Page 1
( ● ) Preliminary Specification
( ) Final Specification
LM270WF1
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
27” Full HD TFT LCDTitle
BUYER
MODEL
www.jxlcd.com
www.jxlcd.com
APPROVED BY
/
/
/
General
SIGNATURE
DATE
SUPPLIER LG. Display Co., Ltd.
*MODEL LM270WF1
SUFFIX TLA1
*When you obtain standard approval,
please use the above model name without suffix
APPROVED BY
H.S. Kim / G.Manager
REVIEWED BY
D.I. Chung / Manager
PREPARED BY
K.H. Lee / Engineer
SIGNATURE
DATE
Please return 1 copy for your confirmation with
your signature and comments.
Ver 0.0 July. 2. 2008
MNT Products Engineering Dept.
LG. Display LCD Co., Ltd
1/ 31
Page 2
LM270WF1
5
MECHANICAL CHARACTERISTICS
23
8
PACKING
28
Liquid Crystal Display
Product Specification
Contents
No ITEM Page
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
www.jxlcd.com
4 OPTICAL SFECIFICATIONS
6 RELIABLITY
www.jxlcd.com
1
2
3
4
5
6
6
8
12
13
14
15
17
26
7 INTERNATIONAL STANDARDS
7-1 SAFETY
7-2 EMC
8-1 DESIGNATION OF LOT MARK
8-2 PACKING FORM
9 PRECAUTIONS 29
Ver 0.0 July. 2. 2008
27
27
27
28
28
2/ 31
Page 3
Product Specification
RECORD OF REVISIONS
LM270WF1
Liquid Crystal Display
Revision
No
0.0 July. 2. 2008 - First Draft(Preliminary)
Revision Date Page Description
www.jxlcd.com
www.jxlcd.com
Ver 0.0 July. 2. 2008
3/ 31
Page 4
LM270WF1
qy py g
applications where thin thickness, wide viewing angle, low power are critical factors and graphic displays are
e
e
Back light Assembly
Power Consumption
Total
95
Watt (Typ.) (
Watt
@V
LCD
Watt
@400cd/
㎡
])
Liquid Crystal Display
Product Specification
1. General Description
LM270WF1 is a Color Active Matrix Liquid Crystal Display with an integral Cold Cathode Fluorescent
Lamp(CCFL) backlight system without inverter. 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 27 inch diagonally
measured active display area with Full HD 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
important. 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)
V
(12.0V)
LCD
www.jxlcd.com
www.jxlcd.com
V
LAMP
CN1
(30pin)
CN 2
2pin x 8CNs (High)
Timing Control
Block
Gat
Driver circuit
Power Circuit Block
G1080
(Direct Light Type_ U shape 7 CCFL)
Figure 1. Block diagram
Source Driver Circuit
G1
TFT-LCD Panel
(1920 × 1080 pixels)
General Features
Active Screen Size 27 inches(68.6cm) diagonal
Outline Dimension 630(H) x 368.2(V) x 37.2(D) mm(Typ.) *Without Inverter
Pixel Pitch 0.3114 mm x 0.3114 mm
Pixel Format 1920 horiz. By 1080 vert. Pixels RGB stripes arrangement
S1920S1
Color Depth 8-bit with A-FRC, 16,777,216 colors
Luminance, White 400 cd/m
Viewing Angle(CR>10) View Angle Free (R/L 170(Typ.), U/D 160(Typ.))
Weight 4220 g (typ.)
Display Operating Mode Transmissive mode, normally White
Surface Treatment
Ver 0.0 July. 2. 2008
Hard coating(3H) & Anti-Glare treatment of the front polarizer
2
(Center 1 point)
88.
5.35
, 83.6
4/ 31
Page 5
Product Specification
The following
Wet bulb temperature should be 39
Max, and no condensation of water
R
2. Absolute Maximum Ratings
are maximum values which, if exceeded, may cause faulty operation or damage to the unit.
