LG Display LC220WXE-TBA1 Specification
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LC220WXE
Product Specification
SPECIFICATION
FOR
APPROVAL
Title 22.0” WXGA TFT LCD
BUYER General
MODEL
APPROVED BY
/
/
SIGNATURE
DATE
SUPPLIER LG Display Co., Ltd.
*MODEL LC220WXE
SUFFIX TBA1
*When you obtain standard approval,
please use the above model name without suffix
APPROVED BY
J.H. Lee / Team Leader
REVIEWED BY
H.S. Song / Project Leader
SIGNATURE
DATE
PREPARED BY
/
Please return 1 copy for your confirmation with
your signature and comments.
Ver. 0.4
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LG Display Co., Ltd.
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Product Specification
Contents
Number ITEM Page
LC220WXE
COVER
CONTENTS
RECORD OF REVISIONS 3
1 GENERAL DESCRIPTION
2 ABSOLUTE MAXIMUM RATINGS
3 ELECTRICAL SPECIFICATIONS
3-1 ELECTRICAL CHARACTERISTICS
3-2 INTERFACE CONNECTIONS
3-3 SIGNAL TIMING SPECIFICATIONS
3-4 SIGNAL TIMING WAVEFORMS
3-5 COLOR INPUT DATA REFERENCE
3-6 POWER SEQUENCE
4 OPTICAL SPECIFICATIONS
5 MECHANICAL CHARACTERISTICS
1
2
4
5
6
6
8
10
12
13
14
16
20
6 RELIABILITY
7 INTERNATIONAL STANDARDS
7-1 SAFETY
7-2 EMC
8 PACKING
8-1 DESIGNATION OF LOT MARK
8-2 PACKING FORM
9 PRECAUTIONS
9-1 MOUNTING PRECAUTIONS 26
9-2 OPERATING PRECAUTIONS
9-3 ELECTROSTATIC DISCHARGE CONTROL 27
9-4 PRECAUTIONS FOR STRONG LIGHT EXPOSURE 27
9-5 STORAGE
9-6 HANDLING PRECAUTIONS FOR PROTECTION FILM 27
23
24
24
24
25
25
25
26
26
27
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Product Specification
Record of Revisions
Revision No. Revision Date Page Description
0.1 Jul. 03, 2008 - First Specification
0.2 Aug. 01, 2008 5 Deleted the B/L Input Voltage row
LC220WXE
7,8 Changed the Lamp Electrical Characteristics (Include V
10 Changed the backlight connector wire color (Refer to FIG.5)
15 Changed the CR Specification (Typ. : 800:1 ˧ 1000:1)
17 Updated the Gray Scale Specification
32,33 Updated the LVDS Input Characteristics
0.3 Aug. 18, 2008 21 Changed the Lamp wire dimension in Drawing
24 Updated the Packing form
30 Updated the ID Label Drawing
0.4 Sep. 02, 2008 7
15 Changed the Upper Viewing Angle Specification. (Typ. 75 ˧70)
Changed the Lamp Operating Current/Voltage.
(Current Max. 9mA˧8mA)
BL, PBL)
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LC220WXE
Product Specification
1. General Description
The LC220WXE 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 21.6 inch diagonally measured
active display area with WXGA resolution (768 vertical by 1366 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 luminance of the sub-pixel color
each dot, thus presenting a palette of more than 16.7M(6bit+A-FRC) colors.
It has been designed to apply the 8-bit 1 port LVDS interface.
It is intended to support LCD TV, PCTV where thin thickness, wide viewing angle, low power are critical factors
and fast response time are important.
is determined with a 8bit gray scale signal for
RGB
Source driver circuit
S1
LVDS
1port
+5V
VLCD
Gate Driver Circuit
Timing
controller
CN1
(30Pin)
Power circuit
block
G1
TFT-LCD Panel
(1366ÝRGBÝ768 pixels)
G768
CN2,3 (2pin)
Backlight assembly (4CCFLs)
CN4,5 (2pin)
General Features
Active Screen Size 21.6 inches(548.6mm) diagonal
Outline Dimension 501.0 mm(H) x 297.0 mm(V) x 17.3 mm(D) (Typ.)
Pixel Pitch 116.5༁ x 349.5༁ x RGB
Pixel Format 1366 horiz. by 768 vert. pixels RGB stripe arrangement
S1366
Color Depth 8-bit(D), 16.7 M colors
Luminance, White 350 cd/m2(Center 1 point Typ.)
