LG Display LP125WH2-TLB1 Specification
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LP125WH2
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
() Preliminary Specification
()Final Specification
Title 12.5” HD TFT LCD
BUYER LENOVO
MODEL
APPROVED BY SIGNATURE
/
/
SUPPLIER LG Display Co., Ltd.
*MODEL LP125WH2
Suffix TLB1
*When you obtain standard approval,
please use the above model name without suffix
APPROVED BY
S. R. Kim / G.Manager
REVIEWED BY
N. J. Seong / Manager
SIGNATURE
/
Please return 1 copy for your confirmation with
your signature and comments.
Ver. 0.5 09, Feb., 2011
PREPARED BY
J. T. Kim / Engineer
S. M. Woo / Engineer
Products Engineering Dept.
LG Display Co., Ltd
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LP125WH2
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
LVDS SIGNAL TIMING SPECIFICATION
3-3
SIGNAL TIMING SPECIFICATIONS
3-3
SIGNAL TIMING WAVEFORMS
3-4
COLOR INPUT DATA REFERNECE
3-5
POWER SEQUENCE
3-6
4
OPTICAL SFECIFICATIONS
Page
1
2
3
4
5
6-7
8
9-10
11
11
12
13
14-16
5
6 RELIABLITY
7 INTERNATIONAL STANDARDS
8 PACKING
Ver. 0.5 09, Feb., 2011
MECHANICAL CHARACTERISTICS
7-1 SAFETY
7-2 EMC
8-1 DESIGNATION OF LOT MARK
8-2 PACKING FORM
8-3 LABEL DESCRIPTION
PRECAUTIONS9
APPENDIX. Enhanced Extended Display Identification Data A
17-29
20
21
21
22
22
23-24
24-25
26-28
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LP125WH2
Liquid Crystal Display
Product Specification
RECORD OF REVISIONS
Revision No Revision Date Page Description
0.0 2. Jun. 2010 - First Specification -
6 Update the Electrical Characteristics
9 Update the DC Specification of the LVDS Signal Timing Spec.
0.1 23. Aug. 2010
0.2 26. Aug. 2010 13 Update T7 time of the Power Sequence (3ms ˧ 0ms) 0.0
0.3 02. Dec. 2010
0.4 21. Jan. 2011
1.0 09. Feb. 2011
18, 19 Update the Drawing
22 Update the Packing Form
25 ~ 27 Update the EDID data
14 Update the Color Coordination
15 Update the Gray scale specification
Update the Packing form
22
25~27
6 Change the PWM Duty Ratio (5% ˧ 1%)
11 Update the Signal Timing Specifications (DCLK 74.8Mhz)
14 Add the Typ. Value of Viewing Angle,
18~19 Update the Front & Back View of Drawing
22~23 Update the Packing Information
26~28 Update the EDID Data (Checksum : 94 ˧ F7)
4, 17 Update the Outline Dimension (Thickness 3.6 ˧3.7D,Max.)
6
8 Delete “or Equivalent” at Connector
11 Change the Timing Description
14 Update the Luminance Variation 5point
18-19 Update the Drawing of Front view, Rear view
-. Change the Packing quantity (30pcs Æ 20pcs)
-. Change the Box size (473X364X338 Æ 422X340X257)
Update the EDID Data (Checksum: 4B ˧ 94)
-. Update the Color Coordination
Change the Backlight PWM High Level Voltage (Min 3.0 ˧ 2.7)
Change the Backlight LED_EN High Level Voltage (Min 3.0 ˧ 2.7)
Update Label Description 23
EDID
ver
0.0
0.2
0.3
1.0
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1. General Description
The LP125WH2 is a Color Active Matrix Liquid Crystal Display with an integral 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 12.5 inches diagonally measured active display area with HD
resolution (1366 horizontal by 768 vertical pixel array). Each pixel is divided into Red, Green and Blue subpixels 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 LP125WH2 has been designed to apply the interface method that enables low power, high
speed, low EMI. The LP125WH2 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 subpixels, the LP125WH2 characteristics provide an excellent flat display for office automation products such
as Notebook PC.
