LG Display LP121WX3-TLB1 Specification
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LP121WX3
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
Title 12.1” WXGA TFT LCD
Customer LENOVO
MODEL
APPROVED BY
/
/
/
SIGNATURE
SUPPLIER LG Display Co., Ltd.
*MODEL LP121WX3
Suffix TLB1
*When you obtain standard approval,
please use the above model name without suffix
APPROVED BY
G. J. Kwon / G.Manager
REVIEWED BY
S. R. Kim / Manager
PREPARED BY
SIGNATURE
S. Y. Kim / Engineer
T.S. Yun / Engineer
Please return 1 copy for your confirmation with
your signature and comments.
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LP121WX3
Liquid Crystal Display
Product Specification
Contents
No ITEM
COVER
CONTENTS
RECORD OF REVISIONS
1 GENERAL DESCRIPTION
2 ABSOLUTE MAXIMUM RATINGS
3 ELECTRICAL SPECIFICATIONS
3-1 ELECTRICAL CHARACTREISTICS
3-2 INTERFACE CONNECTIONS
3-3 LVDS SIGNAL TIMING SPECIFICATIONS
3-4 SIGNAL TIMING SPECIFICATIONS
3-5 SIGNAL TIMING WAVEFORMS
3-6 COLOR INPUT DATA REFERNECE
Page
1
2
3
4
5
6
8
9
11
11
12
3-7 POWER SEQUENCE
4 OPTICAL SFECIFICATIONS
5 MECHANICAL CHARACTERISTICS
6 RELIABLITY
7 INTERNATIONAL STANDARDS
7-1 SAFETY
7-2 EMC
8 PACKING
8-1 DESIGNATION OF LOT MARK
8-2 PACKING FORM
9 PRECAUTIONS
A APPENDIX. Enhanced Extended Display Identification Data
13
14
17
24
25
25
26
26
27
29
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LP121WX3
Liquid Crystal Display
Product Specification
RECORD OF REVISIONS
Revision No Revision Date Page Description
0.0 Dec. 22. 2008 - First Draft (Preliminary Specification) 0.0
0.1 Feb. 10. 2009 12 Update the LED Power Sequence 0.1
13 Update the Color Coordinates (RGB Data)
28 Update the EDID Data
˧ Product Code: 0A(h): FA 0B(h): 01
1.0 Mar. 14. 2009 - Final Specification 1.0
EDID
ver
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LP121WX3
Liquid Crystal Display
Product Specification
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(800 vertical by 1280 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 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.
ڞک
ڌ
ڰێۀۍٻھۊۉۉۀھۏۊۍٻ
ڏڋ
ګۄۉ
ڧڱڟڮٻځ
گۄۈۄۉۂ
ڞۊۉۏۍۊۇ
ڝۇۊھۆ
ګڪڲڠڭٻ
ڝڧڪڞڦ
ڠڟڤڟٻ
ڌ
ڢڤګڃڢڼۏۀٻڤۉٻګڼۉۀۇڄ
ړڋڋ
ڮۊېۍھۀٻڟۍۄۑۀۍٻڞۄۍھېۄۏ
ڌ
گڡگڈڧڞڟٻګڼۉۀۇ
ڃڌڍړڋٻۓٻړڋڋڄ
ڝڧڪڞڦ
ڝڼھۆۇۄۂۃۏٻڜێێ’۔
ࣿࣜࣜ ࣜࣜࣜ
General Features
Active Screen Size 12.1 inches diagonal
Outline Dimension
Pixel Pitch 0.204 mm Ý 0.204 mm
Pixel Format 1280 horiz. By 800 vert. Pixels RGB strip arrangement
Color Depth 6-bit, 262,144 colors
Luminance, White 200 cd/m
Power Consumption Total 3.9 Watt(Typ.) @ LCM circuit 0.8Watt(Typ.), B/L input 3.1Watt(Typ.)
Weight 270g(Max.)
Display Operating Mode Transmissive mode, normally white
Surface Treatment Anti-glare treatment of the front polarizer
275.8 (H) ϧ 178.1 (V) ϧ 5.5(D, max) mm
2
(Typ.5 point)
ڌڍړڋ
RoHS Comply Yes
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LP121WX3
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
Power Input Voltage
Operating Temperature
Storage Temperature
Operating Ambient Humidity
Storage Humidity
VCC -0.3 4.0 Vdc at 25 r 5qC
T
OP
H
ST
H
OP
H
ST
Values
Units
Min Max
050qC1
-20 60 qC1
10 90 %RH 1
10 90 %RH 1
Note : 1. Temperature and relative humidity range are shown in the figure below.
qC
Wet bulb temperature should be 39
Wet Bulb
Temperature [
]
Max, and no condensation of water.
90% 80%
60
50
60%
Humidity[(%)RH]
Storage
NotesSymbol
40
30
20
10
0
-20
10
20 30 40 50
60 70 800
Dry Bulb Temperature []
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40%
20
%
10%
Operation
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LP121WX3
Liquid Crystal Display
Product Specification
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.
