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LM270WF3-TLA1
Specification
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LG Display LM270WF3-TLA1 Specification

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() Preliminary Specification ( ) Final Specification
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LM270WF3
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
MODEL
APPROVED BY
/
/
ACERBUYER
SIGNATURE
DATE
27” Full HD TFT LCDTitle
LG Display Co., Ltd.SUPPLIER
LM270WF3*MODEL
TLA1SUFFIX
*When you obtain standard approval,
please use the above model name without suffix
APPROVED BY
K.G. PARK / G.Manager
REVIEWED BY
J.H.SONG / Manager [C]
S.Y.AN / Manager [M]
H.J.LEE / Manager [P]
DATE
PREPARED BY
/
Please return 1 copy for your confirmation with
your signature and comments.
Ver. 0.5 Aug., 18. 2010
N.H. KIM / Engineer
Product Engineering Dept.
LG Display Co., Ltd
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LM270WF3
Liquid Crystal Display
Product Specification
CONTENTS
COVER
CONTENTS
RECORD OF REVISIONS
GENERAL DESCRIPTION1
ABSOLUTE MAXIMUM RATINGS2
ELECTRICAL SPECIFICATIONS3
ELECTRICAL CHARACTREISTICS3-1
INTERFACE CONNECTIONS3-2
LVDS CHARACTERISTICS3-3
SIGNAL TIMING SPECIFICATIONS3-4
SIGNAL TIMING WAVEFORMS3-5
COLOR DATA REFERNECE3-6
POWER SEQUENCE3-7
OPTICAL SFECIFICATIONS4
ITEMNo
Page
1
2
3
4
5
6
6
9
12
16
17
18
19
20
MECHANICAL CHARACTERISTICS5
RELIABLITY6
INTERNATIONAL STANDARDS7
SAFETY7-1
EMC7-2
ENVIRONMENT7-3
PACKING8
DESIGNATION OF LOT MARK8-1
PACKING FORM8-2
PRECAUTIONS9
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27
28
28
28
28
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29
29
30
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LM270WF3
Liquid Crystal Display
Product Specification
RECORD OF REVISIONS
Revision
No
DescriptionPageRevision Date
-May,27,20100.1
First Draft, Preliminary Specifications
Power Consumption Update6July,08,20100.2
Color Coordinates Update20
Weight Update26
Power Consumption Update6Aug.,02,20100.3
LED bar Electrical Characteristics Update7Aug.,10,20100.4
Drawing Update27,28
BOX Size Update31
Optical Characteristics Update20Aug.,18,20100.5
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1. General Description
LM270WF3-TLA1 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 white mode. It has a 27 inch diagonally measured active display area with FHD resolution (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(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. In combination with the vertical arrangement of the sub-pixels, the LM270WF3-TLA1 characteristics provide an excellent flat panel display for office automation products such as monitors.
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LM270WF3
Liquid Crystal Display
Product Specification
FIG. 1 Block diagram
LVDS 2Port
LVDS 2Port
V
LCD
(+12V)
CN2
(41pin)
CN1
(51pin)
LVDS 3,4
LVDS 1,2
General Features
Mini-LVDS(RGB)
Timing Control Block
Power Circuit Block
FB 4ch
27 inches (68.6cm) diagonalActive Screen Size
630(H) x 368.2(V) x 17.8 (D) mm (Typ.)Outline Dimension
0.3114(H) mm x 0.3114(V) mmPixel Pitch
1920 horizontal x 1080 vertical Pixels, RGB stripe arrangementPixel Format
16.7M colorsColor Depth
400 cd/m
2
(Center, 1 point)Luminance, White
R/L 170(Typ.), U/D 160(Typ.)Viewing Angle(CR>10)
Total 29.28 W (Typ.) ( 5.34 W
3062 g (Typ.)Weight
Transmissive mode, Normally WhiteDisplay Operating Mode
Hard coating (3H) & Anti-Glare treatment of the front polarizerSurface Treatment
Source Driver Circuit
S1
Dual Gate Driver Circuit
G1
TFT - LCD Panel
(1920 Ý RGB Ý 1080 pixels)
G1080
Backlight assembly (Single LED Bar)
@ VLCD, 23.94 W @ 400 cd/m
S1920
2
)Power Consumption
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2. Absolute Maximum Ratings
The following are maximum values which, if exceeded, may cause faulty operation or permanent
damage to the unit.
