CPT CLAA201WA04 Specification
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CPT TFT-LCD
CLAA 201WA 04
ACCEPTED BY：
APPROVED BY CHECKED BY PREPARED BY
Kevin Chen
Prepared by : Design General Division
CA.Chen
TFT-LCD Product
Planning Management
General Division
CHUNGHWA PICTUER TUBES, LTD.
No. 1, Huaying Rd., Sanho Tsun, Lungtan Shiang, Taoyuan, Taiwan, 325, R.O.C.
TEL: +886-3-4805678 FAX: +886-3-4800589
Doc. No: CLAA201WA04 -DDL- Ver.1 -2008/07/16 Issue Date: 2008/07/16
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CPT CHUNGHWA PICTURES TUBES, LTD.,
Modification Record List
NO. Issue Date Modification Index Modifier
1 2007/02/05 First edition for customer(warehouse code:000,011)
2 2007/11/22 Add 2’nd source (warehouse code:236/247)
Modify B/L operating current (Typ. 7.0mAÆ7.5mA)
Modify Lamp Voltage P5 & P9
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CPT CHUNGHWA PICTURES TUBES, LTD.,
1.OVERVIEW
CLAA201WA04 is 20.1”(51.11cm) color TFT-LCD (Thin Film Transistor Liquid Crystal Display)
module composed of LCD panel, LVDS driver ICs, control circuit and backlight(CCFL, 4 tubes). By
applying 8 bit digital data (6bits+Hi-FRC), 1680×1050, drived by 5 voltages,16.7M-color images are
displayed on the 20.1” diagonal screen. The module structure is fixed by iron frame,without the inverter
for the backlight. Interface of data and control signals is typ.General specification are summarized in the
following table:
ITEM SPECIFICATION
Display Area(mm)
Number of Pixels
Pixel Pitch(mm)
Color Pixel Arrangement RGB vertical stripe
Display Mode NormallyWhite, TN
Number of Colors 16.7M(6bits+Hi-FRC)
Brightness(cd/m^2) 300cd/m2 (Typ.)(center, 7.5mA)
Viewing Angle(H/V) 170/160 (Typ.)
Surface Treatment Anti-glare, 3H
Power consumption(W) 27.5(Typ.) (w/o Inverter)
Module Size(mm)
Module Weight(g) 3100(max)
Backlight Unit
433.44 (H) × 270.9 (V) (20.1-inch diagonal)
1680 (H) × 1050(V)
0.258(H) × 0.258(V)
459.4(W) × 296.4(H) ×16.6 (D) (Typ.)
CCFL, 4 tubes(top × 2/bottom × 2) , Edge light
2.ABSOLUTE MAXIMUM RATINGS
The following are maximun values which, if exceeded, may cause faulty operation or damage to the
unit.
ITEM SYMBOL MIN. MAX. UNIT Remark
Power Supply Voltage For LCD VCC
Lamp Voltage
Lamp Current
Lamp Frequency
Electrostatic Voltage
Operation Temperature (Surrounding)
Storage Temperature
Delayed Discharge Time
VL
ILO
FL
VESDt -200 200 V
VESDc -8000 8000 V
Top
Tstg
TD
0 6.5
765 940
3 8
40 80
0 50
-20 60
-- 1
V --
Vrms --
mArms *4). 7)
kHz --
*5)
℃ *1). 2). 3). 6)
℃ *1). 2). 3)
sec *8)
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CPT CHUNGHWA PICTURES TUBES, LTD.,
[Note]
*1) The relative temperature and humidity range are as below sketch, 90%RHMax. (Ta≦40℃)
*2) The maximum wet bulb temperature ≦39℃(Ta＞40℃) and without dewing.
*3) If you use the product in a environment which over the definition of temperature and humidity
too long to effect the result of eye-atching.
*4) Product life-time related to lamp current, pls operate the production follow statement at page 9
CN2, 4 (BACKLIGHT)
*5) The testing conditions are according to IEC 1000-4-2 specification：
VESDt：By using contact-mode to discharge each pin of the connector.
VESDc：By using contact-mode to discharge the module.
*6) If you operate the product in normal temperature range, the center surface of panel should be
under 60℃.
Humidity≦85%RH without condensation.
Relative Humidity ≦90% (Ta≦ 40℃)
Wet Bulb Temperature ≦39℃(Ta≧40℃)
*7) When lamp current over the definition of absolute maximun, product life-time will decay rapidly
or operate unusual. If lamp current is under 3.0mA, the lamp could be abnormal-starting.
If for special request testing,then the minimun value of current is 2mA.It is not to promise
product life-time and lighting in normally situation.
*8) Delayed discharge time test condition:
Starting lamp voltage = 1700 Vrms
Before test TD, lamp should operate at least 1min. , and lamp current should follow typical
lamp current specification. To place panel at room temp. (25+/- 2℃) below for 24hr, and then to
measure TD with the same starting lamp voltage in dark room.
