Page 1
(●●●●) Preliminary Specification
( ) Final Specification
LM230WF4
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
23” Full HD TFT LCDTitle
BUYER
MODEL
*When you obtain standard approval,
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APPROVED BY
/
/
/
SIGNATURE
DATE
please use the above model name without suffix
APPROVED BY
G.T. Kim / G.Manager
REVIEWED BY
B.C. Song / Manager
PREPARED BY
H.Y. Kim / Engineer
LG Display Co., Ltd.SUPPLIER
LM230WF4*MODEL
TLA1SUFFIX
SIGNATURE
DATE
Please return 1 copy for your confirmation with
your signature and comments.
Ver. 0.2 Nov. 27. 2009
Products Engineering Dept.
LG. Display Co., Ltd
1 / 34
Page 2
Product Specification
CONTENTS
LM230WF4
Liquid Crystal Display
ITEMNo
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
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POWER SEQUENCE3-7
OPTICAL SFECIFICATIONS4
Page
1
2
3
4
5
6
6
9
13
17
18
19
20
21
MECHANICAL CHARACTERISTICS5
RELIABLITY6
INTERNATIONAL STANDARDS7
SAFETY7-1
EMC7-2
ENVIRONMENT7-3
PACKING8
DESIGNATION OF LOT MARK8-1
PACKING FORM8-2
PRECAUTIONS9
Ver. 0.2 Nov. 27. 2009
27
30
31
31
31
31
32
32
32
33
2 / 34
Page 3
Product Specification
RECORD OF REVISIONS
LM230WF4
Liquid Crystal Display
Revision
No
DescriptionPageRevision Date
Preliminary-Nov. 09. 20090.1
Delete Cover shield notch-Nov.25. 20090.2
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Ver. 0.2 Nov. 27. 2009
3 / 34
Page 4
LM230WF4
Liquid Crystal Display
Product Specification
1. General Description
LM230WF4 is a Color Active Matrix Liquid Crystal Display with an integral Cold Cathode Fluorescent Lamp
(CCFL) 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 23-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 A-FRC(Advanced Frame Rate Control). It is intended to support displays where high
brightness, super wide viewing angle and high color saturation, etc.
LVDS
2Port
LVDS
2Port
V
LCD
(+12V)
V
Lamp
V
Lamp
LVDS 3,4
CN2
(41pin)
LVDS 1,2
CN1
(51pin)
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General Features
Power Consumption
Timing Control Block
Power Circuit Block
CN3, 4
CN5, 6
(2Pin)
(2Pin)
23 inches (58.42cm) diagonalActive Screen Size
533.2(H) x 312.0(V) x 20.0(D) mm (Typ.)Outline Dimension
0.0884(H) mm x RGB x 0.2652(V) mmPixel Pitch
1920 horizontal x 1080 vertical Pixels, RGB stripe arrangementPixel Format
16.7M colorsColor Depth
400 cd/m
R/L 170(Typ.), U/D 160(Typ.)Viewing Angle(CR>10)
Total 30.42 W (Typ.) ( 4.92 W @
2,600g (Typ.)Weight
Transmissive mode, Normally WhiteDisplay Operating Mode
Hard coating (3H) & Anti-Glare treatment of the front polarizerSurface Treatment
Mini-LVDS(RGB)
Dual Gate Driver Circuit
G1
G1080
Figure 1. Block Diagram
2
(Center, 1 point)Luminance, White
Source Driver Circuit
S1
TFT - LCD Panel
(1920 × RGB × 1080 pixels)
Backlight Assembly (4 CCFLs)
V
LCD
, 25.50 W @ 400 cd/m2)
S1920
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Page 5
Liquid Crystal Display
Product Specification
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
LM230WF4
Parameter Notes
Power Supply 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.
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Wet Bulb
Temperature [C]
10
0
Symbol
LCD
OP
ST
OP
ST
50
40
30
20
Values
MaxMin
90%
60
60%
40%
Humidity [(%)RH]
10%
Units
Vdc12.4-0.3V
°C500T
°C60-20T
%RH9010H
%RH9010H
at 25 ± 2°C
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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Page 6
LM230WF4
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 other input power for the CCFL is typically generated by an inverter. The inverter is
an external unit to the LCDs.
