LG Display LP121WX3-TLC1 Specification
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LP121WX3
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
)
(
Preliminary Specification
)
(
Final Specification
MODEL
/
/
12.1” WXGA TFT LCDTitle
LENOVOCustomer
*When you obtain standard approval,
please use the above model name without suffix
SIGNATUREAPPROVED BY
APPROVED BY
G. J. Kwon / G.Manager
REVIEWED BY
J. S. Park / Manager
LG Display Co., Ltd.SUPPLIER
LP121WX3*MODEL
TLC1Suffix
SIGNATURE
/
Please return 1 copy for your confirmation with
your signature and comments.
Ver. 0.6 Jul. 07, 2009
PREPARED BY
S. Y. Kim / Engineer
T. S. Yun / Engineer
Products Engineering Dept.
LG Display Co., Ltd
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LP121WX3
Liquid Crystal Display
Product Specification
Contents
COVER
CONTENTS
RECORD OF REVISIONS
GENERAL DESCRIPTION1
ABSOLUTE MAXIMUM RATINGS2
ELECTRICAL SPECIFICATIONS3
ELECTRICAL CHARACTREISTICS3-1
INTERFACE CONNECTIONS3-2
LVDS SIGNAL TIMING SPECIFICATIONS3-3
SIGNAL TIMING SPECIFICATIONS3-4
SIGNAL TIMING WAVEFORMS3-5
COLOR INPUT DATA REFERNECE3-6
POWER SEQUENCE3-7
OPTICAL SFECIFICATIONS4
ITEMNo
Page
1
2
3
4
5
6
8
9
11
11
12
13
14
MECHANICAL CHARACTERISTICS5
RELIABLITY6
INTERNATIONAL STANDARDS7
SAFETY7-1
EMC7-2
PACKING8
DESIGNATION OF LOT MARK8-1
PACKING FORM8-2
PRECAUTIONS9
APPENDIX. Enhanced Extended Display Identification Data A
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LP121WX3
Liquid Crystal Display
Product Specification
RECORD OF REVISIONS
DescriptionPageRevision DateRevision No
First Draft (Preliminary Specification)-Dec. 24. 20080.0
Update the Electrical Characteristics.( Change the Spec.)6
Update the Pin Map Description.7
Add 50Hz Timing Table10
Update the Optical Characteristics.13
Update the Mechanical Characteristics.16
Update the Mechanical Drawing.17
Update the EDID Data (C0 ˧ AC)28~30
Update the LCD Driver Specification6Jun. 12. 20090.2
Update the LCD connector Description7
Update the Power Sequence12
Update the Label Description26
Update the Mechanical Drawing.17~19Jun. 22. 20090.3
Update the Mechanical Drawing.18Jun. 25. 20090.4
Update the Power Sequence.12Jul. 01. 20090.5
Update the Power Sequence.12Jul. 07. 20090.6
Update the Mechanical Characteristics.16
EDID
ver
0.0
0.1Update the General Description Block Diagram4Jun. 04. 20090.1
0.1
0.1
0.1
0.1
0.1
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1. General Description
The LP121WX3 is a Color Active Matrix Liquid Crystal Display with an integral White LED 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 WXGA resolution(1280 horizontal by 800 vertical 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 LP121WX3 has been designed to apply the interface method that enables low power, high speed, low
EMI.
The LP121WX3 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
LP121WX3 characteristics provide an excellent flat display for office automation products such as Notebook
PC.
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LP121WX3
Liquid Crystal Display
Product Specification
ڞک
ڌ
ڰێۀۍٻھۊۉۉۀھۏۊۍٻ
VCC
ڎڋ
ګۄۉ
VLED
BL_ON
PWM
General Features
Outline Dimension
LVDS &
Timing Control
(T-con) Block
ڌ
ڢڤګڃڢڼۏۀٻڤۉٻګڼۉۀۇڄ
POWER
BLOCK
Source Driver Circuit
ڌ
TFT-LCD Panel
(1280 x 800)
EDID
BLOCK
LED Driver
LED Driver
Block
Block
VOUT_LED
FB1~4
ړڋڋ
LED Backlight Ass’y
ࣿࣜࣜ ࣜࣜࣜ
12.1 inches diagonal Active Screen Size
275.8 (H) ϧ 178.1 (V) ϧ 5.3(D, max) mm
0.204 mm Ý 0.204 mmPixel Pitch
1280 horiz. By 800 vert. Pixels RGB strip arrangementPixel Format
6-bit, 262,144 colorsColor Depth
220 cd/m
Total 3.8 W (Typ.) Logic: 0.8W (Typ.@Mosaic), B/L: 3.0W (Typ.@VLED:12V)Power Consumption
285(Max.) Weight
Transmissive mode, normally whiteDisplay Operating Mode
Anti-glare treatment of the front polarizer (ARC150T)Surface Treatment
YesRoHS Comply
2
(Typ.5 point)Luminance, White
ڌڍړڋ
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2. Absolute Maximum Ratings
The following are maximum values which, if exceeded, may cause faulty operation or damage to the unit.
