LG Display LM250WF2-TLB1 Specification
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( ) Preliminary Specification
(
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LM250WF2
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
Title 25” Full HD TFT LCD
BUYER General
MODEL
SIGNATURE DATE
/
/
SUPPLIER LG Display Co., Ltd.
*MODEL LM250WF2
SUFFIX TLB1
*When you obtain standard approval,
please use the above model name without suffix
APPROVED BY
J.H. Park / G.Manager
REVIEWED BY
J.G. Lee / Manager [C]
Y.S. Chung / Manager [M]
M.S. Kang / Manager [P]
DATE
/
Please return 1 copy for your confirmation
With your signature and comments.
Ver. 0.4 Oct, 20, 2010
PREPARED BY
B.H. An / Engineer
Product Engineering Dept.
LG Display Co., Ltd
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LM250WF2
Liquid Crystal Display
Product Specification
Contents
No ITEM
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 8
3) LVDS characteristics 11
4) SIGNAL TIMING SPECIFICATIONS 14
5) SIGNAL TIMING WAVEFORMS 15
6) COLOR INPUT DATA REFERNECE 16
7) POWER SEQUENCE 17
8) POWER DIP CONDITION 18
4 OPTICAL SPECIFICATIONS 19
Page
5 MECHANICAL CHARACTERISTICS 23
6 RELIABILITY 26
7 INTERNATIONAL STANDARDS 27
1) SAFETY
2) EMC
3) ENVIRONMENT
8 PACKING 28
1) DESIGNATION OF LOT MARK 28
2) PACKING FORM 28
9PRECAUTIONS 29
1) MOUNTING PRECAUTIONS 29
2) OPERATING PRECAUTIONS 29
3) ELECTROSTATIC DISCHARGE CONTROL 30
4) PRECAUTIONS FOR STRONG LIGHT EXPOSURE 30
5) STROAGE 30
6) HANDLING PRECAUTIONS FOR PROTECTION FILM 30
27
27
27
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LM250WF2
Liquid Crystal Display
Product Specification
Record of revisions
Revision No
0.0 JUL. 21. 2010 - Preliminary Specifications
0.1 AUG. 23. 2010 19 Color Coordinates Spec updated
0.2 SEP.07.2010 7
0.3 SEP.29.2010 14 Modify Timing spec ( request of HP )
0.4 OCT.20.2010 24
Revision
Date
AUG. 23. 2010 5 Add note2, 3
Page Description
Table 2-2 . LED Bar ELECTRICAL CHARACTERISTICS updated
5 Add note2, 3
19 Color Coordinates Spec updated
25
26
Update rear side drawing. (LCM Label Position changed)
Update Altitude Spec
Update front view. (section changed)
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LM250WF2
Liquid Crystal Display
Product Specification
1. General description
LM250WF2-TLB1 is a Color Active Matrix Liquid Crystal Display with an integral Light Emitting Diode (LED)
backlight system. 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 25 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 subpixels, the LM250WF2-TLA1’s characteristics provide an excellent flat panel display for office automation
products such as monitors.
FIG. 1 Block diagram
LVDS
pair #1
LVDS
pair #2
CN1
(30pin)
+5V
VLCD
Power circuit
Timing
controller
block
V
Led (4ch)
RGB
Source driver circuit
S1
G1
TFT-LCD Panel
(1920ÝRGBÝ1080 pixels)
G1080
Backlight assembly (White LED)
General features
Active screen size 25 inches(63.44cm) diagonal(Aspect ratio 16:9)
Outline Dimension 581.0(W) x 340.0(H) x 14.0(D) mm (Typ.)
Pixel Pitch 0.096 mm x 0.288 mm
Pixel Format 1920 hor. By 1080 vert. Pixels RGB stripes arrangement
S1920
Interface LVDS 2Port
Color depth 16.7M colors
Luminance, white 250 cd/m
2
( Center 1Point, typ)
Viewing Angle (CR>10) R/L 170(Typ.), U/D 160(Typ.)
Power Consumption
26.12W (Typ.) (5.0W@Logic + 21.12W @B/L)
Weight 2350g(typ.)
Display operating mode Transmissive mode, normally White
Surface treatments Hard coating(3H), Glare treatment of the front polarizer
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2. Absolute maximum ratings
The following are maximum values which, if exceeded,
may cause faulty operation or damage to the unit.
Table 1. Absolute maximum ratings
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LM250WF2
Liquid Crystal Display
Product Specification
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
LCD
OP
ST
OP
ST
-0.3 +6.0 Vdc At 25
0 50 ¶C
-20 60 ¶C
10 90 %RH
10 90 %RH
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, 90% RH only for 4 corner light leakage Mura.
3. Storage condition is guaranteed under packing condition
FIG. 2 Temperature and relative humidity
90%
60
60%
Wet Bulb
Temperature []
20
10
0
30
40
50
40%
10%
Humidity
[(%)RH]
Storage
Operation
1
10 20 30 40 50 60 70 800-20
Dry Bulb Temperature []
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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 a LED Driver. The LED Driver is an external unit to the LCDs.