Table 2. Electrical Characteristics (Module)
Parameter Symbol
MODULE :
Power Supply Input Voltage
Permissive Power Input Ripple
Differential Impedance
I
Power Supply Input Current
Power Consumption
Rush current
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.
2. The specified current and power consumption are under the V
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 ± 20%.
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I
LCD
dRF
m
LCD-MOSAIC_60Hz
LCD-Black_60Hz
LCD-MOSAIC_120Hz
LCD-Black_120Hz
LCD
RUSH
=12.0V, 25±2°C, fV(frame frequency)= 120Hz
LCD
Values
MaxTypMin
Vdc12.412.011.6V
Ohm11010090Z
mA760550I
mA1080680I
=12.0V, 25 ± 2°C, fV= 60Hz condition
LCD
NotesUnit
1mVp-p400V
2mA490410-
3mA580480-
2W12.964.92-P
4A3.0--I
Figure 3. Pattern for Electrical Characteristics
Mosaic Pattern(8 x 6)
White : 255Gray Black : 0Gray
Ver. 0.2 Nov. 27. 2009
Full Black Pattern
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Page 7
Product Specification
Table 3. Electrical Characteristics (Backlight System)
LM230WF4
Liquid Crystal Display
Parameter Symbol
LAMP :
Operating Voltage
Operating Current
Established Starting Voltage
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
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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.
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 VSshould be applied to the lamps for more than 1 second for start-up.
(Inverter open voltage must be more than lamp starting voltage.)
Otherwise, the lamps may not be turned on. The used lamp current is the lamp typical current.
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 far as 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%.
TSis the time required for the brightness of the center of the lamp to be not less than 95%.
6. The lamp power consumption shown above does not include loss of external inverter.
The used lamp current is the lamp typical current. (PBL= VBLx IBLx N
7. The life time 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 condition of continuous operating at 25 ± 2°C.
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V
BL
I
BL
S
f
BL
T
S
P
BL
830
(8.0mA)
50,000
Values
850
(7.5mA)
MaxTypMin
1,000
(3.0mA)
8.07.53.0
1,500
1,800
706040
3
28.125.5
)
LAMP
NotesUnit
RMS
RMS
V
RMS
V
RMS
1, 2V
1mA
1, 3V
4kHz
1, 5min
6W
1, 7Hrs
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Page 8
LM230WF4
Liquid Crystal Display
Product Specification
8. The output of the inverter must have symmetrical(negative and positive) voltage waveform and
symmetrical current waveform (Unsymmetrical ratio is less than 10%). Please do not use the inverter
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 edge type backlight with over 4 parallel lamps, input current and voltage waveform should
be synchronized
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* Distortion rate
I p(or I –p) / I
rms
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Page 9
LM230WF4
Liquid Crystal Display
Product Specification
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) or compatible
- 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
9 ODC_EN ODC Enable 35 R2CLKN 2nd LVDS Channel Clock Signal(-)
10 FPS_DET H: High Frame rate, L: Legacy 36 R2CLKP 2nd LVDS Channel Clock Signal(+)
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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Page 10
Liquid Crystal Display
Product Specification
Table 5. Module Connector (CN2) Pin Configuration
- LCD Connector(CN2): IS050-C41B-C39-A(manufactured by UJU) or compatible
- 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+)
LM230WF4
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
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#1
CN1 CN2
#51 #1 #41
#1 #51
#1 #41
[Rear view of LCM]
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Page 11
LM230WF4
Liquid Crystal Display
Product Specification
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, 1st& 2ndLVDS channel.
Right side image is applied to CN2, 3rd& 4thLVDS channel.
It should be tided up ‘L’ or ‘H’.
wavy noise, flickering, etc.
It should be tided up ‘L’ or ‘H’.