Table 1. Absolute Maximum Ratings
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LM270WF3
Liquid Crystal Display
Product Specification
Values
Parameter Notes
Symbol
Units
MaxMin
Power Supply Input Voltage
Operating Temperature
Storage Temperature
Operating Ambient Humidity
Storage Humidity
LCD
OP
ST
OP
ST
Vdc12.4-0.3V
C500T
C60-20T
%RH9010H
%RH9010H
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.
90%
60
60%
Wet Bulb Temperature [C]
30
20
10
0
50
40
40%
Humidity [(%)RH]
10%
at 25 r 2C
1
Storage
Operation
10 20 30 40 50 60 70 800-20
Dry Bulb Temperature [C]
Figure 2. Temperature and Relative Humidity
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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 LED/Backlight is typically generated by an LED Driverr. The LED Driver is an external unit to the LCDs.
Table 2. Electrical Characteristics (Module)
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LM270WF3
Liquid Crystal Display
Product Specification
Parameter Symbol
NotesUnit
MaxTypMin
MODULE :
Values
Power Supply Input Voltage
Permissive Power Input Ripple
Differential Impedance
Power Supply Input Current
Power Consumption
Rush current
LCD
dRF
m
I
LCD-MOSAIC_60Hz
I
LCD-Black_60Hz
LCD-MOSAIC_120Hz
LCD-Black_120Hz
LCD
RUSH
Vdc12.412.011.6V
Ohm11010090Z
mA750630-I
mA990830-I
Note :
1. Permissive power ripple should be measured under V
=12.0V, 25·2¶C, fV(frame frequency)= 120Hz
LCD
condition and at that time, we recommend the bandwidth configuration of oscilloscope is to be under 20MHz.
2. The specified current and power consumption are under the V
=12.0V, 25 r 2C, fV= 60Hz condition
LCD
whereas Mosaic pattern shown in the [ Figure 3. ] is displayed.
3. The specified current is measured at the Full black pattern.
4. The duration of rush current is about 5ms and measured under condition that the rising time of power
input is 500us r 20%.
1mVp-p400V
2mA530445-
3mA650545-
2W10.85.34-P
4A3.0--I
Figure 3. Pattern for Electrical Characteristics
Mosaic Pattern(8 x 6)
Full Black Pattern
White : 255Gray Black : 0Gray
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Table 3. LED bar Electrical characteristics
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LM270WF3
Liquid Crystal Display
Product Specification
ConditionSymbolParameter
Values
Power Consumption
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.
Max.Typ.Min.
Unit
Notes
1LED :
2mA120110-IsLED String Current
3V57.854.451.0VsLED String Voltage
4,6Watt25.4323.9422.44PBar
5Hrs--30,000LED_LTLED Life Time
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 110 mA 100% duty current.
4. The specified power consumption is input LED bar power consumption at typical 110 mA 100% duty current.
5. The life is determined as the time at which luminance of the LED is 50% compared to that of initial
value at the typical LED current on condition of continuous operating at 25 r 2C.
6. The LED bar power consumption shown above does not include loss of external driver. The used LED bar current is the LED typical current. Min Power Consumption is calculated with PBar = Vs(Min.) x Is(Typ.) x Nstring Max Power Consumption is calculated with PBar = Vbar(Max.) x Is(Typ) x Nstring
7. LED operating DC Forward Current must not exceed LED Max Ratings at 25 r 2C.
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3-2. Interface Connections
This LCD module employs two kinds of interface connection, 51 pin connector and 41 pin connector are
used for the module electronics.