Table 1. ABSOLUTE MAXIMUM RATINGS
LM270WF1
Liquid Crystal Display
Parameter Symbol
Power Input Voltage
Operating Temperature
Storage Temperature
Operating Ambient Humidity
Storage Humidity
Note : 1. Temperature and relative humidity range are shown in the figure below.
www.jxlcd.com
www.jxlcd.com
Wet Bulb
Temperature [C]
20
10
0
VLCD -0.3 12.4 Vdc at 25 ± 2°C
TOP 050
TST -20 60
HOP 10 90 %RH
HST 10 90 %RH
C
50
40
30
Values
Units Notes
Min Max
°C
°C
°
90%
60
60%
H]
40%
Humidity [(%)
10%
1
.
Storage
Operation
Ver 0.0 July. 2. 2008
10 20 30 40 50 60 70 800-20
Dry Bulb Temperature [C]
Figure 2. Temperature and relative humidity
5/ 31
Page 6
LM270WF1
3-1. El
445
468
Liquid Crystal Display
Product Specification
3. Electrical Specifications
ectrical 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 CCFL, is typically generated by an inverter. The inverter is an
external unit to the LCDs.
Table 2-1. ELECTRICAL CHARACTERISTICS
Parameter Symbol Unit Notes
MODULE :
Power Supply Input Voltage V
Permissive Power Input Ripple V
Differential Impedance
Power Supply Input Current ILCD
Power Consumption
Rush current I
Note :
1. Permissive power ripple should be measured under VCC=12.0V, 25°C, fV(frame frequency)=MAX
condition and At that time, we recommend the bandwidth configuration of oscilloscope is to be under
20Mhz. See the next page.
www.jxlcd.com
www.jxlcd.com
LCD
dRF 400 mVp-p 1
Zm 90 100 110 Ohm
Pc TYP -
Pc MAX -
RUSH --3.0A4
Min Typ Max
11.6 12.0 12.4
-
-
Values
559 592
5.35 5.62
6.71 7.10
Vdc
mA 2
mA 3
Watt 2
Watt 3
2. The specified current and power consumption are under the V
whereas Mosaic and max power pattern 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 2ms and rising time of Input Voltage is 1ms(min.).
At any rising time of Input voltage, Keep the I2T Value by below Condition
Condition : I2T < 32*2ms
Ver 0.0 July. 2. 2008
=12.0V, 25 ± 2°C,fV=60Hz condition
LCD
6/ 31
Page 7
Liquid Crystal Display
g
ppp
Product Specification
• Permissive Power input ripple (VCC=5.0V, 25°C, fV(frame frequency)=MAX condition)
LM270WF1
White pattern
• Power consumption (VCC=5.0V, 25°C, fV (frame frequency=60Hz condition)
www.jxlcd.com
www.jxlcd.com
Typical power Pattern
Figure 3. Mosaic pattern & Black Pattern for power consumption measurement
Black pattern
Max power Pattern
Ver 0.0 July. 2. 2008
7/ 31
Page 8
Product Specification
Otherwise, the lamps may not be turned on
The used lamp current is the lamp typical current
diti
±
2°C
Table 2_2. ELECTRICAL CHARACTERISTICS
LM270WF1
Liquid Crystal Display
Parameter Symbol
LAMP :
Operating Voltage VBL 1900(7.0mA) 1990(6.0mA) 2250(3.0mA) V
Operating Current I
Established Starting Voltage Vs 1, 3
at 25 °C
at 0 °C
Operating Frequency
Discharge Stabilization Time
Power Consumption
Life Time
Note : The design of the inverter must have specifications for the lamp in LCD Assembly.
The performance of the Lamp in LCM, for example life time or brightness, is extremely influenced by
the characteristics of the DC-AC inverter. So all the parameters of an inverter should be carefully
designed so as not to produce too much leakage current from high-voltage output of the inverter.
When you design or order the inverter, please make sure unwanted lighting caused by the mismatch
of the lamp and the inverter (no lighting, flicker, etc) never occurs. When you confirm it, the LCD–
Assembly should be operated in the same condition as installed in you instrument.
※ Do not attach a conducting tape to lamp connecting wire.
