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Approval Specification
Approval Specification
Customer : DELL / TPV
SAMSUNG TFT--
SAMSUNG TFT
SAMSUNG TFT-LCD
MODEL
MODEL
MODEL : LTM190BT02
Any Modification of Specification is not allowed without SEC's Permission.
NOTE : Spec for E1909WDD project
LCD
LCD
: LTM190BT02
: LTM190BT02
DATE : 22 / Jul / 2008
Customer’’
Customer
SIGNATURE
s Approval
s Approval
DATE
PREPARED BY
APPROVAED BY
DATE
22/Jul/’08
DATE
22/Jul/’08
Application Engineering part 1(HD), LCD Business
Samsung Electronics Co . , LTD.
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Contents
Revision History -------------------------------------------------------------------------------------- (3)
General Description --------------------------------------------------------------------------------- (4)
1. Absolute Maximum Ratings ------------------------------------------------------------------- (5)
2. Optical Characteristics --------------------------------------------------------------------------- (7)
3. Electrical Characteristics ---------------------------------------------------------------------- (15)
3.1 TFT LCD Module
3.2 Back Light Unit
4. Block Diagram ----------------------------------------------------------------------------------- (18)
4.1 TFT LCD Module
4.2 Back Light Unit
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5. Input Terminal Pin Assignment -------------------------------------------------------------- (19)
5.1 Input Signal & Power
5.2 Back Light Unit
6. Interface Timing --------------------------------------------------------------------------------- (30)
6.1 Safe Mode
6.2 Native Mode
6.3 Power ON/OFF Sequence
6.4 VDD Power Dip Condition
6.5 Kick off condition.
6.6 BIST Mode
6.7 LCM(Low Power Mode)
6.8 Error Mode
7. Outline Dimension ------------------------------------------------------------------------------- (31)
8. Reliability Test ------------------------------------------------------------------------------------ (33)
9. Packing -------------------------------------------------------------------------------------------- (34)
10. Marking & Others ------------------------------------------------------------------------------- (35)
11. General Precaution ---------------------------------------------------------------------------- (37)
11.1 Handling
11.2 Storage
11.3 Operation
11.4 Others
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* Revision History
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Approval Specification
Approval Specification
Date
2008
Rev.
No
SummaryPage
Approval specification of LTM190BT02 model was issued first.all000July 22,
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General Description
Description
LTM190BT02 is a color active matrix liquid crystal display (LCD) that uses amorphous
silicon TFT(Thin Film Transistor) as switching components. This model is composed of
a TFT LCD panel, a driver circuit and a back light unit. The resolution of a 19.0” is 1440
x 900 and this model can display up to 16.7 millions colors.
Features
High contrast ratio, high aperture structure
TN (Twisted Nematic) mode
Wide Viewing Angle
High speed response
WXGA+ (1440 x 900 pixels) resolution
Low power consumption
2 dual CCFLs (Cold Cathode Fluorescent Lamp)
DE (Data Enable) only mode
DP (Displayport) interface (1 lane)
Compact Size Design
RoHS compliance
TCO’03 compliance
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Approval Specification
Applications
Workstation & desktop monitors
Display terminals for AV application products
Monitors for industrial machine
* If the module is used to other applications besides the above, please contact SEC
in advance.
General Information
UnitSpecificationItems
mm0.2835(H) x 0.2835(W)Pixel Pitch
mm408.24(H) x 255.15(V)Active Display Area
Haze 25%, Hard-coating(3H)Surface Treatment
colors16.7M ( 6bit Hi-FRC )Display Colors
pixel1440 x 900Number of Pixels
RGB vertical stripePixel Arrangement
Normally WhiteDisplay Mode
16.8 Watt (Typ.)Power Consumption
Note
cd/༇300(Typ.)Luminance of White
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Mechanical Information
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Approval Specification
Approval Specification
Module
Max.
428.5
278.5
mm428.0427.5Horizontal (H)
mm278.0277.5Vertical (V) w/o inverter ass’y
NoteUnitTyp.Min.Item
size
17.5
2,550
mm--Depth (D)
LCD module onlyg--Weight
Note (1) Mechanical tolerance is · 0.5mm unless there is a special comment.
1. Absolute Maximum Ratings
If the condition exceeds maximum ratings, it can cause malfunction or unrecoverable
damage to the device.