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LP121WX3
Liquid Crystal Display
Product Specification
Table 1. ABSOLUTE MAXIMUM RATINGS
Parameter Notes
Symbol
Values
Units
MaxMin
Power Input Voltage
Operating Temperature
Storage Temperature
Operating Ambient Humidity
OP
Storage Humidity
Note : 1. Temperature and relative humidity range are shown in the figure below.
Wet bulb temperature should be 39
Wet Bulb
Temperature [
10
0
20
]
30
qC Max, and no condensation of water.
90% 80%
60
50
40
60%
Humidity[(%)RH]
40%
20%
10%
Storage
Operation
at 25 r 5qCVdc4.0-0.3VCC
1qC500TOP
1qC60-20HST
1%RH9010H
1%RH9010HST
-20
10
20 30 40 50
60 70 800
Dry Bulb Temperature []
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3. Electrical Specifications
3-1. Electrical Characteristics
The LP121WX3 requires two power inputs. The first logic is employed to power the LCD electronics and to
drive the TFT array and liquid crystal. The second backlight is the input about LED BL.with LED Driver.
Parameter Symbol
MODULE :
Power Supply Input Current
Power Consumption
LED Backlight:
Operating Current per string
Operating Voltage per string
Power Consumption
LED Driver
Power Supply Input Voltage
Frequency
PWM Dimming (Duty) Ratio
PWM High Voltage Level
PWM Low Voltage Level
LED_EN High Voltage
LED_EN Low Voltage
Note)
1. The specified current and power consumption are under the Vcc = 3.3V , 25, fv = 60Hz condition
whereas Mosaic pattern is displayed and fv is the frame frequency.
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Product Specification
Table 2. ELECTRICAL CHARACTERISTICS
Values
CC
LVDSLVDS Impedance
LED
LED
BL
BL+
PWM
on
PWM_ H
PWM_ L
LED_EN_H
LED_EN_L
Liquid Crystal Display
MaxTypMin
3.63.33.0VCCPower Supply Input Voltage
11010090Z
V
DC
W0.90.8-MosaicPc
˟
V34.032.0-V
V21.012.07.0V
V5.3-3.0V
V0.5-0V
V5.3-3.0V
V0.5-0V
LP121WX3
NotesUnit
1mA285250-MosaicI
2
3mA21.020.05.0I
3W3.43.0P
4Hrs12,000Life Time
5Hz1000200F
6%100-1.5D
2. This impedance value is needed to proper display and measured form
LVDS Tx to the mating connector.
3. The specified LED current and power consumption are under the Vled = 12.0V , 25, Dimming of Max
luminance whereas White pattern is displayed and fv is the frame frequency.
4. The life time is determined as the time at which brightness of LCD is 50% compare to that of minimum
value at Table. 7. These LED backlight has 4 strings on it and the typical current of LED’s string is
base on 20mA
5. This Spec. is not effective at 100% dimming ratio as an exception because it has DC level equivalent
to 0Hz. In spite of acceptable range as defined, the PWM Frequency should be fixed and stable for
more consistent brightness control at any specific level desired.
6. LGD LED Driver guarantee 6.0% at PWM minimum dimming ratio. Minimum dimming ratio 1.5% is based
on Lenovo’s.
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3-2. Interface Connections
This LCD employs one interface connections, a 30 pin connector is used for the module electronics interface
and the integral backlight system.
The electronics interface connector is a model FI-XB30SL-HF10 manufactured by JAE.
