LG LP-154WE2-TLA4 Service manual

Product Specification

SPECIFICATION

LP154WE2

Liquid Crystal Display

FOR

APPROVAL

)

(
(

Preliminary Specification

)

Final Specification

◆

MODEL

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15.4” WSXGA+ TFT LCDTitle

GeneralCustomer

*When you obtain standard approval,

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please use the above model name without suffix

LG.Philips LCD Co., Ltd.SUPPLIER
LP154WE2*MODEL
TLA4Suffix

SIGNATUREAPPROVED BY

/

/

/

Please return 1 copy for your confirmation with
your signature and comments.

Ver. 1.0

Feb.20, 2008

APPROVED BY

S.C. Yoon S.Manager

REVIEWED BY

Y. S. Ha Manager

PREPARED BY

S. H. Jang Engineer

Products Engineering Dept.

LG. Philips LCD Co., Ltd

SIGNATURE

1 / 31

Product Specification

Contents

LP154WE2

Liquid Crystal Display

ITEMNo

COVER
CONTENTS
RECORD OF REVISIONS
GENERAL DESCRIPTION1
ABSOLUTE MAXIMUM RATINGS2

ELECTRICAL SPECIFICATIONS3
ELECTRICAL CHARACTREISTICS 3-1

INTERFACE CONNECTIONS 3-2
LVDS SIGNAL TIMING SPECIFICATIONS 3-3
SIGNAL TIMING SPECCIFICATIONS 3-4
SIGNAL TIMING WAVEFORMS 3-5

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COLOR INPUT DATA REFERNECE 3-6
POWER SEQUENCE 3-7
OPTICAL SFECIFICATIONS4

Page

1
2
3
4
5

6
8

9
11
11
12
13
14

Ver. 1.0

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

Feb.20, 2008

17
24

25
25

26
26
27
29

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Product Specification

RECORD OF REVISIONS

LP154WE2

Liquid Crystal Display

DescriptionPageRevision DateRevision No

First Draft (Preliminary Specification)-Feb.20. 20080.0

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EDID

ver

0.0

0.1

Ver. 1.0

Feb.20, 2008

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LP154WE2

Liquid Crystal Display

Product Specification

1. General Description

The LP154WE2 is a Color Active Matrix Liquid Crystal Display with an integral Cold Cathode Fluorescent
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 15.4 inches diagonally
measured active display area with WSXGA+ resolution(1680 vertical by 1050 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 LP154WE2 has been designed to apply the interface method that enables low power, high speed, low
EMI. Flat Link must be used as a LVDS(Low Voltage Differential Signaling) chip.
The LP154WE2 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
LP154WE2 characteristics provide an excellent flat display for office automation products such as Notebook
PC.

CN1 User connector 30 Pin

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CN

General Features

Outline Dimension

LVDS &
Timing

Control

Block

POWER

BLOCK

EDID

BLOCK

Control & Data Power EDID signal & Power

15.4 inches diagonal Active Screen Size

344.0(H, typ) × 222.0(V, typ) × 6.5(D) mm[Max.]

0.19725 mm x 0.19725mmPixel Pitch
1680 horiz. By 1050 vert. Pixels RGB stripes arrangementPixel Format
6-bit, 262,144 colorsColor Depth
200 cd/m2(Typ.5 point)Luminance, White

5.66 (Typ.) (Mosaic Pattern@ LCM circuit 1.52.W(Typ.) ,B/L input 4.14 W (Typ.)Power Consumption
590g(Max.)Weight
Transmissive mode, normally whiteDisplay Operating Mode
Anti-glare treatment of the front polarizer (HAZE 44%)Surface Treatment

YesRoHS Comply

(LOG_B type)

1050

1

Source Driver Circuit

1

TFT-LCD Panel

(1680 x 1050)

Backlight Ass’y

1680

Ver. 1.0

Feb.20, 2008

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LP154WE2

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 39C Max, and no condensation of water.

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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  5CVdc4.0-0.3VCC

1C500TOP
1C60-20HST
1%RH9010HOP
1%RH9010HST

Ver. 1.0

-20

10

20 30 40 50

Dry Bulb Temperature [℃]

Feb.20, 2008

60 70 800

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LP154WE2

Liquid Crystal Display

Product Specification

3. Electrical Specifications
3-1. Electrical Characteristics

The LP154WE2 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 CCFL, is typically generated by an

inverter. The inverter is an external unit to the LCD.

Table 2. ELECTRICAL CHARACTERISTICS

Parameter Symbol

MODULE :

Power Supply Input Current

LAMP :
Operating Voltage
Operating Current
Power Consumption
Operating Frequency

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I

CC

Mosaic

Black

Window XP

Bliss Pattern

BL

BL

BL

BL

Values

DC

RMS

RMS

NotesUnit

1mA530460390

1Watt1.761.52-Pc Power Consumption
2Ohm11010090Zm Differential Impedance

3mA

4Min3--Ts Discharge Stabilization Time
5Hrs--12,000 Life Time

MaxTypMin

3.63.33.0VCC Power Supply Input Voltage

820690660V

7.06.03.0I

4.624.14-P

V

mA640550460
mA540470400

V

kHz806045f

Established Starting Voltage
at 25℃
at 0 ℃

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. 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.