Power Supply Voltage
Storage temperature
Glass surface temperature
(Operation)
Shock ( non - operating )
Vibration ( non - operating )
Note (1) Ta= 25 · 2 ¶C
DD
STG
OPR
nop
nop
NoteUnitMax.Min.SymbolItem
(1)V6.5GND-0.5V
60-25T
500T
(2)
(2)
(3)G50-S
(4)Grms1.5-V
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(2) Temperature and relative humidity range are shown in the figure below.
a. 90 % RH Max. (Ta ˺ 39 ¶C)
b. Maximum wet-bulb temperature at 39 ¶C or less. (Ta ˺ 39 ¶C)
c. No condensation
(3) 11ms, sine wave, one time for ·X, ·Y, ·Z axis
(4) 10-300 Hz, Sweep rate 10min, 30min for X,Y,Z axis
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(39,90)
(39,90)
(39,90)
(39,90)
Approval Specification
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(50,50.4)
(50,50.4)
(50,50.4)
(50,50.4)
25,5)
25,5)
((--25,5)
((--25,5)
Fig. Temperature and Relative humidity range
(60,27.7)
(60,27.7)
(60,27.7)
(60,27.7)
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2. Optical Characteristics
The optical characteristics should be measured in a dark room or equivalent.
Measuring equipment : TOPCON RD-80S,SPECTRORADIOMETER SR-3
(Ta = 25 · 2¶C, VDD=5V, fv= 60Hz, fDCLK=51.9MHz, IL = 6.5mArms)
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Approval Specification
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NoteUnitMax.Typ.Min.ConditionSymbolItem
Contrast Ratio
(Center of screen)
Response
Time
Luminance of White
(Center of screen)
Green
Color
Chromaticity
(CIE 1931)
White
Red
Blue
Red
-1000600C/R
105-Tr+ TfOn/Off
L
0.6700.6400.610Rx
0.3600.3290.300Ry
0.3300.3000.270Gx
0.6300.6000.570Gy
Normal
ɂ
ɂ
Viewing
Angle
0.1800.1500.120Bx
0.0900.0600.030By
0.3430.3130.283Wx
0.3590.3290.299Wy
-0.451-Ru'
-0.523-Rv'
msec
cd/m2-300250Y
(3)
SR-3
(5)
RD-850S
(6)
SR-3
(7),(8)
SR-3
-0.125-Gu'
Color
Chromaticity
(CIE 1976)
C.G.L
* C.G.L : Color Grayscale Linearity (continue to the next page)
Green
-0.563-Gv'
-0.175-Bu'
Blue
-0.158-Bv'
-0.198-Wu'
White
-0.468-Wv'
Ƹu'v'White
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(9)0.020.011-
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Approval Specification
Approval Specification
NoteUnitMax.Typ.Min.ConditionSymbolItem
%-72--Color Gamut
K-6500--Color Temperature
Gamma
Hor.
Viewing
Angle
Ver.
Brightness Uniformity
(9 Points)
Ƚ
ɂ
L
ɂ
R
ɂ
U
ɂ
D
uni
Note (1) Test Equipment Setup
The measurement should be executed in a stable, windless and dark room between
30min after lighting the back light at the given temperature for stabilization
of the back light. This should be measured in the center of screen.
Single lamp current : 7.5mA
Environment condition : Ta = 25 · 2 ¶C
CR˻10(5)
2.52.21.9
-80(89)70(80)
-80(89)70(80)
Degrees
-80(89)70(80)
-80(89)70(80)
%25--B
2--DSHACross Modulation
8--FFlicker
(8)
EZ-
Contrast
(4)
SR-3
(10)
SR-3
(11)
SR-3
Field Photo detector
1ദSR-3
TFT - LCD Module
Photo detector
Field
SR-3 : 50
RD-80S : 50
LCD Panel
The center of the screen
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B
G
Note (2) Definition of test point
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144 720 1296
Approval Specification
Approval Specification
Active Area
6
: Test Point
Note (3) Definition of Contrast Ratio (C/R)
: Ratio of gray max (Gmax) & gray min (Gmin) at the center point㽶 of the panel
G
CR
max
=
3 2 1
8 79
45
90
450
810
min
Gmax : Luminance with all pixels white
Gmin : Luminance with all pixels black
Note (4) Definition of 9 points brightness uniformity
Buni
BB
=×
(max min)
100
−
max
Bmax : Maximum brightness
Bmin : Minimum brightness
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Note (5) Definition of Response time
a. On/Off response time : Sum of Tr, Tf
Display Data White(TFT off) Black(TFT on) White(TFT off)
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Optical Instruments
Response
Note (6) Definition of Luminance of White : Luminance of white at center point㽶
Note (7) Definition of Color Chromaticity (CIE 1931, CIE1976)
Color coordinate of Red, Green, Blue & White at center point㽶
Note (8) Definition of Viewing Angle
: Viewing angle range (CR ı10,5)
100%
90%
10%
0%
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Note (9) Color Grayscale Linearity
a. Test image : 100% full white pattern with a test pattern as below
b. Test pattern : Squares, 40mm by 40mm in size, filled with 255, 225, 195, 165, 135 and
105 grays steps should be arranged at the centerྜྷ of the screen.
