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LP-141WX3-TLR1
Service manual
32 pgs1.44 Mb0

LG LP-141WX3-TLR1 Service manual

( ) Preliminary Specification
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Datasheet pdf - http://www.DataSheet4U.co.kr/
( ) Final Specification
◆
LP141WX3
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
Customer General
MODEL
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APPROVED BY SIGNATURE
/
/
/
SUPPLIER LG Display Co., Ltd.
*MODEL LP141WX3
Suffix TLR1
*When you obtain standard approval,
please use the above model name without suffix
APPROVED BY
K. J. Kwon / G.Manager
REVIEWED BY
S.R. Kim / Manager
PREPARED BY
K. T. Moon / Engineer
SIGNATURE
Please return 1 copy for your confirmation with your signature and comments.
Ver. 1.0 Apr. 24, 2008
Products Engineering Dept.
LG Display Co., Ltd
1/ 32
Product Specification
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Contents
LP141WX3
Liquid Crystal Display
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
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3-6 COLOR INPUT DATA REFERNECE 3-7 POWER SEQUENCE
4 OPTICAL SFECIFICATIONS
Page
1 2 3 4 5
6 8
9 11 11 12 13 14
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
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25 25
26 26 27 29
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RECORD OF REVISIONS
LP141WX3
Liquid Crystal Display
Revision No Revision Date Page Description
0.0 Sept. 20. 2007 - First Draft (Preliminary Specification) 0.0
0.1 Oct. 01. 2007 29 Update EDID data 0.1
→ Update Vender/Product ID part → Add Detailed Timing description #2,#3
0.2 Oct. 15. 2007 11 Add Appendix 19 Rear view drawing update
14,15 Update Luminance Variation(5point)
27 Add Label description page
1.0 Apr. 4, 2008 All First specification 1.0 14 Add color coordinate spec. 15 Add Gray scale spec. 27
Add the Label description
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1.1 Apr. 24, 2008 8 Changing mating connector part number 1.0
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30-32
Update the EDID data
EDID
ver
Ver. 1.0 Apr. 24, 2008
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LP141WX3
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Liquid Crystal Display
Product Specification
1. General Description
The LP141WX3 is a Color Active Matrix Liquid Crys tal Display with an integral Cold Cathode Fluo rescent 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 14.1 inches diagonally measured active display area with WXGA resolution (800 vertical by 1280 horizontal pixel array) . Each pixe l is divided into Red, Green and Blue sub-pixels or dots wh ich are arranged in vertical str ipes. 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 LP141WX3 has been designed to apply the interface me thod that enables low power, high speed, low EMI.
The LP141WX3 is intended to support applications where thin thickness, low power are critical factor s and graphic displays are important. In combination with the vertical arrangement of the sub-pixels, the LP141WX3 characteristics prov ide an excellent flat display for office automation products such as Notebook PC.
CN
1
User connector
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30 Pin
CN
Control & Data Power EDID signal & Power
LVDS & Timing
Control
Block
POWER
BLOCK
EDID
BLOCK
Source Driver Circuit
1
1
GIP(Gate In Panel)
TFT-LCD Panel
(1280 x 800)
800
Backlight Ass’y
General Features
Active Screen Size 14.1 inches diagonal Outline Dimension Pixel Pitch 0.2373mm ×
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 5.2 Watt(Typ.) @ LCM circuit 1.2 Watt(Typ.), B/L input 4.0 Watt(Typ.)
Weight 415g(Max.) Display Operating Mode Transmissive mode, normally white Surface Treatment Haze44% (ARC150T)
RoHS Comply Yes
319.5(H,Typ.) ×
0.2373 mm
2
(Typ.5 point)
205.5(V,Typ.) ×
5.5(D,Max) [mm]
1280
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LP141WX3
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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 Symbol
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 39
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Wet Bulb Temperature [℃]
20
10
0
VCC -0.3 4.0 Vdc at 25 ±
TOP 0 50 °C 1 HST -20 60 °C 1
HOP 10 90 %RH 1
HST 10 90 %RH 1
°C Max, and no condensation of water.
50
40
30
Values
Min Max
90% 80%
60
Units Notes
60%
Humidity[(%)RH]
Storage
40%
Operation
20%
10%
5°C
-20
Ver. 1.0 Apr. 24, 2008
10
20 30 40 50
Dry Bulb Temperature [℃]
60 70 800
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LP141WX3
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Liquid Crystal Display
Product Specification
3. Electrical Specifications 3-1. Electrical Characteristics
The LP141WX3 requires two power inputs. One is employed to power the LCD electronic s 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 u nit to t h e LCD.
