LB121S03
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
( V ) Preliminary Specification
(
) Final Specification
Title
12.1” SVGA TFT LCD
BUYER
SUPPLIER
MODEL
*MODEL
Suffix
LG.Philips LCD Co., Ltd.
LB121S03
TL01
*When you obtain standard approval,
please use the above model name without suffix
SIGNATURE
SIGNATURE
DATE
DATE
C. S. Kyoung / G.Manager
/
REVIEWED BY
/
S. D. Jung / Manager
PREPARED BY
/
H. Y. Park/ Project Leader
Please return 1 copy for your confirmation with
your signature and comments.
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LB121S03
Liquid Crystal Display
Product Specification
Contents
No
ITEM
Page
COVER
1
CONTENTS
2
RECORD OF REVISIONS
3
1
GENERAL DESCRIPTION
4
2
ABSOLUTE MAXIMUM RATINGS
5
3
ELECTRICAL SPECIFICATIONS
3-1
ELECTRICAL CHARACTREISTICS
6
3-2
INTERFACE CONNECTIONS
7
3-3
SIGNAL TIMING SPECIFICATIONS
9
3-4
SIGNAL TIMING WAVEFORMS
9
3-5
COLOR INPUT DATA REFERNECE
10
3-6
POWER SEQUENCE
11
4
OPTICAL SFECIFICATIONS
12
5
MECHANICAL CHARACTERISTICS
16
6
RELIABLITY
20
7
INTERNATIONAL STANDARDS
7-1
SAFETY
21
7-2
EMC
21
8
PACKING
8-1
DESIGNATION OF LOT MARK
22
8-2
PACKING FORM
22
PRECAUTIONS
23
APPENDIX. INCOMING INSPECTION STANDARD
25
9
A
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LB121S03
Liquid Crystal Display
Product Specification
RECORD OF REVISIONS
Revision No Revision Date
0.0
Ver. 0.0
Feb. 27. 2006
Page
-
Description
Note
First Draft (Preliminary)
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LB121S03
Liquid Crystal Display
Product Specification
1. General Description
The LB121S03 is a Color Active Matrix Liquid Crystal Display with an integral Cold Cathode Fluorescent
Lamp (CCFL) backlight system. The matrix employs a-Si Thin Film Transistor as the active element. It is a
transmissive type display operating in the normally white mode. This TFT-LCD has 12.1 inches diagonally
measured active display area with SVGA resolution(600 vertical by 800 horizontal pixel array). Each pixel is
divided into Red, Green and Blue sub-pixels or dots which are arranged in vertical stripes. Gray scale or the
brightness of the sub-pixel color is determined with a 6-bit gray scale signal for each dot, thus, presenting a
palette of more than 262,144 colors.
The LB121S03 has been designed to apply the interface method that enables low power, high speed, low
EMI.
The LB121S03 is intended to support applications where thin thickness, low power are critical factors and
graphic displays are important. In combination with the vertical arrangement of the sub-pixels, the
LB121S03 characteristics provide an excellent flat display for office automation products such as Notebook
PC or etc.
GND
VBL
CN2
LAMP1
Column Driver Circuit
LVDS
&
Timing
Control
Block
Row Driver Circuit
CN1
Power
Block
VBL
GND
TFT-LCD
(800 X 600)
LAMP2
CN3
General Features
Active Screen Size
12.1 inches(30.75cm) diagonal
Outline Dimension
Pixel Pitch
276(H) × 209(V) × 11(D) mm
0.3075 mm × 0.3075 mm
Pixel Format
800 horiz. By 600 vert. Pixels RGB strip arrangement
Color Depth
6-bit, 262,144 colors
Luminance, White
Power Consumption
Weight
400 cd/m2(Typ.)
6.8 Watt(Typ.)
690 g (Max.)
Display Operating Mode
Transmissive mode, normally white
Surface Treatment
Anti-glare treatment
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LB121S03
Liquid Crystal Display
Product Specification
2. Absolute Maximum Ratings
The following are maximum values which, if exceeded, may cause faulty operation or damage to the unit.