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c. Test method
st
-1
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 225 gray square into the center and measure both
luminance and coordinates, too.
d. Test evaluation
Δu' v'= (u' - u' ) + (v' - v' )
Where A, B : 2 gray levels found to have the largest color differences between them
i.e. get the largest ȟu’ and ȟv’ of each 6 pair of u’ and v’ and calculate the ȟu’v’.
AB
2
AB
2
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A
Note (10) Definition of Cross Modulation (Crosstalk : DSHA)
Crosstalk Modulation Ratio(D )
Where YA = luminance with moving a black bar,
YB = luminance without moving a black bar
- Measurement angle = 2¶Viewing angle, Measurement area = ɒ12༂
Background pattern (except black bar) includes gray 1 ~ 63
a. Measurement procedure of Horizontal Crosstalk
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YY
AB
SHA
=
Y
Approval Specification
Approval Specification
−
100 (%)
×
b. Measurement procedure of Vertical Crosstalk
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Note (11) Flicker level should be measured with 1 dot inversion pattern.
Definition of Flicker level
Flicker level = 1000 * (A-B)
where
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Approval Specification
where
where
a = Proportion Constant of Input brightness to BM-7 and output voltage (V*(༇/cd))
b = Standard voltage which is proposed to calculate the input voltage to DSA
(Dynamic signal analyzer) in DB scale
()
One maximum value of three estimated values of 5 points
Test pattern : For 1-dot inversion driving
(Grey levels of foreground dots on the test panel are G21, G31, G44)
Test point : 5 points of the display area
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a. test pattern : 1 dot inversion pattern
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Approval Specification
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b. test point
Active Area
: Test Point
144 720 1296
45
3
2 1
90
450
810
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3. Electrical Characteristics
3.1 TFT LCD Module
The connector for display data & timing signal should be connected.
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Approval Specification
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Ta = 25¶C
NoteUnitMax.Typ.Min.SymbolItem
Voltage of Power Supply
Current of
(a) Black
Power
Supply
Vsync Frequency
Hsync Frequency
Main Frequency
Rush Current
DD
I
DD
V
H
DCLK
RUSH
mA-1100-
mA-800-(b) White (3),(4)
mA15001300-(c) Dot
Hz60.456059.55f
kHz-55.47-f
MHz-88.75-f
Note (1) The ripple voltage should be controlled under 10% of VDD.
Note (2) Displayport interface characteristics should be based on VESA standard
(1)V5.55.04.5V
(2)DP V1.1Va(Rx/Tx)DPInterface Type
(5)A3.0--I
(3) fV=60Hz, fDCLK = 88.75MHz, VDD = 5.0V, DC Current.
(4) Power dissipation check pattern (LCD Module only)
a) Black Pattern b) White Pattern c) Dot Pattern
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3.2 Back Light Unit
The back light unit is an edge - lighting type with 2 dual CCFLs ( Cold Cathode
Fluorescent Lamp ) The characteristics of two dual lamps are shown in the following tables.
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Approval Specification
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Ta=25 · 2¶C
NoteUnitMax.Typ.Min.SymbolItem
Lamp Current
Lamp Voltage
Lamp Frequency
Inverter
waveform
Asymmetry
rate
Distortion
rate
L
L
L
Note (1) Specified values are for a single lamp.
Lamp current is measured with current meter for high frequency as shown below.
Refer to the following block diagram of the back light unit for more information.