If the lamp wire attach to a conducting tape, TFT-LCD Module has a low luminance and the inverter
has abnormal action. Because leakage current is occurred between lamp wire and conducting tape.
www.jxlcd.com
www.jxlcd.com
BL 3.0 6.0 7.0 mA
fBL 40 - 80 kHz 4
Ts 3.0 Min 1, 5
PBL 47.3 83.6 93.1 Watt 6
Min Typ Max
- - 3000 V
- - 3600 V
40,000 Hrs 1, 7
Values
Unit Notes
RMS
RMS
RMS
RMS
1, 2
1
1. Specified values are for a single lamp.
2. Operating voltage is measured at 25 ± 2°C. The variance of the voltage is ± 10%.
3. The voltage above V
(Inverter open voltage must be more than lamp starting voltage.)
4. Lamp frequency may produce interface with horizontal synchronous frequency and as a result this may
cause beat on the display. Therefore lamp frequency shall be as away possible from the horizontal
synchronous frequency and from its harmonics in order to prevent interference.
5. Let’s define the brightness of the lamp after being lighted for 5 minutes as 100%.
T
is the time required for the brightness of the center of the lamp to be not less than 95%.
S
6. The lamp power consumption shown above does not include loss of external inverter.
The used lamp current is the lamp typical current. (P
7. The life is determined as the time at which brightness of the lamp is 50% compared to that of initial
value at the typical lamp current on con
Ver 0.0 July. 2. 2008
should be applied to the lamps for more than 1 second for start-up.
S
.
= VBLx IBLx N
BL
on of continuous operating at 25
Lamp
)
.
.
8/ 31
Page 9
LM270WF1
symmetrical current waveform (Unsymmetrical ratio is less than 10%). Please do not use the inverter
Liquid Crystal Display
Product Specification
8. The output of the inverter must have symmetrical(negative and positive) voltage waveform and
which has unsymmetrical voltage and unsymmetrical current and spike wave.
Requirements for a system inverter design, which is intended to have a better display performance, a
better power efficiency and a more reliable lamp, are following.
It shall help increase the lamp lifetime and reduce leakage current.
a. The asymmetry rate of the inverter waveform should be less than 10%.
b. The distortion rate of the waveform should be within √2 ±10%.
* Inverter output waveform had better be more similar to ideal sine wave.
* Asymmetry rate:
I p
|I
p–I–p
|/I
rms
x 100%
I -p
9. The inverter which is combined with this LCM, is highly recommended to connect coupling(ballast)
condenser at the high voltage output side. When you use the inverter which has not coupling(ballast)
condenser, it may cause abnormal lamp lighting because of biased mercury as time goes.
10.In case of edgy type back light with over 4 parallel lamps, input current and voltage wave form should
be synchronized
www.jxlcd.com
www.jxlcd.com
* Distortion rate
I
(or I–p)/I
p
rms
Ver 0.0 July. 2. 2008
9/ 31
Page 10
LM270WF1
()
15
SR1M
Minus signal of even channel 1 (LVDS)
30
V
LCD
Power Supply +12.0V
Liquid Crystal Display
Product Specification
3-2. Interface Connections
This LCD employs Two interface connections, a 30 pin connector is used for the module electronics and a
14Pin Connector is used for the integral backlight system.
3-2-1. LCD Module
- LCD Connector(CN1): KDF71G-30S-1H, (Manufactured by Hirose )
- Mating Connector : FI-X30C2L (Manufactured by JAE) or Equivalent
Table 3 MODULE CONNECTOR(CN1) PIN CONFIGURATION
No Symbol Description No Symbol Symbol
1
2
3
4
5
6
7
8
9
10
11
12
13
14
FR0M
FR0P
FR1M
FR1P
FR2M
FR2P
GND
FCLKINM
www.jxlcd.com
FCLKINP
FR3M
FR3P
SR0M
SR0P
GND
Minus signal of odd channel 0 (LVDS)
Plus signal of odd channel 0 (LVDS)
Minus signal of odd channel 1 (LVDS)
Plus signal of odd channel 1 (LVDS)
Minus signal of odd channel 2 (LVDS)
Plus signal of odd channel 2 (LVDS)
Ground
Minus signal of odd clock channel (LVDS)
www.jxlcd.com
Plus signal of odd clock channel (LVDS)
Minus signal of odd channel 3 (LVDS)
Plus signal of odd channel 3 (LVDS)
Minus signal of even channel 0 (LVDS)
Plus signal of even channel 0 (LVDS)
Ground
16
SR1P
17
GND
18
SR2M
19
SR2P
20
SCLKINM
21
SCLKINP
22
SR3M
23
SR3P
24
GND
25
NC
26
NC
27 DCR_OUT
28
ODC
29
VLCD
Plus signal of even channel 1 (LVDS)
Ground
Minus signal of even channel 2 (LVDS)
Plus signal of even channel 2 (LVDS)
Minus signal of even clock channel (LVDS)
Plus signal of even clock channel (LVDS)
Minus signal of even channel 3 (LVDS)
Plus signal of even channel 3 (LVDS)
Ground
No Connection
No Connection
Dynamic C/R output
ODC Control (GND:DCR on, 3.3V:DCR off)
Power Supply +12.0V
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 V
LCD (power input) pins should be connected together.