Relative humidity(%RH
90
80
40
20
Operating Range
40,90
Storage Range
50.4
(60,27.7)
-20
0 20 40 60
Temperature(°C)
50
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CPT CHUNGHWA PICTURES TUBES, LTD.,
3. ELECTRICAL CHARACTERISTICS
(1).TFT-LCD
Ta=25℃
ITEM SYMBOL MIN TYP MAX UNIT REMARK
Power Supply Voltage for LCD
Power Supply Current for LCD
Permissive Ripple Voltage for Logic
Differential Resistance
VCC 4.5 5.0 5.5 V *1)
ICC -- 900 1500 mA *2)
VRP -- -- 100 mVp-p VCC=5.0V
Zm 90 100 110 Ω
The same motion input Voltage VCM
LVDS:
IN+，IN-
Differential input Voltage ｜VID｜
High electric potential threshold
voltage
Low electric potential threshold
voltage
LCDInrush Current
Power consumption
VTH
VTL
Inrush - - 3 A *4)
P - 4.5 7.5 W *2)
1.125 1.25 1.375 V
250 350 450 mV
- - 100 mV
-100 - - mV
[Note]
*1)Power、data sequence
0.5ms＜t1＜10ms t4＞200ms t7＞1sec
0＜t2＜50ms 0＜t5＜50ms
t3＞250ms 0.01ms＜t6＜10ms
4.5V
LCD Power Supply
Logic Signal
0.5V
Vin=5.0V
data
4.5V
0.5V
0.5V
*3)
T5
T6
Backlight Power Supply
t2
t1
VL
T3 T4
Data: RGB DATA, DCLK, DENA
T7
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CPT CHUNGHWA PICTURES TUBES, LTD.,
VCC-dip conditions:
(1) When 3.6V≦Vcc(min)<4.5V: td≦10 ms
(2) When Vcc <3.6 V,VCC-dip conditions should also follow the VCC-turn-on conditions.
VIN+ = Positive differential DATA & CLK Input
VIN- = Negative differential DATA & CLK Input
2). Typical value is measured when displaying horizontal gray scale line pattern:
64 gray level, 1680 line mode
VCC=5.0 V，f
=65 kHz，fV=60 Hz，f
H
=73.5 MHz
CLK
3).LVDS Signal definition:
VIN+：Positive differential DATA & CLK Input
VIN-： Negative differential DATA ＆ CLK Input
4).Irush Measurement Condition
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CPT CHUNGHWA PICTURES TUBES, LTD.,
(2). Backlight
1.Electrical specification
ITEM SYMBOL MIN TYP MAX UNIT REMARK
Lamp Voltage VL
Lamp Current(Standard) IL
Lamp Current(Operation) ILO
Lamp Power Consumption
(for reference)
Inverter Frequency FI
Starting Lamp Voltage VS
2.Lamp life time
WL
690 770 850
7.0 7.5 8.0
3.0 7.5 8.0
－
40
25
－
－ －
－ －
－
80
1600
1400
Vrms
mArms
mArms
W
kHz
Vrms
Vrms
IL=7.5mA
Ta=25℃
*1) Ta=25℃
*1) Ta=25℃
IL=7.5mA
Ta=25℃
*1) *2) Ta=25℃
*5) Ta=0℃
*5) Ta=25℃
ITEM IL at 3.0 mA IL at 7.5 mA IL at 8 mA UNIT REMARK
Lamp Life Time Min. 50,000 Min. 40,000 Min. 30,000 hr
Turn-on and Turn-off
Operation
[Note] Inverter vender : Sumida, model : IV50167/T
If the waveform of light up-driving is asymmetric, the distribution of mercury inside the lamp tube
will become unequally or will deplete the Ar gas in it. Then it may cause the abnormal
phenomenon of lighting-up. Therefore, designers have to try their best to fulfill the
conditions under the inverter designing-stage as below:
CPT Confidential
Continuous
Operation*3)
-- Min.100,000 -- time
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Continuous
Operation*4)
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CPT CHUNGHWA PICTURES TUBES, LTD.,
1) Lamp Current measurement method (The current meter is inserted in cold line)
CTL
A
CTH
CTL
A
CTH
LCD
Module
CTL
A
Power-
INVERTER
Supply
CTH
CTL
A
CTH
*2) a. Frequency in this range can make the characteristics of electric and optics maintain in
+/- 10% except color coordinates.
b. Frequency in 50~60kHz can make characteristics of electric and optics better.
c. Frequency in 45~75kHz won’t damage the lifetime and reliability of lamp.
d. Lamp frequency of inverter may produce interference with horizontal(or vertical)
synchronous frequency,and this may cause horizontal beat on the display.Therefore,
please adjust lamp frequency, and keep inverter as far from module as possible or use
electronic shielding between inverter and module to avoid the interference.
*3) Definition of the lamp life time：
a. Luminance (L) under 50% of specification.
b. Starting Lamp Voltage: over130% of the initial value. Ta=25℃
*4) The condition of Turn-on and Turn-off operation is as below:
a. Lamp current is 7.0mA
b. Frequency is 10 sec.(on)/10 sec.(off)
c. Repeat it for 100 thousand times
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