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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
Ver 1.0 Oct. 17. 2012
2 / 34
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
3 / 34
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
Ver 1.0 Oct. 17. 2012
4 / 34
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
5 / 34
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
7 / 34
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.
Ver 1.0 Oct. 17. 2012
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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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LVDS Input characteristics
LVDS +
LVDS -
0V
V
CM
# |VID| = |(LVDS+) – (LVDS-)|
# V
CM
= {(LVDS+) + (LVDS-)}/2
|VID|
V
IN_MAXVIN_MIN
1. DC Specification
LM270WF5
Liquid Crystal Display
Product Specification
LVDS Differential Voltage |V
LVDS Common mode Voltage V
LVDS Input Voltage Range V
Change in common mode Voltage ΔV
2. AC Specification
LVDS Clock to Data Skew Margin
Description Symbol Min Max Unit Notes
| 200 600 mV -
ID
CM
IN
CM -! 250 mV -
LVDS Clock
LVDS D ata
SKEW
clk
t
( F
t
SKEW
1 ) 95 MHz > Fclk ≥ 85 MHz : - 300 ~ + 300
2 ) 85 MHz > Fclk ≥ 65 MHz : - 400 ~ + 400
3 ) 65 MHz > Fclk ≥ 30 MHz : - 600 ~ + 600
Description Symbol Min Max Unit Notes
t
SKEW
t
SKEW
t
SKEW
1.0 1.5 V -
0.7 1.8 V -
T clk
clk
= 1 / T
)
- 300 + 300 ps 95MHz > Fclk ≥ 85MHz
- 400 + 400 ps 85MHz > Fclk ≥ 65MHz
- 600 + 600 ps 65MHz > Fclk ≥ 30MHz
LVDS Clock to Clock Skew Margin
(Even to Odd)
Ver 1.0 Oct. 17. 2012
t
SKEW_EO
- 1/7 + 1/7 T
clk
-
11 / 34
LVDS Even Data
LVDS Odd Clock
LVDS Even Clock
t
SKEW_EO
T
clk
T
clk
OG0 OR5 OR4 OR3 OR2 OR1 OR0
OB1 OB0 OG5 OG4 OG3 OG2 OG1
DE
VSYNC HSYNC
OB5 OB4 OB3 OB2
X OB7 OB6 OG7 OG6 OR7 OR6
Current(Nth) CyclePrevious(N-1)th Cycle Next(N+1)th Cycle
RCLK +
RXinO0 +/-
Tclk * 4/7 Tclk * 3/7
Tclk
Tclk * 1/7
MSB R7
R6
R5
R4
R3
R2
R1
R0LSB
EG0 ER5 ER4 ER3 ER2 ER1 ER0
EB1 EB0 EG5 EG4 EG3 EG2 EG1
DE
VSYNC HSYNC
EB5 EB4 EB3 EB2
X EB7 EB6 EG7 EG6 ER7 ER6
* ODD = 1st Pixel
EVEN = 2nd Pixel
RXinO1 +/-
RXinO2 +/-
RXinO3 +/-
RXinE0 +/-
RXinE1 +/-
RXinE2 +/-
RXinE3 +/-
OR3 OR2 OR1 OR0
OG4 OG3 OG2 OG1
OB5 OB4 OB3 OB2
OG7 OG6 OR7 OR6
ER3 ER2 ER1 ER0
EG4 EG3 EG2 EG1
EB5 EB4 EB3 EB2
EG7 EG6 ER7 ER6
OG0 OR5 OR4
OB1 OB0 OG5
DE
VSYNC HSYNC
X OB7 OB6
EG0 ER5 ER4
EB1 EB0 EG5
DE
VSYNC HSYNC
X EB7 EB6
3. Data Format
1) LVDS 2 Port
LM270WF5
Liquid Crystal Display
Product Specification
< Clock skew margin between channel >
Ver 1.0 Oct. 17. 2012
< LVDS Data Format >
12 / 34
Product Specification
LM270WF5
Liquid Crystal Display
Ver 1.0 Oct. 17. 2012
13 / 34
3-2-2. LED Interface
Table 5. LED connector pin configuration
Pin Symbol Description Notes
1 FB1 Channel1 Current Feedback
2 NC No connection
3 VLED LED Power Supply
4 VLED LED Power Supply
5 FB2 Channel2 Current Feedback
6 FB3 Channel3 Current Feedback
FIG. 5 Backlight connector view
Rear view of LCM
#1
#6
The LED interface connector is a model SM06B-SHJH(HF), wire-locking type manufactured by JST.
