LG Display LM270WQ1-SDFJ Specification

(●) Preliminary Specification
( ) Final Specification

LM270WQ1

Liquid Crystal Display

Product Specification

SPECIFICATION

FOR

APPROVAL

27.0” QHD TFT LCDTitle

BUYER

MODEL

APPROVED BY

/

/

/

General

SIGNATURE

DATE

SUPPLIER LG Display Co., Ltd.

*MODEL LM270WQ1

SUFFIX SDFJ

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY

S Y Park / G.Manager

REVIEWED BY

S J So / Manager

PREPARED BY

S R Yoo / Engineer

SIGNATURE

DATE

Please return 1 copy for your confirmation with

your signature and comments.

Ver. 0.0 DEC. 12. 2012

MNT Products Engineering Dept.

LG Display Co., Ltd.

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Product Specification

Contents

LM270WQ1

Liquid Crystal Display

No ITEM

COVER
CONTENTS

RECORD OF REVISIONS
1 GENERAL DESCRIPTION
2 ABSOLUTE MAXIMUM RATINGS

3 ELECTRICAL SPECIFICATIONS

3-1 ELECTRICAL CHARACTREISTICS
3-2 INTERFACE CONNECTIONS
3-3 SIGNAL TIMING SPECIFICATIONS
3-4 SIGNAL TIMING WAVEFORMS
3-5 COLOR INPUT DATA REFERNECE
3-6 POWER SEQUENCE

4 OPTICAL SFECIFICATIONS
5 MECHANICAL CHARACTERISTICS
6 RELIABLITY

Page

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8
11
12
13
14
16

22
25

7 INTERNATIONAL STANDARDS
7-1 SAFETY
7-2 EMC

ENVIRONMENT7-3

8PACKING
8-1 DESIGNATION OF LOT MARK
8-2 PACKING FORM

9 PRECAUTIONS

9-1 MOUNTING PRECAUTIONS
9-2 OPERATING PRECAUTIONS
9-3 ELECTROSTATIC DISCHARGE CONTROL
9-4 PRECAUTIONS FOR STRONG LIGHT EXPOSURE
9-5 STORAGE
9-6 HANDLING PRECAUTIONS FOR PROTECTION FILM

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Product Specification

RECORD OF REVISIONS

LM270WQ1

Liquid Crystal Display

Revision

No

0.0 Dec. 17. 2012 - First Draft (Preliminary)

Revision Date Page Description

Ver. 0.0 DEC. 12. 2012

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LM270WQ1

Liquid Crystal Display

Product Specification

1. General Description

LM270WQ1 is a Color Active Matrix Liquid Crystal Display with 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 black mode. It has a 27inch diagonally measured
active display area with QHD resolution (2560 vertical by 1440 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 10-bit gray scale signal for each dot,
thus, presenting a palette of more than 1.07B colors with FRC (Frame Rate Control).
It has been designed to apply the 10-bit 4Lane Display port interface.
It is intended to support displays where high brightness, super wide viewing angle,
high color saturation, and high color are important.

Mini-LVDS (RGB)

G1

Gate Driver Circuit

G1440

Source Driver Circuit

S1 S2560

TFT - LCD Panel

(2560 × RGB × 1440 pixels)

Main Link

4 Lane

AUX CH

HPD

LCD Power

12 V

CN1

(40pin)

Flash

memory

SPI

Logic Power

3.3V / 1.2V

EEPROM

(EDID)

I2C

Timing

Controller

Power
Enable
(Video On)

Power Circuit

Block

General Features

Active Screen Size 27.0 inches(68.47cm) diagonal
Outline Dimension (W/O COF) 609.44(H) x 350.46(V) x 1.75(D) mm(Typ.)

Pixel Pitch 0.2331 mm x 0.2331 mm
Pixel Format 2560 horiz. By 1440 vert. Pixels RGB stripes arrangement
Color Depth 8-bit, 16,777,216 colors
Luminance, White 440 cd/m

2

( Center 1 point, Typ.)

Viewing Angle (CR>10) View Angle Free (R/L 178(Typ.), U/D 178(Typ.))
Power Consumption 22.62 Watt @V

LCD

Weight 920g (typ.)
Display Operating Mode Transmissive mode, normally black
Surface Treatment Glare (Low Reflection treatment of the front polarizer)
HDCP HDCP key implemented in Tcon (DP628)

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LM270WQ1

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 Symbol

Power Input Voltage
Operating Temperature
Storage Temperature
Operating Ambient Humidity
Storage Humidity

VLCD -0.3 14 Vdc

TOP 0 50 °C
TST -20 60 °C
HOP 10 90 %RH
HST 10 90 %RH

Values

Units Notes

Min Max

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. Storage condition is guaranteed under packing condition (with Al-Bag).

