LG LM-230WF5-TLB1 Service manual

( ) Preliminary Specification
( ◆ ) Final Specification

LM230WF5

Liquid Crystal Display

Product Specification

SPECIFICATION

FOR

APPROVAL

23” Full HD TFT LCDTitle

BUYER HP
MODEL

www.jxlcd.com

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SIGNATURE DATE

/

/

/

SUPPLIER LG Display Co., Ltd.

*MODEL LM230WF5

SUFFIX TLB1

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

APPROVED BY

K.G. PARK / G.Manager

REVIEWED BY

H.S. KIM / Manager [C]

S.Y. AN / Manager [M]

C.S. SHIN / Manager [P]

PREPARED BY

J.Y. Bae / Engineer

DATE

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

Ver. 1.0

Ver. 1.0 Mar. 17, 2010

Product Engineering Dept.

LG Display Co., Ltd

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Product Specification

Contents

LM230WF5

Liquid Crystal Display

No

ITEM

COVER
CONTENTS
RECORD OF REVISIONS
GENERAL DESCRIPTION
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL SPECIFICATIONS

1)

ELECTRICAL CHARACTERISTICS

2)

INTERFACE CONNECTIONS

4)

SIGNAL TIMING SPECIFICATIONS

5)

SIGNAL TIMING WAVEFORMS

6)

COLOR INPUT DATA REFERNECE

7)

POWER SEQUENCE

8)

POWER DIP CONDITION
OPTICAL SPECIFICATIONS

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MECHANICAL CHARACTERISTICS

Page

1
2
3
41
52
63
6

8
11LVDS characteristics3)
14

15
16
17
18
194
245

RELIABILITY
INTERNATIONAL STANDARDS

1)

SAFETY

2)

EMC
PACKING

1)

DESIGNATION OF LOT MARK

2)

PACKING FORM

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276
287
28
28
298
29
29
30PRECAUTIONS9
30MOUNTING PRECAUTIONS1)
30OPERATING PRECAUTIONS2)
31ELECTROSTATIC DISCHARGE CONTROL3)
31PRECAUTIONS FOR STRONG LIGHT EXPOSURE4)
31STROAGE5)
31HANDLING PRECAUTIONS FOR PROTECTION FILM6)

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Product Specification

Record of revisions

Revision No DescriptionDate Page

LM230WF5

Liquid Crystal Display

Ver. 0.1

Ver. 1.0

Jan. 14, 2010

Mar. 31, 2010

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First Draft, Preliminary Specifications.

Final Specifications

Ver. 1.0 Mar. 17, 2010

3 / 30

LM230WF5

Liquid Crystal Display

Product Specification

1. General description

LM230WF5-TLB1 is a Color Active Matrix Liquid Crystal Display Light Emitting Diode ( White LED) backlight
system without LED driver. The matrix employs a-Si Thin Film Transistor as the active element. It is a
transmissive type display operating in the normally white mode. It has a 23 inch diagonally measured active
display area with FHD resolution (1080 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 sub­pixel color is determined with a 8-bit gray scale signal for each dot, thus, presenting a palette of more than
16,7M colors with Advanced-FRC(Frame Rate Control). It has been designed to apply the interface method that
enables low power, high speed, low EMI. FPD Link or compatible must be used as a LVDS(Low Voltage
Differential Signaling) chip. It is intended to support applications where thin thickness, wide viewing angle, low
power are critical factors and graphic displays are important. In combination with the vertical arrangement of the
sub-pixels, the LM230WF5-TLB1 characteristics provide an excellent flat panel display for office automation
products such as monitors.

FIG. 1 Block diagram

LVDS

pair #1

LVDS

pair #2

CN1

(30pin)

+5V
VLCD

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General features

Active screen size
Outline Dimension
Pixel Pitch 0.265mm x 0.265mm
Pixel Format 1920 horizontal By 1080 vertical Pixels. RGB stripe arrangement

Timing

controller

Power circuit

block

23 inches(58.42cm) diagonal(Aspect ratio 16:9)

533.2(H) x 312.0(V) x 11.5(D) mm(Typ.)

RGB

FB 3ch

Source driver circuit

S1

G1

TFT-LCD Panel

(1920×RGB×1080 pixels)

G1080

Backlight assembly (Single LED Bar)

S1920

Interface LVDS 2Port
Color depth 16.7M colors
Luminance, white 250 cd/m2 ( Center 1Point, typ)
Viewing Angle (CR>10) R/L 170(Typ.), U/D 160(Typ.)
Power Consumption
Weight 1900 g (Typ.)
Display operating mode Transmissive mode, normally White
Surface treatments

Ver. 1.0 Mar. 17, 2010

Total 18.95 W (Typ.), ( 4.5 W@V

Hard coating (2H), Glare treatment of the front polarizer

, 14.45 W@W/O_Driver)

LCD

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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

LM230WF5

Liquid Crystal Display

60

Values

90%

MaxMin

60%

40%

10%

Hu
mi
dit
y
[(
%)
RH
]

Parameter Notes

Power Supply 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.

FIG. 2 Temperature and relative humidity

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Wet Bulb
Temperature [℃]

10

0

Symbol

LCD

OP

ST

OP

ST

50

40

30

20

Units

At 25℃Vdc+6.0-0.3V
°C500T
°C60-20T

1

%RH9010H
%RH9010H

Storage

Operation

10 20 30 40 50 60 70 800-20
Dry Bulb Temperature [℃]

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LM230WF5

Liquid Crystal Display

Product Specification

3. Electrical specifications
3-1. Electrical characteristics

It requires two power inputs. One is employed to power the LCD electronics and to drive the TFT array and
liquid crystal. The second input power for the CCFL/Backlight, is typically generated by an inverter. The
inverter is an external unit to the LCDs.