The mating connector is a SHJP-06V-S(HF) or SHJP-06V-A-K(HF) and Equivalent.
The pin configuration for the connector is shown in the table below..
LM270WF5
Liquid Crystal Display
Product Specification
3-4 Signal timing specifications
This is the signal timing required at the input of the User connector. All of the interface signal timing should be
satisfied with the following specifications for it’s proper operation.
Table 7. Timing table
ITEM Symbol Min Typ Max Unit Note
DCLK
Hsync
Vsync
Period tCLK
Frequency -
Period tHP
Horizontal Valid tHV
Horizontal Blank tHB
Frequency fH
Width tWH
Horizontal Back Porch tHBP
Horizontal Front Porch tHFP
Period tVP
Vertical Valid tVV
Vertical Blank tVB
Frequency fV
Width tWV
11.4 3 13.89 17.6 ns
57 72 87.5 MHz
1024 1088 1120 tCLK
960 960 960 tCLK
64 128 160
64 66 83 KHz
16 32 48 tCLK
32 48 64
16 48 48
1090 11 00 1160 tHP
1080 1080 1080 tHP
10 20 80 tHP
48 60 75 Hz
2 4 16 tHP
5
Vertical Back Porch tVBP
Vertical Front Porch tVFP
Note: Hsync period and Hsync width-active should be even number times of t
times of t
CLK, display control signal can be asynchronous. In order to operate this LCM a Hsync,
5 8 32
3 8 32
CLK. If the value is odd number
Vsyn, and DE(data enable) signals should be used.
1. The performance of the electro-optical characteristics may be influenced by variance of the vertical
refresh rates.
2. Vsync and Hsync should be keep the above specification.
3. Hsync Period, Hsync Width, and Horizontal Back Porch should be any times of of character
number(4).
4. The polarity of Hsync, Vsync is not restricted.
5. The Max frequency of 1920X1080 resolution is 82.5Mhz
Ver 1.0 Oct. 17. 2012
14 / 32
3-4. Signal Timing Waveforms
1. DCLK , DE, DATA waveforms
LM270WF5
Liquid Crystal Display
Product Specification
DCLK
tCLK
First data
Second data
DE(Data Enable)
2. Horizontal waveform
Invalid data
Invalid data
Valid data
Pixel 0,0
Valid data
Pixel 1,0
Pixel 2,0
Pixel 3,0
tHV
Invalid data
Invalid data
tHP
DE(Data Enable)
3. Vertical waveform
tVV
tHP
DE(Data Enable)
Ver 1.0 Oct. 17. 2012
DE
t
VP
DE
15 / 34
LM270WF5
Liquid Crystal Display
Product Specification
3-5. Color Input Data Reference
The Brightness of each primary color(red,green,blue) is based on the 8-bit gray scale data input for the color;
the higher the binary input, the brighter the color. The table below provides a reference for color versus data
input.
Table 7. COLOR DATA REFERENCE
Input Color Data
Basic
Color
RED
Color
Black 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Red (255) 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Green (255) 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0
Blue (255) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1
Cyan 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Magenta 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1
Yellow 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0
White 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
RED (000) Dark 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
RED (001) 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
... ... ... ...
RED (254) 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
RED (255) 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
GREEN (000) Dark 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
MSB LSB
R7 R6 R5 R4 R3 R2 R1 R0 G7 G6 G5 G4 G3 G2 G1 G0 B7 B6 B5 B4 B3 B2 B1 B0
RED
MSB LSB
GREEN
BLUE
MSB LSB
GREEN (001) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0
GREEN
GREEN (254) 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0
GREEN (255) 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0
BLUE (000) Dark 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
BLUE (001) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
BLUE
BLUE (254) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 0
BLUE (255) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1
... ... ... ...
... ... ... ...