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LP125WH2
Liquid Crystal Display
Product Specification
EEPROM Block
I²C
User connector
EEPROM Block
for EDID
for EDID
EEPROM Block
EEPROM Block
for Tcon Operating
for Tcon Operating
1
TFT-LCD Panel
40
Pin
Timing Control
LVDS
1port
VCC
VLED
LED_EN
PWM
Timing Control
(Tcon) Block
(Tcon) Block
DVCC
Power
Block
LED Driver
LED Driver
Block
TCLKs
Power
Block
Block
VGH, VGL, GMA
Control & Data Power
M
i
n
i
-
L
V
D
S
DVCC, AVDD
GIP CLKs, DSC
VOUT_LED
FB1~4
768
(HD, GIP+DRD, TN)
Source Driver
(Bottom Bent)
LED Backlight Ass’y
EDID signal & Power
General Features
Active Screen Size 12.5 inches diagonal
Outline Dimension 290.5(H, Typ.) Ý 179.5(V, Typ.) Ý 3.7(D, Max.) mm
Pixel Pitch 0.2025 X 0.2025 mm
Pixel Format 1366 horiz. by 768 vert. Pixels RGB strip arrangement
Color Depth 6-bit, 262,144 colors
2
Luminance, White 200 cd/m
Power Consumption Total 3.9 W (Typ.) Logic : 1.1 W (Typ.@ Mosaic), B/L : 2.8W (Typ.@ VLED 12V )
Weight 270g (Max.)
Display Operating Mode Transmissive mode, normally white
Surface Treatment Anti-glare treatment of the front Polarizer
RoHS Compliance Yes
BFR / PVC / As Free Yes for all
(Typ.5 point @ PWM Duty = 100%)
1366
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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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LP125WH2
Liquid Crystal Display
Product Specification
Table 1. ABSOLUTE MAXIMUM RATINGS
Parameter Symbol
Power Input Voltage
Operating Temperature
Storage Temperature
Operating Ambient Humidity
Storage Humidity
VCC -0.3 4.0 Vdc at 25 r 5qC
TOP 050qC1
HST -20 60 qC1
HOP 10 90 %RH 1
HST 10 90 %RH 1
Values
Units Notes
Min Max
Note : 1. Temperature and relative humidity range are shown in the figure below.
Wet bulb temperature should be 39
Wet Bulb
20
]
30
Temperature [
10
0
qC Max, and no condensation of water.
90% 80%
60
50
40
60%
Humidity[(%)RH]
40%
20%
10%
Storage
Operation
-20
10
20 30 40 50
60 70 800
Dry Bulb Temperature []
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3. Electrical Specifications
3-1. Electrical Characteristics
The LP33WH2 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
LOGIC :
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LP125WH2
Liquid Crystal Display
Product Specification
Values
Unit Notes
Min Typ Max
Power Supply Input Voltage V
Power Supply Input Current Mosaic I
Power Consumption P
Power Supply Inrush Current I
LVDS Impedance Z
CC 3.0 3.3 3.6 V 1
CC - 330 380 mA 2
CC -1.11.3W3
CC_P - 2000 mA 4
LVDS 90 100 110
ȳ
BACKLIGHT : ( with LED Driver)
LED Power Input Voltage V
LED Power Input Current I
LED Power Consumption P
LED Power Inrush Current I
LED 7.0 12.0 21.0 V 6
LED - 235 250 mA 7
LED -2.83.0W7
LED_P - 2000 mA 8
PWM Duty Ratio 1 - 100 % 9
PWM Jitter
PWM Impedance Z
PWM Frequency F
-
PWM 20 40 60 kȳ
PWM 200 - 1000 Hz 11
0-0.2%10
5
PWM High Level Voltage V
PWM Low Level Voltage V
LED_EN Impedance Z
LED_EN High Voltage V
LED_EN Low Voltage V
LED_EN_H 2.7 - 3.6 V
LED_EN_L 0-0.3V
PWM_H
PWM_L
PWM 20 40 60 kȳ
2.7 - 3.6 V
0-0.3V
Life Time 12,000 - - Hrs 12
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Product Specification
Note)
1. The measuring position is the connector of LCM and the test conditions are under 25, fv = 60Hz,
Black pattern.
