LG LP-154WE2-TLB2 Service manual

Product Specification

SPECIFICATION

LP154WE2

Liquid Crystal Display

(◆ ) Preliminary Specification
( ) Final Specification

Title

BUYER
MODEL

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FOR

APPROVAL

15.4” WSXGA+ TFT LCD

DELL SUPPLIER

*MODEL

SUFFIX

*When you obtain standard approval,
please use the above model name without suffix

LG.Philips LCD CO., Ltd.
LP154WE2

TLB2

SIGNATURE DATE

/

/

/

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

Ver. 0.2 Mar. 14, 2007

APPROVED BY

S. C. Yoon S.Manager

REVIEWED BY

Y.S. Ha Manager

PREPARED BY

S. H. Jang Engineer

/

/

/

Product Engineering Dept.

LG. Philips LCD Co., Ltd

SIGNATURE

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LP154WE2

Liquid Crystal Display

Product Specification

NO. ITEM Page

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-

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COVER
CONTENTS
RECORD OF REVISIONS

1
2

3
1
2
3

3-1
3-2

4
5

6
7

8

9

GENERAL DESCRIPTION
ABSOLUTE MAXIMUM RATINGS

ELECTRICAL SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
INTERFACE CONNECTIONS

3-3

SIGNAL TIMING SPECIFICATIONS

3-4

SIGNAL TIMING WAVEFORMS
COLOR INPUT DATA REFERENCE

3-5

POWER SEQUENCE

3-6

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OPTICAL SPECIFICATIONS
MECHANICAL CHARACTERISTICS
RELIABILITY

INTERNATIONAL STANDARDS

7-1

SAFETY
EMC

7-2

PACKING
DESIGNATION OF LOT MARK

8-1
8-2

PAKING FORM
PRECAUTIONS

4

5

6

8
10
11

12
13
14

18

22

23
23

24

24

25

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Product Specification

RECORDS OF REVISIONS

LP154WE2

Liquid Crystal Display

DescriptionPageRevision DateRevision No

The first draft-Feb, 22. 20070.1

-Mar, 14. 20070.2

The 2’nd draft

General Feature Updated (Anti-glare  Glare)P.4
Label Updated at rear view drawing.p.20

-. Dell P/N Updated.

-. China Rohs Mark inserted.

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EDID

ver

0.0

0.0

-

-

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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 display 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.

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General Features

Active screen size
Outline Dimension
Pixel Pitch

Pixel format
Color depth
Luminance, white
Power Consumption
Weight
Display operating mode

Surface treatments

LVDS &
Timing

Control

Block

POWER

BLOCK

EDID

BLOCK

Control & Data Power EDID signal & Power

15.4 inches diagonal

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

0.19725 mm x 0.19725mm
1680 horiz. By 1050 vert. Pixels RGB stripes arrangement

6-bit, 262,144 colors
200 cd/m2(typ.), 5p average
Total: 6.15W(Typ.)@ LCM circuit 1.73.W(Typ.) ,B/L input 4.42 W (Typ.)

590g (Max.) without inverter& Bracket
Transmissive mode, normally white
Glare treatment of the front polarizer, HAZE 0%

(LOG_B type)

1

Gate Driver

1050

Source Driver Circuit

1 1680

TFT-LCD Panel

(1680 x 1050)

Backlight Ass’y

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Liquid Crystal Display

Product Specification

2. Absolute Maximum Ratings

The following are maximum values which, if exceeded, may cause operation or damage to the unit.

Table 1. ABSOLUTE MAXIMUM RATINGS

LP154WE2

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 °C Max, and no condensation of water.

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Wet Bulb
Temperature [℃]

10

0

20

V

CC

T

OP

T

ST

H

OP

H

ST

50

40

30

Values

Min. Max.