HOT(RED)
COLD(WHITE)
HOT(BLUE)
COLD(GRAY)
I
1
A
I
2
A
LCD Module
HOT(RED)
COLD(WHITE)
HOT(BLUE)
COLD(GRAY)
I
3
A
I
4
A
(1)mArms8.06.53.0I
Vrms-726-V
(2)kHz60-45f
(3)Hour--50,000HrOperating Life Time
%10--Wasy
(4)
1.55541.4141.2726Wdis
--VsStartup Voltage
0 : 1,480
25: 1,170
(5)Vrms
INVERTER
(SK1700)
Fig. Measurement point of Lamp Current
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I
(2) Lamp frequency which may produce interference with horizontal synchronous
frequency may cause line flow on the display. Therefore lamp frequency should be
detached from the horizontal synchronous frequency and its harmonics as far as
possible in order to avoid interference.
(3) Life time (Hr) is defined as the time when brightness of a lamp unit itself becomes
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Approval Specification
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50% or less than its original value at the condition of Ta = 25·2¶C and I
(4) Designing a system inverter intended to have better display performance, power
efficiency and lamp reliability.
They would help increase the lamp lifetime and reduce leakage current.
a. The measurement should be done at typical lamp current.
b. The asymmetry rate of the inverter waveform should be less than 10%.
c. The distortion rate of the waveform should be ˲2 with ·10% tolerance.
- Inverter output waveform had better be more similar to ideal sine wave.
Asymmetry rate
p-p
||II
I
p
I
-p
Distortion rate
−
rms
I
p
||
I
or
rms
× 100
||
= 6.5mArms
L
I
-p
I
rms
Fig. Wave form of the inverter
(5) If an inverter has shutdown function, it should keep its output for over 1 second
even if the lamp connector is open. Otherwise the lamps may not be turned on.
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4. BLOCK DIAGRAM
4.1 TFT LCD Module
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EDID
Main Link
AUX CH
INV control
Key pad input
+5.0V
V
CN1
(30pin)
DD
4.2 Back Light Unit
Flash
memory
OSC
RSDS(Tx)
DP Timing Controller
Power
Circuit
RSDS
Control signal
Gamma
Generator
Source Driver ICs
S1 S1440
Control signal
Column Driver Circuit
TFT-LCD
(1440 x RGB x 900 pixels)
LAMP(CCFL)
LAMP(CCFL)
LAMP(CCFL)
LAMP(CCFL)
LAMP(CCFL)
LAMP(CCFL)
LAMP(CCFL)
LAMP(CCFL)
HOT(RED)
1
2
COLD(WHITE)
HOT(BLUE)
3
4
COLD(GRAY)
HOT(RED)
1
2
COLD(WHITE)
HOT(BLUE)
3
4
COLD(GRAY)
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5. Input Terminal Pin Assignment
5.1. Input Signal & Power ( Connector : P-TWO 187034-30091 or equivalent )
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10
11
12
13
14
15
In/OutSYMBOLPIN NO
1
2
3
4
5
6
7
8
9
V
DD
V
DD
V
DD
GND
GND
GND
In
-N/C
-N/C
GND
OutLPM
OutBKL On/Off
OutInverter Dim.
InKeypad
Out3.3V ref
GND3.3V GND
OutLED 1
* For LCD internal use only. Do not connect
* For LCD internal use only. Do not connect
High: Normal Operation Mode
Low : Power Saving Mode
Back Light On :3.3V, Off : 0V
Function
Power Supply : +5V
Power Ground
Low Power Mode
PWM Dimming
LBADC button detect
Keypad Ref Voltage
3.3V Keypad ref GND
LED1 control (Green)
Note
(2)
(3)
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
NC
NC
OutLED 2
GNDH_GND
-NC
-NC
GNDH_GND
InLane0 N
InLane0 P
GNDH_GND
In/OutAUX_CH P
In/OutAUX_CH N
GNDH_GND
OutHPD
-NC
* For LCD internal use only. Do not connect
* For LCD internal use only. Do not connect-
* For LCD internal use only. Do not connect-
LED2 control (Orange)
High speed Ground
High speed Ground
Negative Main link Lane 0
Positive Main link Lane 0
Signal Ground
Positive Auxiliary Channel
Negative Auxiliary Channel
Signal Ground
Hot Plug Detect
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Note 1) Pin number starts from Left side
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PCB
Pin No. 1 Pin No. 30
Approval Specification
Approval Specification
#1
#1
Fig. Connector diagram
a. All GND pins should be connected together and also be connected to the
LCD’s metal chassis.
b. All power input pins should be connected together.
c. All NC pins should be separated from other signal or power.
