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SPECIFICATION
LM270WF5
Date: October 2012
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( ● ) Preliminary Specification
( ) Final Specification
LM270WF5
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
27” Full HD TFT LCD Title
BUYER
MODEL
APPROVED BY
/
/
/
General
SIGNATURE
DATE
SUPPLIER LG Display Co., Ltd.
*MODEL LM270WF5
SUFFIX SLM1
*When you obtain standard approval,
please use the above model name without suffix
APPROVED BY
W. G. KWEON / G.Manager
REVIEWED BY
H.S. KIM / Manager [C]
Y.S. CHUNG / Manager [M]
T. H. SHIN / Manager [P]
Y. G. KANG / Manager [O]
PREPARED BY
C. Y. SUNG / Engineer
SIGNATURE
DATE
Please return 1 copy for your confirmation with
your signature and comments.
Ver 1.0 Oct. 17. 2012
MNT Products Engineering Dept.
LG Display Co., Ltd.
1 / 34
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
Revision No Revision Date Page Description
0.0 June. 14. 2012. - First Draft(Preliminary)
0.1! July. 6. 2012 29 Update cover-bottom drawing.
0.2 July. 12. 2012! 4 General features ( add Panel type)
29 Add Reverse panel words
33 Add 9-2 operating precautions (11).!
0.3 July. 19. 2012 6 Update electrical charictoristics
0.4 July. 24. 2012 4 Update block diagram (reverse type)
6 Update electrical charicteristics
0.5 Aug. 27. 2012.! 4,27 Update weight information
4 Update power consumption!
LM270WF5
Liquid Crystal Display
6 Update power supply input current / consumption
19 Update Color Coordinates values
28 Update drawing information.
29 Update drawing information.
0.6 Sep. 3. 2012.! 6 Change Permissive Power Input Ripple spec (max 200mV 400mV)
24 Update Gray scale step && value (17 step)
0.7 Sep. 11. 2012 29 Update drawing information. !
0.8 Sep. 21. 2012 8 Update LED Bar electrical characteristics
0.9 Oct.15.2012! 19 Update optical information!
1.0 Oct. 17. 2012. 6 Update electrical characteristics ( input current, Power consumption)!
Ver 1.0 Oct. 17. 2012
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LM270WF5
Liquid Crystal Display
Product Specification
1. General Description
LM270WF5-SLM1 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 disp
lay operating in the normally black mode. It has a 27 inch diagonally measured active display area with Full HD re
solution (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 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(Fra
me Rate Control). It has been designed to apply the interface method that enables low power, high speed, low EM
I. FPD Link or compatible must be used as a LVDS(Low Voltage Differential Signaling) chip. It is intended to suppo
rt applications where thin thickness, wide viewing angle, low power are critical factors and graphic displays are im
portant. 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)
CN1
(30pin)
Timing Control
Block
G1
TFT-LCD Panel
(1920 1080 pixels)
(5.0V)
V
LCD
Power Circuit Block
G1080
S1
Source Driver Circuit
V
General Features
LED (3ch)
Figure 1. Block diagram
Back light System (White LED)
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
Color Depth 16.7M colors
Luminance, White 250 cd/m
2
(Center 1 point)
S1920
Viewing Angle(CR>10) View Angle Free (R/L 178(Typ.), U/D 178(Typ.))
Power Consumption Total 19.7 Watt (Typ.) (4.1 Watt
@ VLCD, 15.6 Watt @250cd/㎡)
Weight 3,150 g(Typ.)
Display Operating Mode Transmissive mode, normally Black
Panel type Reverse type
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
Units Notes
Min Max
Values
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 At 25℃
0 50 °C
-20 60 °C
10 90 %RH
10 90 %RH
0 65 ℃ 1, 4
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%
1,2,,3
60
50
Wet Bulb
Temperature [℃]
40
30
20
10
0
10 20 30 40 50 60 70 80 0 -20
Dry Bulb Temperature [℃]
Ver 1.0 Oct. 17. 2012
60%
40%
Humidity [(%)RH]
10%
Storage
Operation
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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 l
iquid 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 V
Permissive Power Input Ripple V
Power Supply Input Current I
Power Consumption
Rush current I
LCD
c TYP
P
c MAX
P
RUSH
LCD
dRF
Min Typ Max
4.5 5 5.5
- 820 1025
- 1178 1473
- 4.1 5.1
- 5.9 7.4
- 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 & Green Pattern for power consumption measurement
Ver 1.0 Oct. 17. 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 - 120 130 mA 1, 2, 5
LED String Voltage Vs 40.6 43.4 46.2 V 1, 5
Power Consumption
LED Life Time LED_LT 30,000 - - Hrs 3
PBar - 15.6 16.6 Watt 1, 2, 4
Min. Typ. Max.
Values
Unit Notes
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.
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 P
Bar = 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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Product Specification
LM270WF5
Liquid Crystal Display
Ver 1.0 Oct. 17. 2012
3-2. Interface Connections
Table 3. MODULE CONNECTOR(CN1) PIN CONFIGURATION
3-2-1. LCD Module
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. ITLC is Interlace mode selection pin. (L : Normal Mode, H : Interlace mode)
If you don’t use this pin, it should be connected to GND.