3. Input Level of LVDS signal is based on the IEA 664 Standard.
Rear view of LCM
#1 #30
KDF71G-30S-1H
Ver 0.0 July. 2. 2008
#1 #30
[ Figure 4 ] Connector diagram
10 / 31
Page 11
Liquid Crystal Display
16
TTL Input (B6)
D1644Power Supply for LVDS
LVDS V
CC
Product Specification
Table 4. REQUIRED SIGNAL ASSIGNMENT FOR Flat Link (TI:SN75LVDS83) 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
7 TTL Input (G2)D9 35 Ground pin for PLLPLL GND
8 TTL Input (G6)D10 36 Ground pin for LVDSLVDS GND
LM270WF1
9 Power Supply for TTL InputVCC 37 Positive LVDS differential data output 3
10 TTL Input (G7)D11 38 Negative LVDS differential data output 3
11 TTL Input (G3)D12 39 Positive LVDS differential clock output
12 TTL Input (G4)D13 40 Negative LVDS differential clock output
13 Ground pin for TTLGND 41 Positive LVDS differential data output 2
14 TTL Input (G5)D14 42 Negative LVDS differential data output 2
15 TTL Input (B0)D15 43 Ground pin for LVDSLVDS GND
17 Power Supply for TTL InputVCC 45 Positive LVDS differential data output 1
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
www.jxlcd.com
www.jxlcd.com
46 Negative LVDS differential data output 1
47 Positive LVDS differential data output 0
48 Negative LVDS differential data output 0
49 Ground pin for LVDSLVDS GND21 Ground pin for TTL InputGND
50 TTL Input (R6)D27
51 TTL Input (R0)D0
52 TTL Input (R1)D1
53 Ground pin for TTLGND
TxOUT3＋
TxOUT3－
TXCLKOUT＋
TXCLKOUT－
TXOUT2＋
TXOUT2－
TXOUT1＋
TXOUT1－
TXOUT0＋
TXOUT0－
26 Power Supply for TTL InputVCC 54 TTL Input (R2)D2
Notes : Refer to LVDS Transmitter Data Sheet for detail descriptions.
Ver 0.0 July. 2. 2008
55 TTL Input (R3)D327 TTL Input (HSYNC)D24
56 TTL Input (R4)D428 TTL Input (VSYNC)D25
11 / 31
Page 12
LVDS Input characteristics
Maximum deviation
1. DC Specification
LM270WF1
Liquid Crystal Display
Product Specification
Description Symbol Min Max Unit Notes
LVDS Differential Voltage |V
LVDS Common mode Voltage V
LVDS Input Voltage Range V
www.jxlcd.com
2. AC Specification
LVDS Clock to Data Skew Margin
LVDS Clock to Clock Skew Margin (Even to Odd) t
www.jxlcd.com
Description Symbol Min Max Unit Notes
| 100 600 mV -
ID
CM
IN
t
SKEW
t
SKEW
SKEW_EO
0.6 1.8 V -
0.3 2.1 V -
- 400 + 400 ps 85MHz > Fclk ≥ 65MHz
- 600 + 600 ps 65MHz > Fclk ≥ 25MHz
-1/7 + 1/7 T
clk
-
F
of input clock frequency during SSC
Maximum modulation frequency
of input clock during SSC
Ver 0.0 July. 2. 2008
DEV
F
MOD
-
- 200 KHz -
± 3
%-
12 / 31
Page 13
Freq.