90%

60

60%

40

50

40%

Humidity [(%)RH]

10%

Wet Bulb
Temperature [C]

30

20

10

0

at 25 ± 2°C

1, 2

Storage

Operation

10 20 30 40 50 60 70 800-20

Dry Bulb Temperature [C]

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LM270WQ1

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 DP Rx.

Table 2-1-1. ELECTRICAL CHARACTERISTICS (Normal Mode)

Values

Parameter Symbol

Min Typ Max

MODULE :
Power Supply Input voltage VLCD 11.6 12.0 12.4 Vdc

Permissive Power Input Ripple VdRF - 400 mVp-p

Unit Notes

Power Supply Input Current ILCD

Power Consumption PLCD

Rush Current IRUSH_VLCD - - 3.0 A 3

Note :

1. The specified current and power consumption are under the V
whereas mosaic pattern(8 x 6) is displayed and f

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

3. The duration of rush current is about 2ms and rising time of power Input is 1ms(min.).

White : 255Gray
Black : 0Gray

-

-

-

is the frame frequency.

V

900 1170 mA 1

1450 1885 mA 2

10.80 14.04 Watt 1

17.40 22.62 Watt 2

=12.0V, 25 ± 2°C,fV=60Hz condition

LCD

Maximum current pattern

Mosaic Pattern(8 x 6)

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White Pattern

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LM270WQ1

Liquid Crystal Display

Product Specification

3-2. Interface Connections

3-2-1. LCD Module

- LCD Connector(CN1) : 20525-140E-01 (manufactured by I-PEX)
The pin configuration for the 40 pin connector is shown in the table below.

Table 3-1. MODULE CONNECTOR(CN1) PIN CONFIGURATION

No. Symbol Description No. Symbol Description

1 VIN 12V for LCM main power 21 HPD Hot Plug Detect Signal
2 VIN 12V for LCM main power 22 GND High Speed Ground for Auxiliary Channel
3 VIN 12V for LCM main power 23 AUX_CHN Component Signal for Auxiliary
4 VIN 12V for LCM main power 24 AUX_CHP True Signal for Auxiliary Channel
5 VIN 12V for LCM main power 25 GND High Speed Ground for Main Link 0
6 VIN 12V for LCM main power 26 Lane0P True Signal for Main Link 0
7 GND Ground 27 Lane0N Components Signal for Main Link 0
8 GND Ground 28 GND High Speed Ground for Main Link 1
9 GND Ground 29 Lane1P True Signal for Main Link 1

10 GND Ground 30 Lane1N Components Signal for Main Link 1
11 GND Ground 31 GND High Speed Ground for Main Link 2
12 GND Ground 32 Lane2P True Signal for Main Link 2
13 GND Ground 33 Lane2N Components Signal for Main Link 2
14 DDC_SDA DDC Data 34 GND High Speed Ground for Main Link 3
15 DDC_SCL DDC Clock 35 Lane3P True Signal for Main Link 3
16 GND Ground 36 Lane3N Components Signal for Main Link 3
17 I2C_SDA I2C Data 37 GND High Speed Ground
18 I2C_SCL I2C Clock 38 VIDEO_ON Video status from DP Rx
19 GND Ground 39 VSYNC Vertical sync output from DP Rx
20 SPDIF Audio output from DP Rx 40 GND Ground

Notes : 1. Connector

2.1 Connector (Receptacle) : 20525-140E-01(I-PEX)

2.2 Mating Connector (Plug) : TBD(I-PEX)

1

40

20525-140E-01 (I-PEX)

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#1

Rear view of LCM

#40

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Product Specification

3-2. Interface Connections

3-2-2. Sync Connector

This connector is used for synchronized LED Driver.
The connector is 53780-8602. (Manufactured by MOLEX)

Table 4. LED SYNCHRONIZED CONNECTOR(CN2) PIN CONFIGURATION

Pin Symbol Description NOTES

1 DXP Positive connection to remote temp. sensor
2 DXN Negative connection to remote temp. sensor

LM270WQ1

Liquid Crystal Display

#1 #2

53780-8602

[ Figure 3-1 ] Thermal Sensor Connector diagram

#1 #2

Rear view of LCM

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