3-2-1. LCD Module
Table 4. Module Connector (CN1) Pin Configuration
- LCD Connector(CN1): IS050-C51B-C39-A(manufactured by UJU)
- Mating Connector : FI-R51HL(JAE) or compatible
No Symbol Description No Symbol Description
1 GND Ground 27 NC No Connection (BIT)
2 MST MST Option Enable 28 R2AN 2nd LVDS Channel Signal (A-)
3 PWM_OUT PWM Signal Output 29 R2AP 2nd LVDS Channel Signal (A+)
4 NC No Connection (SDA) 30 R2BN 2nd LVDS Channel Signal (B-)
5 NC No Connection (SCL) 31 R2BP 2nd LVDS Channel Signal (B+)
6 NC No Connection 32 R2CN 2nd LVDS Channel Signal (C-)
7 NC No Connection (DISM) 33 R2CP 2nd LVDS Channel Signal (C+)
8 NC No Connection 34 GND Ground
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LM270WF3
Liquid Crystal Display
Product Specification
9 ODC_EN ODC Enable 35 R2CLKN 2nd LVDS Channel Clock Signal(-)
FPS_DET H: High Frame rate, L: Legacy 36 R2CLKP 2nd LVDS Channel Clock Signal(+)
10
11 GND Ground 37 GND Ground
12 R1AN 1st LVDS Channel Signal (A-) 38 R2DN 2nd LVDS Channel Signal (D-)
13 R1AP 1st LVDS Channel Signal (A+) 39 R2DP 2nd LVDS Channel Signal (D+)
14 R1BN 1st LVDS Channel Signal (B-) 40 GND Ground
15 R1BP 1st LVDS Channel Signal (B+) 41 NC No connection
16 R1CN 1st LVDS Channel Signal (C-) 42 NC No connection
17 R1CP 1st LVDS Channel Signal (C+) 43 GND Ground
18 GND Ground 44 GND Ground (AGP)
19 R1CLKN 1st LVDS Channel Clock Signal(-) 45 GND Ground
20 R1CLKP 1st LVDS Channel Clock Signal(+) 46 NC No connection
21 GND Ground 47 NC No connection
22 R1DN 1st LVDS Channel Signal (D-) 48 VLCD Power Supply +12.0V
23 R1DP 1st LVDS Channel Signal (D+) 49 VLCD Power Supply +12.0V
24 GND Ground 50 VLCD Power Supply +12.0V
25 NC No Connection 51 VLCD Power Supply +12.0V
26 NC No Connection
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Table 5. Module Connector (CN2) Pin Configuration
- LCD Connector(CN2): IS050-C41B-C39-A(manufactured by UJU)
- Mating Connector : FI-RE41HL(JAE) or compatible
No Symbol Description No Symbol Description
1 NC No connection 22 GND Ground
2 NC No connection 23 NC No connection
3 NC No connection 24 NC No connection
4 NC No connection 25 GND Ground
5 NC No connection 26 RA4N 4th LVDS Channel Signal (A-)
6 NC No connection 27 RA4P 4th LVDS Channel Signal (A+)
7 NC No connection 28 RB4N 4th LVDS Channel Signal (B-)
8 NC No connection 29 RB4P 4th LVDS Channel Signal (B+)
9 GND Ground 30 RC4N 4th LVDS Channel Signal (C-)
10 RA3N 3rd LVDS Channel Signal (A-) 31 RC4P 4th LVDS Channel Signal (C+)
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LM270WF3
Liquid Crystal Display
Product Specification
11 RA3P 3rd LVDS Channel Signal (A+) 32 GND Ground
12 RB3N 3rd LVDS Channel Signal (B-) 33 RCLK4N 4th LVDS Channel Clock Signal(-)
13 RB3P 3rd LVDS Channel Signal (B+) 34 RCLK4P 4th LVDS Channel Clock Signal(+)
14 RC3N 3rd LVDS Channel Signal (C-) 35 GND Ground
15 RC3P 3rd LVDS Channel Signal (C+) 36 RD4N 4th LVDS Channel Signal (D-)
16 GND Ground 37 RD4P 4th LVDS Channel Signal (D+)
17 RCLK3N 3rd LVDS Channel Clock Signal(-) 38 GND Ground
18 RCLK3P 3rd LVDS Channel Clock Signal(+) 39 NC No connection
19 GND Ground 40 GND Ground
20 RD3N 3rd LVDS Channel Signal (D-) 41 GND Ground
21 RD3P 3rd LVDS Channel Signal (D+)
Figure 4. Module Connector Diagram
#1
CN1 CN2
#51 #1 #41
#1 #51
#1 #41
[Rear view of LCM]
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Note :
1. All GND (Ground) pins should be connected together to the LCD module’s metal frame.
2. All V
3. All Input levels of LVDS signals are based on the EIA 664 Standard.
4. Always all LVDS signal and clock input should be 4 channels and synchronized.
5. Specific pins (CN1 pin No. 4~8, 27, 44) are used for internal process of the LCD module manufacturing. Leave these pins in condition that ‘No Connection’.