Table 2. ELECTRICAL CHARACTERISTICS
Parameter Symbol
MODULE :
Power Supply Input Voltage VCC 3.0 3.3 3.6 V Power Supply Input Current
(window Desk Top Pattern)
Power Consumption
(window Desk Top Pattern)
Differential Impedance Zm 90 100 110 Ohm 2
LAMP :
Operating Voltage V Operating Current I Power Consumption P Operating Frequency f Discharge Stabilization Time Ts 3 Min 4 Life Time 15,000 Hrs 5
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I
CC
Pc -
BL
BL
BL
BL
Min Typ Max
-
640(7.0mA) 670(6.0mA) 880(2.0mA) V
2.0 6.0 7.0 mA
1.8 4.0 4.5 W 45 55 80 kHz
Values
400
(355)
1.32 (1.2)
460
(405)
1.52
(1.34)
Unit Notes
DC
mA 1
Watt 1
RMS
RMS
3
Established Starting Voltage
at 25℃ at 0 ℃
Vs 1180
1415
V
RMS
V
RMS
Note)
1. The specified current and power consumption are under the Vcc = 3.3V , 25℃, fv = 60Hz condition whereas Full Black(window Desk Top) pattern is displayed and fv is the frame frequency.
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 (L
) in optical characteristics.
WH
4. 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%.
5. The life time is determined as the time at which brightness of lamp is 50% compare to that of initial value at the typical lamp current.
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Liquid Crystal Display
Product Specification
Note)
6. The output of the inverter must have symmetrical(negative and positive) voltage waveform and symmetrical current waveform.(Asymmetrical ratio is less than 10%) Please do not use the inverter which has asymmetrical voltage and asymmetrical current and spike wave. Lamp frequency may produce interface 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.
7. It is defined the brightness of the lamp after being lighted for 5 minutes as 100%. is the time required for the brightness of the center of the lamp to be not less than 95%.
T
S
8. The lamp power consumption shown above does not include loss of external inverter.
The applied lamp current is a typical one.
9. 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:
I p
| I
p
–I
–p
| / I
rms
* 100%
I -p
10. Inverter open voltage must be more than lamp voltage for more than 1 second for start-up. Otherwise, the lamps may not be turned on.
※
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.
Ex of current wave)
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Do not attach a conducting tape to lamp connecting wire.
Normal current wave - Standard
* Distortion rate
I
(or I
p
) / I
–p
rms
Abnormal current wave - Bad
Abnormal current wave - Bad
Ver. 1.0 Apr. 24, 2008
Abnormal current wave - Bad
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LP141WX3
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Liquid Crystal Display
Product Specification
3-2. Interface Connections
This LCD employs two interface connections, a 30 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 GT101-30S-HR11 manufactured by LSC.
Table 3. MODULE CONNECTOR PIN CONFIGURATION (CN1)
Pin Symbol Description Notes
1 GND Ground 2 VCC Power Supply, 3.3V Typ. 3 VCC Power Supply, 3.3V Typ. 4 V EEDID DDC 3.3V power
5 6 Clk EEDID DDC Clock
7 DATA EEDID DDC Data 8 R
9 R 10 GND Ground 11 R 12 R 13 GND Ground 14 R 15 R 16 GND Ground 17 CLKIN- Negative LVDS diff er enti al clock input 18 CLKIN+ Positive LVDS differential clock input 19 GND Ground 20 NC No Connect 21 NC No Connect 22 GND Ground 23 NC No Connect 24 NC No Connect 25 GND Ground 26 NC No Connect 27 NC No Connect 28 GND Ground 29 NC No Connect 30 NC No Connect
Test Panel Self Test
0- Negative LVDS differential data input
IN
0+ Positive LVDS differential data input
IN
1- Negative LVDS differential data input
IN
1+ Positive LVDS differential data input
IN
2- Negative LVDS differential data input
IN
2+ Positive LVDS differential data input
IN
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The backlight interface connector is a model BHSR-02VS-1, manufactured by JST. The mating connector part number is SM02B-BHSS-1 or equivalent.
Table 4. BACKLIGHT CONNECTOR PIN CONFIGURATION (J3)
1, Interface chips
1.1 LCD : SW, SW0612B (LCD Controller) including LVDS Receiver
1.2 System : THC63LVD823A or equivalent
* Pin to Pin compatible with LVDS
2. Connector
2.1 LCD : GT101-30S-HR11, LSC
2.2 Mating : FI-X30M or equivalent.
2.3 Connector pin arrangement
30
[LCD Module Rear View]
PIN1
PIN2PIN2
1
Pin Symbol Description Notes
1 HV Power supply for lamp (High voltage side) 1 2 LV Power supply for lamp (Low voltage side) 1
Notes : 1. The high voltage side terminal is colored Dark gray and the low voltage side terminal is Yellow.
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3-3. LVDS Signal Timing Specifications
3-3-1. DC Specification
LP141WX3
Liquid Crystal Display
Description
LVDS Differential Voltage |V LVDS Common mode Voltage V LVDS Input Voltage Range V
3-3-2. AC Specification
LVDS Clock to Data Skew Margin
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Description Symbol Min Max Unit Notes
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
Ver. 1.0 Apr. 24, 2008
t
SKEW_EO
F
DEV
F
MOD
-1/7 + 1/7 T
- ±
- 200 KHz -
3 % -
clk
-
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Freq.
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F
max
F
center
F
min
Product Specification
< Clock skew margin between channel >
LP141WX3
Liquid Crystal Display
F
* F
center
DEV
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3-3-3. Data Format
1) 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 VSYNCHSYNC 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
< LVDS Data Format >
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