Table 2. ELECTRICAL CHARACTERISTICS
Parameter Symbol
Values
Min Typ Max
Unit Notes
LOGIC :
Power Supply Input Voltage VCC 3.0 3.3 3.6 V
Power Supply Input Current I
Power Consumption
CC
Pc Mosaic - 0.8 0.9 W
Power Supply Inrush Current I
LVDS Impedance Z
Mosaic - 250 280 mA 1
CC_P
LVDS 90 100 110
- - 1500 mA
DC
˟
LED Backlight:
Operating Current per string I
Operating Voltage per string V
Power Consumption P
LED
LED
BL
5.0 20.0 21.0 mA 3
- 22.1 23.8 V
3.1 3.4 W 3
Life Time 12,000 Hrs 4
LED Driver
Power Supply Input Voltage V
Frequency F
PWM Dimming (Duty) Ratio D
PWM High Voltage Level V
PWM Low Voltage Level V
LED_EN High Voltage V
LED_EN Low Voltage V
PWM_ H
PWM_ L
LED_EN_H
LED_EN_L
BL+
PWM
on
7.0 12.0 20.0 V
200 1000 Hz 5
12.5 - 100 % 6
3.0 - 5.3 V
0-0.5V
3.0 - 5.3 V
0-0.5V
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.
2
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 6 strings on it and the typical current of LED’s string is base
on typical current at Table 2.
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. The operation of LED Driver below minimum dimming ratio may cause flickering or reliability issue.
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LP121WX3
Liquid Crystal Display
Product Specification
3-2. Interface Connections
This LCD employs one interface connections, a 40 pin connector is used for the module electronics interface
and the integral backlight system.
The electronics interface connector is a model FI-NXB40SL-HF10 manufactured by JAE.
Table 3. MODULE CONNECTOR PIN CONFIGURATION (CN1)
Pin Symbol Description Notes
1 NC No Connection (Reserved for supplier)
2 VCC Power Supply, 3.3V (typical)
3 VCC Power Supply, 3.3V (typical)
4 V EEDID DDC 3.3V power
5 NC No Connection
6 Clk EEDID DDC Clock
7 DATA EEDID DDC Data
0- Negative LVDS differential data input
8
9
10
11
12
13
14
15
16
17
18
19 GND Ground
20 NC No Connection
21 NC No Connection
22 GND Ground
23 NC No Connection
24 NC No Connection
25 GND Ground
26 NC No Connection
27 NC No Connection
28 GND Ground
29 NC No Connection
30 NC No Connection
31 VBL- LED Ground
32 VBL- LED Ground
33 VBL- LED Ground
34 NC No Connection (Reserved for supplier)
35 VBL+ LED Power Supply 6V-20V
36 VBL+ LED Power Supply 6V-20V
37 VBL+ LED Power Supply 6V-20V
38 BLIM PWM for luminance control (200Hz ~ 1000Hz)
39 BL_Enable Backlight On/Off Control
40 NC No Connection (Reserved for supplier)
R
IN
R
0+ Positive LVDS differential data input
IN
GND Ground
R
1- Negative LVDS differential data input
IN
1+ Positive LVDS differential data input
R
IN
GND Ground
R
2- Negative LVDS differential data input
IN
R
2+ Positive LVDS differential data input
IN
GND Ground
CLKIN- Negative LVDS differential clock input
CLKIN+ Positive LVDS differential clock input
1, Interface chips
1.1 LCD : SW, SW0612B (LCD Controller)
including LVDS Receiver
1.2 System : THC63LVD823A or
* Pin to Pin compatible with LVDS
2. Connector
2.1 LCD
2.2 Mating : FI-NX400L or equivalent.
2.3 Connector pin arrangement
: FI-NXB40SL-HF10, JAE
it’s compatible.
[W
equivalent
X
[LCD Module Rear View]
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Product Specification
3-3. LVDS Signal Timing Specifications
3-3-1. DC Specification
LP121WX3
Liquid Crystal Display
Description
LVDS Differential Voltage |V
LVDS Common mode Voltage V
LVDS Input Voltage Range V
3-3-2. AC Specification
Description Symbol Min Max Unit Notes
LVDS Clock to Data Skew Margin
Symb
ol
| 100 600 mV -
ID
CM
IN
t
SKEW
t
SKEW
Min Max Unit Notes
0.6 1.8 V -
0.3 2.1 V -
- 400 + 400 ps
- 600 + 600 ps
85MHz > Fclk ˻
65MHz > Fclk ˻
65MHz
25MHz
LVDS Clock to Clock Skew Margin (Even
to Odd)
Maximum deviation
of input clock frequency during SSC
Maximum modulation frequency
of input clock during SSC
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t
SKEW_EO
F
DEV
F
MOD
-1/7 -
+ 1/7 T
clk
- · 3%
- 200 KHz
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Freq.
F
max
F
center
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Product Specification
< Clock skew margin between channel >
LP121WX3
Liquid Crystal Display
m
QGm
kl}
F
min
3-3-3. Data Format
1) LVDS 1 Port
RCLK+
RA+/-
RB+/-
RC+/-
R3 R2
G4 G3
B5 B4
R1 R0
G2 G1
B3 B2
X
m
tvk
< Spread Spectrum >
G0 R5 R4 R3 R2 R1 R0
B1 B0 G5 G4 G3 G2 G1
DE VSYNC HSYNC B5 B4 B3 B2
Time
G0
B1
DE
VSYNC HSYNC
R5 R4
B0 G5
RD+/-
G7 G6
Previous (N-1)th Cycle Next (N+1)th Cycle
R7 R6
X B7 B6 G7 G6 R7 R6
Current (Nth ) Cycle
X
< LVDS Data Format >
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