#30
#30
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Note 2) Brightness control
a. EDID Register Fields
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DescriptionVALUEFUNCTIONAddress
0000000000(service area) Dell P/N = XX71h
0000000000(service area) Manufacturer P/N = XX72h
Level 1B5hPWM ratio = 60.0 %73h
Level 2BChPWM ratio = 54.4 %74h
Level 3C4hPWM ratio = 48.0 %75h
Level 4CBhPWM ratio = 42.4 %76h
Level 5D3hPWM ratio = 36.0 %77h
Level 6DAhPWM ratio = 30.4 %78h
Level 7E1hPWM ratio = 24.8 %79h
Level 8E9hPWM ratio = 18.4 %7Ah
Level 9F0hPWM ratio = 12.8 %7Bh
Level 10F8hPWM ratio = 6.4 %7Ch
level 11, Max brightnessFFhPWM ratio = 0 %7Dh
Upon power up, the TCON will read the last brightness level value stored in the TCON.
Default brightness is Level 10.
Button presses or AUX CH requests establish the new setting.
b. Inverter PWM input requirements (Pin 11 output condition)
UNITSMAXTYPMINCONDITIONSPARAMETER
V0.8PWMI Input Low Voltage
V2.1PWMI Input High Voltage
mV300PWMI Input Hysteresis
PWMI Input Frequency
Range
-10099.5PWMI duty cycle = 100%
PWMI Brightness Setting
50.55049.5PWMI duty cycle = 50%
0.50-PWMI duty cycle= 0%
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µA0.3-0.3PWMI Input Bias Current
Hz4K210 100
%
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Note 3) Keypad control
a. Keypad circuit is defined by DDM
According to DDM spec. and VESA standard ,keypad circuit makes
“LEVEL Trigger” signal
b. Keypad input level and Function (Pin 12)
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Approval Specification
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FunctionKeypad : Input level(V)
Power On/Off2.49 · 0.1V
Brightness decrease (-) : Brightness Level n Î n-12.025 · 0.1V
Brightness Increase (+) : Brightness Level n Î n+11.65 · 0.1V
1.25 · 0.1V
Brightness decrease (-)
& Brightness Increase (+) : Diagnostic mode
Power On/Off & Brightness Increase (+) : Return to default Mode 1.42 · 0.1V
* REFERECNE : 3.3V (Pin 13)
** DETECTING DURATION ˻ 0.14s
c. Example of keypad design (Recommendation)
3.3V
R4
3.9k
Pin 12:Keypad
B1 B2 B3
power ( - ) ( + )
R1 R2 R3
12k 6.2k 3.9k
C1
ଖଖଖଖ B : Button
Pressing
Button 1
Pressing
Button 2
Pressing
Button 3
Keypad Voltage to DP T-CONSequence
R
4
RR
24
()
R
4
RR
34
()
33
33
V
.+×
V
.+×
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5.2 Back Light Unit
Upper
Lower
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FunctionColorInputPin No.
High VoltagePinkHot – 11
GroundWhiteCold – 12
High VoltageBlueHot – 23
GroundGrayCold – 24
High VoltagePinkHot – 11
GroundWhiteCold – 12
High VoltageBlueHot – 23
Connect
or
Part No.
GroundGrayCold – 24
Yeonho 35001HS-02L or equivalent
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6. Interface Timing Characteristics
Safe mode and Native mode are supported
6.1.1 Safe mode : 640x480@60Hz
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6.1.2 Safe mode : 800x600@60Hz
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6.2 Native mode : 1440x900@60Hz –Reduce Blanking
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6.3 Power ON/OFF Sequence
To prevent a latch-up or DC operation of the LCD Module, the power on/off
sequence should be as the diagram below.
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5V
Input power(5V)
Detecting duration
Power On Key
DP Link
Back Light On
T1
T2
T3
0V
3.3V
2.49V
3.3V
0V
RemarkMaxMin
Do not exceed rush current 3A.10ms300usT1
Transmission between T-CON & Graphic card
--T2
dependant.