Table 2. Electrical characteristics

Parameter Symbol

MODULE :
Power Supply Input Voltage
Permissive Power Input Ripple

Power Supply Input Current

Power Consumption
Inrush current

Note :

1. The specified current and power consumption are
under the VLCD=5.0V, 25  2°C,fV=60Hz condition
whereas mosaic pattern(8 x 6) is displayed and fV is the frame frequency.

2. The current is specified at the maximum current pattern.

3. Permissive power ripple should be measured under VCC=5.0V, 25°C, fV (frame frequency)=75Hz
condition and At that time, we recommend the bandwidth configuration of oscilloscope
is to be under 20MHz.

4. The duration of rush current is about 2ms and rising time of power Input is 500us  20%.

FIG.3 pattern for Electrical characteristics

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V

LCD

V

LCD

I

LCD-MOSAIC

I

LCD-BLACK

P

LCD

I

RUSH

Values

MaxTypMin

5.55.04.5

0.4-­1100900­12501100-

5.54.5-

3.0--

Vdc

NotesUnit

3V
1mA
2mA
1Watt
3A

power consumption measurement

White : 255Gray
Black : 0Gray

Mosaic Pattern(8 x 6)

Ver. 1.0 Mar. 17, 2010

power input ripple

Full Black Pattern

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Product Specification

Table 3. LED bar Electrical characteristics

LM230WF5

Liquid Crystal Display

ConditionSymbolParameter

Power Consumption

LED driver design guide
: The design of the LED driver must have specifications for the LED in LCD Assembly.

The performance of the LED in LCM, for example life time or brightness, is extremely

influenced by
the characteristics of the LED driver.
So all the parameters of an LED driver should be carefully designed and output current should be
Constant current control.
Please control feedback current of each string individually to compensate the current variation
among the strings of LEDs.
When you design or order the LED driver, please make sure unwanted lighting caused by
the mismatch of the LED and the LED driver (no lighting, flicker, etc) never occurs.
When you confirm it, the LCD module should be operated in the same condition as installed in
your instrument.

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Values

Max.Typ.Min.

Unit

Notes

4,6,7Watt15.3814.4513.53PBar

1,7LED :
2,7mA120110-Is_peakLED String Current
3,7V46.643.841VsLED String Voltage

5,7Hrs--30,000LED_LTLED Life Time

1. Specified values are for a single LED bar.

2. The specified current is input LED chip 100% duty current.

3. The specified voltage is input LED string and Bar voltage at typical 110 mA 100% duty current.

4. The specified power consumption is input LED bar power consumption at typical 110 mA 100% duty current.

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

6. The LED bar power consumption shown above does not include loss of external driver.
The used LED bar current is the LED typical current.
Min Power Consumption is calculated with PBar = Vs(Min.) x Is(Typ.) x Nstring
Max Power Consumption is calculated with PBar = Vbar(Max.) x Is(Typ) x Nstring

7. LED operating DC Forward Current and Junction Temperature must not exceed LED Max Ratings at 25 
2°C.

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Product Specification

3-2. Interface connections

LCD connector(CN1) : GT103-30S-H15 (LSM)

Mating connector : FI-X30H and FI-X30HL (JAE) or Equivalent

Table 4. Module connector(CN1) pin configuration

LM230WF5

Liquid Crystal Display

Pin No

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

Symbol Description

RXO0­ RXO0+
RXO1­ RXO1+
RXO2­ RXO2+
GND
RXOC­ RXOC+
RXO3­ RXO3+
RXE0-

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RXE0+
GND
RXE1­ RXE1+
GND
RXE2­ RXE2+
RXEC­ RXEC+
RXE3­ RXE3+
GND
NC
NC
NC
VLCD
VLCD
VLCD

Minus signal of 1st channel 0 (LVDS)
Plus signal of 1st channel 0 (LVDS)
Minus signal of 1st channel 1 (LVDS)
Plus signal of 1st channel 1 (LVDS)
Minus signal of 1st channel 2 (LVDS)
Plus signal of 1st channel 2 (LVDS)
Ground
Minus signal of 1st clock channel (LVDS)
Plus signal of 1st clock channel (LVDS)
Minus signal of 1st channel 3 (LVDS)
Plus signal of 1st channel 3 (LVDS)
Minus signal of 2nd channel 0 (LVDS)
Plus signal of 2nd channel 0 (LVDS)
Ground
Minus signal of 2nd channel 1 (LVDS)
Plus signal of 2nd channel 1 (LVDS)
Ground
Minus signal of 2nd channel 2 (LVDS)
Plus signal of 2nd channel 2 (LVDS)
Minus signal of 2nd clock channel (LVDS)
Plus signal of 2nd clock channel (LVDS)
Minus signal of 2nd channel 3 (LVDS)
Plus signal of 2nd channel 3 (LVDS)
Ground
No Connection (For LCD internal use only.)
No Connection (For LCD internal use only.)
No Connection (For LCD internal use only.)
Power Supply (5.0V)
Power Supply (5.0V)
Power Supply (5.0V)

First Pixel data

Second Pixel data

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FIG. 4 Connector diagram

1’st signal pairs

Product Specification

GT103-30S-H15 (LSM)

#1 #30

#1 #30

2’nd signal pairs

Rear view of LCM

CN1

Power(+5V)

LM230WF5

Liquid Crystal Display

Note:

1. NC: No Connection.

be connected to the LCD’s metal frame.

3. All V

4. Input Level of LVDS signal is based on the IEA 664 Standard.

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2. All GND(ground) pins should be connected together and to Vss which should also

(power input) pins should be connected together.

LCD

Ver. 1.0 Mar. 17, 2010

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