Table 3. MODULE CONNECTOR PIN CONFIGURATION (CN1)
No ConnectionNC1
Power Supply, 3.3V (typical)VCC2
Power Supply, 3.3V (typical)VCC3
DDC 3.3V powerV EEDID4
Reserved for supplier test pointReserved5
DDC ClockClk EEDID6
DDC DataDATA EEDID7
Negative LVDS differential data inputR
8
9
10
11
12
13
14
15
16
17
18
0-
IN
0+
IN
IN
1+
IN
IN
2+
IN
VLED LED Power Supply 7V-21V27
Positive LVDS differential data inputR
GroundGND
1-
Negative LVDS differential data inputR
Positive LVDS differential data inputR
GroundGND
Negative LVDS differential data inputR
2-
Positive LVDS differential data inputR
GroundGND
Negative LVDS differential clock inputCLKIN-
Positive LVDS differential clock inputCLKIN+
GroundGND19
GroundGND20
LED GroundVBL-21
LED GroundVBL-22
LED GroundVBL-23
No ConnectionNC24
LED Power Supply 7V-21VVLED25
LED Power Supply 7V-21VVLED26
PWM for luminance control (200Hz ~ 1000Hz)PWM28
Backlight On/Off ControlLED_EN29
No ConnectionNC30
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Product Specification
LP121WX3
Liquid Crystal Display
NotesDescriptionSymbolPin
1, Interface chips
1.1 LCD : SW, SW0611A (LCD Controller)
including LVDS Receiver
1.2 System : THC63LVD823A or equivalent
* Pin to Pin compatible with LVDS
2. Connector
2.1 LCD : FI-XB30SL-HF10, JAE
2.2 Connector pin arrangement
[LCD Module Rear View]
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3-3. LVDS Signal Timing Specifications
3-3-1. DC Specification
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LP121WX3
Liquid Crystal Display
Product Specification
Description
LVDS Common mode Voltage
LVDS Input Voltage Range
3-3-2. AC Specification
LVDS Clock to Data Skew Margin
Symb
ol
ID
CM
IN
SKEW
SKEW
NotesUnitMaxMin
|LVDS Differential Voltage
-mV600100|V
-V1.80.6V
-V2.10.3V
NotesUnitMaxMinSymbolDescription
85MHz > Fclk ˻
65MHz
65MHz > Fclk ˻
25MHz
- 600
ps+ 400- 400t
ps+ 600t
LVDS Clock to Clock Skew Margin (Even
to Odd)
SKEW_EO
Maximum deviation
of input clock frequency during SSC
DEV
Maximum modulation frequency
of input clock during SSC
Ver. 0.6 Jul. 07, 2009
MOD
-1/7
+ 1/7t
T
clk
%· 3-F
KHz200-F
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Freq.
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LP121WX3
Liquid Crystal Display
Product Specification
< Clock skew margin between channel >
F
max
F
center
F
min
3-3-3. Data Format
1) LVDS 1 Port
RCLK+
RA+/-
RB+/-
R3 R2
G4 G3
R1 R0
G2 G1
X
m
tvk
< Spread Spectrum >
G0 R5 R4 R3 R2 R1 R0
B1 B0 G5 G4 G3 G2 G1
m
G0
B1
QGm
kl}
Time
R5 R4
B0 G5
RC+/-
RD+/-
B5 B4
G7 G6
Previous (N-1)th Cycle Next (N+1 )th Cycle
B3 B2
R7 R6
DE VSYNC HSYNC B5 B4 B3 B2
X B7 B6 G7 G6 R7 R6
Current (Nth ) Cycle
DE
VSYNC HSYNC
X
< LVDS Data Format >
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3-4. 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.
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LP121WX3
Liquid Crystal Display
Product Specification
Table 4. TIMING TABLE
Note(50Hz)UnitMaxTypMinSymbolITEM
FrequencyDCLK
CLK
148014081376ThpPeriod
Hsync
Vsync
Data
Enable
Width
Width-Active
Period
Width
Width-Active
Horizontal back porch
Horizontal front porch
Vertical back porch
Vertical front porch
WH
WHA
WV
WVA
HBP
HFP
VBP
t
VFP
VP
403224t
128012801280t
832820810t
642t
967256t
18126t
tCLK
tHP
tCLK
tHP
Appendix) All reliabilities are specified for timing specification based on refresh rate of 60Hz.
However, LP121WX3 has a good actual performance even at lower refresh rate (e.g. 50Hz)
for power saving mode, whereas LP121WX3 is secured only for function under lower refresh rate.
60Hz at Normal mode, 50Hz at Power save mode. Don’t care Flicker level (power save mode).
3-5. Signal Timing Waveforms
High: 0.7VCC
Condition : VCC =3.3V
Data Enable, Hsync, Vsync
Low: 0.3VCC
57.79MHz73.969.366.9f
1408
32
1280
820
4
800800800800t
72
24642416t
12
4842
DCLK
Hsync
t
tCLK
WH
t
HBP
0.5 Vcc
t
HP
Data Enable
t
VP
t
WV
Vsync
t
VBP
Data Enable
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tWHA
tWVA
t
HFP
t
VFP
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