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Page 12
Liquid Crystal Display
Product Specification
3-2-2. Backlight system
Table 6. Lamp Connector Pin Configuration
- Lamp Connector(CN3,4,5,6): 35001HS-02LD (manufactured by Yeonho, Locking type)
- Mating Connector : 35001WR-02L (Yeonho) or compatible
The pin configuration for the connector is shown in the table below.
LM230WF4
Pin
1
2
Note :
1. The high voltage power terminal is colored Gray, Red
The low voltage pin color is White, Blue.
2. The backlight ground should be common with LCD metal frame.
Figure 5. Backlight connector diagram
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Up Side
Symbol
HV
LV
Lamp1
Lamp2
Description
High Voltage for Lamp
Low Voltage for Lamp
Notes
1
1, 2
CN3
CN4
Down Side
Lamp3
Lamp4
Ver. 0.2 Nov. 27. 2009
CN5
CN6
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Page 13
Liquid Crystal Display
Product Specification
3-3. LVDS characteristics
3-3-1. DC Specification
Description Symbol Min Max Unit Notes
LVDS Single end Voltage |VID| 200 600 mV -
LM230WF4
LVDS Common mode Voltage V
LVDS Input Voltage Range V
Change in common mode Voltage ΔV
3-3-2. AC Specification
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LVDS Clock
LVDS Data
( f
CLK
=1/t
CLK
)
LVDS 1’st Clock
LVDS 2nd/ 3rd/ 4thClock
t
t
SKEW
t
SKEW_CLKtSKEW_CLK
SKEW
CM
IN
CM
t
CLK
1.1 1.4 V -
0.8 1.6 V -
- 250 mV -
t
CLK
Description Symbol Min Max Unit Notes
LVDS Clock to Data Skew Margin t
LVDS Clock to Clock Skew Margin t
Ver. 0.2 Nov. 27. 2009
SKEW
SKEW_CLK
-1/7tc*(n+0.25) 1/7tc*(n+0.25)
- 1/7 + 1/7 t
ps -
CLK
-
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Page 14
Product Specification
3-3-3. LVDS data format (8bit, VESA)
■ 1st LVDS Channel
t
CLK
t
CLK
*4/7
R1CLKP
R1CLKN
t
CLK
LM230WF4
Liquid Crystal Display
*3/7
R1AP/N
R1BP/N
R1CP/N
R1DP/N
Previous (N-1)th cycle
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■ 2nd LVDS Channel
t
CLK
*4/7
R2CLKP
R2CLKN
R2AP/N
R2BP/N
R2CP/N
R2DP/N
R15 R14 R13 R12G10 R11R10’ R10R11’ G10”
B10 G15 G14 G13B11 G12G11’ G11G12’ B11”
V
SYNCHSYNC
B17 B16 G17 G16X R17R16’ R16R17’ X”
Current (N)th cycle
t
CLK
R25 R24 R23 R22G20 R21R20’ R20R21’ G20”
B20 G25 G24 G23B21 G22G21’ G21G22’ B21”
V
SYNCHSYNC
B27 B26 G27 G26X R27R26’ R26R27’ X”
B15 B14DE B13B12’ B12B13’ DE”
t
CLK
*3/7
B25 B24DE B23B22’ B22B23’ DE”
Next (N+1)th cycle
MSB
LSB
R17/G17/B17MSB
R16/G16/B16
R15/G15/B15
R14/G14/B14
R13/G13/B13
R12/G12/B12
R11/G11/B11
R10/G10/B10LSB
R27/G27/B27
R26/G26/B26
R25/G25/B25
R24/G24/B24
R23/G23/B23
R22/G22/B22
R21/G21/B21
R20/G20/B20
Previous (N-1)th cycle
Ver. 0.2 Nov. 27. 2009
Current (N)th cycle
Next (N+1)th cycle
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Page 15
Product Specification
3-3-3. LVDS data format (8bit, VESA)
■ 3rd LVDS Channel
t
CLK
t
CLK
*4/7
R3CLKP
R3CLKN
t
CLK
LM230WF4
Liquid Crystal Display
*3/7
R3AP/N
R3BP/N
R3CP/N
R3DP/N
Previous (N-1)th cycle
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■ 4th LVDS Channel
t
CLK
*4/7
R4CLKP
R4CLKN
R4AP/N
R4BP/N
R4CP/N
R4DP/N
R35 R34 R33 R32G30 R31R30’ R30R31’ G30”
B30 G35 G34 G33B31 G32G31’ G31G32’ B31”
