LG LP-141WX5-TLA1 Service manual
Product Specification
SPECIFICATION
LP141WX5
Liquid Crystal Display
FOR
APPROVAL
)
(
(
Preliminary Specification
◆
)
Final Specification
MODEL
www.jxlcd.com
14.1” WXGA TFT LCDTitle
HPCustomer
*When you obtain standard approval,
www.jxlcd.com
please use the above model name without suffix
LG Display Co., Ltd.SUPPLIER
LP141WX5*MODEL
TLA1Suffix
SIGNATUREAPPROVED BY
/
/
/
Please return 1 copy for your confirmation with
your signature and comments.
Ver. 1.0 Jun. 3, 2008
APPROVED BY
K. J. Kwon / G. Manager
REVIEWED BY
S. R. Kim / Manager
PREPARED BY
K. T. Moon / Engineer
Products Engineering Dept.
LG Display Co., Ltd
SIGNATURE
1 / 27
Product Specification
Contents
LP141WX5
Liquid Crystal Display
ITEMNo
COVER
CONTENTS
RECORD OF REVISIONS
GENERAL DESCRIPTION1
ABSOLUTE MAXIMUM RATINGS2
ELECTRICAL SPECIFICATIONS3
ELECTRICAL CHARACTREISTICS 3-1
INTERFACE CONNECTION 3-2
LVDS SIGNAL TIMING SPECIFICATIONS 3-3
SIGNAL TIMING SPECIFICATIONS 3-4
SIGNAL TIMING WAVEFORMS 3-5
www.jxlcd.com
www.jxlcd.com
COLOR INPUT DATA REFERNECE 3-6
POWER SEQUENCE 3-7
OPTICAL SFECIFICATIONS4
Page
1
2
3
4
5
6
7
8
10
10
11
12
13
MECHANICAL CHARACTERISTICS5
RELIABLITY6
INTERNATIONAL STANDARDS7
SAFETY 7-1
EMC 7-2
PACKING8
DESIGNATION OF LOT MARK 8-1
PACKING FORM 8-2
PRECAUTIONS9
APPENDIX. Enhanced Extended Display Identification Data A
Ver. 1.0 Jun. 3, 2008
16
20
21
21
22
22
23
25
2 / 27
Product Specification
RECORD OF REVISIONS
LP141WX5
Liquid Crystal Display
DescriptionPageRevision DateRevision No
Final specificationAllJun. 3. 20081.0
www.jxlcd.com
www.jxlcd.com
EDID
ver
Ver. 1.0 Jun. 3, 2008
3 / 27
LP141WX5
Liquid Crystal Display
Product Specification
1. General Description
The LP141WX5 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 14.1 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 LP141WX5 has been designed to apply the interface method that enables low power, high speed, low
EMI.
The LP141WX5 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
LP141WX5 characteristics provide an excellent flat display for office automation products such as Notebook
PC.
CN1 User connector 40 Pin
www.jxlcd.com
www.jxlcd.com
General Features
EDID
BLOCK
POWE
R
BLOCK
LVDS &
Timing
Control
Block
PWM & VBL
Control & Data Power EDID signal & Power
14.1 inches diagonal Active Screen Size
319.5(H) × 206.5(V) × .5.5(D,Max.) [mm]Outline Dimension
0.2373mm × 0.2373 mmPixel Pitch
1280 horiz. By 800 vert. Pixels RGB strip arrangementPixel Format
6-bit, 262,144 colorsColor Depth
220 cd/m2(Typ.5 point)Luminance, White
Total 4.2 Watt(Typ.) @ LCM circuit 1.2 Watt (Typ.), LED B/L 3.0 Watt (Typ.)Power Consumption
360g (Max.)Weight
Transmissive mode, normally whiteDisplay Operating Mode
Anti-glare treatment of the front polarizerSurface Treatment
YesRoHS Comply
1
TFT-LCD Panel
(1280 x 800)
Source Driver Circuit
LED Backlight Ass’y
1280
1
GIP(Gate In Panel)
800
Ver. 1.0 Jun. 3, 2008
4 / 27
LP141WX5
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 Notes
Power Input Voltage
Operating Temperature
Storage Temperature
Operating Ambient Humidity
Storage Humidity
Note : 1. Temperature and relative humidity range are shown in the figure below.
Wet bulb temperature should be 39C Max, and no condensation of water.
www.jxlcd.com
www.jxlcd.com
Wet Bulb
Temperature [℃]
20
10
0
Symbol
60
50
40
30
Values
MaxMin
90% 80%
60%
40%
20%
10%
Units
Humidity[(%)RH]
Storage
Operation
at 25 5CVdc4.0-0.3VCC
1C500TOP
1C60-20HST
1%RH9010HOP
1%RH9010HST
-20
Ver. 1.0 Jun. 3, 2008
10
20 30 40 50
Dry Bulb Temperature [℃]
60 70 800
5 / 27
LP141WX5
Liquid Crystal Display
Product Specification
3. Electrical Specifications
3-1. Electrical Characteristics
The LP141WX5 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 LED BL.
Table 2. ELECTRICAL CHARACTERISTICS
Parameter Symbol
MODULE :
Power Supply Input Current
Differential Impedance
LED Backlight ( With LED Driver ) :
LED Driver voltage
Operating Voltage
Power Consumption
www.jxlcd.com
www.jxlcd.com
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.