6. MST : MST option enable (Input), ‘L’ : Disable, ‘H’ : Enable
7. PWM_OUT : Reference signal (Output) for synchronizing Vsync and Burst frequency of inverter to avoid
8. ODC_EN : ODC enable (Input), ‘L’ : Disable, ‘H’ : Enable
9. FPS_DET : Frame rate detection (Input), ‘L’ : Under 50MHz, ‘H’: Over 50MHz.
(power input) pins should be connected together.
LCD
MST option : Left side image is applied to CN1, 1
Right side image is applied to CN2, 3
It should be tided up ‘L’ or ‘H’.
wavy noise, flickering, etc.
It should be tided up ‘L’ or ‘H’.
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Product Specification
st
& 2ndLVDS channel.
rd
& 4thLVDS channel.
LM270WF3
Liquid Crystal Display
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3-2-2. LED Interface
The LED interface connector is a model 10019HR-H06B manufactured by Yeonho. The pin configuration for the connector is shown in the table below.
Table 6. LED connector pin configuration
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LM270WF3
Liquid Crystal Display
Product Specification
NotesDescriptionSymbolPin
FIG. 5 Backlight connector view
Top view
Insert
6
1
Channel1 Current FeedbackFB11
Channel2 Current FeedbackFB22
Channel3 Current FeedbackFB35
Channel4 Current FeedbackFB46
Side view
FB1
FB2
LED Power SupplyVled3
LED Power SupplyVled4
FB3
FB4
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3-3. LVDS characteristics
3-3-1. DC Specification
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LM270WF3
Liquid Crystal Display
Product Specification
Description Symbol Min Max Unit Notes
LVDS Single end Voltage |V
LVDS Common mode Voltage V
LVDS Input Voltage Range V
Change in common mode Voltage ȟV
3-3-2. AC Specification
LVDS Clock
LVDS Data
( fCLK =1/tCLK )
LVDS 1’st Clock
nd
LVDS 2
/ 3rd/ 4thClock
tSKEW
tSKEW
ID|200600mV -
CM 1.1 1.4 V -
IN 0.8 1.6 V -
CM -250mV -
tCLK
tCLK
tSKEW_CLK tSKEW_CLK
Description Symbol Min Max Unit Notes
LVDS Clock to Data Skew Margin t
LVDS Clock to Clock Skew Margin t
SKEW
SKEW_CLK -1/7 + 1/7 tCLK -
-1/7tc*(n+0.25) 1/7tc*(n+0.25)
ps -
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3-3-3. LVDS data format (8bit, VESA)
1st LVDS Channel
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LM270WF3
Liquid Crystal Display
Product Specification
tCLK
tCLK*4/7
R1CLKP
R1CLKN
R1AP/N
R1BP/N
R1CP/N
R1DP/N
Previous (N-1)th cycle
2nd LVDS Channel
tCLK*4/7
CLK*3/7
t
R15 R14 R13 R12G10 R11R10’ R10R11’ G10”
B10 G15 G14 G13B11 G12G11’ G11G12’ B11”
V
SYNCHSYNC
B15 B14DE B13B12’ B12B13’ DE”
B17 B16 G17 G16X R17R16’ R16R17’ X”
Current (N)th cycle
tCLK
CLK*3/7
t
R17/G17/B17MSB
R16/G16/B16
R15/G15/B15
R14/G14/B14
R13/G13/B13
R12/G12/B12
R11/G11/B11
R10/G10/B10LSB
Next (N+1)th cycle
R2CLKP
R2CLKN
R2AP/N
R2BP/N
R2CP/N
R2DP/N
Previous (N-1)th cycle
R25 R24 R23 R22G20 R21R20’ R20R21’ G20”
B20 G25 G24 G23B21 G22G21’ G21G22’ B21”
V
SYNCHSYNC
B25 B24DE B23B22’ B22B23’ DE”
B27 B26 G27 G26X R27R26’ R26R27’ X”
Current (N)th cycle
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MSB
LSB
Next (N+1)th cycle
R27/G27/B27
R26/G26/B26
R25/G25/B25
R24/G24/B24
R23/G23/B23
R22/G22/B22
R21/G21/B21
R20/G20/B20
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3-3-3. LVDS data format (8bit, VESA)