It is recommended to set within 1 sec to avoid
garbage data
T-con setting value.1.5 sec1secT3
Detection duration-0.14 sec-
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6.4 VDD Power Dip Condition
V
DD
90%
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T
d
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80%
V
CC
GND
4.5V ˺ VDD˺ 5.5V
If V
(typ.) x 80% ˺ VCC˺ VDD(typ) x 90%
DD
Then, 0<Td ˺20msec
Note (1) The above conditions are for the glitch of the input voltage.
(2) For stable operation of an LCD Module power, please follow them.
i.e., if typ VDD x 80% ᆙ Vcc ᆙ typ VDD x 90%, then T
should be less than 20ms.
d
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6.5 Kick off condition
Based on Following diagram, the mode states switch.
*Green : LED 1 (Pin 15)
** Orange : LED 2(Pin 16)
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BIST
Green =
On
Orange = Off
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LowPwr
Green = Off
Orange =
Off
Green = Off
Orange = Off
Error
Green = Off
Orange =
blink
PWR Button ON:
DisplayPort
Main Link ac tive with
Invalid mode
PWR Button O N:
Display Port Main Link
active with valid
mode
Disconnect DP cabl e
On
Green =
On
Orange = Off
PWR Button ON:
DisplayPort Main Link
In-active
Connect DP cable
PWR Button ON/
Connect
AC power
PWR Button ON:
DisplayPort Main Link
active with valid
mode
PWR Button O FF/
Disconnect
AC power
6.6 BIST Mode
BIST mode will be activated when the DP cable is disconnected from PC
and the power up button activated
On
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6.7 LCM (Low Power Mode)
Low power mode (LowPwr) will be kicked off follow the following conditions:
1) Check AC power status
2) Receive MCCS command SET_POWER
3) Main link power down, wait 15sec and enter to the LowPwr (low power-down state)
4) Turn-on the LED2 ON
5). Turn off LCD Backlight
6.8 Error Mode
When LCD inputs detect abnormal (non-VESA standard timing),
LCD screen should display black.
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7. Outline Dimension
[ Refer to the next page ]
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8. Reliability Test
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SampleTime/CycleConditionsTest Items
12500 hrs50¶C , BiasHTOL*
5500 hrs0¶C , BiasLTOL*
5500 hrs40¶C / 95% , BiasTHB**
5500 hrs70¶C , No BiasHTS***
5500 hrs-20¶C , No BiasLTS***
5100 cycle-20¶C/30min ~ +60¶C/30min , No biasThermal Cycle
2 Box1 angle , 3 edge , 6 side , 76 cmBox Drop
Shock
(Non-operating)
Vibration
(Non-operating)
Non-
Operating
ESD 3· 8kV
Operating
Altitude
50G , 11msec
Sine wave , · x/y/z axis
1.47Grms , 5~200 Hz
· x/y/z axis , sweep rate : 10 min
Contact : 150pF, 330˟˟˟˟, 100point,
once/point
Air(non-contact) : 150pF, 330˟˟˟˟, 100point,
once/point
Thermal :-10~50ଇ, 15000ft(Operating),
40000ft(Non-operating)
Normal :45ଇ, 15000ft
8Hr
10Hr
[ Result Evaluation Criteria]
Under the display quality test conditions with normal operation state, these should
31 time/axis
330min/axis
3· 10kVCDM : 150pF, 330˟˟˟˟, 9point, 3 times/point
3· 15kV
3
3
be no change which may affect practical display functions.
* HTOL/ LTOL : High/Low Temperature Operating Life
** THB : Temperature Humidity Bias
*** HTS/LTS : High/Low Temperature Storage
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9. PACKING
9.1 CARTON (Internal Package)
(1) Packing Method
a. Without Inverter
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Packing Pallet Box
Cusion Foam(TOP)
Module ( 6 EA )
Cusion Foam(BOTTOM)
Packing Case
NOTE 1) TOTAL (Packing BOX) : Approx. 16.0༌
2) Acceptance number of piling : 4 Boxs
Pallet
Module : 72EA / Pallet
3) Packing Case size : 380(W) * 350(D) * 492(H)
4) Packing Pallet Box size : 1074(W) * 778(D) * 1008(H)
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10. MARKING & OTHERS
A nameplate bearing followed by is affixed to a shipped product at the specified
location on each product.
(1) Parts number : LTM190BT02
(2) Revision: Three letters
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(3) Lot number : X X X X XXX
Note (1) This code indicating year is omitted in the products of KIHENG site.