Ver 1.0 Oct. 17. 2012
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3-5. Power sequence
LM270WF5
Liquid Crystal Display
Product Specification
90% 90%
Power supply for LCD
Vcc
0V
Interface signal
V
I
Power Supply for LED
Table 8. POWER SEQUENCE
Parameter
T1 0.5 - 10 ms
10%
T1
T2 T5 T7
Valid data
T3
T4
LED on
OFF
Values
Min Typ Max
10%
OFF
Units
T2 0.01 - 50 ms
T3 500 - - ms
T4 200 - - ms
T5 0.01 - 50 ms
T7 1000 - ms
Notes :
1. Please V
power on only after connecting interface cable to LCD.
LCD
2. Please avoid floating state of interface signal at invalid period.
3. When the interface signal is invalid, be sure to pull down the power supply for
LCD V
LCD
to 0V.
4. LED power must be turn on after power supply for LCD an interface signal are valid.
Ver 1.0 Oct. 17. 2012
17 / 34
Product Specification
LM270WF5
Liquid Crystal Display
3-7. V
LCD
1) Dip condition
3.5V ≤V
2) V
＜ 3.5V
LCD
V
LCD
Power Dip Condition
V
LCD
4.5V
3.5V
td
FIG.6 Power dip condition
＜ 4.5V , td≤20ms
LCD
-dip conditions should also follow the Power On/Off conditions for supply voltage.
GND(ground)
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LM270WF5
Liquid Crystal Display
Product Specification
4. Optical Specifications
Optical characteristics are determined after the unit has been ‘ON’ for approximately 30 minutes
in a dark environment at 25±2°C. The values specified are at an approximate distance 50cm from the LCD
surface at a viewing angle of and equal to 0 ° and aperture 1 degree.
FIG. 1 presents additional information concerning the measurement equipment and method.
PR 880 or RD 80S
or PR650
Optical Stage(x,y)
LCD Module
50cm
FIG.7 Optical Characteristic Measurement Equipment and Method
4-1. 2D Optical specifications
Table 9. OPTICAL CHARACTERISTICS
Parameter Symbol
(Ta=25 °C, V
Min Typ Max
Contrast Ratio CR 600 1000 - 1
Surface Luminance, white L
Luminance Variation
Gray To Gray T
Response Time
Gray-to-Gray
(BW)
G to G
WH
75 - - % 3
WHITE
GTG_AVR
BW
200 250 - cd/m
- 14 25 ms 4
- 8 - ms
RED Rx
Ry 0.337
Color Coordinates [CI
E1931]
(By PR650)
GREEN Gx 0.320
Gy 0.612
BLUE Bx 0.150
Typ
-0.03
By 0.068
WHITE Wx 0.313
Wy 0.329
Color Shift
(Avg. Δu’v’ < 0.02)
Horizontal
Vertical
CST_H
CST_V
- 140 -
- 100 -
Viewing Angle (CR>10)
General
Horizontal
Vertical
Color gamut (CG, CIE1931)
Luminance uniformity –
Angular dependence (TCO 5.1)
H
V
LR - - 1.73 11
170 178 170 178 -
-
Color uniformity
Angular dependence( TCO 5.1)
Gray Scale - 2.2 9
=5V, fV=60Hz Dclk=144MHz, IBL=120 mA)
LCD
Values
Units Notes
2
Reference
0.653
Typ
+0.03
Degree 5
Degree 6
72 - %
0.025 12
2
10
Ver 1.0 Oct. 17. 2012
19 / 34
Product Specification
3122
4
'
++−
=
yx
x
u
3122
9
'
++−
=
yx
y
v
2
21
2
21
)''()''('' vvuuvu −+−=Δ
pixelsblack all with Luminance Surface
pixels whiteall with Luminance Surface
RatioContrast =
100
)L .... ,L ,(L Maximum
)L .. ,L,Minimum(L
P9P2P1
P9P2P1
×
…
=
WHITE
δ
24
)''(
)''(
24
1
∑
=
Δ
=Δ
i
ivu
vuAvg
100
Degree) (0 Value GammaCenter
Degree) 60Light Reft, Down, (Up, Value Gamma angle View
1 ×
"
"
#
$
%
%
&
'
−=GSR
LM270WF5
Liquid Crystal Display
Notes 1. Contrast Ratio(CR) is defined mathematically as :
It is measured at center point(Location P1)
2. Surface luminance(LWH)is luminance value at Center 1 point(P1) across the LCD surface 50cm fro
m the surface with all pixels displaying white. For more information see FIG.8 (By PR880)
3. The variation in surface luminance , WHITE is defined as :
Where L1 to L9 are the luminance with all pixels displaying white at 9 locations.