V
SYNCHSYNC
B37 B36 G37 G36X R37R36’ R36R37’ X”
Current (N)th cycle
t
CLK
R45 R44 R43 R42G40 R41R40’ R40R41’ G40”
B40 G45 G44 G43B41 G42G41’ G41G42’ B41”
V
SYNCHSYNC
B47 B46 G47 G46X R47R46’ R46R47’ X”
B35 B34DE B33B32’ B32B33’ DE”
t
CLK
*3/7
B45 B44DE B43B42’ B42B43’ DE”
Next (N+1)th cycle
MSB
LSB
R37/G37/B37MSB
R36/G36/B36
R35/G35/B35
R34/G34/B34
R33/G33/B33
R32/G32/B32
R31/G31/B31
R30/G30/B30LSB
R47/G47/B47
R46/G46/B46
R45/G45/B45
R44/G44/B44
R43/G43/B43
R42/G42/B42
R41/G41/B41
R40/G40/B40
Previous (N-1)th cycle
Ver. 0.2 Nov. 27. 2009
Current (N)th cycle
Next (N+1)th cycle
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Page 16
Liquid Crystal Display
Product Specification
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
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－
LM230WF4
11 TTL Input (G3)D12 39 Positive LVDS differential clock outputTXCLKOUT＋
12 TTL Input (G4)D13 40 Negative LVDS differential clock outputTXCLKOUT－
13 Ground pin for TTLGND 41 Positive LVDS differential data output 2TXOUT2＋
14 TTL Input (G5)D14 42 Negative LVDS differential data output 2TXOUT2－
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 1TXOUT1＋
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 1TXOUT1－18 TTL Input (B7)D17
47 Positive LVDS differential data output 0TXOUT0＋
48 Negative LVDS differential data output 0TXOUT0－
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 : Refer to LVDS Transmitter Data Sheet for detail descriptions.
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Page 17
LM230WF4
Liquid Crystal Display
Product Specification
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
Parameter
D
CLK
Horizontal
Vertical
DE
(Data Enable)
Data
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
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
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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
1,080
4
specification.
CLK
Typ
27.8
36
480
544
1,080
-
Max
33.3
100
480
560
1,080
1,7331,1001,090t
--4t
--4t
-
--4t
Unit
ns
MHz
t
CLK
kHz1926664f
t
HP
Hz1226050f
ns
ns
Notes
GUI typ. :
144MHz@60Hz
For D
CLK
For D
CLK
Ver. 0.2 Nov. 27. 2009
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Page 18
3-5. Signal Timing Waveforms
[ D
CLK ,
DE, DATA waveforms]
t
CLK
Dclk
t
SD
Invalid
Data
DE(Data Enable)
t
SI
Product Specification
t
HD
Valid
LM230WF4
Liquid Crystal Display
Invalid
t
HI
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[ Hsync, Vsync, DE waveforms ]
Hsync
DE(Data Enable)
Vsync
t
WH
t
WV
DE(Data Enable)
t
t
VBP
HBP
t
HP
t
HV
t
VP
t
VV
t
t
HFP
VFP
Ver. 0.2 Nov. 27. 2009
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Page 19
LM230WF4
Liquid Crystal Display
Product Specification
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
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
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MSB LSB
RED
MSB LSB
GREEN
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
BLUE
............
GREEN
BLUE (000) Dark
BLUE
Ver. 0.2 Nov. 27. 2009
0 0 0 0 0 0 0 00 0 0 0 0 0 0 10 0 0 0 0 0 0 0GREEN (001)
............