CC
Zm
DRIVER
LED
BL
Values
MaxTypMin
3.63.33.0VCC Power Supply Input Voltage
V
Hz200-PWM frequency of LED Driver
NotesUnit
DC
V-12-V
V27.225.6-V
1mA425370315I
1Watt1.401.221.04Pc Power Consumption
2Ohm11010090
4Watt3.33.0-P
5Hrs--12,000 Life Time
2. This impedance value is needed to proper display and measured form LVDS Tx to the mating connector.
3. The typical operating current is for the typical surface luminance (LWH) in optical characteristics.
I
4. The LED power consumption shown above does not include power of external LED driver circuit
for typical current condition.
5. The life time is determined as the time at which brightness of LED is 50% compare to that of initial value
at the typical LED current.
is the current of each LED’s string, LED backlight has 6 strings on it.
LED
Ver. 1.0 Jun. 3, 2008
6 / 27
LP141WX5
Liquid Crystal Display
Product Specification
3-2. Interface Connection
This LCD employs one interface connection, a 40 pin connector is used for the module electronics interface.
The electronics interface connector is a model 20347-340E-12 manufactured by I-PEX.
Table 3. MODULE CONNECTOR PIN CONFIGURATION (CN1)
NotesDescriptionSymbolPin
BIST/ Connector TestBIST/CT11
Power Supply, 3.3V Typ.VCC2
Power Supply, 3.3V Typ.VCC3
DDC 3.3V powerV EEDID4
DDC ClockClk EEDID5
DDC DataDATA EEDID6
Negative LVDS differential data inputRIN 0-7
Positive LVDS differential data inputRIN 0+8
GroundGND9
Negative LVDS differential data inputRIN 1- 10
Positive LVDS differential data inputRIN 1+11
GroundGND12
Negative LVDS differential data inputRIN 2-13
Positive LVDS differential data inputRIN 2+14
GroundGND15
Negative LVDS differential clock inputCLKIN-16
Positive LVDS differential clock inputCLKIN+17
www.jxlcd.com
www.jxlcd.com
NC No Connect21
GroundGND18
No ConnectNC19
No ConnectNC20
No ConnectNC22
No ConnectNC23
No ConnectNC24
No ConnectNC25
No ConnectNC26
No ConnectNC27
No ConnectNC28
No ConnectNC29
LED Power returnVBL-30
LED Power returnVBL-31
LED Power returnVBL-32
LED Power returnVBL-33
PWM for luminance controlBLIM34
No ConnectNC35
7V ~ 20V LED powerVBL+36
7V ~ 20V LED powerVBL+37
7V ~ 20V LED powerVBL+38
7V ~ 20V LED powerVBL+39
BIST/ Connector TestBIST/CT240
1, Interface chips
1.1 LCD : SW, SW0612 (LCD Controller)
including LVDS Receiver
1.2 System :
* Pin to Pin compatible with LVDS
2. Connector
2.1 LCD :I-PEX 20347-340E-12
(Locking type)
or equivalent
2.2 Mating : 20345-#40T-##
2.3 Connector pin arrangement
40
[LCD Module Rear View]
1
Ver. 1.0 Jun. 3, 2008
7 / 27
Product Specification
LVDS +
LVDS -
0V
V
CM
# |VID| = |(LVDS +) – (LVDS -)|
# VCM= {(LVDS +) + ( LVDS -)}/2
|VID|
V
IN_MAXVIN_MIN
LVDS Data
t
SKEW
LVDS Clock
T
clk
t
SKEW (Fclk
= 1/T
clk
)
1) 85MHz > Fclk ≥ 65MHz : -400 ~ +400
2) 65MHz > Fclk ≥ 25MHz : -600 ~ +600
3-3. LVDS Signal Timing Specifications
3-3-1. DC Specification
LP141WX5
Liquid Crystal Display
Description
LVDS Common mode Voltage
LVDS Input Voltage Range
3-3-2. AC Specification
www.jxlcd.com
www.jxlcd.com
LVDS Clock to Data Skew Margin
Symbo
l
CM
IN
SKEW
SKEW
NotesUnitMaxMin
-mV600100|VID|LVDS Differential Voltage
-V1.80.6V
-V2.10.3V
NotesUnitMaxMinSymbolDescription
ps+ 400 400-t
600-
ps+ 600t
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. 1.0 Jun. 3, 2008
SKEW_EO
DEV
MOD
- 1/7
+ 1/7t
T
clk
%± 3-F
KHz200-F
-
-
-
8 / 27
LVDS Even Data
LVDS Odd Clock
LVDS Even Clock
t
SKEW_EO
T
clk
T
clk
Freq.
F
max
F
center
F
min
Product Specification
< Clock skew margin between channel >
LP141WX5
Liquid Crystal Display
F
* F
center
DEV
www.jxlcd.com
www.jxlcd.com
3-3-3. Data Format
- LVDS 1 Port
RCLK+
RA+/-
RB+/-
RC+/-
RD+/-
R3 R2
G4 G3
B5 B4
G7 G6
Previous (N-1)th Cycle Next(N+1)th Cycle
R1 R0
G2 G1
B3 B2
R7 R6
1
F
MOD
< Spread Spectrum >
G0 R5 R4 R3 R2 R1 R0
B1 B0 G5 G4 G3 G2 G1
DE VSYNC HSYNC B5 B4 B3 B2
X B7 B6 G7 G6 R7 R6
Current (Nth) Cycle
Time
G0
B1
DE
VSYNC HSYNC
X
R5 R4
B0 G5
B7 B6
Ver. 1.0 Jun. 3, 2008
< LVDS Data Format >
9 / 27
Loading...