For more information see FIG.8
4. Gray to gray response time is the time required for the display to transition from gray to gray. For
additional information see Table 10.
5. Color shift is the angle at which the average color difference for all Macbeth is lower than 0.02.
For more information see FIG.9
- Color difference (Δu’v’)
u’1, v’1 : u’v’ value at viewing angle direction
u’2, v’2 : u’v’ value at front (θ=0)
i : Macbeth chart number (Define 23 page)
- Pattern size : 25% Box size
- Viewing angle direction of color shift : Horizontal, Vertical
6. Viewing angle is the angle at which the contrast ratio is greater than 10. The angles are
determined for the horizontal or x axis and the vertical or y axis with respect to the z axis which
is normal to the LCD surface. For more information see FIG.10
7. GSR is the rate of gamma shift at up, down, left and right 60 degree viewing angle compare with
center gamma. For more information see FIG.11 and FIG.12
- GSR (
.
8. WPT (White Point Tracking) is the variation of color temperature between G255 and G63.
(By PR650)
Ver 1.0 Oct. 17. 2012
) is defined as :
Gamma
(By RD80S)
(By EZ Contrast)
(By PR880)
(By PR880)
(By PR880)
(By EZ Contrast)
20 / 34
LM270WF5
Liquid Crystal Display
Product Specification
Notes 9. Gamma Value is approximately 2.2. For more information see Table 11.
Notes 10. Response time is the time required for the display to transit from any gray to white (Rise Time, TrR)
and from any gray to black (Decay time, TrD).
G to GBW Spec stands for average value of all measured points.
Measuring point for surface luminance & measuring point for luminance variation.
H
(By RD80S)
H/2
●
●
P2
P5
V/2
V
●
V/10
P7
●
P3
●
P1
●
P8
H/10
●
●
●
P4
P6
P9
FIG.8 Measure Point for Luminance
The Gray to Gray response time is defined as the following figure and shall be measured by switching the input sig
nal for “Gray To Gray “.
- Gray step : 5 Step
- TGTG_AVR is the total average time at rising time and falling time for “Gray To Gray “.
- if system use ODC ( Over Driving Circuit) function, Gray to Gary response time may be 5ms~8ms GtG
* it depends on Overshoot rate.
Table. 10 GTG Gray Table
Rising Time
Gray to Gray
G255 G191 G127 G63 G0
Falling Time G255
G191
G127
G63
G0
Ver 1.0 Oct. 17. 2012
21 / 34
LM270WF5
Liquid Crystal Display
Product Specification
G to G(BW) Response time is defined as the following figure and shall be measured by switching the input si
gnal for “Gray(N)” and “Black or White”.
Tr
100
90
Optical
Response
10
0
Gray(N)
White
N = 0(Black)~255(White)
Color shift is defined as the following test pattern and color.
Gray(N)
Tf
Black
25% Box size
FIG.9 Color Shift Test Pattern
Average RGB values in Bruce RGB for Macbeth Chart
Dark skin (i=1) Light skin Blue sky Foliage Blue flower Bluish green
R 98 206 85 77 129 114
G 56 142 112 102 118 199
B 45 123 161 46 185 178
Orange Purplish blue Moderate red Purple Yellow green Orange yellow
R 219 56 211 76 160 230
G 104 69 67 39 193 162
B 24 174 87 86 58 29
Blue Green Red Yellow Magenta Cyan
R 26 72 197 241 207 35
G 32 148 27 212 62 126
B 145 65 37 36 151 172
White Neutral 8 Neutral 6.5 Neutral 5 Neutral 3.5 Black
R 240 206 155 110 63 22
G 240 206 155 110 63 22
B 240 206 155 110 63 22
Ver 1.0 Oct. 17. 2012
22 / 34
Dimension of viewing angle range.
Normal
Y
E
φ
θ
φ
= 0°, Right
φ
= 180°, Left
φ
= 270°, Down
φ
= 90°, Up
b
r
LaVL +=
)log()log()log( aVrLL
b
+=−
LM270WF5
Liquid Crystal Display
Product Specification
FIG.10 Viewing angle
FIG.11 Sample Luminance vs. gray scale
(using a 256 bit gray scale)
FIG.12 Sample Log-log plot of luminance
vs. gray scale
Here the Parameter α and γ relate the signal level V to the luminance L.
