LG LM-230WF3-SLA1 Service manual
( ● ) Preliminary Specification
( ● ) Final Specification
LM230WF3
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
23” Full HD TFT LCDTitle
BUYER
MODEL
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APPROVED BY
/
/
/
HP
*When you obtain standard approval,
please use the above model name without suffix
SIGNATURE
DATE
SUPPLIER LG Display Co., Ltd.
*MODEL LM230WF3
SUFFIX SLA1
APPROVED BY
J. H. Park / G.Manager
REVIEWED BY
J. H. Song / Manager [C]
S. Y. An / Manager [M]
S. H. Cho / Manager [P]
PREPARED BY
K. H. Lee / Engineer
SIGNATURE
DATE
Please return 1 copy for your confirmation with
your signature and comments.
Ver. 1.1 Dec., 07, 2010
MNT Products Engineering Dept.
LG Display Co., Ltd
1 / 32
Product Specification
Contents
LM230WF3
Liquid Crystal Display
No ITEM
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
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3-7 V
4 OPTICAL SPECIFICATIONS
5 MECHANICAL CHARACTERISTICS
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Power Dip Condition
LCD
Page
1
2
3
4
5
6
6
9
14
15
16
17
18
19
25
6 RELIABLITY
7 INTERNATIONAL STANDARDS
7-1 SAFETY
7-2 EMC
7-3 ENVIRONMENT
8 PACKING
8-1 DESIGNATION OF LOT MARK
8-2 PACKING FORM
9 PRECAUTIONS
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Product Specification
RECORD OF REVISIONS
LM230WF3
Liquid Crystal Display
Revision
No
0.0 Nov., 26, 2009 - First Draft, Preliminary Specifications
0.1 Dec., 01, 2009 13 Update Backlight configurations.
0.3 Dec., 22, 2009 13 Update Backlight configurations.
0.4 Mar., 16, 2010 6 Update Electrical Characteristics.
0.5 Jul., 06, 2010 8 Update LED Bar Electrical Characteristic
1.0 Dec., 01, 2010 13 Change LED Connector Vendor (JST YEONHO)
Revision
Date
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Page Description
Update the rear view drawing. (LED Connector pin number)27Dec., 21, 20090.2
19 Update Optical Characteristics. (Color Coordinates , Color Gamut)
25 Update Mechanical Characteristics. (Weight:1,750g)
27 Update Backlight configurations.
30 Update Package quantity in one box : 8pcs 10pcs
27 Update Drawing by changing Cover shield.
30 Changed Box Size (350 x 300 x 600 408 x 355 x 600)
19 Correct a Color Gamut diagram (CIE1976 CIE1931)
26 Correct the wrong drawing dimension between Case Top and Panel
29 Update the International Standards of LED
30 Update Box Size (408 x 355 x 600 365 X 418 X 618)
- Final Specification
1.1 Dec., 07, 2010 27 Correct the LED Connector model name
Ver. 1.1 Dec., 07, 2010
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LM230WF3
Liquid Crystal Display
Product Specification
1. General Description
LM230WF3 is a Color Active Matrix Liquid Crystal Display with a 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 black mode. It has a 23 inch diagonally measured
active display area with FHD resolution (1080 vertical by 1920horizontal 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 A-FRC (Advanced Frame Rate Control).
It has been designed to apply the 8Bit 2 port LVDS interface.
It is intended to support displays where high brightness, super wide viewing angle,
high color saturation, and high color are important.
Mini-LVDS (RGB)
EEPROM
Source Driver Circuit
LED
I2C
Timing
Controller
Power Circuit
Block
CN2 (6PIN)
Logic Power
3.3V
[ Figure 1 ] Block diagram
2
( Center 1 Point, Typ.)
LVDS
2port
CN1
(30pin)
+12.0V
+12.0V
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V
General Features
Active Screen Size 23 inches(58.42cm) diagonal
Outline Dimension 533.2(H) x 312.0(V) x 11.5(D) mm (Typ.)
Pixel Pitch 0.2652 mm x 0.2652 mm
Pixel Format 1920 horiz. By 1080 vert. Pixels RGB stripes arrangement
Color Depth 16,7M colors (6bit + A-FRC)
Luminance, White 250 cd/m
Viewing Angle(CR>10) View Angle Free (R/L 178(Typ.), U/D 178(Typ.))
S1 S1920
G1
TFT - LCD Panel
(1920 × RGB × 1080 pixels)
G1080
Back light Assembly
(LED)
Power Consumption Total 26.63 Watt (Typ.) ( 4.1 Watt @VLCD, 22.53 Watt @Is=110mA )
Weight 1,750g (typ.)
Display Operating Mode Transmissive mode, normally black
Surface Treatment Hard coating (3H), Glare treatment of the front polarizer
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LM230WF3
Liquid Crystal Display
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
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.
