LG Display LM270WF5-SLC1 Specification

( ) Preliminary Specification
(●) Final Specification

LM270WF5

Liquid Crystal Display

Product Specification

SPECIFICATION

FOR

APPROVAL

27” Full HD TFT LCDTitle

BUYER

MODEL

APPROVED BY

/

/

/

LGE

SIGNATURE

DATE

SUPPLIER LG Display Co., Ltd.

*MODEL LM270WF5

SUFFIX SLC1

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY

C.K. Lee / G.Manager

REVIEWED BY

D.G. Kim / Manager [C]

Y.S. Chung / Manager [M]

D.H. Kang / Manager [P]

J.Y. Mun / Manager [O]

PREPARED BY

S.Y. Kim / Engineer

DATE

Please return 1 copy for your confirmation with

your signature and comments.

Ver 1.0 Sep. 05. 2012

MNT Products Engineering Dept.

LG Display Co., Ltd.

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LM270WF5

Liquid Crystal Display

Product Specification

Contents

No ITEM Page

COVER 1

CONTENTS 2

RECORD OF REVISIONS 3

1 GENERAL DESCRIPTION 4

2 ABSOLUTE MAXIMUM RATINGS 5

3 ELECTRICAL SPECIFICATIONS 6

1) ELECTRICAL CHARACTERISTICS 6

2) INTERFACE CONNECTIONS 9

3) SIGNAL TIMING SPECIFICATIONS 14

4) SIGNAL TIMING WAVEFORMS 15

5) COLOR INPUT DATA REFERNECE 16

6) POWER SEQUENCE 17

7) POWER DIP CONDITION 18

4 OPTICAL SPECIFICATIONS 19

5 MECHANICAL CHARACTERISTICS 27

6 RELIABILITY 30

7 INTERNATIONAL STANDARDS 31

1) SAFETY 31

2) EMC 31

3) Environment 31

8 PACKING 32

1) DESIGNATION OF LOT MARK 32

2) PACKING FORM 32

9 PRECAUTIONS 33

1) MOUNTING PRECAUTIONS 33

2) OPERATING PRECAUTIONS 33

3) ELECTROSTATIC DISCHARGE CONTROL 34

4) PRECAUTIONS FOR STRONG LIGHT EXPOSURE 34

5) STROAGE 34

6) HANDLING PRECAUTIONS FOR PROTECTION FILM 34

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Product Specification

RECORD OF REVISIONS

LM270WF5

Liquid Crystal Display

Revision

No

0.0 Jun. 08. 2012 - First Draft (Preliminary)

0.1 Aug. 16. 2012 19 Update Color Coordinates

1.0 Sep. 05. 2012 - Final CAS

Revision Date Page Description

8

Change max LED string current (130mA  125mA)

Ver 1.0 Sep. 05. 2012

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LM270WF5

Liquid Crystal Display

Product Specification

1. General Description

LM270WF5-SLC1 is a Color Active Matrix Liquid Crystal Display with an integral Light Emitting Diode (White LED)
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. It has a 27 inch diagonally measured active display area with Full
HD resolution (1080 vertical by 1920 horizontal pixel array) Each pixel is divided into Red, Green and Blue sub­pixels or dots which are arranged in vertical stripes. Gray scale or the brightness of the sub-pixel 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. It is intended to support displays where high brightness, super wide viewing angle,
high color saturation, and high color are important.

RGB, Dclk, DE

Hsync, Vsync

(LVDS 2 port)

V

(5.0V)

LCD

CN1

(30pin)

Timing Control

Block

G1

TFT-LCD Panel

Source Driver Circuit

(1920  1080 pixels)

G1080

V

LED (3ch)

Power Circuit Block

Back light System (White LED)

Figure 1. Block diagram

General Features

Active Screen Size 27 inches(68.6cm) diagonal

Outline Dimension 630.0(H) x 368.2(V) x 11.7(D) mm(Typ.)

Pixel Pitch 0.3114 mm x 0.3114 mm

Pixel Format 1920 horiz. By 1080 vert. Pixels RGB stripes arrangement

S1920S1

Color Depth 16.7M colors

Luminance, White 200 cd/m

2

(Center 1 point)

Viewing Angle(CR>10) View Angle Free (R/L 178(Typ.), U/D 178(Typ.))

Power Consumption Total 19.73 Watt (Typ.) (3.83 Watt @ VLCD, 15.9 Watt @200cd/㎡)

Weight 3,215g(Typ.)

Display Operating Mode Transmissive mode, normally Black

Surface Treatment

Hard coating(3H) & Anti-Glare treatment of the front polarizer

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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

LM270WF5

Liquid Crystal Display

Parameter Symbol

Values

Min Max
Power Supply Input Voltage V
Operating Temperature T
Storage Temperature T
Operating Ambient Humidity H
Storage Humidity H

LCM Surface Temperature

(Operation)

T

LCD

OP

ST

OP

ST

surface

-0.3 +5.5 Vdc
0 50

-20 60
10 90 %RH
10 90 %RH

0 65

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.

2. Maximum Storage Humidity is up to 40℃, 70% RH only for 4 corner light leakage Mura.

3. Storage condition is guaranteed under packing condition

4. LCM Surface Temperature should be Min. 0℃ and Max. 65℃ under the VLCD=5.0V,
fV=60Hz, 25℃ ambient Temp. no humidity control and LED string current is typical value.

FIG. 2 Temperature and relative humidity

90%

Units Notes

At 25℃

°C
°C

1,2,,3

℃

1, 4

60

50

Wet Bulb
Temperature [℃]

40

30

20

10

0

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

Ver 1.0 Sep. 05. 2012

60%

40%

10%

Storage

Operation

Humidity [(%)RH]

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LM270WF5

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 LED/Backlight, is typically generated by a LED Driver.
The LED Driver is an external unit to the LCDs.