Table 1. ABSOLUTE MAXIMUM RATINGS
Parameter
Values
Symbol
Min
Max
Units
Notes
Power Input Voltage
VCC
-0.3
4.0
Vdc
at 25 ± 5°C
Operating Temperature
TOP
0
70
°C
1
Storage Temperature
TST
-30
80
°C
1
Operating Ambient Humidity
HOP
10
90
%RH
1
Storage Humidity
HST
10
90
%RH
1
Note : 1. Temperature and relative humidity range are shown in the figure below.
Wet bulb temperature should be 60°C Max, and no condensation of water.
90%
60
60%
50
Storage
Wet Bulb
Temperature [C]
40%
30
20
Humidity
[(%)RH]
40
Operation
10
0
-30
0
10%
10
20
30
40
50
60
70
80
Dry Bulb Temperature [C]
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LB121S03
Liquid Crystal Display
Product Specification
3. Electrical Specifications
3-1. Electrical Characteristics
The LB121S03 requires two power inputs. One is employed to power the LCD electronics and to drive the
TFT array and liquid crystal. The second input which powers the CCFL, is typically generated by an
inverter. The inverter is an external unit to the LCD.
Table 2. ELECTRICAL CHARACTERISTICS
Parameter
Values
Symbol
Min
Typ
Unit
Notes
Max
MODULE :
Power Supply Input Voltage
VCC
3.0
3.3
3.6
Vdc
Power Supply Input Current
ICC
-
190
270
mA
1
Power Consumption
Pc
-
0.6
0.9
Watt
1
Operating Voltage
VBL
470(8.0mA)
515(6.0mA)
470(3.0mA)
VRMS
2
Operating Current
IBL
3.0
6.0
8.0
mARMS
3
Established Starting Voltage
Vs
-
-
800
VRMS
-
-
1000
VRMS
40
60
80
kHz
LAMP :
at 25 °C
at 0 °C
Operating Frequency
Discharge Stabilization Time
Power Consumption
Life Time
fBL
4
5
Ts
-
-
3
Min
6
PBL
-
6.18
7.52
Watt
7
50,000
-
-
Hrs
8
Note)
The design of the inverter must have specifications for the lamp in LCD Assembly. The performance
of the Lamp in LCM, for example life time or brightness, is extremely influenced by the characteristics of the
DC-AC inverter. So all the parameters of an inverter should be carefully designed so as not to produce too
much leakage current from high-voltage output of the inverter. When you design or order the inverter, please
make sure unwanted lighting caused by the mismatch of the lamp and the inverter(no lighting, flicker, etc)
never occurs. When you confirm it, the LCD Assembly should be operated in the same condition as installed
in your instrument.
1. VCC=3.3V, 25°C, f V (frame frequency) = 60Hz condition, whereas Mosaic pattern(Typ).,full black
pattern(Max) is displayed.
2. The variance of the voltage is ± 10%.
3. The typical operating current is for the typical surface luminance (LWH) in optical characteristics.
4. The voltage above VS should be applied to the lamps for more than 1 second for start-up. Otherwise, the
lamps may not be turned on. The used lamp current is the lamp typical current.
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LB121S03
Liquid Crystal Display
Product Specification
5. The output of the inverter must have symmetrical(negative and positive) voltage waveform and
symmetrical current waveform.(Unsymmetrical ratio is less than 10%) Please do not use the inverter
which has unsymmetrical voltage and unsymmetrical current and spike wave.
Lamp frequency may produce interference with horizontal synchronous frequency and as a result this
may cause beat on the display. Therefore lamp frequency shall be as away possible from the horizontal
synchronous frequency and from its harmonics in order to prevent interference.
6. Let’s define the brightness of the lamp after being lighted for 5 minutes as 100%.
TS is the time required for the brightness of the center of the lamp to be not less than 95%.
7. The lamp power consumption shown above does not include loss of external inverter.
The used lamp current is the lamp typical current. (2 Lamp)
8. The life time is determined as the time at which brightness of the lamp is 50% compared to that of initial
value at the typical lamp current on condition of continuous operating at 25 ± 2°C.