F
)
F
max
F
center
Product Specification
< Clock skew margin between channel >
LM270WF1
Liquid Crystal Display
F
* F
center
DEV
min
www.jxlcd.com
3. Data Format
1) LVDS 2 Port
www.jxlcd.com
1
F
MOD
< Spread Spectrum >
Time
< LVDS Data Format >
Ver 0.0 July. 2. 2008
13 / 31
Page 14
2) LVDS 1 Port
RCLK+
LM270WF1
Liquid Crystal Display
Product Specification
RA+/-
RB+/-
RC+/-
RD+/-
R3 R2
G4 G3
B5 B4
G7 G6
Previous (N-1)th Cycle Next(N+1)th Cycle
www.jxlcd.com
www.jxlcd.com
R1 R0
G2 G1
B3 B2
R7 R6
G0 R5 R4 R3 R2 R1 R0
B1 B0 G5 G4 G3 G2 G1
DE VSYNC HSYNC B5 B4 B3 B2
X B7 B6 G7 G6 R7 R6
Current (Nth) Cycle
G0
R5 R4
B1
B0 G5
DE
VSYNC HSYNC
X
B7 B6
Ver 0.0 July. 2. 2008
14 / 31
Page 15
LM270WF1
)
()
y
p
N
N
C
C
Liquid Crystal Display
Product Specification
Table 5. BACKLIGHT CONNECTOR PIN CONFIGURATION(CN1,CN2,CN3,CN4,CN5,CN6, CN7
The backlight lamp connector is a model 1006-12102 (CN1/CN2/CN3/CN4/CN5/CN6/CN7) manufactured by C-NET.
The mating connector part number are 1006-66202 (manufactured by C-NET) or equivalent. The pin configuration for
the connector is shown in the table below.
Pin Symbol Description NOTES
1,2 HV High Voltage for Lamp 1
Note : 1. The high voltage power terminal is colored Red/White
<BACKLIGHT CONNECTOR DIAGRAM>
U-LAMP
www.jxlcd.com
www.jxlcd.com
CN1 CN2
CN3
C
4
CN5
CN6
N7
Ver 0.0 July. 2. 2008
15 / 31
Page 16
LM270WF1
od
tCLK
eod
tC
11.76
13.89
15.38
ns
H
F
fH
646683
KH
2
Vsync and Hsync should be keep the above specification
Liquid Crystal Display
Product Specification
3-3. Signal Timing Specifications
This is signal timing required at the input of the TMDS transmitter. All of the interface signal timing should be
satisfied with the following specifications for it’s proper operation.
Table 5. TIMING TABLE
ITEM Symbol Min Typ Max Unit Note
Peri
DCLK
Frequency -
65 72 82.5 MHz
sync
Vsync
Period tHP
Horizontal Valid tHV
Horizontal Blank tHB
requency
Width tWH
Horizontal Back Porch tHBP
Horizontal Front Porch tHFP
www.jxlcd.com
www.jxlcd.com
Period tVP
Vertical Valid tVV
Vertical Blank tVB
Frequency fV
Width tWV
Vertical Back Porch tVBP
Vertical Front Porch tVFP
1008 1088 1120 tCLK
960 960 960 tCLK
48 128 160
z
8 32 48 tCLK
24 48 64
16 48 48
1090 1100 1160 tHP
1080 1080 1080 tHP
10 20 80 tHP
50 60 75 Hz
2 416tHP
5 832
3 832
Note: Hsync period and Hsync width-active should be even number times of tCLK. If the value is odd number
times of t
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
.
3. Hsy nc Period, Hsync Width, and Horizontal Back Porch should be any times of of character
4. The polarity of Hsync, Vsync is not restricted.
Ver 0.0 July. 2. 2008
CLK, display control signal can be asynchronous. In order to operate this LCM a Hsync,
refresh rates.
number(8).
.
