscreen line
deviated inactive area.

Rejected

bubble ofsilkscreen line
≥ 1/3 witdth ofsilkscreen line

Rejected

Visual/contrast
byInspection
standard
film

●

●

Visual/contrast
byInspection
standard
film

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AQM1248A-FLW-FBW(ZETTLER DISPLAYS) GRAPHIC MODULE VER1.0PINProtective
film

Rainbowbackgroudcolor

Glue on PIN：there is glue on the PIN
without pin clip will be rejected. PIN glue
solidification：PIN glue doesn't solidify
completely. The sunken or glue stain bytouching will be rejected.
PIN deflection：if deflection angle ＞±
5°，rejected；contrarily, please referto the drawing requirement. Without
continuous glue on pins will be rejected.
PIN glue stains on polarizer or inleakagepolarizer and glass, rejected.
PIN glue exceeds the up polarizer,rejected.
Missing or extra, broken pin, rejected.
PIN loosen：no permission for pin looseor drop.
ClipPIN:pin center exceeds 1/3 ITO width，rejected.
No pinglue, rejected.
UV glue
range: UV glue must be exceeded over1~1.5 pin distance from both side. if not,rejected.
PIN length and direction
must be same with the drawing
requirements.
LCD protective film can not stick on thepolarizer and the product protective film
raised ≤1/3 length or width of polarizer
from same direction of axis and its total
length should be ≤15mm . This defectcan be accepted.
rainbow is not in
active area.

Accepted

Rainbow inactive area.

Rejected

with obvious
discoloration
and unevencolor.

Rejected

There areobvious different
backgroundcolor from thesame productlot.

Rejected

Visual/contrast
byInspection
standardfilm●

Visual●Visual/co
ntrast by
goldensample●●Visual/co
ntrast by
goldensampleNOTE:
Inspection condition:
Viewing distance for cosmetic inspection is 30cm with bare eyes, and under an environment of 800
lux(20W*2---40W) light intensity, all directions for inspecting the sample should be within 45° against
perpendicular

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AQM1248A-FLW-FBW(ZETTLER DISPLAYS) GRAPHIC MODULE VER1.0

12.0 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 itssurface. 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 Liquidstate 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 stillclean 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 latchup of driver 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 notmake 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 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
Ware 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 theelectrostatic earth (electrostatic earth: 1x108 ohm).
d) Humidity
Proper humidity helps in reducing the chance of generating electrostatic charges. Humidity should be kept over50%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 : 355°C ± 10°C

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AQM1248A-FLW-FBW(ZETTLER DISPLAYS) GRAPHIC MODULE VER1.0
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
The laminator (protective film) is attached on the surface of LCD panel to prevent it from scratches or stains. It shouldbe peeled 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 notpressing 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 thesegments 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 andwater. 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 intoconsideration. Thorough evaluation is needed for LCD module and inverter built into its host equipment to ensurespecified brightness.

ZETTLER DISPLAYS

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AQM1248A-FLW-FBW(ZETTLER DISPLAYS) GRAPHIC MODULE VER1.0

13.0 PRECAUTION FOR USING LCMZETTLER DISPLAYS

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