∗ Requirements for a system inverter design, which is intended to have a better display performance, a
better power efficiency and a more reliable lamp, are following. It shall help increase the lamp lifetime and
reduce leakage current.
a. The asymmetry rate of the inverter waveform should be less than 10%.
b. The distortion rate of the waveform should be within √2 ± 10%.
* Inverter output waveform had better be more similar to ideal sine wave.
* Asymmetry rate:
Ip
I -p
| I p – I –p | / Irms * 100%
* Distortion rate
I p (or I –p) / Irms
∗ Do not attach a conducting tape to lamp connecting wire.
If the lamp wire attach to a conducting tape, TFT-LCD Module has a low luminance and the inverter
has abnormal action. Because leakage current is occurred between lamp wire and conducting tape.
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LB121S03
Liquid Crystal Display
Product Specification
3-2. Interface Connections
This LCD employs two interface connections, a 20 pin connector is used for the module electronics interface
and the other connector is used for the integral backlight system.
The electronics interface connector is a model GT100-20P-LS-SMT manufactured by LS Cable.
Table 3. MODULE CONNECTOR PIN CONFIGURATION (CN1)
Pin
Symbol
1
VCC
Power Supply, 3.3V Typ.
Description
2
VCC
Power Supply, 3.3V Typ.
3
GND
Ground
4
GND
Ground
5
A1M
Negative LVDS differential data input
6
A1P
Positive LVDS differential data input
7
GND
Ground
8
A2M
Negative LVDS differential data input
1, Interface chips
1.1 LCD : SW, SW0602_U(LCD Controller)
9
A2P
Positive LVDS differential data input
GND
Ground
11
A3M
Negative LVDS differential data input
12
A3P
Positive LVDS differential data input
13
GND
Ground
14
CLKM
Negative LVDS differential clock input
15
CLKP
Positive LVDS differential clock input
16
GND
Ground
17
GND
Ground
18
GND
Ground
19
GND
Ground
GND
Ground
including LVDS Receiver
1.2 System : THC63LVDM63A
or Equivalent
* Pin to Pin compatible with TI LVDS
10
20
Notes
2. Connector
2.1 LCD : GT100-20P-LS-SMT, LS Cable
or Equivalent
2.2 Mating
Discrete Wire type:DF19G-20S-1C(HIROSE)
FPC type
:DF19G-20S-1F(HIROSE)
Table 4. BACKLIGHT CONNECTOR PIN CONFIGURATION (CN2, CN3)
The backlight interface connector is a model BHR-03VS-1, manufactured by JST. The mating connector
part number is SM02B(8.0)B-BHS-1-TB or equivalent.
Pin
Symbol
Description
Notes
1
HV
High Voltage (Pink color)
-
2
NC
-
-
3
LV
Low Voltage (white color)
-
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LB121S03
Liquid Crystal Display
Product Specification
3-3. Signal Timing Specifications
This is the signal timing required at the input of the User connector. All of the interface signal timing should be
satisfied with the following specifications and specifications of LVDS Tx/Rx for its proper operation.
Table 5. TIMING TABLE
ITEM
Symbol
Min
Typ
Max
Unit
MHz
DCLK
Frequency
fCLK
37.0
38.5
40.0
Hsync
Period
tHP
990
1024
1100
Width
tWH
12
64
120
Period
tVP
606
625
730
Width
tWV
1
6
24
Horizontal back porch
tHBP
30
88
120
Horizontal front porch
tHFP
30
72
80
Vertical back porch
tVBP
2
15
22
Vertical front porch
tVFP
3
4
5
Note
tCLK
Vsync
tHP
Data
Enable
tCLK
tHP
3-4. Signal Timing Waveforms
Condition : VCC =3.3V
High: 0.7VCC
Data Enable, Hsync, Vsync
Low: 0.3VCC
tCLK
DCLK
0.5 Vcc
tHP
Hsync t
WH
tHBP
tWHA
tHFP
tWVA
tVFP
Data Enable
tVP
tWV
Vsync
tVBP
Data Enable
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LB121S03
Liquid Crystal Display
Product Specification
3-5. Color Input Data Reference
The brightness of each primary color (red,green and blue) is based on the 6-bit gray scale data input for the
color ; the higher the binary input, the brighter the color. The table below provides a reference for color
versus data input.
