LG Display LM270WQ1-SDE5 Specification
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LM270WQ1
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
( ) Preliminary Specification
) Final Specification
(
BUYER
APPROVED BY
/
/
APPLE
K62 PRQMODEL
SIGNATURE
DATE
27.0” QHD TFT LCDTitle
SUPPLIER LG Display Co., Ltd.
*MODEL LM270WQ1
SUFFIX SDE5
*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
SIGNATURE
DATE
PREPARED BY
/
Please return 1 copy for your confirmation with
your signature and comments.
Ver. 1.0 JAN. 20. 2012
S R Yoo / Engineer
MNT Products Engineering Dept.
LG Display Co., Ltd.
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LM270WQ1
Liquid Crystal Display
Product Specification
Contents
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
1
2
4
5
6
7
7
10
13
14
15
16
20
26
29
7 INTERNATIONAL STANDARDS
7-1 SAFETY
7-2 EMC
8 PACKING
8-1 DESIGNATION OF LOT MARK
8-2 PACKING FORM
9 PRECAUTIONS 32
9-1 MOUNTING PRECAUTIONS 32
9-2 OPERATING PRECAUTIONS 32
9-3 ELECTROSTATIC DISCHARGE CONTROL 33
9-4 PRECAUTIONS FOR STRONG LIGHT EXPOSURE 33
9-5 STORAGE 33
9-6 HANDLING PRECAUTIONS FOR PROTECTION FILM 33
30
30
30
31
31
31
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10 EDID DATA 34
10-1 EDID DATA 34
10-2 EDID READ/WRITE PROTOCOL 37
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LM270WQ1
Liquid Crystal Display
Product Specification
Contents
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LM270WQ1
Liquid Crystal Display
Product Specification
RECORD OF REVISIONS
Revision
No
0.0 Nov. 1. 2010 - First Draft(Preliminary)
0.1 Feb. 25. 2011 1
0.2 Mar. 22. 2011 27~28 Update a mechanic drawing
0.3 Apr. 27. 2011 7 Update Electrical Characteristics
0.4 Jun. 9. 2011 1
0.5 Jun. 15. 2011 8 Update BER Spec
Revision Date Page Description
Nov. 15. 2010 34~37 Update EDID data
Update Model Name (K62AH Æ K62 PRQ)
8 Add BER Spec
14~15 Add Timing Table (VESA & CEA 1280x720 timing)
18
30 Update a mechanic drawing
5 Update Power Consumption
9 Update LED Bar Electrical Characteristics
22 Update Color Coordinates
30 Update a mechanic drawing
Update Power Sequence (T8 Min. : 500ms Æ 200ms)
Update Suffix (SDE1 Æ SDE5)
0.6 Jun. 23. 2011 12 Update LED Connector Pin Configuration
0.7 Jan. 20. 2012 5 Luminance Spec change
22 Luminance Spec change
23 Update Lot Minimum Luminance Spec
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Liquid Crystal Display
Product Specification
1. General Description
LM270WQHD 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.
LM270WQ1
Mini-LVDS (RGB)
G1
Gate Driver Circuit
G1440
Source Driver Circuit
S1 S2560
TFT - LCD Panel
(2560 Ý RGB Ý 1440 pixels)
B/L System (White LED)
Main Link
4 Lane
AUX CH
HPD
DP function
LCD Power
12 V
CN1
(30pin)
CN7
(6pin)
Flash
memory
SPI
Logic Power
3.3V / 1.2V
EEPROM
(EDID)
I2C
Timing
Controller
Power
Enable
(Video On)
Power Circuit
Block
Vled
General Features
Active Screen Size 27.0 inches(68.47cm) diagonal
Outline Dimension 630.0(H) x 376.13(V) x 19.8(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 460 cd/m
2
( 5 points Avg.)
Viewing Angle(CR>10) View Angle Free (R/L 178(Typ.), U/D 178(Typ.))
Power Consumption
Total 73.52 Watt (Max.)