The GAMMA we calculate from the log-log representation (FIG.11)
Ver 1.0 Oct. 17. 2012
23 / 34
Product Specification
LM270WF5
Liquid Crystal Display
Ver 1.0 Oct. 17. 2012
24 / 34
Table 11. Gray Scale Specification
Gray Level Relative Luminance [%] (Typ.)
0!
0.1
15!
0.3
31!
1.08
47!
2.5
63!
4.72
79!
7.7
95!
11.49
111!
16.2
127!
21.66
143!
28.2
159!
35.45
175!
43.8
191!
53.00
207!
63.3
223!
74.48
239!
86.8
255!
100
Product Specification
LM270WF5
Liquid Crystal Display
Ver 1.0 Oct. 17. 2012
25 / 34
Notes 11 : Luminance Uniformity - angular – dependence (LR& TB)
TCO 5.0 Luminance uniformity – angular dependence, is the capacity of the VDU
to present the same Luminance level independently of the viewing direction.
The angular-dependent luminance uniformity is calculated as the ratio of maximum luminance to
minimum luminance in the specified measurement areas.
- Test pattern : Full white 4˚× 4˚square size, back ground shall be set to 80%
image loading, RGB 204, 204, 204
- Test luminance : ≥200cd/㎡
- Test point : 5-point
- Test distance : D * 1.5
- Test method : LR = ((L
max.+30deg.
/ L
min. +30deg.
) + (L
max. -30deg.
/ L
min. -30deg.
)) / 2
TB = ((L
max.+15deg.
/ L
min. +15deg.
)
< Luminance uniformity - angular dependence measuring point >
FIG. 13 Luminance Uniformity angular dependence
H
V
H/10
V/2
H/2
V/10
V/10
H/10
D
Product Specification
LM270WF5
Liquid Crystal Display
Ver 1.0 Oct. 17. 2012
26 / 34
Note 12 :. Colour uniformity Angular dependence (LR)
TCO 5.0 Color uniformity – angular dependence, is the capacity of the VDU
to present the same Colour level independently of the viewing direction.
The angular-dependent colour uniformity is calculated as the largest difference in △u'v' value
- Test pattern : Full white 4˚× 4˚square size, back ground shall be set to 80%
image loading, RGB 204, 204, 204
- Test luminance : ≥200cd/㎡
- Test point : 3-point
- Test distance : D * 1.5
- Test method
1. The screen shall then be rotated ±30 degrees around a vertical axis through
the screen centre-point and the chromaticity co-ordinates at positions PL, PR,
(u'
PL/ ± 30º
, v'
PL/ ± 30º
and u'
PR/ ± 30º
, v'
PR/ ± 30º
respectively) shall be recorded.
2. △u’v’ shall be calculated for each measured position using the formula
a. △u’v’
+30º
=((u'
PL/ + 30º
- u'
PR/ + 30º
)2+(v'
PL/ + 30º
- v'
PR/ +30º
)2)^
1/2
b. △u’v
-30º
=((u'
PL/ - 30º
- u'
PR/ - 30º
)2+(v'
PL/ - 30º
- v'
PR/ -30º
)2)^
1/2
3. The largest difference in △ u'v' value shall be reported
< Colour uniformity - angular dependence measuring point >
FIG. 14 Colour uniformity Angular dependence
H
V
H/10
V/2
H/2
H/10
D
P
L
P
C
P
R
LM270WF5
Liquid Crystal Display
Product Specification
5. Mechanical Characteristics
The contents provide general mechanical characteristics. In addition the figures in the next page are detailed
mechanical drawing of the LCD.
Horizontal 630mm
Outline Dimension
Bezel Area
Active Display Area
Weight Typ : 3,150, Max : 3,310
Surface Treatment
Vertical 368.2mm
Depth 11.7mm
Horizontal 602mm
Vertical 340.4mm
Horizontal 597.888mm
Vertical 336.312mm
Hard coating(3H)
Anti-Glare treatment of the front polarizer
Notes : Please refer to a mechanic drawing in terms of tolerance at the next page.