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.

Ver. 1.0

Vs

Feb.20, 2008

1200
1380

V

RMS

V

RMS

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LP154WE2

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%.
TS is the time required for the brightness of the center of the lamp to be not less than 95%.

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

* 100%

rms

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.
※ Do not attach a conducting tape to lamp connecting wire.
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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Normal current wave - Standard

I -p

* Distortion rate
I p (or I –p) / I

Abnormal current wave - Bad

rms

Ver. 1.0

Abnormal current wave - Bad

Feb.20, 2008

Abnormal current wave - Bad

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LP154WE2

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)

NotesDescriptionSymbolPin

GroundGND1
Power Supply, 3.3V Typ.VCC2
Power Supply, 3.3V Typ.VCC3
DDC 3.3V powerV EEDID4
Reserved for supplier test pointNC5
DDC ClockClk EEDID6
DDC DataDATA EEDID7
Negative LVDS differential data inputODD_R

0-8

IN

Positive LVDS differential data inputODD_RIN0+9
GroundGND10
Negative LVDS differential data inputODD_RIN 1- 11
Positive LVDS differential data inputODD_RIN 1+12
GroundGND13
Negative LVDS differential data inputODD_RIN 2-14
Positive LVDS differential data inputODD_RIN 2+15
GroundGND16
Negative LVDS differential clock inputODD_CLKIN-17

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EVEN_RIN0+ Positive LVDS differential data input21

Positive LVDS differential clock inputODD_CLKIN+18
GroundGND19
Negative LVDS differential data inputEVEN_R

0-20

IN

GroundGND22
Negative LVDS differential data inputEVEN_RIN 1- 23
Positive LVDS differential data inputEVEN_RIN 1+24
GroundGND25
Negative LVDS differential data inputEVEN_RIN 2-26
Positive LVDS differential data inputEVEN_RIN 2+27
GroundGND28
Negative LVDS differential clock inputEVEN_CLKIN-29
Positive LVDS differential clock inputEVEN_CLKIN+30

The backlight interface connector is a model BHSR-02VS-1, manufactured by JST or Compatible.
The mating connector part number is AMP1674817-2 or equivalent.

1, Interface chips

1.1 LCD : SW0610_M (LCD Controller)
including LVDS Receiver

1.2 System : THC63LVD823 or equivalent
* Pin to Pin compatible with LVDS

2. Connector

2.1 LCD :IS100-C30R-C15 ,UJU Elec.
GT101-30S-HR11,LS Cable
its compatibles

2.2 Mating : FI-X30M or equivalent.

2.3 Connector pin arrangement

30

[LCD Module Rear View]

1

PIN1

PIN2PIN2

Table 4. BACKLIGHT CONNECTOR PIN CONFIGURATION (J3)

NotesDescriptionSymbolPin

1Power supply for lamp (High voltage side)HV1
1Power supply for lamp (Low voltage side)LV2

Notes : 1. The high voltage side terminal is colored Blue and the low voltage side terminal is Black.

Ver. 1.0

Feb.20, 2008

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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

LP154WE2

Liquid Crystal Display

Description

LVDS Common mode Voltage
LVDS Input Voltage Range

3-3-2. AC Specification

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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

SKEW_EO

DEV

MOD

Feb.20, 2008

- 1/7

+ 1/7t

T

clk

%± 3-F

KHz200-F

-

-

-

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LP154WE2

Liquid Crystal Display

Product Specification

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.

Table 6. TIMING TABLE

NoteUnitMaxTypMinSymbolITEM

FrequencyDCLK

Vsync

Data

Enable

3-5. Signal Timing Waveforms

Horizontal back porch

Horizontal front porch

Vertical back porch

Vertical front porch

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Data Enable, Hsync, Vsync

DCLK

tCLK

0.5 Vcc

f

CLK

ThpPeriodHsync

tWH Width

t

Width-Active

WHA

tVP Period

tWV Width

t

Width-Active

WVA

t

HBP

t

HFP

t

VBP

t

VFP

High: 0.7VCC

Low: 0.3VCC

-61.0-

MHz

1288952864

-328

tCLK

840840840

108210661057

-31

tHP

105010501050

-648

-168

tCLK

-125

-11

tHP

Condition : VCC =3.3V

Hsync

t

WH

Data Enable

t

WV

Vsync

Data Enable

Ver. 1.0

t

VBP

t

HBP

t

HP

t

VP

Feb.20, 2008

tWHA

tWVA

t

t

HFP

VFP

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