3rd LVDS Channel
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LM270WF3
Liquid Crystal Display
Product Specification
tCLK
tCLK*4/7
R3CLKP
R3CLKN
R3AP/N
R3BP/N
R3CP/N
R3DP/N
Previous (N-1)th cycle
4th LVDS Channel
tCLK*4/7
CLK*3/7
t
R35 R34 R33 R32G30 R31R30’ R30R31’ G30”
B30 G35 G34 G33B31 G32G31’ G31G32’ B31”
V
SYNCHSYNC
B35 B34DE B33B32’ B32B33’ DE”
B37 B36 G37 G36X R37R36’ R36R37’ X”
Current (N)th cycle
tCLK
CLK*3/7
t
R37/G37/B37MSB
R36/G36/B36
R35/G35/B35
R34/G34/B34
R33/G33/B33
R32/G32/B32
R31/G31/B31
R30/G30/B30LSB
Next (N+1)th cycle
R4CLKP
R4CLKN
R4AP/N
R4BP/N
R4CP/N
R4DP/N
Previous (N-1)th cycle
R45 R44 R43 R42G40 R41R40’ R40R41’ G40”
B40 G45 G44 G43B41 G42G41’ G41G42’ B41”
V
SYNCHSYNC
B45 B44DE B43B42’ B42B43’ DE”
B47 B46 G47 G46X R47R46’ R46R47’ X”
Current (N)th cycle
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MSB
LSB
Next (N+1)th cycle
R47/G47/B47
R46/G46/B46
R45/G45/B45
R44/G44/B44
R43/G43/B43
R42/G42/B42
R41/G41/B41
R40/G40/B40
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Table 7. Required signal assignment for Flat Link(NS:DS90CF383) transmitter
Pin # Require SignalPin Name Pin # Require SignalPin Name
1 Power Supply for TTL InputVCC 29 Ground pin for TTLGND
2 TTL Input (R7)D5 30 TTL Input (DE)D26
3 TTL Input (R5)D6 31 TTL Level clock InputTXCLKIN
4 TTL Input (G0)D7 32 Power Down InputPWR DWN
5 Ground pin for TTLGND 33 Ground pin for PLLPLL GND
6 TTL Input (G1)D8 34 Power Supply for PLLPLL VCC
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LM270WF3
Liquid Crystal Display
Product Specification
7 TTL Input (G2)D9 35 Ground pin for PLLPLL GND
8 TTL Input (G6)D10 36 Ground pin for LVDSLVDS GND
9 Power Supply for TTL InputVCC 37 Positive LVDS differential data output 3TxOUT3ు
10 TTL Input (G7)D11 38 Negative LVDS differential data output 3TxOUT3ృ
11 TTL Input (G3)D12 39 Positive LVDS differential clock outputTXCLKOUTు
12 TTL Input (G4)D13 40 Negative LVDS differential clock outputTXCLKOUTృ
13 Ground pin for TTLGND 41 Positive LVDS differential data output 2TXOUT2ు
14 TTL Input (G5)D14 42 Negative LVDS differential data output 2TXOUT2ృ
15 TTL Input (B0)D15 43 Ground pin for LVDSLVDS GND
16 TTL Input (B6)D16 44 Power Supply for LVDSLVDS VCC
17 Power Supply for TTL InputVCC 45 Positive LVDS differential data output 1TXOUT1ు
46 Negative LVDS differential data output 1TXOUT1ృ18 TTL Input (B7)D17
19 TTL Input (B1)D18
20 TTL Input (B2)D19
22 TTL Input (B3)D20
23 TTL Input (B4)D21
47 Positive LVDS differential data output 0TXOUT0ు
48 Negative LVDS differential data output 0TXOUT0ృ
49 Ground pin for LVDSLVDS GND21 Ground pin for TTL InputGND
50 TTL Input (R6)D27
51 TTL Input (R0)D0
24 TTL Input (B5)D22
25 TTL Input (RSVD)D23
26 Power Supply for TTL InputVCC 54 TTL Input (R2)D2
52 TTL Input (R1)D1
53 Ground pin for TTLGND
55 TTL Input (R3)D327 TTL Input (HSYNC)D24
56 TTL Input (R4)D428 TTL Input (VSYNC)D25
Notes : Refer to LVDS Transmitter Data Sheet for detail descriptions.
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3-4. Signal Timing Specifications
This is signal timing required at the input of the Module connector. All of the interface signal timing should be
satisfied with the following specifications for it’s proper operation.