Ver 1.0 Oct. 17. 2012
27 / 34
<FRONT VIEW>
LM270WF5
Liquid Crystal Display
Product Specification
Ver 1.0 Oct. 17. 2012
Product Specification
LM270WF5
Liquid Crystal Display
<REAR VIEW>
* Reverse Panel
Ver 1.0 Oct. 17. 2012
Product Specification
6. Reliability
Environment test condition
No Test Item Condition
1 High temperature storage test Ta = 6 0°C 240 h
2 Low temperature storage test Ta = - 20° C 240 h
3 High temperature operation test Ta = 50° C 50 % RH 24 0h
4 Low temperature operation test Ta= 0° C 24 0h
Wave form : random
Vibration level : 1.00G RMS
Bandwidth : 10-300Hz
Duration : X, Y, Z, 10 min
One time each direction
5
Vibration test
(non-operating)
LM270WF5
Liquid Crystal Display
Shock level : 100G
6
7 Humidity condition Operation Ta=
8
9
Shock test
(non-operating)
Altitude
operating
storage / shipment
Maximum Storage Humidity for
4 corner light leakage Mura.
Waveform : half sine wave, 2ms
Direction : ±X, ±Y, ±Z
One time each direction
!
0 - 16,400 feet(5,000m)
0 - 40,000 feet(12,192m)
Max 70%RH , Ta=40℃
40 °C ,90%RH
Ver 1.0 Oct. 17. 2012
30 / 34
Product Specification
7. International Standards
7-1. Safety
a) UL 60950-1, Underwriters Laboratories Inc.
Information Technology Equipment - Safety - Part 1 : General Requirements.
b) CAN/CSA C22.2 No.60950-1-07, Canadian Standards Association.
Information Technology Equipment - Safety - Part 1 : General Requirements.
c) EN 60950-1, European Committee for Electrotechnical Standardization (CENELEC).
Information Technology Equipment - Safety - Part 1 : General Requirements.
d) IEC 60950-1, The International Electrotechnical Commission (IEC).
Information Technology Equipment - Safety - Part 1 : General Requirements.
(Including report of IEC60825-1:2001 clause 8 and clause 9)
Notes
1. Laser (LED Backlight) Information
Class 1M LED Product
IEC60825-1 : 2001
Embedded LED Power (Class1M)
LM270WF5
Liquid Crystal Display
2. Caution
: LED inside.
Class 1M laser (LEDs) radiation when open.
Do not open while operating.
7-2. EMC
a) ANSI C63.4 “American National Standard for Methods of Measurement of Radio-Noise
Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz.”
American National Standards Institute (ANSI), 2003.
b) CISPR 22 “Information technology equipment – Radio disturbance characteristics – Limit and
methods of measurement." International Special Committee on Radio Interference
(CISPR), 2005.
c) CISPR 13 “Sound and television broadcast receivers and associated equipment – Radio disturbance
characteristics – Limits and method of measurement." International Special Committee on Radio
Interference (CISPR), 2006.
7-3. Environment
a) RoHS, Directive 2002/95/EC of the European Parliament and of the council of 27 January 2003
Ver 1.0 Oct. 17. 2012
31 / 34
Product Specification
8. Packing
8-1. Designation of Lot Mark
a) Lot Mark
A B C D E F G H I J K L M
A,B,C : SIZE(INCH) D : YEAR
E : MONTH F ~ M : SERIAL NO.
Note
1. YEAR
LM270WF5
Liquid Crystal Display
Year
Mark
C B A
2014 E 2015
D
2013 2012 2011
2016 G 2017 H 2018 J 2019
F
2. MONTH
Month
Mark
Apr 5 May
4
Jun 7 Jul 8 Aug 9 Sep
6
b) Location of Lot Mark
Serial No. is printed on the label. The label is attached to the backside of the LCD module.
This is subject to change without prior notice.
8-2. Packing Form
a) Package quantity in one box : 10-LCMs ( 1 Module is packed in 1 AL Bag )
b) Box Size : 700(L) X 355(W) X 430(H)
2020
K
Oct
A
Nov
B
Dec Mar Feb Jan
C 3 2 1
Ver 1.0 Oct. 17. 2012
32 / 34
LM270WF5
Liquid Crystal Display
Product Specification
9. PRECAUTIONS
Please pay attention to the followings when you use this TFT LCD module.
9-1. MOUNTING PRECAUTIONS
(1) You must mount a module using holes arranged in four corners or four sides.
(2) You should consider the mounting structure so that uneven force (ex. Twisted stress) is not applied to the
module. And the case on which a module is mounted should have sufficient strength so that external
force is not transmitted directly to the module.