Table 2-1. Electrical characteristics
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LM250WF2
Liquid Crystal Display
Product Specification
Parameter Symbol
Values
Unit Notes
Min Typ Max
MODULE :
Power Supply Input Voltage V
Permissive Power Input Ripple V
I
Power Supply Input Current
LCD-MOSAIC
I
LCD-BLACK
Power Consumption P
Inrush current I
LCD
LCD
LCD
RUSH
4.5 5.0 5.5 Vdc
- - 0.4 V 3
- 1000 1150 mA 1
- 1200 1360 mA 2
- 5.0 5.58 Watt 1
- - 3.0 A 4
Note :
1. The specified current and power consumption are
under the V
LCD=5.0V, 25 r 2¶C,f
whereas mosaic pattern(8 x 6) is displayed and f
=60Hz condition
V
is the frame frequency.
V
2. The current is specified at the maximum current pattern.
3. Permissive power ripple should be measured under VCC=5.0V, 25¶C, f
(frame frequency)=Max
V
condition and At that time, we recommend the bandwidth configuration of oscilloscope
is to be under 20MHz.
4. The duration of rush current is about 2ms and rising time of power Input is 500us r 20%.
FIG.3 pattern for Electrical characteristics
power consumption measurement
White : 255Gray
Black : 0Gray
Mosaic Pattern(8 x 6)
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power input ripple
Full Black Pattern
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Table 2-2 . LED Bar ELECTRICAL CHARACTERISTICS
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LM250WF2
Liquid Crystal Display
Product Specification
Parameter Symbol Condition
LED : 1,7
LED String Current Is - 110 120 mA 2,7
LED String Voltage Vs 43.5 48.0 52.5 V 3,7
Power Consumption
LED Life Time LED_LT 30,000 - - Hrs 5,7
PBar - 21.1 23.1 Watt 4,6,7
Min. Typ. Max.
Values
Unit Notes
LED driver design guide
: The design of the LED driver must have specifications for the LED in LCD Assembly.
The performance of the LED in LCM, for example life time or brightness, is extremely influenced by
the characteristics of the LED driver.
So all the parameters of an LED driver should be carefully designed and output current should be
Constant current control.
Please control feedback current of each string individually to compensate the current variation
among the strings of LEDs.
When you design or order the LED driver, please make sure unwanted lighting caused by
the mismatch of the LED and the LED driver (no lighting, flicker, etc) never occurs.
When you confirm it, the LCD module should be operated in the same condition as installed in
your instrument.
1. Specified values are for a single LED bar.
2. The specified current is input LED chip 100% duty current.
3. The specified voltage is input LED string and Bar voltage at typical 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 2¶C.
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 2¶C
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3-2. Interface connections
LCD connector(CN1) : GT103-30S-H23 (LSC) , IS100-L30B-C23 (UJU)
Mating connector : FI-X30H and FI-X30HL (JAE) or Equivalent
Table 4. Module connector(CN1) pin configuration
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LM250WF2
Liquid Crystal Display
Product Specification
Pin No
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Symbol Description
RXO0RXO0+
RXO1RXO1+
RXO2RXO2+
GND
RXOCRXOC+
RXO3RXO3+
RXE0RXE0+
GND
RXE1RXE1+
GND
RXE2RXE2+
RXECRXEC+
RXE3RXE3+
GND
NC
NC
NC
LCD
V
VLCD
VLCD
Minus signal of 1st channel 0 (LVDS)
Plus signal of 1st channel 0 (LVDS)
Minus signal of 1st channel 1 (LVDS)
Plus signal of 1st channel 1 (LVDS)
Minus signal of 1st channel 2 (LVDS)
Plus signal of 1st channel 2 (LVDS)
Ground
Minus signal of 1st clock channel (LVDS)
Plus signal of 1st clock channel (LVDS)
Minus signal of 1st channel 3 (LVDS)
Plus signal of 1st channel 3 (LVDS)
Minus signal of 2nd channel 0 (LVDS)
Plus signal of 2nd channel 0 (LVDS)
Ground
Minus signal of 2nd channel 1 (LVDS)
Plus signal of 2nd channel 1 (LVDS)
Ground
Minus signal of 2nd channel 2 (LVDS)
Plus signal of 2nd channel 2 (LVDS)
Minus signal of 2nd clock channel (LVDS)
Plus signal of 2nd clock channel (LVDS)
Minus signal of 2nd channel 3 (LVDS)
Plus signal of 2nd channel 3 (LVDS)
Ground
No Connection (For LCD internal use only.)
No Connection (For LCD internal use only.)
No Connection (For LCD internal use only.)
Power Supply (5.0V)
Power Supply (5.0V)
Power Supply (5.0V)
First Pixel data
Second Pixel data
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FIG. 4 Connector diagram
1’st signal pairs
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LM250WF2
Liquid Crystal Display
Product Specification
GT103-30S-H23 (LSC)
#1 #30
2’nd signal pairs
Note:
Power(+5V)
Rear view of LCM
1. NC: No Connection.
2. All GND(ground) pins should be connected together and to Vss which should also
be connected to the LCD’s metal frame.
3. All V
4. Input Level of LVDS signal is based on the IEA 664 Standard.
(power input) pins should be connected together.
LCD
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