Table 8. Timing Table
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LM270WF3
Liquid Crystal Display
Product Specification
Unit
ns
MHz
t
CLK
kHz1926664f
t
HP
Hz1226050f
ns
ns
D
CLK
Horizontal
Vertical
DE (Data Enable)
Data
Parameter
Period
Frequency
Horizontal Valid
H Period Total
Hsync Frequency
Vertical Valid
V Period Total
Vsync Frequency
DE Setup Time
DE Hold Time
Data Setup Time
Data Hold Time
Symbol
t
CLK
f
CLK
t
HV
t
HP
H
t
VV
VP
V
SI
HI
t
SD
HD
Min
10.0
30
480
520
1080
4
Typ
27.8
36
480
544
1080
-
Max
33.3
100
480
560
1080
173311001090t
--4t
--4t
-
--4t
Note:
1. DE Only mode operation. The input of Hsync and Vsync signal does not effect on LCD normal operation.
2. The performance of the electro-optical characteristics may be influenced by variance of the vertical refresh rates.
3. Horizontal period should be even.
4. Timing parameter’s combination should be under D
specification.
CLK
Notes
GUI typ. : 144MHz@60Hz
For D
CLK
For D
CLK
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3-5. Signal Timing Waveforms
[ DCLK , DE, DATA waveforms]
t
CLK
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LM270WF3
Liquid Crystal Display
Product Specification
Dclk
Invalid
Data
DE(Data Enable)
[ Hsync, Vsync, DE waveforms ]
Hsync
t
WH
t
HBP
DE(Data Enable)
t
WV
Vsync
t
VBP
t
SD
t
HD
Valid
Invalid
t
SI
t
HP
t
HV
t
VP
t
VV
t
HI
t
HFP
t
VFP
DE(Data Enable)
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3-6. Color 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 9. Color Data Reference
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LM270WF3
Liquid Crystal Display
Product Specification
Input Color Data
Basic Color
RED
Color
Black 0 0 0 0 0 0 0 00 0 0 0 0 0 0 00 0 0 0 0 0 0 0
Red (255)
Green (255)
Blue (255)
Cyan
Magenta
Yellow
White
MSB LSB
RED
GREEN
MSB LSB
BLUE
MSB LSB
B7 B6 B5 B4 B3 B2 B1 B0G7 G6 G5 G4 G3 G2 G1 G0R7 R6 R5 R4 R3 R2 R1 R0
0 0 0 0 0 0 0 00 0 0 0 0 0 0 01 1 1 1 1 1 1 1
0 0 0 0 0 0 0 01 1 1 1 1 1 1 10 0 0 0 0 0 0 0
1 1 1 1 1 1 1 10 0 0 0 0 0 0 00 0 0 0 0 0 0 0
1 1 1 1 1 1 1 11 1 1 1 1 1 1 10 0 0 0 0 0 0 0
1 1 1 1 1 1 1 10 0 0 0 0 0 0 01 1 1 1 1 1 1 1
0 0 0 0 0 0 0 01 1 1 1 1 1 1 11 1 1 1 1 1 1 1
1 1 1 1 1 1 1 11 1 1 1 1 1 1 11 1 1 1 1 1 1 1
0 0 0 0 0 0 0 00 0 0 0 0 0 0 00 0 0 0 0 0 0 0RED (000) Dark
0 0 0 0 0 0 0 00 0 0 0 0 0 0 00 0 0 0 0 0 0 1RED (001)
............
0 0 0 0 0 0 0 00 0 0 0 0 0 0 01 1 1 1 1 1 1 0RED (254)
0 0 0 0 0 0 0 00 0 0 0 0 0 0 01 1 1 1 1 1 1 1RED (255)
0 0 0 0 0 0 0 00 0 0 0 0 0 0 00 0 0 0 0 0 0 0GREEN (000) Dark
0 0 0 0 0 0 0 00 0 0 0 0 0 0 10 0 0 0 0 0 0 0GREEN (001)
GREEN
0 0 0 0 0 0 0 01 1 1 1 1 1 1 00 0 0 0 0 0 0 0GREEN (254)
0 0 0 0 0 0 0 01 1 1 1 1 1 1 10 0 0 0 0 0 0 0GREEN (255)
BLUE (000) Dark
BLUE
0 0 0 0 0 0 0 00 0 0 0 0 0 0 00 0 0 0 0 0 0 0
0 0 0 0 0 0 0 10 0 0 0 0 0 0 00 0 0 0 0 0 0 0BLUE (001)
1 1 1 1 1 1 1 00 0 0 0 0 0 0 00 0 0 0 0 0 0 0BLUE (254)
1 1 1 1 1 1 1 10 0 0 0 0 0 0 00 0 0 0 0 0 0 0BLUE (255)
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3-7. Power Sequence
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LM270WF3
Liquid Crystal Display
Product Specification
90% 90%
Power Supply for LCD
V
LCD
0V
Interface Signal
V
I
Option signal
(ODC_EN ,FPS_DET, MST)
Power Supply for LED
Table 10. Power Sequence
Parameter
10%
T1
T2 T5 T7
Valid data
T8
T3
T9
T4
LED on
LED OFF
Values
10%
LED OFF
Units
MaxTypMin
ms10-0.5T1
Notes :