Table 6. COLOR DATA REFERENCE
Input Color Data
RED
Color
Basic
Color
RED
GREEN
BLUE
Ver. 0.0
GREEN
MSB
BLUE
LSB MSB
R5
R4 R3
G4 G3
B4
B3
B2
B1
B0
Black
0
0
0
0
0
0 0
0
0
0
0
0 0
0
0
0
0
0
Red
1
1
1
1
1
1 0
0
0
0
0
0 0
0
0
0
0
0
Green
0
0
0
0
0
0 1
1
1
1
1
1 0
0
0
0
0
0
Blue
0
0
0
0
0
0 0
0
0
0
0
0 1
1
1
1
1
1
Cyan
0
0
0
0
0
0 1
1
1
1
1
1 1
1
1
1
1
1
Magenta
1
1
1
1
1
1 0
0
0
0
0
0 1
1
1
1
1
1
Yellow
1
1
1
1
1
1 1
1
1
1
1
1 0
0
0
0
0
0
White
1
1
1
1
1
1 1
1
1
1
1
1 1
1
1
1
1
1
RED (00)
0
0
0
0
0
0 0
0
0
0
0
0 0
0
0
0
0
0
RED (01)
0
0
0
0
0
1 0
0
0
0
0
0 0
0
0
0
0
0
…
G2 G1
LSB
G0 B5
…
R2 R1 R0 G5
LSB MSB
…
…
RED (62)
1
1
1
1
1
0 0
0
0
0
0
0 0
0
0
0
0
0
RED (63)
1
1
1
1
1
1 0
0
0
0
0
0 0
0
0
0
0
0
GREEN (00)
0
0
0
0
0
0 0
0
0
0
0
0 0
0
0
0
0
0
GREEN (01)
0
0
0
0
0
0 0
0
0
0
0
1 0
0
0
0
0
0
…
...
…
…
GREEN (62)
0
0
0
0
0
0 1
1
1
1
1
0 0
0
0
0
0
0
GREEN (63)
0
0
0
0
0
0 1
1
1
1
1
1 0
0
0
0
0
0
BLUE (00)
0
0
0
0
0
0 0
0
0
0
0
0 0
0
0
0
0
0
BLUE (01)
0
0
0
0
0
0 0
0
0
0
0
0 0
0
0
0
0
1
…
…
…
…
BLUE (62)
0
0
0
0
0
0 0
0
0
0
0
0 1
1
1
1
1
0
BLUE (63)
0
0
0
0
0
0 0
0
0
0
0
0 1
1
1
1
1
1
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LB121S03
Liquid Crystal Display
Product Specification
3-6. Power Sequence
90%
90%
Power supply for LCD ( VCC)
10%
10%
0V
T1 T2
Interface Signal (Tx)
T5 T6
T7
Valid data
10%
10%
0V
T3
T4
Power for Lamp
OFF
ON
OFF
Table 7. POWER SEQUENCE TABLE
Parameter
Value
Units
Min.
Typ.
Max.
T1
-
-
10
(ms)
T2
0
-
50
(ms)
T3
200
-
-
(ms)
T4
200
-
-
(ms)
T5
0
-
50
(ms)
T6
-
-
10
(ms)
T7
2
-
-
(s)
Note)
1. Please avoid floating state of interface signal at invalid period.
2. When the interface signal is invalid, be sure to pull down the power supply for LCD VCC to 0V.
3. Lamp power must be turn on after power supply for LCD and interface signal are valid.
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LB121S03
Liquid Crystal Display
Product Specification
4. Optical Specification
Optical characteristics are determined after the unit has been ‘ON’ and stable for approximately 30 minutes in
a dark environment at 25°C. The values specified are at an approximate distance 50cm from the LCD surface
at a viewing angle of Φ and Θ equal to 0°.
FIG. 1 presents additional information concerning the measurement equipment and method.