Table 2-1. ELECTRICAL CHARACTERISTICS

Parameter Symbol

MODULE :

Power Supply Input Voltage VLCD

Permissive Power Input Ripple VdRF

Power Supply Input Current ILCD

Pc TYP

Power Consumption

Pc MAX

Rush current IRUSH

Min Typ Max

4.5 5 5.5

- 765 955

- 920 1150

- 3.83 4.78

- 4.60 5.75

- - 3

Values

400

Unit Notes

Vdc

mVp-p 1

mA 2

mA 3

Watt 2

Watt 3

A 4

Note :

1. Permissive power ripple should be measured under V

=5.0V, 25°C, fV(frame frequency)=MAX

LCD

condition and At that time, we recommend the bandwidth configuration of oscilloscope is to be under
20Mhz. See the next page.

2. The specified current and power consumption are under the V

=5.0V, 25± 2°C,fV=60Hz condition

LCD

whereas Typical Power Pattern [Mosaic] shown in the [ Figure 3 ] is displayed.

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

4. Maximum Condition of Inrush current :

The duration of rush current is about 5ms and rising time of power Input is 500us  20%.(min.).

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Product Specification

LM270WF5

Liquid Crystal Display

• Permissive Power input ripple (V

White pattern

• Power consumption (V

=5V, 25°C, fV (frame frequency=60Hz condition)

LCD

=5.0V, 25°C, fv (frame frequency)=MAX condition)

LCD

Black pattern

Typical power Pattern

FIG.3 Mosaic pattern & White Pattern for power consumption measurement

Ver 1.0 Sep. 05. 2012

Maximum power Pattern

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Product Specification

Table 2-2. LED Bar ELECTRICAL CHARACTERISTICS

LM270WF5

Liquid Crystal Display

Parameter Symbol

LED String Current Is - 120 125 mA 1, 2, 5

LED String Voltage Vs 41.3 44.1 46.9 V 1, 5

Power Consumption

LED Life Time LED_LT 30,000 - - Hrs 3

PBar - 15.9 16.9 Watt 1, 2, 4

Min. Typ. Max.

Values

Notes) The LED Bar consists of 42 LED packages, 3 strings (parallel) x 14 packages (serial)

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.

Unit Notes

1. The specified values are for a single LED bar.

2. The specified current is defined as the input current for a single LED string with 100% duty cycle.

3. The LED life time is defined as the time when brightness of LED packages become 50% or less

than the initial value under the conditions at Ta = 25  2°C and LED string current is typical value.

4. The power consumption shown above does not include loss of external driver.
The typical power consumption is calculated as PBar = Vs(Typ.) x Is(Typ.) x No. of strings.
The maximum power consumption is calculated as PBar = Vs(Max.) x Is(Typ.) x No. of strings.

5. LED operating conditions are must not exceed Max. ratings.

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Liquid Crystal Display

Product Specification

3-2. Interface Connections

3-2-1. LCD Module

- LCD Connector(CN1) : GT103-30S-HF15-E2500 (LSM), IS100-L30O-C23 (UJU)

- Mating Connector : FI-X30H and FI-X30HL (Manufactured by JAE) or Equivalent

Table 3. MODULE CONNECTOR(CN1) PIN CONFIGURATION

No Symbol Description No Symbol Symbol

LM270WF5

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

FR0M

FR0P

FR1M

FR1P

FR2M

FR2P

GND

FCLKINM

FCLKINP

FR3M

FR3P

SR0M

SR0P

GND

SR1M

Minus signal of odd channel 0 (LVDS)

Plus signal of odd channel 0 (LVDS)

Minus signal of odd channel 1 (LVDS)

Plus signal of odd channel 1 (LVDS)

Minus signal of odd channel 2 (LVDS)

Plus signal of odd channel 2 (LVDS)

Ground

Minus signal of odd clock channel (LVDS)

Plus signal of odd clock channel (LVDS)

Minus signal of odd channel 3 (LVDS)

Plus signal of odd channel 3 (LVDS)

Minus signal of even channel 0 (LVDS)

Plus signal of even channel 0 (LVDS)

Ground

Minus signal of even channel 1 (LVDS)

16

SR1P

17

GND

18

SR2M

19

SR2P

20

SCLKINM

21

SCLKINP

22

SR3M

23

SR3P

24

GND

25

NC

26

NC

PWM_OUT For Control Burst frequency of Inverter

27

28

VLCD

29

VLCD

30

VLCD

Plus signal of even channel 1 (LVDS)

Ground

Minus signal of even channel 2 (LVDS)

Plus signal of even channel 2 (LVDS)

Minus signal of even clock channel (LVDS)

Plus signal of even clock channel (LVDS)

Minus signal of even channel 3 (LVDS)

Plus signal of even channel 3 (LVDS)

Ground

No Connection (I2C Serial interface for LCM)

No Connection.(I2C Serial interface for LCM)

Power Supply +5.0V

Power Supply +5.0V

Power Supply +5.0V

Note: 1. All GND(ground) pins should be connected together and to Vss which should also be connected to

the LCD‟s metal frame.

2. All VLCD (power input) pins should be connected together.

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

4. PWM_OUT signal controls the burst frequency of a inverter.
This signal is synchronized with vertical frequency.

It‟s frequency is 3 times of vertical frequency, and it‟s duty ratio is 50%.
If you don‟t use this pin, it is no connection.

GT103-30S-HF15-E2500

#1 #30

FIG.4 Connector diagram

Ver 1.0 Sep. 05. 2012

#1

#30

Rear view of LCM

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