Viewing Angle (CR>10) R/L 170(Typ.), U/D 155(Typ.)
Power Consumption Total 26.05 W (Typ.) (Logic= 2.05W, Back Light=24 W @ IBL=7.5mA)
Weight 2,300 g (Typ.)
Display Operating Mode Transmissive mode, Normally white
Surface Treatment Hard coating(3H), Anti-glare treatment of the front polarizer (Haze 25%)
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LC220WXE
Product Specification
2. Absolute Maximum Ratings
The following items are maximum values which, if exceeded, may cause faulty operation or damage to the
LCD module.
Table 1. ABSOLUTE MAXIMUM RATINGS
Parameter Symbol
Unit Remark
Min Max
Value
Power Input
Voltage
Operating Temperature TOP 0 +50 ¶C
Storage Temperature TST -20 +60 ¶C
Operating Ambient Humidity HOP 10 90 %RH
Storage Humidity HST 10 90 %RH
Note : 1. Temperature and relative humidity range
LCD circuit VLCD -0.3 +6.0 V [DC] GY\Gr YG¶j
are shown in the figure below.
Wet bulb temperature should be Max. 39 ¶C and no condensation of water.
2. Gravity mura can be guaranteed below 40 condition.
90%
Note 1
Ver. 0.4
Wet Bulb
Temperature [
10
0
10 20 30 40 50 60 70 800-20
Dry Bulb Temperature [
¶C]
20
30
40
¶C]
50
60
60%
40%
10%
Storage
Operation
Humidity [(%)RH]
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LC220WXE
Product Specification
3. Electrical Specifications
3-1. Electrical Characteristics
It requires two power inputs. One is employed to power for the LCD circuit. The other is used for the CCFL
backlight circuit.
Table 2. ELECTRICAL CHARACTERISTICS
Value
Parameter Symbol
Min Typ Max
MODULE :
Unit Note
Power Input Voltage VLCD
4.5 5.0 5.5
- 410 533
Power Input Current ILCD
- 500 650
Power Consumption PLCD
Rush current IRUSH
- 2.05 2.67
- - 3.0
Note :
1. The specified cur
rent and power consumption are under the V
whereas mosaic pattern(8 x 6) is displayed and f
is the frame frequency.
V
=5.0V, 25 r 2¶C, fV=60Hz condition
LCD
2. The current is specified at the maximum current pattern.
3. The duration of rush current is about 2ms and rising time of power Input is 0.5ms(min.).
White : 255 Gray
Black : 0 Gray
VDC
mA 1
mA 2
Watt 1
A 3
Mosaic Pattern(8 x 6)
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Table 3. Electrical characteristics
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LC220WXE
Product Specification
Parameter Symbol
Unit Notes
Min Typ Max
LAMP :
Values
Operating Voltage V
Operating Current I
BL
BL
780 800 960 V
3.0 7.5 8.0 mA
RMS
RMS
Established Starting Voltage Vs 1, 3
at 25 ¶C 1400 V
at 0 ¶C 1700 V
Operating Frequency f
Discharge Stabilization Time T
Power Consumption P
BL
BL
35 60 80 kHz 4
S
- - 3 Min 1, 5
24 26.4 Watt 6
RMS
RMS
Life Time 50,000 - Hrs 1, 7
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.
1, 2
1
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 r 2¶C. The variance of the voltage is r 10%.
3. The voltage above V
(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 interference with horizontal synchronous frequency. As a result, the may
cause beat on the display. Therefore, lamp frequency shall be away as much as possible from the horizontal
synchronous frequency and its harmonics range in order to prevent interference.
5. Let’s define the brightness of the lamp after being lighted for 5 minutes as 100%.
is the time required for the brightness of the center of the lamp to be not less than 95%.
T
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 condition of continuous operating at 25 r 2¶C.
should be applied to the lamps for more than 1 second for start-up.
S
= VBLx IBLx N
BL
Lamp
)
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Note :
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:
LC220WXE
I p
| I
–I –p| / I
p
rms
x 100%
* Distortion rate
I -p
I
(or I –p) / 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
rms
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LC220WXE
Product Specification
3-2. Interface Connections
This LCD employs two kinds of interface connections, a 30 pin connector is used for the module electronics and
2Pin / 2Pin Connectors are used for the integral backlight system.