(10.92 Watt
@VLCD, Max 62.6 Watt_Duty 100% of DC 350 mA_w/o driver)
Weight 4050 g (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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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
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LM270WQ1
Liquid Crystal Display
Product Specification
Parameter Symbol
Power Input Voltage
Operating Temperature
Storage Temperature
Operating Ambient Humidity
Storage Humidity
VLCD -0.3 14 Vdc
TOP 050¶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
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ڏڋ
ڐڋ
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ڌڋڀ
ڲۀۏٻڝېۇڽ
گۀۈۋۀۍڼۏېۍۀٻڶڞڸ
ڎڋ
ڍڋ
ڌڋ
ڋ
at 25 2¶C
1, 2
ڮۏۊۍڼۂۀ
ڪۋۀۍڼۏۄۊۉ
ڌڋ ڍڋ ڎڋ ڏڋ ڐڋ ڑڋ ڒڋ ړڋڋڈڍڋ
ڟۍ۔ٻڝېۇڽٻگۀۈۋۀۍڼۏېۍۀٻڶڞڸ
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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)
Parameter Symbol
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LM270WQ1
Liquid Crystal Display
Product Specification
Values
Unit Notes
Min Typ Max
MODULE :
Power Supply Input voltage VLCD 11.6 12.0 12.4 Vdc
Permissive Power Input Ripple VdRF - 400 mVp-p
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
- (550) (720) mA 1
- (700) (910) mA 2
- (6.60) (8.64) Watt 1
(8.40) (10.92) Watt 2
=12.0V, 25 2¶C,fV=60Hz condition
is the frame frequency.
V
LCD
Maximum current pattern
Mosaic Pattern(8 x 6)
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White Pattern
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3-1-2. DisplayPort Main Link Receiver Characteristics
DP628 which supports Apple BER Spec with below test condition is used for DP Rx.
Table 2-1-2. DISPLAYPORT MAIN LINK RECEIVER CHARACTERISTICS
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LM270WQ1
Liquid Crystal Display
Product Specification
Parameter
Symbol Error Rate,
normal link data transmission,
HBR, 4 lane operation
Note :
1. Jitter Tolerance Testing follows VESA DisplayPort™ PHY Compliance Testing Standard, Version 1.1a.
Jitter composition is specified in the Standard.
2. TJ at Receiver Connector (TP3) ≦0.491UI @ Bit Error Rate (BER) = 10
3. Eye Height at TP3 ≧ 150mVpp
4. Max lane to lane mismatch of insertion loss at TP3 : 20*log |max(eye height)/min(eye height)| ≦ 2.3dB
5. Max source pre-emphasis level at level 0 (0dB) ≦ 0.25dB
Min Typ Max
Values
-13
10 1~5
-13
Notes
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Product Specification
Table 2-2. LED Bar ELECTRICAL CHARACTERISTICS
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LM270WQ1
Liquid Crystal Display
Items Symbol
LED String Voltage V
LED String Power P
BL Power P
LED Life Time LED_LT 30K - Hrs
LED Junction Temperature Tj 150 -7,8
S
S
BL
Min Typ Max
(52.6) (56.1) (59.6) Vrms
(18.4) (19.6) (20.9) W
- (58.9) (62.6) W
Spec
Unit Remark Notes
Ta=25, at Duty 100%
of DC 350mA
Ta=25, at Duty 100%
of DC 350mA
Ta=25, at Duty 100%
of DC 350mA
Tj≤90, at Duty 100%
of DC 350mA
1,2,3,
7
1,2,3,
4,6,7
1,2,4,
6,7
5,7,8
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.
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 350 mA 100% duty current.
4. The specified power consumption is input LED bar power consumption at typical 350 mA 100% duty current.
5. The LED life time is determined as the time at which brightness of the LED is 70% compared to that of initial
value at the typical LED current on condition of continuous operating at below junction temperature 90¶C.
6. The LED power consumption shown above does not include loss of external driver.
The used LED BL current is the LED typical current.
P
String Power Consumption is calculated with
BL Power Consumption is calculated with
S
P
= V
BL
= VSx 350mA
x 350mA x 3 (String no.)