#1 #30
#1
Rear view of LCM
#30
No Symbol Description No Symbol Symbol
1
FR0M
Minus signal of odd channel 0 (LVDS)
16
SR1P
Plus signal of even channel 1 (LVDS)
2
FR0P
Plus signal of odd channel 0 (LVDS)
17
GND
Ground
3
FR1M
Minus signal of odd channel 1 (LVDS)
18
SR2M
Minus signal of even channel 2 (LVDS)
4
FR1P
Plus signal of odd channel 1 (LVDS)
19
SR2P
Plus signal of even channel 2 (LVDS)
5
FR2M
Minus signal of odd channel 2 (LVDS)
20
SCLKINM
Minus signal of even clock channel (LVDS)
6
FR2P
Plus signal of odd channel 2 (LVDS)
21
SCLKINP
Plus signal of even clock channel (LVDS)
7
GND
Ground
22
SR3M
Minus signal of even channel 3 (LVDS)
8
FCLKINM
Minus signal of odd clock channel (LVDS)
23
SR3P
Plus signal of even channel 3 (LVDS)
9
FCLKINP
Plus signal of odd clock channel (LVDS)
24
GND
Ground
10
FR3M
Minus signal of odd channel 3 (LVDS)
25
NC
No Connection (I2C Serial interface for LCM)
11
FR3P
Plus signal of odd channel 3 (LVDS)
26
NC
No Connection.(I2C Serial interface for LCM)
12
SR0M
Minus signal of even channel 0 (LVDS)
27
ITLC
Interlace mode selection
13
SR0P
Plus signal of even channel 0 (LVDS)
28
VLCD
Power Supply +5.0V
14
GND
Ground
29
VLCD
Power Supply +5.0V
15
SR1M
Minus signal of even channel 1 (LVDS)
30
VLCD
Power Supply +5.0V
- LCD Connector(CN1) : IS100-L30O-C23 (UJU) , GT103-30S-HF15 (LSM)
- Mating Connector : FI-X30C2L (Manufactured by JAE) or Equivalent
IS100-L30O-C23
FIG.4 Connector diagram
LM270WF5
Liquid Crystal Display
Product Specification
Table 4. REQUIRED SIGNAL ASSIGNMENT FOR Flat Link (TI:SN75LVDS83) Transmitter
Pin # Require Signal Pin Name Pin # Require Signal Pin Name
1 Power Supply for TTL Input VCC 29 Ground pin for TTL GND
2 TTL Input (R7) D5 30 TTL Input (DE) D26
3 TTL Input (R5) D6 31 TTL Level clock Input TX CLKIN
4 TTL Input (G0) D7 32 Power Down Input PWR DWN
5 Ground pin for TTL GND 33 Ground pin for PLL PLL GND
6 TTL Input (G1) D8 34 Power Supply for PLL PLL VCC
7 TTL Input (G2) D9 35 Ground pin for PLL PLL GND
8 TTL Input (G6) D10 36 Ground pin for LVDS LVDS GND
9 Power Supply for TTL Input VCC 37 Positive LVDS differential data output 3 TxOUT3＋
10 TTL Input (G7) D11 38 Negative LVDS differential data output 3 TxOUT3−
11 TTL Input (G3) D12 39 Positive LVDS differential clock output TX CLKOUT＋
12 TTL Input (G4) D13 40 Negative LVDS differential clock output TX CLKOUT−
13 Ground pin for TTL GND 41 Positive LVDS differential data output 2 TX OUT2＋
14 TTL Input (G5) D14 42 Negative LVDS differential data output 2 TX OUT2−
15 TTL Input (B0) D15 43 Ground pin for LVDS LVDS GND
16 TTL Input (B6) D16 44 Power Supply for LVDS LVDS VCC
17 Power Supply for TTL Input VCC 45 Positive LVDS differential data output 1 TX OUT1＋
46 Negative LVDS differential data output 1 TX OUT1− 18 TTL Input (B7) D17
19 TTL Input (B1) D18
20 TTL Input (B2) D19
22 TTL Input (B3) D20
23 TTL Input (B4) D21
24 TTL Input (B5) D22
25 TTL Input (RSVD) D23
26 Power Supply for TTL Input VCC 54 TTL Input (R2) D2
47 Positive LVDS differential data output 0 TX OUT0＋
48 Negative LVDS differential data output 0 TX OUT0−
49 Ground pin for LVDS LVDS GND 21 Ground pin for TTL Input GND
50 TTL Input (R6) D27
51 TTL Input (R0) D0
52 TTL Input (R1) D1
53 Ground pin for TTL GND
55 TTL Input (R3) D3 27 TTL Input (HSYNC) D24
56 TTL Input (R4) D4 28 TTL Input (VSYNC) D25
Notes : 1. Refer to LVDS Transmitter Data Sheet for detail descriptions.
2. 7 means MSB and 0 means LSB at R,G,B pixel data
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