3-2-1. LCD Module
- LCD Connector(CN1) : KDF71G-30S-1H(Hirose) or FI-X30SSL-HF(JAE)
- Mating Connector : : FI-X30C2L (Manufactured by JAE) or Equivalent
Table 4. MODULE CONNECTOR(CN1) PIN CONFIGURATION
Pin No. Symbol Description Note
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
NC No Connection
PWM_OUT Reference signal for inverter control
NC No Connection
GND Ground
RX0- LVDS Receiver Signal(-)
RX0+ LVDS Receiver Signal(+)
GND Ground
RX1- LVDS Receiver Signal(-)
RX1+ LVDS Receiver Signal(+)
nuk
RX2- LVDS Receiver Signal(-)
RX2+ LVDS Receiver Signal(+)
nuk
RXCLK- LVDS Receiver Clock Signal(-)
RXCLK+ LVDS Receiver Clock Signal(+)
nuk
RX3- LVDS Receiver Signal(-)
RX3+ LVDS Receiver Signal(+)
nuk
NC No Connection
NC No Connection
NC No Connection
GND Ground
GND Ground
GND Ground
VLCD Power Supply +5.0V
VLCD Power Supply +5.0V
VLCD Power Supply +5.0V
VLCD Power Supply +5.0V
VLCD Power Supply +5.0V
Ground
Ground
Ground
Ground
1
2
Notes: 1. Specific pin No. #1 is used for “No signal detection” of system signal interface.
It should be GND for NSB (No Signal Black) during the system interface signal is not.
If this pin is “H”, LCD Module displays AGP (Auto Generation Pattern).
2. Specific pin No. #2 (PWM_OUT) is a reference signal for inverter control.
This PWM signal is synchronized with vertical frequency.
Its frequency is 3 times of vertical frequency, and its duty ratio is 50%.
If the system don’t use this pin, do not connect.
3. All GND (Ground) pins should be connected together to the LCD module’s metal frame.
4. All V
(power input) pins should be connected together.
LCD
5. All Input levels of LVDS signals are based on the EIA 644 Standard.
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3-2-2. Backlight Module
The backlight interface connector is a model 35001HS-02LD manufactured by YEONHO.
The mating connector part number are 35001WR-02L(2pin) or equivalent.
The pin configuration for the connector is shown in the table below.
Table 5. Backlight connector pin configuration(CN2,CN3,CN4,CN5)
Pin Symbol Description Notes
1 HV High Voltage for Lamp 1
2 LV Low Voltage for Lamp 2
LC220WXE
Notes: 1. The high voltage power terminal is colored pink, sky blue.
2. The low voltage pin color is white, black.
FIG. 5 Backlight connector diagram
Up side
Lamp1
Lamp2
Down side
Lamp3
Lamp4
CN2
CN3
CN4
CN5
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LC220WXE
Product Specification
3-3. Signal Timing Specifications
Table 6 shows the signal timing required at the input of the LVDS transmitter. All of the interface signal
timings should be satisfied with the following specification for normal operation.
Table 6. TIMING TABLE for NTSC & PAL
[ DE (Data Enable) Only ]
ITEM Symbol Min Typ Max Unit Note
Period tCLK 12.5 13.8 15.8 ns
DCLK
Frequency - 63 72.4 80 MHz
HT 1456 1528 1920 tCLK
-
HFP 40 80 -
VT
tHP- tHV 162 tHP- tHV
776
(894)
790
(948)
1063
(1008)
KHz
t
HP
Hsync
Period t
Horizontal Valid tHV 1366 1366 1366 tCLK
Horizontal Blank
Frequency fH 45 47.4 50
Width tWH -32-tCLK
Horizontal Back Porch tHBP 24 48 -
Horizontal Front Porch t
Period t
Vsync
Note :
1. The input of H
If you use spread spectrum of EMI, add some additional clock to minimum value for clock margin.
2. The performance of the electro-optical characteristics may be influenced by variance of the vertical
refresh rate and the horizontal frequency
3. Timing should be set based on clock frequency.
Ver. 0.4
Vertical Valid tVV 768 768 768 tHP
Vertical Blank - tVP- tVV 22 tVP- tVV tHP
Frequency fV
Width t
Vertical Back Porch tVBP 5
Vertical Front Porch t
SYNC & VSYNC signal does not have an effect on normal operation(DE Only Mode).
WV -
VFP 1
57
(47)
60
(50)
5
(12)
15
(128)
2
(40)
63
(53)
-t
-Hz
-t
Hz
HP
HP
Note 1)
NTSC : 57~63Hz
(PAL : 47~53Hz)
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