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)
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)
19 / 34
Page 20
3-7. Power Sequence
LM230WF4
Liquid Crystal Display
Product Specification
90% 90%
Power Supply for LCD
V
LCD
Interface Signal
V
I
Option signal
(ODC_EN ,FPS_DET, MST)
Power for LAMP
Table 10. Power Sequence
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Parameter
0V
10%
T1
T2 T5 T7
Valid data
T8
T3
Lamp on
OFF
Values
T9
T4
10%
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. Lamp power must be turn on after power supply V
Ver. 0.2 Nov. 27. 2009
LCD
and interface signal are valid.
ms50-0.01T2
ms--500T3
--200T4
LCD
to 0V.
ms
ms50-0.01T5
ms-500T7
ms0 < T8 < T2T8
ms0 < T9 < T5T9
20 / 34
Page 21
LM230WF4
Liquid Crystal Display
Product Specification
4. Optical Specifications
Optical characteristics are determined after the unit has been ‘ON’ for approximately 30 minutes
in a dark environment at 25±2°C. The values specified are at an approximate distance 50cm from the LCD
surface at a viewing angle of Φ and θ 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
Pritchard 880 or
equivalent
Optical Stage(x,y)
LCD Module
50cm
Table 11. Optical Characteristics
Surface Luminance, white
Luminance Variation
Response Time
Color Coordinates
[CIE1931]
Viewing Angle (CR>10)
Luminance uniformity Angular dependence
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x axis, right(φ=0°)
x axis, left (φ=180°)
y axis, up (φ=90°)
y axis, down (φ=270°)
Rise Time
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Decay Time
Gray to Gray
RED
GREEN
BLUE
WHITE
SymbolParameter
δ
WHITE
WHITE
R
D
GTG
Rx
θr
θl
θu
θd
R
(Ta=25 °C, V
Typ
-0.03
- 8%1.5-Crosstalk
-
-
=12.0V, fV=60Hz D
LCD
Values
0.644
0.336Ry
0.295Gx
0.614Gy
0.146Bx
0.072By
0.313Wx
0.329Wy
MaxTypMin
-1,000700CRContrast Ratio
-400320L
Typ
+0.03
-8570
-7560
-8570
=144MHz, IBL=7.5mA)
CLK
2
%-72-Color Gamut
NotesUnits
1
2cd/m
3%--75
4ms41-Tr
4ms84-Tr
5ms63-T
6Degree-8570
7-2.2-Gray Scale
91.7-L
10--0.01Δu’v’Color grayscale linearity
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Page 22
Product Specification
Notes :
1. Contrast ratio (CR) is defined mathematically as :
It is measured at center point (1)
LM230WF4
Liquid Crystal Display
Contrast ratio = ---------------------------------------------------------
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 , δ
δ
For more information see Figure 7.
Figure 7. Luminance measuring point
= --------------------------------------------- x 100 (%)
WHITE
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Surface luminance with all white pixels
Surface luminance with all black pixels
is defined as :
WHITE
Minimum (P1,P2 …..P9)
Maximum (P1,P2 …..P9)
H
H
H/2
V/2
V
V/10
<Measuring point for luminance variation> <Measuring point for surface luminance>
Ver. 0.2 Nov. 27. 2009
5 6
7
@ H,V : Active Area
3
1
8
H/10
42
9
H/2
V/2
V
22 / 34
Page 23
Liquid Crystal Display
Product Specification
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
LM230WF4
rR)
Tr
R
100%
90%
Optical
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
- T
- T
Table 12. Gray to Gray Response time Table
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GTG (Typ)
GTG (Max)
www.jxlcd.com
is the typical specification of total average time at rising time and falling time for ‘Gray to Gray’.
is the maximum specification of total average time at rising time and falling time for ‘Gray to
Gray’.
Gray to Gray
white black white
Tr
D
Rising Time
G0G63G127G191G255
G255
G191
Falling Time
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 .