16 / 31
Page 17
3-4. Signal Timing Waveforms
INVALID
t
VP
LM270WF1
Liquid Crystal Display
Product Specification
Hsync, Vsync, DE, DATA
t
CLK
Dclk
INVALID
DATA
DE(Data Enable)
www.jxlcd.com
www.jxlcd.com
Hsync
t
WH
0.5VDD
0.7VDD
0.3VDD
VALID
Data are latched at the falling edge of DCLK
t
HP
t
HBP
DE(Data Enable)
t
WV
Vsync
t
VBP
DE(Data Enable)
Ver 0.0 July. 2. 2008
t
HV
t
VV
t
HFP
t
VFP
17 / 31
Page 18
LM270WF1
Color
a
RED (001)
00000001000000000000000
0
Liquid Crystal Display
Product Specification
3-5. 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 6. COLOR DATA REFERENCE
Input Color Data
RED GREEN BLUE
MSB LSB MSB LSB MSB LSB
R7 R6 R5 R4 R3 R2 R1 R0 G7 G6 G5 G4 G3 G2 G1 G0 B7 B 6 B5 B 4 B3 B2 B 1 B0
Black 000000000000000000000000
Red (255) 111111110000000000000000
Green (255) 000000001111111100000000
Basic
Color
RED
GREEN
Blue (255) 000000000000000011111111
Cyan 000000001111111111111111
Magenta 111111110000000011111111
Yellow 111111111111111100000000
White 111111111111111111111111
www.jxlcd.com
RED (000) Dark 000000000000000000000000
www.jxlcd.com
... ... ... ...
RED (254) 111111100000000000000000
RED (255) 111111110000000000000000
GREEN (000) Dark 000000000000000000000000
GREEN (001) 000000000000000100000000
... ... ... ...
GREEN (254) 000000001111111000000000
GREEN (255) 000000001111111100000000
BLUE (000) Dark 000000000000000000000000
BLUE (001) 000000000000000000000001
BLUE
BLUE (254) 000000000000000011111110
BLUE (255) 000000000000000011111111
Ver 0.0 July. 2. 2008
... ... ... ...
18 / 31
Page 19
3-6. Power Sequence
0V
(ODC)
T
Table 7
POWER SEQUENCE
LM270WF1
Liquid Crystal Display
Product Specification
90% 90%
Power supply for LCD
Vcc
Interface signal
V
I
Option siganl
Power for LAMP
www.jxlcd.com
www.jxlcd.com
.
Parameter
T1 0.5 - 10 ms
10%
T1
T2 T5 T7
Valid data
T8
T3
Lamp on
OFF
Values
Min Typ Max
T4
10%
T9
OFF
Units
T2 0.01 - 50 ms
3 500 --ms
T4 200 - - ms
T5 0.01 - 50 ms
T7 500 - ms
T8 0 < T8 < T2 ms
T9 0 < T9 < T5 ms
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 for LCD V
3. Lamp power must be turn on after power supply for LCD and interface signal are valid.
Ver 0.0 July. 2. 2008
to 0V.
LCD
19 / 31
Page 20
4. Optical Specifications
Optical ch
‘ON’ f
Table 9
OPTICAL CHARACTERISTICS
(Ta=25
°
C, V
f
60Hz Dclk=144MH
IBL
A)
T
R
T
T
Gy0.668
LM270WF1
Liquid Crystal Display
Product Specification
aracteristics are determined after the unit has been
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 Φ and θ equal to 0 ° and aperture 1 degree.
FIG. 1 presents additional information concerning the measurement equipment and method.
Optical Stage(x,y)
FIG. 6 Optical Characteristic Measurement Equipment and Method
.
Parameter Symbol
Contrast Ratio CR 700 1000 1
Surface Luminance, white L
Luminance Variation
Response Time
Color Coordinates
[CIE1931]
Viewing Angle (CR>10)
Gray Scale 2.2 7
www.jxlcd.com
www.jxlcd.com
Rise Time
Decay Time Tr
Gray to Gray
RED Rx
GREEN Gx 0.207
BLUE Bx 0.144
WHITE Wx 0.313
x axis, right(φ=0°)
x axis, left (φ=180°)
y axis, up (φ=90°)
y axis, down (φ=270°)
LCD Module
50cm
Min Typ Max
WH
δ
WHITE
r
D
T
GTG_AVR
T
GTG_MAX
Ry 0.318
By 0.068
Wy 0.329
θr
θl
θu
θd
320 400 cd/m
75 % 3
-14ms4
-48ms4
- 2-ms 5
- -6ms 5
yp
-0.03
70 85 Degree 6
70 85
60 75
70 85
or approximately 30 minutes
Pritchard 880 or
equivalent
=12.0V,
LCD
Values
0.661
=
V
+0.03
yp
z,
=6m
Units Notes
2
2
Ver 0.0 July. 2. 2008
20 / 31
Page 21
Product Specification
…
H
V
Active Area
A : H/4 mm
Notes 1. Contrast Ratio(CR) is defined mathematically as :
LM270WF1
Liquid Crystal Display
Contrast Ratio =
2. Surface luminance is luminance value at No.1 point across the LCD surface 50cm
from the surface with all pixels displaying white. For more information see FIG 6.