2. The specified Icc current and power consumption are under
the Vcc = 3.3V , 25, fv = 60Hz condition and Mosaic pattern.
3. This Power Consumption Spec. is measured for the Mosaic Pattern condition.
4. The below figures are the measuring Vcc condition and the Vcc control block LGD used.
The Vcc condition is same as the minimum of T1 at Power on sequence.
LP125WH2
Liquid Crystal Display
Rising time
Vcc
0V
5. This impedance value is needed for proper display and measured form LVDS Tx to the mating connector.
6. The measuring position is the connector of LCM and the test conditions are under 25.
7. The current and power consumption with LED Driver are under the Vled = 12.0V , 25, Dimming of
Max luminance and White pattern with the normal frame frequency operated(60Hz).
8. The below figures are the measuring Vled condition
and the Vled control block LGD used.
VLED control block is same with Vcc control block.
90%
10%
0.5ms
3.3V
Rising time
LED
V
0V
10%
12.0V
90%
0.5ms
9. The operation of LED Driver below minimum dimming ratio may cause flickering or reliability issue.
10. If Jitter of PWM is bigger than maximum, it may induce flickering.
11. 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.
12. The life time is determined as the sum of the continuous operation time at which brightness of LCD at the
typical LED current is 50% compare to that of minimum value specified in table 7 under general user
condition.
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3-2. Interface Connections
This LCD employs two interface connections, a 40 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 GT05Q-40S-H10 manufactured by LSMtron.
Table 3. MODULE CONNECTOR PIN CONFIGURATION (CN1)
Pin Symbol Description Notes
1 NC No Connection
2 VCC LCD Logic and driver power (3.3V Typ.)
3 VCC LCD Logic and driver power (3.3V Typ.)
4 V EEDID DDC Power (3.3V)
5 NC No Connection
6 Clk EEDID DDC Clock
7 DATA EEDID DDC Data
8 ORX0- Negative LVDS differential data input
9 ORX0+ Positive LVDS differential data input
10 GND High Speed Ground
11 ORX1- Negative LVDS differential data input
12 ORX1+ Positive LVDS differential data input
13 GND High Speed Ground
14 ORX2- Negative LVDS differential data input
15 ORX2+ Positive LVDS differential data input
16 GND High Speed Ground
17 ORXC- Negative LVDS differential clock input
18 ORXC+ Positive LVDS differential clock input
19 VSS Ground
20
21
22 GND Ground
23
24
25 GND Ground
26
27
28 GND Ground
29
30
31
32
33
34
35
36
37 NC Reserved
38
39
40
NC
NC
NC
NC
NC
NC
NC
NC
GND LED Backlight Ground
GND LED Backlight Ground
GND LED Backlight Ground
NC
PWM System PWM Signal input for dimming
LED_EN
VLED LED Backlight Power (7V-21V)
VLED LED Backlight Power (7V-21V)
VLED LED Backlight Power (7V-21V)
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
LED Backlight On/Off
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LP125WH2
Liquid Crystal Display
Product Specification
[Interface Chip]
1. LCD :
SiW, SW0641(LCD Controller)
Including LVDS Receiver.
2. System : SiW LVDSRx or equivalent
* Pin to Pin compatible with LVDS
[Connector]
LSMtron GT05Q-40S-H10
[Mating Connector]
20345-#40E-## series or equivalent
[Connector pin arrangement]
140
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3-3. LVDS Signal Timing Specifications
3-3-1. DC Specification
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LP125WH2
Liquid Crystal Display
Product Specification
VDD=1.8V
Description Symbol Min Typ Max Unit Notes
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
| 100 - 600 mV -
ID
CM
IN
|VID| /2 1.2 VDD- |VID|/2 V -
0.3 - VDD V -
t
SKEW
t
SKEW
- 400 + 400 ps
- 600 + 600 ps
85MHz > Fclk ˻
65MHz
65MHz > Fclk ˻
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
Ver. 0.5 09, Feb., 2011
t
SKEW_EO
F
DEV
F
MOD
-1/7 + 1/7 T
clk
- · 3% -
- 200 KHz -
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