-0.3
0

-20
10
10

90% 80%

60

4.0
50
60
90
90

Units Notes

Vdc

°C

°C
%RH
%RH

60%

Humidity[(%)RH]

Storage

40%

Operation

20%

10%

At 25  5°C

1
1
1
1

-20

Ver. 0.2 Mar. 14, 2007

10

20 30 40 50

Dry Bulb Temperature [℃]

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 Voltage
Power Supply Input Current
Differential Impedance
Power Consumption

LAMP
Operating Voltage
Operating Current
Established Starting Voltage
at 25 °C
at 0 °C
Operating Frequency
Discharge Stabilization Time
Power Consumption
Life Time

Note : The design of the inverter must have specification for the lamp in LCD Assembly.
The performance of the Lamp in LCM, for example life time or brightness, is extremely influenced by the
characteristics of the DC-AC inverter. So all the parameters of an inverter should be carefully designed
so as not to produce too much leakage current from high-voltage output of the inverter.
When you design or order the inverter, please make sure unwanted lighting caused by the mismatch of
the lamp and the inverter(no lighting, flicker, etc) never occurs. When you confirm it, the LCD Assembly
should be operated in the same condition as installed in you instrument.

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V

I

CC

Zm

P

V

I
V

f

T

P

CC

C

BL

BL

S

BL

S

BL

Min. Max.

3.0

-

90

665

2.0

-

-

45

-

15,000

Values

Typ.

3.3
525
100

1.73

680

6.5

-

-

60

4.42

-

3.6
605
110

2.18

895

7.0

1170
1400

80

3

4.65

-

Units

Vdc

mA

ohm

Watts

V

RMS

mA

V

RMS

V

RMS

kHz

Minutes

Watts

Hrs

Notes

1
2
1

3
4

5
6
7
8

1. The specified current and power consumption are under the VCC=3.3V, 25°C,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 from LVDS TX to the mating connector.

3. The variance of the voltage is  10%.

4. The voltage above VS should be applied to the lamps for more than 1 second for start-up.
Otherwise, the lamps may not be turned on.

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LP154WE2

Liquid Crystal Display

Product Specification

5. 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.

6. 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%.

7. The lamp power consumption shown above does not include loss of external inverter.
The used lamp current is the lamp typical current.

8. The life is determined as the time at which brightness of the lamp is 50% compared to that of initial
value at the typical lamp current on condition of continuous operating at 25  2°C.

9. 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.

10. 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.

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I p

I -p

* Asymmetry rate:
| I p – I –p | / I
* Distortion rate
I p (or I –p) / I

rms

rms

* 100%

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LP154WE2

Liquid Crystal Display

Product Specification

3-2. Interface Connections

Interface chip must be used FlatLink, part No. THC63LVDF823A(Transmitter made by Thine Inc or
equivalence.
This LCD employs two interface connections, a 30-pin-connector is used for the module electronics and the
other connector is used for the integral backlight system.
The electronics interface connector is a model FI-XB30SR-HF11 manufactured by JAE or equivalent.
The pin configuration for the connector is shown in the table below.

Table 3. MODULE CONNECTOR PIN CONFIGURATION(LVDS)

Pin Symbol Description Notes

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

GND

Vcc
Vcc

VEDID

NC

CLKEDID

DATAEDID

Odd_A1M
Odd_A1P

GND
Odd_A2M
Odd_A2P

GND
Odd_A3M
Odd_A3P

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GND

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Odd_CLKM

Odd_CLKP

GND

Even_A1M

Even_A1P

GND

Even_A2M

Even_A2P

GND

Even_A3M

Even_A3P

GND

Even_CLKM

Even_CLKP

Ground
Power(3.3V)
Power(3.3V)

DDC 3.3V Power

No connect

DDC clock

DDC data
Differential Signal
Differential Signal

Ground
Differential Signal
Differential Signal

Ground
Differential Signal
Differential Signal

Ground
Differential Signal
Differential Signal

Ground
Differential Signal
Differential Signal

Ground
Differential Signal
Differential Signal

Ground
Differential Signal
Differential Signal

Ground
Differential Signal
Differential Signal

1. Interface chips

1.1 LCD : DTML012(LCD Controller)
including LVDS Receiver

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

2. Connector

2.1 LCD : FI-XB30SR-HF11,JAE or equivalent

2.2 Mating : FI-X30M or equivalent.

2.3 Connector pin arrangement

1

Viewing on Display side

30

CN1

CN2

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LP154WE2

Liquid Crystal Display

Product Specification

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.
The pin configuration for the connector is shown in the table below.

Table 4. BACKLIGHT CONNECTOR PIN CONFIGURATION

Pin Symbol Description Notes

1
2

Notes : 1. The high voltage side terminal is colored Pink, The low voltage side terminal is Green.

HV

LV

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Power supply for lamp

(High voltage side)

Power supply for lamp

(Low voltage side)

1
1

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