FIG. 1 Optical Characteristic Measurement Equipment and Method
Optical Stage(x,y)
LCD Module
Pritchard 880 or
equivalent
50cm
Table 8. OPTICAL CHARACTERISTICS
Ta=25°C, VCC=3.3V, fV=60Hz, Dclk= 38.5MHz, VIN=3.3V, IL=6.0mA
Parameter
Contrast Ratio
Surface Luminance, white
Luminance Variation
Min
Values
Typ
MAx
CR
LWH
400
300
500
400
-
δ WHITE
-
1.25
1.45
Symbol
Units
Notes
cd/m2
1
2
3
Response Time
4
Rise Time
Decay Time
TrR
TrD
-
10
15
20
30
ms
ms
RED
RX
BY
0.571
0.314
0.302
0.508
0.117
0.143
0.601
0.344
0.332
0.538
0.147
0.173
0.631
0.374
0.362
0.568
0.177
0.203
WX
0.310
0.340
0.370
WY
0.316
0.346
0.376
x axis, right(Φ=0°)
Θr
60
65
-
degree
x axis, left (Φ=180°)
y axis, up (Φ=90°)
Θl
Θu
60
45
65
50
-
degree
degree
y axis, down (Φ=270°)
Θd
55
60
-
degree
Color Coordinates
RY
GREEN
GX
GY
BLUE
WHITE
BX
Viewing Angle
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LB121S03
Liquid Crystal Display
Product Specification
Note)
1. Contrast Ratio(CR) is defined mathematically as
Surface Luminance with all white pixels
Contrast Ratio =
Surface Luminance with all black pixels
2. Surface luminance is the center point across the LCD surface 50cm from the surface with all pixels
displaying white. For more information see FIG 1.
3. The variation in surface luminance , The Panel total variation (δ WHITE) is determined by measuring LN
at each test position 1 through 5, and then dividing the maximum LN of 5 points luminance by
minimum LN of 5 points luminance. For more information see FIG 2.
δ WHITE = Maximum(L1,L2, … L5) / Minimum(L1,L2, …
L5)
4. Response time is the time required for the display to transition from white to black (rise time, TrR) and
from black to white(Decay Time, TrD). For additional information see FIG 3.
5. Viewing angle is the angle at which the contrast ratio is greater than 10. The angles are d e t e r m i n e d
for the horizontal or x axis and the vertical or y axis with respect to the z axis which is normal to the
LCD surface. For more information see FIG 4.
6. Gray scale specification
* f V=60Hz
Gray Level
L0
L7
L15
L23
L31
L39
L47
L55
L63
Ver. 0.0
Luminance [%] (Typ)
0.2
0.8
4.0
10.5
19.5
33.0
52.0
75.0
100
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LB121S03
Liquid Crystal Display
Product Specification
FIG. 2 Luminance
<measuring point for surface luminance & measuring point for luminance variation>
H
H/2
V/2
V/4
H/4
L3
V
L2
L1
Center Point
H,V : ACTIVE AREA
L4
L5
FIG. 3 Response Time
The response time is defined as the following figure and shall be measured by switching the input signal
for “black” and “white”.
TrD
TrR
%
100
90
Optical
Response
10
0
white
white
black
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LB121S03
Liquid Crystal Display
Product Specification
FIG. 4 Viewing angle
<Dimension of viewing angle range>
Normal
Eye
φ = 180 °
,
Left
Y
φ = 90 ° , Up
θ
φ
φ = 0°
φ = 270 °
Ver. 0.0
,
Right
,
Down
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LB121S03
Liquid Crystal Display
Product Specification
5. Mechanical Characteristics
The contents provide general mechanical characteristics for the model LB121S03. In addition the figures
in the next page are detailed mechanical drawing of the LCD.
Outline Dimension
Horizontal
276.0 ± 0.5mm
Vertical
209.0 ± 0.5mm
Depth
11.0mm
Horizontal
249.05 ± 0.5mm
Vertical
188.3 ± 0.5mm
Horizontal
246.0 mm
Vertical
184.5 mm
Bezel Area
Active Display Area
Weight
Surface Treatment
Ver. 0.0
690g (Max.)