1. Please avoid floating state of interface signal at invalid period.
2. When the interface signal is invalid, be sure to pull down the power supply V
3. LED power must be turn on after power supply V
LCD and interface signal are valid.
Ver. 0.5 Aug., 18. 2010
--200T4
LCD to 0V.
ms50-0.01T2
ms--500T3
ms
ms50-0.01T5
ms-500T7
ms0 < T8 < T2T8
ms0 < T9 < T5T9
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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 T equal to 0 and aperture 1 degree.
Figure. 6 presents additional information concerning the measurement equipment and method.
Figure. 6 Optical Characteristic Measurement Equipment and Method
Optical Stage(x,y)
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Product Specification
LCD Module
LM270WF3
Liquid Crystal Display
Pritchard 880 or
equivalent
Table 11. Optical Characteristics
Surface Luminance, white Luminance Variation
Rise Time
Response Time
Color Coordinates [CIE1931]
(By PR650)
Viewing Angle (CR>10)
x axis, right(I=0¶) x axis, left (I=180¶) y axis, up (I=90¶) y axis, down (I=270¶)
Decay Time
Gray to Gray
RED
GREEN
BLUE
WHITE
SymbolParameter
G
WHITE
WHITE
R
D
GTG
Rx
Tr
Tl Tu Td
50cm
(Ta=25 C, V
Typ
-0.03
- 8%1.5-Crosstalk
=12.0V, fV=60Hz D
LCD
Values
0.642
0.335Ry
0.291Gx
0.636Gy
0.153Bx
0.049By
0.313Wx
0.329Wy
MaxTypMin
-1,000700CRContrast Ratio
-400320L
Typ
+0.03
-8570
-7560
-8570
=144MHz, IBL=110mA)
CLK
NotesUnits
2
1 2cd/m 3%--75 4ms41-Tr 4ms84-Tr 5ms63-T
6Degree-8570
7-2.2-Gray Scale
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Notes :
1. Contrast ratio (CR) is defined mathematically as :
It is measured at center point (1)
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LM270WF3
Liquid Crystal Display
Product Specification
Contrast ratio = ---------------------------------------------------------
Surface luminance with all white pixels
Surface luminance with all black pixels
2. Surface luminance is the luminance value at center 1 point (1) across the LCD surface 50cm from the surface with all pixels displaying white. For more information see Figure 7.
3. The variation in surface luminance , G
is defined as :
WHITE
Minimum (P1,P2 …..P9)
G
= --------------------------------------------- x 100 (%)
WHITE
Maximum (P1,P2 …..P9)
For more information see Figure 7.
Figure 7. Luminance measuring point
H
H
H/2
V/2
V
V/10
56
7
3
1
8
H/10
42
9
H/2
@ H,V : Active Area
<Measuring point for luminance variation> <Measuring point for surface luminance>
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V/2
V
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4. The response time is defined as the following figure and shall be measured by switching the input signal for “black” and “white”. Response time is the time required for the display to transition from white to black (Rise Time, T
and from black to white (Decay Time, TrD).
Figure 8. Response Time
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LM270WF3
Liquid Crystal Display
Product Specification
rR)
Tr
R
Tr
D
100%
90%
Optical
white black white
response
10%
0%
5. The gray to gray response time is defined as the following table and shall be measured by switching the input signal for “Gray To Gray”.
- Gray step : 5 step
GTG (Typ) is the typical specification of total average time at rising time and falling time for ‘Gray to Gray’.
-T
GTG (Max) is the maximum specification of total average time at rising time and falling time for ‘Gray to
-T Gray’.
Table 12. Gray to Gray Response time Table
Gray to Gray
Rising Time
G0G63G127G191G255
G255
G191
Falling Time
G127
G63
G0
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 Figure 9 .