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
FIG.2 Temperature and relative humidity
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VLCD -0.3 12.4 Vdc
TOP 0 50
TST -20 60
HOP 10 90 %RH
HST 10 90 %RH
Values
Units Notes
Min Max
at 25 2°C
°C
°C
1, 2, 3
90%
60
60%
Wet Bulb
50
Temperature [C]
40
30
20
10
0
10 20 30 40 50 60 70 800-20
Dry Bulb Temperature [C]
Ver. 1.1 Dec., 07, 2010
40%
10%
Storage
Operation
Humidity [(%)RH]
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LM230WF3
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
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
Parameter Symbol
MODULE :
VLCD Power Supply Input Voltage
VdRF Permissive Power Input Ripple
Zm Differential Impedance
ILCD Power Supply Input Current
Power Consumption
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Note :
1. Permissive power ripple should be measured under V
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
whereas Mosaic and max power pattern shown in the [ Figure 3 ] is displayed.
Pc TYP
Pc MAX
IRUSH Rush current
Values
MaxTypMin
12.41211.6
100
11010090
390340-
440385-
4.74.1-
5.34.6-
3.0--
=12.0V, 25°C, fV(frame frequency)=MAX
LCD
=12.0V, 25 2°C,f
LCD
Vdc
Ohm
=60Hz condition
V
NotesUnit
1mVp-p
2mA
3mA
2Watt
3Watt
4A
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
LM230WF3
Liquid Crystal Display
Permissive Power input ripple (V
White pattern
Power consumption (V
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LCD
=12V, 25°C, fV (frame frequency=60Hz condition)•
LCD
=12.0V, 25°C, fV(frame frequency)=MAX condition)•
Black pattern
Typical power Pattern
FIG.3 Mosaic pattern & White Pattern for power consumption measurement
Ver. 1.1 Dec., 07, 2010
Maximum power Pattern
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Product Specification
Table 2-2. LED Bar ELECTRICAL CHARACTERISTICS
LM230WF3
Liquid Crystal Display
ConditionSymbolParameter
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.
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Values
Max.Typ.Min.
Unit
Notes
1,7LED :
2,7mA120110-Is LED String Current
3,7V54.451.248Vs LED String Voltage
4,6,7Watt23.9422.5321.12PBar
5,7Hrs--30,000LED_LT LED 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 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 2°C
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Liquid Crystal Display
Product Specification
3-2. Interface Connections
3-2-1. LCD Module
LCD Connector(CN1) : IS100-L30O-C23 (UJU), GT103-30S-HF15 (LSM) -
Mating Connector : FI-X30C2L (Manufactured by JAE) or Equivalent-
Table 3. MODULE CONNECTOR(CN1) PIN CONFIGURATION
No Symbol Description No Symbol Symbol
LM230WF3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
FR0M
FR0P
FR1M
FR1P
FR2M
FR2P
GND
FCLKINM
FCLKINP
FR3M
FR3P
SR0M
SR0P
GND
SR1M
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)
Plus signal of odd clock channel (LVDS)
Minus signal of odd channel 3 (LVDS)
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Plus signal of odd channel 3 (LVDS)
Minus signal of even channel 0 (LVDS)
Plus signal of even channel 0 (LVDS)
Ground
Minus signal of even channel 1 (LVDS)
16
SR1P
17
GND
18
SR2M
19
SR2P
20
SCLKINM
21
SCLKINP
22
SR3M
23
SR3P
24
GND
25
NC
26
NC
PWM_OUT For Control Burst frequency of Inverter
27
28
VLCD
29
VLCD
30
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 (I2C Serial interface for LCM)
No Connection.(I2C Serial interface for LCM)
Power Supply +12.0V
Power Supply +12.0V
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 VLCD (power input) pins should be connected together.
3. Input Level of LVDS signal is based on the IEA 664 Standard.
4. PWM_OUT signal controls the burst frequency of a inverter.
This signal is synchronized with vertical frequency.
It’s frequency is 3 times of vertical frequency, and it’s duty ratio is 50%.
If you don’t use this pin, it is no connection.
IS100-L30O-C23
#1 #30
FIG.4 Connector diagram
Ver. 1.1 Dec., 07, 2010
#1
#30
Rear view of LCM
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LM230WF3
Liquid Crystal Display
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 InputTX CLKIN
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
9 Power Supply for TTL InputVCC 37 Positive LVDS differential data output 3TxOUT3＋
10 TTL Input (G7)D11 38 Negative LVDS differential data output 3TxOUT3－
11 TTL Input (G3)D12 39 Positive LVDS differential clock outputTX CLKOUT＋
12 TTL Input (G4)D13 40 Negative LVDS differential clock outputTX CLKOUT－
13 Ground pin for TTLGND 41 Positive LVDS differential data output 2TX OUT2＋
14 TTL Input (G5)D14 42 Negative LVDS differential data output 2TX OUT2－
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 1TX OUT1＋
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 InputVCC 54 TTL Input (R2)D2
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46 Negative LVDS differential data output 1TX OUT1－18 TTL Input (B7)D17
47 Positive LVDS differential data output 0TX OUT0＋
48 Negative LVDS differential data output 0TX OUT0－
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
55 TTL Input (R3)D327 TTL Input (HSYNC)D24
56 TTL Input (R4)D428 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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