(3) Please attach the surface transparent protective plate to the surface in order to protect the polarizer.
Transparent protective plate should have sufficient strength in order to the resist external force.
(4) You should adopt radiation structure to satisfy the temperature specification.
(5) Acetic acid type and chlorine type materials for the cover case are not desirable because the former
generates corrosive gas of attacking the polarizer at high temperature and the latter causes circuit break
by electro-chemical reaction.
(6) Do not touch, push or rub the exposed polarizers with glass, tweezers or anything harder than HB
pencil lead. And please do not rub with dust clothes with chemical treatment.
Do not touch the surface of polarizer for bare hand or greasy cloth.(Some cosmetics are detrimental
to the polarizer.)
(7) When the surface becomes dusty, please wipe gently with absorbent cotton or other soft materials like
chamois soaks with petroleum benzene. Normal-hexane is recommended for cleaning the adhesives
used to attach front / rear polarizers. Do not use acetone, toluene and alcohol because they cause
chemical damage to the polarizer.
(8) Wipe off saliva or water drops as soon as possible. Their long time contact with polarizer causes
deformations and color fading.
(9) Do not open the case because inside circuits do not have sufficient strength.
(10) As The IPS panel is sensitive & slim, please recommend the metal frame of the system supports the panel
by the double side-mount.
9-2. OPERATING PRECAUTIONS
(1) The spike noise causes the mis-operation of circuits. It should be lower than following voltage :
V=±200mV(Over and under shoot voltage)
(2) Response time depends on the temperature.(In lower temperature, it becomes longer.)
(3) Brightness depends on the temperature. (In lower temperature, it becomes lower.)
And in lower temperature, response time(required time that brightness is stable after turned on) becomes
longer.
(4) Be careful for condensation at sudden temperature change. Condensation makes damage to polarizer or
electrical contacted parts. And after fading condensation, smear or spot will occur.
(5) When fixed patterns are displayed for a long time, remnant image is likely to occur.
(6) Module has high frequency circuits. Sufficient suppression to the electromagnetic interference shall be
done by system manufacturers. Grounding and shielding methods may be important to minimized the
interference.
(7) Please do not give any mechanical and/or acoustical impact to LCM. Otherwise, LCM can’t be operated
its full characteristics perfectly.
(8) A screw which is fastened up the steels should be a machine screw.
(if not, it causes metallic foreign material and deal LCM a fatal blow)
(9) Please do not set LCD on its edge.
(10) When LCMs are used for public display defects such as Yogore, image sticking can not guarantee.
(11) When this reverse model is used as a forward-type model(PCB on top side), LGD can not guarantee
any defects of LCM.
(12) LCMs cannot support “Interlaced Scan Method”
Ver 1.0 Oct. 17. 2012
33 / 34
LM270WF5
Liquid Crystal Display
Product Specification
9-3. ELECTROSTATIC DISCHARGE CONTROL
Since a module is composed of electronic circuits, it is not strong to electrostatic discharge. Make certain that
treatment persons are connected to ground through wrist band etc. And don’t touch interface pin directly.
9-4. PRECAUTIONS FOR STRONG LIGHT EXPOSURE
Strong light exposure causes degradation of polarizer and color filter.
9-5. STORAGE
When storing modules as spares for a long time, the following precautions are necessary.
(1) Store them in a dark place. Do not expose the module to sunlight or fluorescent light. Keep the temperature
between 5°C and 35°C at normal humidity.
(2) The polarizer surface should not come in contact with any other object.
It is recommended that they be stored in the container in which they were shipped.
9-6. HANDLING PRECAUTIONS FOR PROTECTION FILM
(1) The protection film is attached to the bezel with a small masking tape.
When the protection film is peeled off, static electricity is generated between the film and polarizer.
This should be peeled off slowly and carefully by people who are electrically grounded and with well ion-
blown equipment or in such a condition, etc.
(2) When the module with protection film attached is stored for a long time, sometimes there remains a very
small amount of glue still on the bezel after the protection film is peeled off.
(3) You can remove the glue easily. When the glue remains on the bezel surface or its vestige is recognized,
please wipe them off with absorbent cotton waste or other soft material like chamois soaked with normal hexane.
Ver 1.0 Oct. 17. 2012
34 / 34
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