LG LP-154WU1-TLA1 Service manual

Product Specification

SPECIFICATION

LP154WU1

Liquid Crystal Display

FOR

APPROVAL

)

(
(

Preliminary Specification

◆

)

Final Specification

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15.4” WUXGA TFT LCDTitle

DELLCustomer

LP154WU1-TLA1MODEL

*When you obtain standard approval,

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please use the above model name without suffix

LG.Philips LCD Co., Ltd.SUPPLIER
LP154WU1*MODEL
TLA1Suffix

SIGNATUREAPPROVED BY

/

/

/

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

Ver. 1.2 Sep. 29, 2007

APPROVED BY

S.C. Yoon / G.Manager

REVIEWED BY

Y.S.Ha / Manager

/ Manager

PREPARED BY

P.A.Choi / Engineer

/ Engineer

Products Engineering Dept.

LG. Philips LCD Co., Ltd

SIGNATURE

1 / 32

Product Specification

Contents

LP154WU1

Liquid Crystal Display

ITEMNo

COVER
CONTENTS
RECORD OF REVISIONS
GENERAL DESCRIPTION1
ABSOLUTE MAXIMUM RATINGS2

ELECTRICAL SPECIFICATIONS3
ELECTRICAL CHARACTREISTICS 3-1

INTERFACE CONNECTIONS 3-2
SIGNAL TIMING SPECIFICATIONS 3-3
SIGNAL TIMING WAVEFORMS 3-4
COLOR INPUT DATA REFERNECE 3-5

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POWER SEQUENCE 3-6
OPTICAL SFECIFICATIONS4
MECHANICAL CHARACTERISTICS5

Page

1
2
3
4
5

6

8
12
12
13
14
15
18

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

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Product Specification

RECORD OF REVISIONS

LP154WU1

Liquid Crystal Display

DescriptionPageRevision DateRevision No

First Draft.Feb.8.20071.0
Dclk FrequencyApril.16.20071.1
EDID Update (Dclk Frequency)Sep.21.20071.2

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EDID

ver

0.3

0.3

0.4

Ver. 1.2 Sep. 29, 2007

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LP154WU1

Liquid Crystal Display

Product Specification

1. General Description

The LP154WU1 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 WXGA resolution(1200 vertical by 1920 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 LP154WU1 has been designed to apply the interface method that enables low power, high speed, low
EMI.
The LP154WU1 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
LP154WU1 characteristics provide an excellent flat display for office automation products such as Notebook
PC.

CN1 User connector 30 Pin

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J1

General Features

LVDS &

Timing

Control

Block

POWE

R

BLOCK

EDID

BLOCK

Inverter

Control & Data Power EDID signal & Power

15.4 inches diagonal Active Screen Size

344.0 (H) × 222.0 (V) × 6.5(D, max) mmOutline Dimension

0.1725 mm × 0. 1725 mm Pixel Pitch
1920 horiz. by 1200 vert. Pixels RGB strip arrangementPixel Format
6-bit, 262,144 colorsColor Depth
210 cd/m2(Typ.) , 5 pointLuminance, White
Total 6.27 Watt(Typ.) @ LCM circuit 1.85 Watt(Typ.), B/L input 4.42 Watt(Typ.)Power Consumption

575 g (Max.) without inverter & bracketWeight
Transmissive mode, normally whiteDisplay Operating Mode
Anti-glare treatment of the front polarizerSurface Treatment

YesRoHS Comply

(LOG_B type)

CN2

1

Gate Driver

1200

Source Driver Circuit

1 1920

TFT-LCD Panel

(1920 x 1200)

Backlight Ass’y

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LP154WU1

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

-20

Ver. 1.2 Sep. 29, 2007

10

20 30 40 50

Dry Bulb Temperature [℃]

60 70 800

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LP154WU1

Liquid Crystal Display

Product Specification

3. Electrical Specifications
3-1. Electrical Characteristics

The LP154WU1 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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Mosaic 1mA640560480