3. The variation in surface luminance , δ WHITE is defined as :
δ
WHITE
Measuring point for surface luminance & measuring point for luminance variation
www.jxlcd.com
www.jxlcd.com
B
Surface Luminance with all white pixels
Surface Luminance with all black pixels
)L .. ,L,Minimum(L
on9on2on1
=
A
23
×
)L .... ,L ,(L Maximum
on9on2on1
(%)100
4
H/10
5
78
V/10
B : V/4 mm
@ H,V : Active Area
[ FIGURE 7 ] Measure Point for Luminance
Ver 0.0 July. 2. 2008
1
6
9
21 / 31
Page 22
Liquid Crystal Display
the i
“black”
hite”
[ FIGURE 8] Response Time
the input signal for Gray To Gray
Product Specification
4. The response time is defined as the following figure and shall be measured by switching
nput signal for
Response time is the time required for the display to transition from white to black (Rise Time,
T
rR) and from black to white (Decay Time, TrD).
and “w
.
LM270WF1
%
100
90
Optical
response
10
www.jxlcd.com
5, The gray to gray response time is defined as the following figure and shall be measured by switching
www.jxlcd.com
“
- Gray step : 5 step
-T
GTG_AVR is the total average time at rising time and falling time for “Gray To Gray”.
-T
GTG_MAX is the max time at rising time or falling time for “Gray To Gray”.
white black white
0
Tr
R
”
.
Tr
D
Table 10. Gray to gray response time table
Gray to Gray
Falling Time
Ver 0.0 July. 2. 2008
Rising Time
G255 G191 G127 G63 G0
G255
G191
G127
G63
G0
22 / 31
Page 23
Liquid Crystal Display
V
g
gg
ggg
φ
φ
Product Specification
6.
iewing angle is the an
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. 9 .
<Dimension of viewing angle range>
le at which the contrast ratio is greater than 10 or 5. The angles are
LM270WF1
φ
= 180°, Left
φ
= 270°, Down
www.jxlcd.com
www.jxlcd.com
7, Gray scale specification
Gamma Value is approximately 2.2. For more information see Table 11
Table 11. Gray Scale Specification
Gray Level Relative Luminance [%] (Typ.)
Normal
θ
[ FIGURE 9 ] Viewing angle
E
φ
Y
= 90°, Up
= 0°, Right
00.1
31 1.2
63 4.7
95 11.7
127 21.2
159 35.2
191 53.0
223 75.4
255 100
Ver 0.0 July. 2. 2008
23 / 31
Page 24
5. Mechanical Characteristics
Th
dditi
fig
LM270WF1
Liquid Crystal Display
Product Specification
e contents provide general mechanical characteristics. In a
mechanical drawing of the LCD.
Horizontal 630mm
Outline Dimension
Bezel Area
Active Display Area
Weight Typ : 4220 g , Max : 4430 g
Surface Treatment
Notes : Please refer to a mechanic drawing in terms of tolerance at the next page.