Anti-glare treatment
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LB121S03
Liquid Crystal Display
Product Specification
Note) Unit:[mm], General tolerance: ± 0.5mm
<FRONT VIEW>
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LB121S03
Liquid Crystal Display
Product Specification
Note) Unit:[mm], General tolerance: ± 0.5mm
<REAR VIEW>
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LB121S03
Liquid Crystal Display
Product Specification
6. Reliability
Environment test condition
No.
Test Item
Conditions
1
High temperature storage test
Ta= 80°C, 240h
2
Low temperature storage test
Ta= -30°C, 240h
3
High temperature operation test
Ta= 70°C, 240h
4
Low temperature operation test
Ta= 0°C, 240h
5
Vibration test (non-operating)
Sine wave, 10 ~ 500 ~ 10Hz, 1.5G, 0.37oct/min
3 axis, 30min/axis
6
Shock test (non-operating)
Half sine wave, 180G, 2ms
one shock of each six faces(I.e. run 180G 6ms
for all six faces)
7
Altitude
0 ~ 10,000 feet (3,048m) 24Hr
0 ~ 40,000 feet (12,192m) 24Hr
operating
storage / shipment
{ Result Evaluation Criteria }
1. Evaluation should be tested after storage at room temperature for 24 hours.
2. There should be no change which might affect the practical display function when the display test
quality test is conducted under normal operating condition.
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LB121S03
Liquid Crystal Display
Product Specification
7. International Standards
7-1. Safety
a) UL 1950 Third Edition, Underwriters Laboratories, Inc. Jan. 28, 1995.
Standard for Safety of Information Technology Equipment Including Electrical Business Equipment.
b) CAN/CSA C22.2 No. 950-95 Third Edition, Canadian Standards Association, Jan. 28, 1995.
Standard for Safety of Information Technology Equipment Including Electrical Business Equipment.
c) EN 60950 : 1992+A1: 1993+A2: 1993+A3: 1995+A4: 1997+A11: 1997
IEC 950 : 1991+A1: 1992+A2: 1993+A3: 1995+A4: 1996
European Committee for Electro technical Standardization(CENELEC)
EUROPEAN STANDARD for Safety of Information Technology Equipment Including Electrical Business
Equipment.
7-2. EMC
a) ANSI C63.4 “Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and
Electrical Equipment in the Range of 9kHZ to 40GHz. “American National Standards Institute(ANSI),
1992
b) C.I.S.P.R “Limits and Methods of Measurement of Radio Interface Characteristics of Information
Technology Equipment.“ International Special Committee on Radio Interference.
c) EN 55022 “Limits and Methods of Measurement of Radio Interface Characteristics of Information
Technology Equipment.“ European Committee for Electro technical Standardization.(CENELEC), 1998
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LB121S03
Liquid Crystal Display
Product Specification
8. Packing
8-1. Designation of Lot Mark
a) Lot Mark
A
B
C
D
E
F
G
H
I
J
K
L
M
A,B,C : Inch
D : Year
E : Month
F : Panel Code
G : Factory Code
H : Assembly Code
I,J,K,L,M : Serial No
Note
1. Year
Year
97
98
99
2000
2001
2002
2003
2004
2005
2006
2007
Mark
7
8
9
0
1
2
3
4
5
6
7
Month
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Mark
1
2
3
4
5
6
7
8
9
A
B
C
2. Month
3. Panel Code
Panel Code
P1 Factory
P2 Factory
P3 Factory
P4 Factory
P5 Factory
Hydis Panel
Mark
1
2
3
4
5
H
4. Factory Code
Factory Code
LPL Gumi
LPL Nanjing
Hee Sung
Mark
K
C
D
5. Serial No
Serial No.
1 ~ 99,999
100,000 ~
Mark
00001 ~ 99999
A0001 ~ A9999, - - - - , Z9999
b) Location of Lot Mark
Serial NO. is printed on the label. The label is attached to the backside of the LCD module.
This is subject to change without prior notice.