Ver. 0.2 Nov. 27. 2009
G127
G63
G0
23 / 34
Page 24
Figure 9. Viewing Angle
LM230WF4
Liquid Crystal Display
Product Specification
φ
= 180°, Left
φ
= 270°, Down
7. Gray scale specification
Gamma Value is approximately 2.2.
8. Crosstalk is defined as :
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The equation of crosstalk : (L
Normal
θ
<Dimension of viewing angle range>
A[or C]2-LA[or C]1
(L
B[or D]2-LB[or D]1
/L
/L
E
φ
A[or C]1
B[or D]1
Y
φ
) ×100(%) [Vertical],
) ×100(%) [Horizontal]
φ
= 90°, Up
= 0°, Right
Figure 10. Crosstalk
A/2
L
A1
B
L
B1
L
C1
A
Pattern 1
(Half gray: gray 127)
Ver. 0.2 Nov. 27. 2009
A/8
L
B/8
D1
B/2
(Background: gray 127, Rectangular: gray 0, gray255 )
A/4 A/2 A/4
L
A2
L
B2
L
C2
Pattern 2
B/4
B/2
L
D2
B/4
24 / 34
Page 25
LM230WF4
Liquid Crystal Display
Product Specification
9. Luminance Uniformity - angular – dependence (LR& TB)
TCO ‘03 Luminance uniformity – angular dependence, is the capacity of the VDU
to present the same Luminance level independently of the viewing direction.
The angular-dependent luminance uniformity is calculated as the ratio of maximum luminance to
minimum luminance in the specified measurement areas.
- Test pattern : 80% white pattern
- Test point : 2-point
- Test distance : D x 1.5
- Test method : LR= ((L
TB = ((L
Figure 11. Luminance Uniformity Angular Dependence
max.+30deg.
max.+15deg.
/ L
min. +30deg.
/ L
min. +15deg.
) + (L
)
max. -30deg.
/ L
min. -30deg.
)) / 2
H
D
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< Luminance uniformity - angular dependence measuring point >
V/2
V
V/2
L
H/10
T
C
B
H/10
V/10
R
V/10
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Page 26
LM230WF4
Liquid Crystal Display
Product Specification
10. Color grayscale linearity , Δu’v’ is defined as :
22
)''()''(
BABA
vvuu −− +
Where indices A and B are the two gray levels found to have the largest color differences between them.
i.e. get the largest Δu’ and Δv’ of each 6pairs of u’ and v’ and calculate Δu’v’ .
-Test pattern : 100% full white pattern with a test pattern as shown Figure 12.
Squares of 40mm by 40mm in size, filled with 255, 225, 195, 165, 135 and 105
grayscale steps should be arranged in the center of the screen.
-Test method
First gray step : move a square of 255 gray level should be moved into the center of the screen
and measure luminance and u’ and v’ coordinates.
Next gray step : move a 255 gray square into the center and measure both luminance and
u’ and v’ coordinates.
The same procedure shall then be repeated for gray steps 195, 165, 135 and 105.
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Figure 12. Color grayscale linearity
40mm
40mm
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Page 27
LM230WF4
Liquid Crystal Display
Product Specification
5. Mechanical Characteristics
The contents provide general mechanical characteristics. In addition the figures in the next page are detailed
mechanical drawing of the LCD.
Table 13. Mechanical characteristics
533.2mmHorizontal
Outline Dimension
Bezel Area
Active Display Area
Typ. : 2,600g , Max : 2,730gWeight
Surface Treatment
Notes : Please refer to a mechanic drawing in terms of tolerance at the next page.
