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LM230WF1-TLA1
Specification
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LG.Philips LCD LM230WF1-TLA1 Specification

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LM230WF1
Liquid Crystal Display
Product Specification
FOR
APPROVAL
() Preliminary Specification ( ) Final Specification
BUYER
MODEL
APPROVED BY
/
/
FSC
SIGNATURE
DATE
23” Full HD TFT LCDTitle
LG. Display Co., Ltd.SUPPLIER
LM230WF1*MODEL
TLA1SUFFIX
*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
SIGNATURE
DATE
PREPARED BY
/
Please return 1 copy for your confirmation with
your signature and comments.
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LM230WF1
Liquid Crystal Display
Product Specification
Contents
PageITEMNo
COVER
CONTENTS
RECORD OF REVISIONS
GENERAL DESCRIPTION1
ABSOLUTE MAXIMUM RATINGS2
ELECTRICAL SPECIFICATIONS3
ELECTRICAL CHARACTREISTICS3-1
INTERFACE CONNECTIONS3-2
SIGNAL TIMING SPECIFICATIONS3-3
SIGNAL TIMING WAVEFORMS3-4
COLOR INPUT DATA REFERNECE3-5
POWER SEQUENCE3-6
OPTICAL SFECIFICATIONS4
MECHANICAL CHARACTERISTICS5
RELIABLITY6
1
2
3
4
5
6
6
8
12
13
14
15
17
23
26
INTERNATIONAL STANDARDS7
SAFETY7-1
EMC7-2
PACKING8
DESIGNATION OF LOT MARK8-1
PACKING FORM8-2
PRECAUTIONS9
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LM230WF1
Liquid Crystal Display
Product Specification
RECORD OF REVISIONS
Revision No
Revision
Date
DescriptionPage
First Draft(Preliminary)-July.04.20080.0
16July.15.20080.1
Max Frequency is 87.5Mhz, Min Frequency is 60Mhz and Min H total is 1000
Mechanical drawing is updated. Cover shied27
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1. General Description
LM230WF1 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 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 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.
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LM230WF1
Liquid Crystal Display
Product Specification
RGB, Dclk, DE Hsync, Vsync
(LVDS 2 port)
V
(+5V)
LCD
V
Lamp
V
Lamp
CN1
(30pin)
General Features
CN2, 3(2PIN) CN4, 5(2PIN)
23 inches(58.42cm) diagonalActive Screen Size
533.2(H) x 312.0(V) x 16.5(D) mm(Typ.)Outline Dimension
0.266 mm x 0.266 mmPixel Pitch
TimingControl
Block
PowerCircuit Block
Figure 1. Block diagram
Source Driver Circuit
S1920S1
Gate Driver circuit
G1
TFT-LCD Panel
(1680 × 1050pixels)
G1080
Backlight Assembly(4 CCFL)
1920 horiz. By 1080 vert. Pixels RGB stripes arrangementPixel Format
8-bit with A-FRC, 16,777,216 colorsColor Depth
300 cd/m
2
(Center 1 point)Luminance, White
View Angle Free (R/L 170(Typ.), U/D 160(Typ.))Viewing Angle(CR>10)
Total 30.25 Watt (Typ.) ( 4.75 Watt @VLCD, 25.5 Watt @300cd/])Power Consumption
2600g(typ.)Weight
Transmissive mode, normally WhiteDisplay Operating Mode
Surface Treatment
Hard coating(3H) & Anti-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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LM230WF1
Liquid Crystal Display
Product Specification
Parameter Notes
Symbol
Values
MaxMin
Units
Power Input Voltage
Operating Temperature
Storage Temperature
Operating Ambient Humidity
Storage Humidity
500TOP
60-20TST
C
C
%RH9010HOP
%RH9010HST
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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ڑڋڀ
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ڌڋڀ
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ڋ
at 25 ± 2CVdc5.54.5VLCD
1
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ڟۍ۔ ڝېۇڽ گۀۈۋۀۍڼۏېۍۀ ڶڞڸ
Figure 2. Temperature and relative humidity
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3. Electrical Specifications
3-1. Electrical Characteristics
It requires two power inputs. One is employed to power the LCD electronics and to drive the TFT array and liquid crystal. The second input power for the CCFL, is typically generated by an inverter. The inverter is an external unit to the LCDs.
Table 2-1. ELECTRICAL CHARACTERISTICS
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LM230WF1
Liquid Crystal Display
Product Specification
Parameter Symbol
MODULE :
VLCDPower Supply Input Voltage
Differential Impedance
-
ILCDPower Supply Input Current
-
-Pc TYP
Power Consumption
-PcMAX
Values
MaxTypMin
5.554.5
Vdc
Ohm11010090Zm
1064950
14001250
5.2254.75
6.8756.25
Note :
1. Permissive power ripple should be measured under VCC=5.0V, 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.
NotesUnit
1mVp-p400VdRFPermissive Power Input Ripple
2mA
3mA
2Watt
3Watt
4A3.0--IRUSHRush current
2. The specified current and power consumption are under the V
=5.0V, 25 ± 2C,fV=60Hz condition
LCD
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
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• Permissive Power input ripple (VCC=5.0V, 25C, fV(frame frequency)=MAX condition)
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LM230WF1
Liquid Crystal Display
Product Specification
White pattern
• Power consumption (VCC=5.0V, 25C, fV (frame frequency=60Hz condition)
Typical power Pattern
Figure 3. Mosaic pattern & Black Pattern for power consumption measurement
Black pattern
Max power Pattern
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Table 2_2. ELECTRICAL CHARACTERISTICS
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LM230WF1
Liquid Crystal Display
Product Specification
Values
MaxTypMin
1000 (3.0mA)850 (7.5mA)830(8.0mA)
8.07.53.0
1500
1800
706040
3
28.125.5
RMS
RMS
V
RMS
V
RMS
LAMP :
Life Time
Parameter Symbol
VBLOperating Voltage
IBLOperating Current
at 25 C
at 0 C
fBLOperating Frequency
TsDischarge Stabilization Time
PBLPower Consumption
50000
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.
NotesUnit
1, 2V
1mA
1, 3VsEstablished Starting Voltage
4kHz
1, 5Min
6Watt
1, 7Hrs
1. Specified values are for a single lamp.
2. Operating voltage is measured at 25 ± 2C. The variance of the voltage is ± 10%.
3. The voltage above V
should be applied to the lamps for more than 1 second for start-up.
S
(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 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
= VBLx IBLx N
BL
Lamp
)
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 condition of continuous operating at 25 ± 2C.
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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.
I p
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Product Specification
* Asymmetry rate:
|I
– I–p|/ I
p
x100%
rms
LM230WF1
Liquid Crystal Display
I -p
* Distortion rate
(or I–p)/ I
I
p
rms
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
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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
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LM230WF1
Liquid Crystal Display
Product Specification
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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
#1 #30
KDF71G-30S-1H
[ Figure 4 ] Connector diagram
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