8-2. Packing Form
a) Package quantity in one box : 16 pcs
b) Box Size : 425mm × 328mm × 350mm
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LB121S03
Liquid Crystal Display
Product Specification
9. PRECAUTIONS
Please pay attention to the followings when you use this TFT LCD module.
9-1. MOUNTING PRECAUTIONS
(1) You must mount a module using holes arranged in four corners or four sides.
(2) You should consider the mounting structure so that uneven force (ex. Twisted stress) is not applied to the
module. And the case on which a module is mounted should have sufficient strength so that external
force is not transmitted directly to the module.
(3) Please attach the surface transparent protective plate to the surface in order to protect the polarizer.
Transparent protective plate should have sufficient strength in order to the resist external force.
(4) You should adopt radiation structure to satisfy the temperature specification.
(5) Acetic acid type and chlorine type materials for the cover case are not desirable because the former
generates corrosive gas of attacking the polarizer at high temperature and the latter causes circuit break
by electro-chemical reaction.
(6) Do not touch, push or rub the exposed polarizers with glass, tweezers or anything harder than HB
pencil lead. And please do not rub with dust clothes with chemical treatment.
Do not touch the surface of polarizer for bare hand or greasy cloth.(Some cosmetics are detrimental
to the polarizer.)
(7) When the surface becomes dusty, please wipe gently with absorbent cotton or other soft materials like
chamois soaks with petroleum benzene. Normal-hexane is recommended for cleaning the adhesives
used to attach front / rear polarizers. Do not use acetone, toluene and alcohol because they cause
chemical damage to the polarizer.
(8) Wipe off saliva or water drops as soon as possible. Their long time contact with polarizer causes
deformations and color fading.
(9) Do not open the case because inside circuits do not have sufficient strength.
9-2. OPERATING PRECAUTIONS
(1) The spike noise causes the mis-operation of circuits. It should be lower than following voltage :
V=± 200mV(Over and under shoot voltage)
(2) Response time depends on the temperature.(In lower temperature, it becomes longer.)
(3) Brightness depends on the temperature. (In lower temperature, it becomes lower.)
And in lower temperature, response time(required time that brightness is stable after turned on) becomes
longer.
(4) Be careful for condensation at sudden temperature change. Condensation makes damage to polarizer or
electrical contacted parts. And after fading condensation, smear or spot will occur.
(5) When fixed patterns are displayed for a long time, remnant image is likely to occur.
(6) Module has high frequency circuits. Sufficient suppression to the electromagnetic interference shall be
done by system manufacturers. Grounding and shielding methods may be important to minimized the
interference.
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LB121S03
Liquid Crystal Display
Product Specification
9-3. ELECTROSTATIC DISCHARGE CONTROL
Since a module is composed of electronic circuits, it is not strong to electrostatic discharge. Make certain that
treatment persons are connected to ground through wrist band etc. And don’t touch interface pin directly.
9-4. PRECAUTIONS FOR STRONG LIGHT EXPOSURE
Strong light exposure causes degradation of polarizer and color filter.
9-5. STORAGE
When storing modules as spares for a long time, the following precautions are necessary.
(1) Store them in a dark place. Do not expose the module to sunlight or fluorescent light. Keep the
temperature between 5°C and 35°C at normal humidity.
(2) The polarizer surface should not come in contact with any other object.
It is recommended that they be stored in the container in which they were shipped.
9-6. HANDLING PRECAUTIONS FOR PROTECTION FILM
(1) When the protection film is peeled off, static electricity is generated between the film and polarizer.
This should be peeled off slowly and carefully by people who are electrically grounded and with well
ion-blown equipment or in such a condition, etc.
(2) The protection film is attached to the polarizer with a small amount of glue. If some stress is applied
to rub the protection film against the polarizer during the time you peel off the film, the glue is apt to
remain on the polarizer.
Please carefully peel off the protection film without rubbing it against the polarizer.
(3) When the module with protection film attached is stored for a long time, sometimes there remains a
very small amount of glue still on the polarizer after the protection film is peeled off.
(4) You can remove the glue easily. When the glue remains on the polarizer surface or its vestige is
recognized, please wipe them off with absorbent cotton waste or other soft material like chamois
soaked with normal-hexane.
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