(4) Nameplate Indication
LTM190BT02
XX X
Cell Position No. (In the Glass)
Glass No. (In the one Lot)
Lot No. (Glass)
Month
Year (Note1)
Product code
Line
40mm
Part number
Week code : 05 02
80mm
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week
year
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(5) Packing box attach
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40mm
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LTM190BT02
80mm
(6) Others
a. After service part
Because of narrow bezel structure, lamp cannot be replaced.
Part number
Revision code
Box serial number
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11. General Precautions
11.1 Handling
(a) When the module is assembled, it should be attached to the system firmly
using all mounting holes. Be careful not to twist and bend the module.
(b) Because the inverter uses high voltages, it should be disconnected from power
source before it is assembled or disassembled.
(c) Refrain from strong mechanical shock and / or any force to the module.
In addition to damage, it may cause improper operation or damage to the module
and CCFT back light.
(d) Note that polarizer films are very fragile and could be damaged easily.
Do not press or scratch the surface harder than a HB pencil lead.
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(e) Wipe off water droplets or oil immediately. If you leave the droplets for a long
time, staining or discoloration may occur.
(f) If the surface of the polarizer is dirty, clean it using absorbent cotton or soft cloth.
(g) Desirable cleaners are water, IPA (Isopropyl Alcohol) or Hexane.
Do not use Ketone type materials (ex. Acetone), Ethyl alcohol, Toluene, Ethyl acid
or Methyl chloride. It might cause permanent damage to the polarizer due to chemical
reaction.
(h) If the liquid crystal material leaks from the panel, it should be kept away
from the eyes or mouth . In case of contact with hands, legs or clothes, it must
be washed away with soap thoroughly.
(i) Protect the Module from static, or the CMOS Gate Array IC would be damaged.
(j) Use finger-stalls with soft gloves in order to keep display clean during the
incoming inspection and assembly process.
(k) Do not disassemble the Module.
(l) Do not pull or fold the lamp wire.
(m) Do not adjust the variable resistor located on the Module.
(n) Protection film for polarizer on the Module should be slowly peeled off just before use
so that the electrostatic charge can be minimized.
(o) Pins of I/F connector should not be touched directly with bare hands.
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11.2 Storage
(a) Do not leave the Module in high temperature, and high humidity for a long time.
It is highly recommended to store the Module with temperature from 0 to 35
and relative humidity of less than 70%.
(b) Do not store the TFT-LCD Module in direct sunlight.
(c) The Module should be stored in a dark place. It is prohibited to apply sunlight or
fluorescent light in storing.
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11.3 Operation
(a) Do not connect or disconnect the Module in the "Power On" condition.
(b) Power supply should always be turned on/off by the item 6.3
"Power on/off sequence"
(c) Module has high frequency circuits. Sufficient suppression to the electromagnetic
interference should be done by system manufacturers. Grounding and shielding
methods may be important to minimize the interference.
(d) The cable between the back light connector and its inverter power supply should
be connected directly with a minimized length. A longer cable between
the back light and the inverter may cause lower luminance of lamp(CCFT) and
may require higher startup voltage(Vs).
11.4 Operation Condition Guide
(a) The LCD product should be operated under normal conditions.
Normal condition is defined as below;
- Temperature : 20·15
- Humidity : 65·20%
- Display pattern : continually changing pattern (Not stationary)
(b) If the product will be used in extreme conditions such as high temperature,
humidity, display patterns or operation time etc.., It is strongly recommended
to contact SEC for Application engineering advice. Otherwise, its reliability and
function may not be guaranteed. Extreme conditions are commonly found at
Airports, Transit Stations, Banks, Stock market, and Controlling systems.
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11.5 Others
(a) Ultra-violet ray filter is necessary for outdoor operation.
(b) Avoid condensation of water. It may result in improper operation or disconnection
of electrode.
(c) Do not exceed the absolute maximum rating value. ( supply voltage variation,
input voltage variation, variation in part contents and environmental temperature,
and so on)
Otherwise the Module may be damaged.
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(d) If the Module keeps displaying the same pattern for a long period of time,
the image may be "stuck" to the screen.
To avoid image sticking, it is recommended to use a screen saver.
(e) This Module has its circuitry PCB's on the rear side and should be handled
carefully in order not to be stressed.
(f) Please contact SEC in advance when you display the same pattern for a long time.
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