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Figure 9. Viewing Angle
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LM270WF3
Liquid Crystal Display
Product Specification
I
= 180q, Left
I
= 270q, Down
7. Gray scale specification Gamma Value is approximately 2.2.
8. Crosstalk is defined as :
The equation of crosstalk : (~L
Normal
E
Y
I
= 90q, Up
T
I
I
= 0q, Right
<Dimension of viewing angle range>
A[or C]2-LA[or C]1
(~L
B[or D]2-LB[or D]1
~/L
~/L
) u100(%) [Vertical],
A[or C]1
) u100(%) [Horizontal]
B[or D]1
Figure 10. Crosstalk
A/2
L
A1
A/8
B/8
B
L
B1
L
D1
B/2
L
C1
A
Pattern 1
(Half gray: gray 127)
(Background: gray 127, Rectangular: gray 0, gray255 )
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A/4 A/2 A/4
L
A2
L
B2
L
C2
Pattern 2
B/4
B/2
L
D2
B/4
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5. Mechanical Characteristics
The contents provide general mechanical characteristics. In addition the figures in the next page are detailed mechanical drawing of the LCD.
Table 13. Mechanical characteristics
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LM270WF3
Liquid Crystal Display
Product Specification
630 mmHorizontal
Outline Dimension
Bezel Area
Active Display Area
Typ. : 3062 g , Max : 3521 gWeight
Surface Treatment
Notes : Please refer to a mechanic drawing in terms of tolerance at the next page.
Hard coating (3H) Anti-glare treatment of the front polarizer
368.2 mmVertical
17.8 mmDepth
602 mmHorizontal
340.4 mmVertical
597.89mmHorizontal
336.31mmVertical
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<FRONT VIEW>
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LM270WF3
Liquid Crystal Display
Product Specification
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<REAR VIEW>
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LM270WF3
Liquid Crystal Display
Product Specification
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6. Reliability
Table 14. Environment test conditions
No Test Item Condition
5
Vibration test (non-operating)
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LM270WF3
Liquid Crystal Display
Product Specification
Ta= 60C 240hrsHigh temperature storage test1
Ta= -20C 240hrsLow temperature storage test2
Ta= 50¶C 50%RH 240hrsHigh temperature operation test3
Ta= 0C 240hrsLow temperature operation test4
Wave form : random Vibration level : 1.0GRMS Bandwidth : 10-300Hz Duration : X,Y,Z, 20 min
One time each direction
Shock level : 120G
6
7
[ Result evaluation criteria ] There should be no change which might affect the practical display function when the display quality test is
conducted under normal operating condition.
Shock test (non-operating)
Altitude
storage / shipment
Waveform : half sine wave, 2msec Direction : ᇹX, ᇹY, ᇹZ
One time each direction
0 - 40,000 feet(12,192m)
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7. International Standards
7-1. Safety
a) UL 60950-1, Second Edition, Underwriters Laboratories Inc.
Information Technology Equipment - Safety - Part 1 : General Requirements.
b) CAN/CSA C22.2 No.60950-1-07, Second Edition, Canadian Standards Association.
Information Technology Equipment - Safety - Part 1 : General Requirements.
c) EN 60950-1:2006 + A11:2009, European Committee for Electrotechnical Standardization(CENELEC).
Information Technology Equipment - Safety - Part 1 : General Requirements.
d) IEC 60950-1:2005, Second Edition, 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
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LM270WF3
Liquid Crystal Display
Product Specification
Class 1M LED Product
IEC60825-1 : 2001
Embedded LED Power (Class 1M)
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
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8. Packing
8-1. Designation of Lot Mark
a) Lot Mark
ABCDEF GHI JKLM
A,B,C : SIZE(INCH) D : YEAR E : MONTH F ~ M : SERIAL NO.
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LM270WF3
Liquid Crystal Display
Product Specification
Note
1. YEAR
Year
Mark
321
200452005
4
200320022001
2006720078200892009
6
2. MONTH
Month
Mark
Apr5May
4
Jun7Jul8Aug9Sep
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 pcs
b) Box Size : 710 x 365 x 450 mm
2010
0
Oct
A
Nov
B
DecMarFebJan
C321
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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.
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LM270WF3
Liquid Crystal Display
Product Specification
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.
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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.
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LM270WF3
Liquid Crystal Display
Product Specification
(1) Store them in a dark place. Do not expose the module to sunlight or fluorescent light. Keep the temperature
between 5C and 35C 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 ion­blown 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 normal­hexane.
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