I

CC

BL

BL

BL

BL

Values

DC

RMS

RMS

NotesUnit

1Watt2.121.851.58Pc 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

835(3.0mA)680(6.5mA)665(7.0mA)V

7.06.53.0I

4.64.2-P

V

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. 1.2 Sep. 29, 2007

Vs

1200
1500

V

RMS

V

RMS

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LP154WU1

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

Abnormal current wave - Bad

Ver. 1.2 Sep. 29, 2007

Abnormal current wave - Bad

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LP154WU1

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

1, Interface chips

1.1 LCD : SW0610_M(LCD Controller)
including LVDS Receiver

1.2 System : THC63LVD823A or equivalent
* Pin to Pin compatible with THINE LVDS

2. Connector

2.1 LCD : MDF76LBRW-30S-1H (HIROSE)
or
its compatibles

2.2 Mating : FI-X30M or equivalent.

2.3 Connector pin arrangement

30

[LCD Module Rear View]

1

10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

4
5
6
7
8
9

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RA2+ Even channel differential data input

DDC 3.3V powerV EEDID

Reserved for supplier test pointNC

DDC ClockClk EEDID

DDC DataDATA EEDID

Odd channel differential data inputRIN 0-

Odd channel differential data inputRIN 0+

GroundGND

Odd channel differential data inputRIN 1-

Odd channel differential data inputRIN 1+

GroundGND

Odd channel differential data inputRIN 2-

Odd channel differential data inputRIN 2+

GroundGND

Odd channel differential clock inputCLKIN-

Odd channel differential clock inputCLKIN+

GroundGND

Even channel differential data inputRA2-

GroundGND

Even channel differential data inputRB2-

Even channel differential data inputRB2+

GroundGND

Even channel differential data inputRC2-

Even channel differential data inputRC2+

GroundGND

Even channel differential clock inputRCLK2-

Even channel differential clock inputRCLK2+

The backlight interface connector is a model BHSR-02VS-1, manufactured by JST or Compatible.
The mating connector part number is SM02B-BHSS-1 or equivalent.

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 black and the low voltage side terminal is white.

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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

LP154WU1

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. 1.2 Sep. 29, 2007

SKEW_EO

DEV

MOD

- 1/7

+ 1/7t

T

clk

%± 3-F

KHz200-F

-

-

-

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LVDS Even Data

LVDS Odd Clock

LVDS Even Clock

t

SKEW_EO

T

clk

T

clk

OG0 OR5 OR4 OR3 OR2 OR1 OR0

OB1 OB0 OG5 OG4 OG3 OG2 OG1

DE VSYNC HSYNC OB5 OB4 OB3 OB2

X OB7 OB6 OG7 OG6 OR7 OR6

Current(Nth) CyclePrevious(N-1)th Cycle Next(N+1)th Cycle

RCLK +

RXinO0 +/-

Tclk * 4/7 Tclk * 3/7

Tclk

Tclk * 1/7

MSB R7

R6
R5
R4
R3
R2
R1
R0LSB

EG0 ER5 ER4 ER3 ER2 ER1 ER0

EB1 EB0 EG5 EG4 EG3 EG2 EG1

DE

VSYNC HSYNC

EB5 EB4 EB3 EB2

X EB7 EB6 EG7 EG6 ER7 ER6

* ODD = 1st Pixel
EVEN = 2nd Pixel

RXinO1 +/-

RXinO2 +/-

RXinO3 +/-

RXinE0 +/-

RXinE1 +/-

RXinE2 +/-

RXinE3 +/-

OR3 OR2 OR1 OR0

OG4 OG3 OG2 OG1

OB5 OB4 OB3 OB2

OG7 OG6 OR7 OR6

ER3 ER2 ER1 ER0

EG4 EG3 EG2 EG1

EB5 EB4 EB3 EB2

EG7 EG6 ER7 ER6

OG0 OR5 OR4

OB1 OB0 OG5

DE VSYNC HSYNC

X OB7 OB6

EG0 ER5 ER4

EB1 EB0 EG5

DE

VSYNC HSYNC

X EB7 EB6

Freq.

F

max

F

center

F

min

Product Specification

< Clock skew margin between channel >

LP154WU1

Liquid Crystal Display

F

* F

center

DEV

3-3-3. Data Format

1) LVDS 2 Port

Ver. 1.2 Sep. 29, 2007

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< Spread Spectrum >

< LVDS Data Format >

1

F

MOD

Time

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