Bar
7. LED operating DC Forward Current and Junction Temperature must not exceed LED Max Ratings.
8. The LED life time and the maximum rating of LED junction temperature are evaluated at LED package level,
not at liquid crystal module level.
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Product Specification
3-2. Interface Connections
3-2-1. LCD Module
- LCD Connector(CN1) : 20525-030E-01 (manufactured by I-PEX)
The pin configuration for the 30 pin connector is shown in the table below.
Table 3-1. MODULE CONNECTOR(CN1) PIN CONFIGURATION
No. Symbol Description No. Symbol Description
1 GND Ground 16 Lane0N Components Signal for Main Link 0
LM270WQ1
Liquid Crystal Display
2 DDC_SDA DDC Data 17 GND High Speed Ground for Main Link 1
3 DDC_SCL DDC Clock 18 Lane1P True Signal for Main Link 1
4 GND Ground 19 Lane1N Components Signal for Main Link 1
5 I2C_SDA I2C Data 20 GND High Speed Ground for Main Link 2
6 I2C_SCL I2C Clock 21 Lane2P True Signal for Main Link 2
7 GND Ground 22 Lane2N Components Signal for Main Link 2
8 SPDIF Audio output from DP Rx 23 GND High Speed Ground for Main Link 3
9 OPTION_1 TBD 24 Lane3P True Signal for Main Link 3
10 HPD Hot Plug Detect Signal 25 Lane3N Components Signal for Main Link 3
11 GND High Speed Ground for Auxiliary Channel 26 GND High Speed Ground
12 AUX_CHN Component Signal for Auxiliary 27 VIDEO_ON Video status from DP Rx
13 AUX_CHP True Signal for Auxiliary Channel 28 OPTION_2 TBD
14 GND High Speed Ground for Main Link 0 29 VSYNC Vertical sync output from DP Rx
15 Lane0P True Signal for Main Link 0 30 GND Ground
Notes : 1. Connector
2.1 Connector(Receptacle) : 20525-030E-01(I-PEX)
2.2 Mating Connector(Plug) : 20523-030T-01(I-PEX)
1
30
#1
#30
Rear view of LCM
20525-030E-01 (I-PEX)
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Product Specification
3-2. Interface Connections
3-2-1. LCD Module
- Power Connector(CN7) : 53780-8608 (manufactured by MOLEX)
The pin configuration for the 6 pin connector is shown in the table below.
Table 3-2. POWER CONNECTOR(CN7) PIN CONFIGURATION
Pin Symbol Description NOTES
1 GND Ground
LM270WQ1
Liquid Crystal Display
2 GND Ground
3 GND Ground
4 VIN 12V for LCM main power
5 VIN 12V for LCM main power
6 VIN 12V for LCM main power
#1 #6
\Z^_WT_]W]
3-2-2. Sync Connector
This connector is used for synchronized LED Driver.
The connector is 53780-8604. (Manufactured by MOLEX)
Table 4. LED SYNCHRONIZED CONNECTOR(CN4) PIN CONFIGURATION
#1 #6
Rear view of LCM
Pin Symbol Description NOTES
1 DXP Positive connection to remote temp. sensor
2 DXN Negative connection to remote temp. sensor
3 GND Ground
4 VSYNCM VSYNCM for synchronized LED Driver
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3-2-3. Backlight Interface
- LED Connector : H401K-D12N-12B (Manufactured by E&T)
- Mating Connector : 4530K-F12N-01R (Manufactured by E&T)
Table 5. LED CONNECTOR PIN CONFIGULATION
Pin No. Symbol Description Note
1NC NC
2 LED1- LED channel 1 Cathode
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LM270WQ1
Liquid Crystal Display
Product Specification
3 LED2+ LED channel 2 Anode
4NC NC
5NC NC
6 LED3- LED channel 3 Cathode
7 LED1+ LED channel 1 Anode
8NC NC
9NC NC
10 LED2- LED channel 2 Cathode
11 LED3+ LED channel 3 Anode
12 NC NC
1 Bar
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