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Hard coating (3H)
Anti-glare treatment of the front polarizer
312.0mmVertical
20.0 mmDepth
513.784mmHorizontal
291.016mmVertical
509.184mmHorizontal
286.416mmVertical
Ver. 0.2 Nov. 27. 2009
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Page 28
<FRONT VIEW>
LM230WF4
Liquid Crystal Display
Product Specification
www.jxlcd.com
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28 / 34
Page 29
<REAR VIEW>
LM230WF4
Liquid Crystal Display
Product Specification
www.jxlcd.com
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Ver. 0.2 Nov. 27. 2009
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Page 30
Product Specification
6. Reliability
Table 13. Environment test conditions
No Test Item Condition
Ta= 60°C 240hrsHigh temperature storage test1
Ta= -20°C 240hrsLow temperature storage test2
Ta= 50°C 50%RH 240hrsHigh temperature operation test3
Ta= 0°C 240hrsLow temperature operation test4
Wave form : random
5
6
Vibration test
(non-operating)
Shock test
(non-operating)
Vibration level : 1.0GRMS
Bandwidth : 10-300Hz
Duration : X,Y,Z, 20 min
One time each direction
Shock level : 120G
Waveform : half sine wave, 2msec
Direction : ±X, ±Y, ±Z
One time each direction
LM230WF4
Liquid Crystal Display
Altitude
7
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[ 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.
operating
storage / shipment
0 - 16,400 feet(5,000m)
0 - 40,000 feet(12,192m)
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Page 31
LM230WF4
Liquid Crystal Display
Product Specification
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.
7-2. EMC
a) ANSI C63.4 – 2003 “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) C.I.S.P.R. Pub. 22. Limits and methods of measurement of radio interference characteristics of
information technology equipment." International Special Committee on Radio Interference
(C.I.S.P.R.), 2005.
c) EN 55022 "Limits and methods of measurement of radio interference characteristics of information
technology equipment." European Committee for Electrotechnical Standardization (CENELEC), 2006.
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7-3. Environment
a) RoHS, Directive 2002/95/EC of the European Parliament and of the council of 27 January 2003
Ver. 0.2 Nov. 27. 2009
31 / 34
Page 32
Product Specification
8. Packing
8-1. Designation of Lot Mark
a) Lot Mark
A B C D E F G H I J K L M
A,B,C : SIZE(INCH) D : YEAR
E : MONTH F ~ M : SERIAL NO.
Note
1. YEAR
LM230WF4
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.
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200320022001
321
200452005
4
Apr5May
4
2006720078200892009
6
Jun
Jul8Aug9Sep
6
7
8-2. Packing Form
a) Package quantity in one box : 7 pcs
b) Box Size : 424 x 328 x 603mm
2010
0
Oct
A
Nov
B
DecMarFebJan
C321
Ver. 0.2 Nov. 27. 2009
32 / 34
Page 33
LM230WF4
Liquid Crystal Display
Product Specification
9. PRECAUTIONS
Please pay attention to the followings when you use this TFT LCD module.
9-1. MOUNTING PRECAUTIONS
(1) You must mount a module using holes arranged in four corners or four sides.
(2) You should consider the mounting structure so that uneven force (ex. Twisted stress) is not applied to the
module. And the case on which a module is mounted should have sufficient strength so that external
force is not transmitted directly to the module.
(3) Please attach the surface transparent protective plate to the surface in order to protect the polarizer.
Transparent protective plate should have sufficient strength in order to the resist external force.
(4) You should adopt radiation structure to satisfy the temperature specification.
(5) Acetic acid type and chlorine type materials for the cover case are not desirable because the former
generates corrosive gas of attacking the polarizer at high temperature and the latter causes circuit break
by electro-chemical reaction.
(6) Do not touch, push or rub the exposed polarizers with glass, tweezers or anything harder than HB
pencil lead. And please do not rub with dust clothes with chemical treatment.
Do not touch the surface of polarizer for bare hand or greasy cloth.(Some cosmetics are detrimental
to the polarizer.)
(7) When the surface becomes dusty, please wipe gently with absorbent cotton or other soft materials like
chamois soaks with petroleum benzene. Normal-hexane is recommended for cleaning the adhesives
used to attach front / rear polarizers. Do not use acetone, toluene and alcohol because they cause
chemical damage to the polarizer.
(8) Wipe off saliva or water drops as soon as possible. Their long time contact with polarizer causes
deformations and color fading.
(9) Do not open the case because inside circuits do not have sufficient strength.
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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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Page 34
LM230WF4
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.
(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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