www.jxlcd.com
www.jxlcd.com
Vertical 368.2mm
Depth 37.2mm
Horizontal 602mm
Vertical 340.4mm
Horizontal 597.89mm
Vertical 336.31mm
Hard coating(3H)
Anti-glare treatment of the front polarizer
on the
ures in the next page are detailed
Ver 0.0 July. 2. 2008
24 / 31
Page 25
<FRONT VIEW>
LM270WF1
Liquid Crystal Display
Product Specification
www.jxlcd.com
www.jxlcd.com
Ver 0.0 July. 2. 2008
25 / 31
Page 26
<REAR VIEW>
LM270WF1
Liquid Crystal Display
Product Specification
www.jxlcd.com
www.jxlcd.com
Ver 0.0 July. 2. 2008
26 / 31
Page 27
6. Reliability
Envi
diti
3
High temperature operation test
Ta= 50
C
50%RH
240h
8
LM270WF1
Liquid Crystal Display
Product Specification
ronment test con
No Test Item Condition
1 High temperature storage test
2 Low temperature storage test
4 Low temperature operation test
5
6
7 Humidity condition Operation
Vibration test
(non-operating)
Shock test
(non-operating)
www.jxlcd.com
www.jxlcd.com
Altitude
on
Ta= 60°C 240h
Ta= -20°C 240h
°
Ta= 0°C 240h
Wave form : random
Vibration level : 1.0Grms
Bandwidth : 10-300Hz
Duration : X,Y,Z, 10min
One time each direction
Shock level : 100G
Waveform : half sine wave, 2ms
Direction : ±X, ±Y, ±Z
One time each direction
Ta= 40 °C ,90%RH
storage / shipment 0 - 40,000 feet(12192m)
9
Ver 0.0 July. 2. 2008
Maximum Storage Humidity for
4 corner light leakage Mura.
Max 70%RH , Ta=40℃
27 / 31
Page 28
LM270WF1
p
)
p()
Electrical
Equipment
in
the
Range
of9kHZto40
GHz.American
National
Standards
Institute(ANSI)
Liquid Crystal Display
Product Specification
7. International Standards
7-1. Safety
a) UL 60950-1:2003, First Edition, Underwriters Laboratories, Inc.,
Standard for Safety of Information Technology Equipment.
b) CAN/CSA C22.2, No. 60950-1-03 1
Standard for Safety of Information Technology Equipment.
c) EN 60950-1:2001, First Edition,
Euro
ean Committee for Electro technical Standardization(CENELEC
European Standard for Safety of Information Technology Equipment.
7-2. EMC
a) ANSI C63.4 “Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and
1992
b) C.I.S.P.R. “Limits and Methods of Measurement of Radio Interface Characteristics of Information
Technology Equipment.“ International Special Committee on Radio Interference.
c) EN 55022 “Limits and Methods of Measurement of Radio Interface Characteristics of Information
Technology Equipment.“ European Committee for Electro technical Standardization.(CENELEC), 1998
( Including A1: 2000 )
www.jxlcd.com
www.jxlcd.com
st
Ed. April 1, 2003, Canadian Standards Association,
“
,
Ver 0.0 July. 2. 2008
28 / 31
Page 29
Product Specification
8-1. Desig
k
E : MONTH
SERIAL NO.
b) Box Size :
747X335X466
8. Packing
nation of Lot Mar
a) Lot Mark
ABCDEFGHIJKLM
A,B,C : SIZE(INCH) D : YEAR
F M :
Note
1. YEAR
LM270WF1
Liquid Crystal Display
~
Year
Mark
2. MONTH
Month
Mark
www.jxlcd.com
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.
www.jxlcd.com
200320022001
321
200452005
4
Apr5May
4
2006720078200892009
6
Jun7Jul8Aug9Sep
6
8-2. Packing Form
a) Package quantity in one box : 5EA
2010
0
Oct
A
Nov
B
DecMarFebJan
C321
Ver 0.0 July. 2. 2008
29 / 31
Page 30
LM270WF1
(3) Please attach the surface transparent protective plate to the surface in order to protect the polarizer
And in lower temperature, response time(required time that brightness is stable after turned on) becomes
i
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.
.
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.
www.jxlcd.com
www.jxlcd.com
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.)
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
ts 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.
Ver 0.0 July. 2. 2008
30 / 31
Page 31
LM270WF1
(3) You can remove the glue easily. When the glue remains on the bezel surface or its vestige is recognized
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 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.
please wipe them off with absorbent cotton waste or other soft material like chamois soaked with normal-
hexane.
www.jxlcd.com
www.jxlcd.com
,
Ver 0.0 July. 2. 2008
31 / 31
Loading...