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Samsung Secret
Approval Spec
Customer : Wistron
SAMSUNG TFT-LCD
MODEL : LTA400HM19
Any Modification of Specification is not allowed without SEC's Permission.
NOTE :
DATE : 9. Dec. 2011
Customer˅s Approval
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DATE
hwwyv}hlkGi
wylwhylkGi
DATE
9. Dec. 2011
DATE
9. Dec. 2011
LCD Business
Samsung Electronics Co . , LTD.
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Contents
Samsung Secret
Revision History -------------------------------------------------------------------------------------------- (3)
General Description --------------------------------------------------------------------------------------- (4)
General Information --------------------------------------------------------------------------------------- (4)
1. Absolute Maximum Ratings -------------------------------------------------------------------------- (5)
2. Optical Characteristics --------------------------------------------------------------------------------- (6)
3. Electrical Characteristics ------------------------------------------------------------------------------- (9)
3.1 TFT LCD Module
3.2 Back Light Unit
4. Input Terminal Pin Assignment --------------------------------------------------------------------- (11)
4.1 Input Signal & Power
4.2 Input Signals, Basic Display Colors and Gray Scale of Each Color
5. Interface Timing ---------------------------------------------------------------------------------------- (14)
5.1 Timing Parameters (DE only mode)
5.2 LVDS Input data Characteristics
5.3 Timing Diagrams of interface Signal (DE only mode)
5.4 Power ON/OFF Sequence
6. Outline Dimension -------------------------------------------------------------------------------------- (20)
7. Reliability Test ------------------------------------------------------------------------------------------ (22)
8. Packing --------------------------------------------------------------------------------------------------- (23)
9. Marking & Others --------------------------------------------------------------------------------------- (24)
10. General Precaution ------------------------------------------------------------------------------------ (25)
10.1 Handling
10.2 Storage
10.3 Operation
10.4 Operation Condition Guide
10.5 Others
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Revision History
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Samsung Secret
Date
9. Dec.
2011
Rev.
No
000 All First issued
Page Summary
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General Description
Samsung Secret
Description
LTA400HM19 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 40.0“ is 1920 x 1080 and this model can
display up to 16.7 million colors with wide viewing angle of 89¶ or higher in all directions. This
panel is intended to support applications to provide a excellent performance for Flat Panel Display
such as Home-alone Multimedia TFT-LCD TV and High Definition TV
Features
RoHS compliance (Pb-free)
High contrast ratio & aperture ratio with wide color gamut
PVA (Patterned Vertical Align) mode
Wide viewing angle (·178¶)
High speed response
FHD resolution (16:9)
10 CCFLs B/L Unit(Cold Cathode Fluorescent Lamp)
DE (Data Enable) mode
mLVDS (mini Low Voltage Differential Signaling) interface (1pixel/clock)
General Information
Items Specification Unit Note
Module Size
Weight 9000(Max) g
Pixel Pitch
Active Display Area 885.6 (H) X 498.15 (V) mm
Surface Treatment Anti-Glare (Haze 2.3%)
Display Colors 8 bit – 16.7 M colors
Number of Pixels 1920 X 1080 pixel
Pixel Arrangement RGB Horizontal stripe
Display Mode Normally Black
952 (H) X 551 (V)
61.2 (D max)
0.46125 (H) Ý 0.46125 (V)
·1.0mm
mm
mm
Luminance of White 400 (Typ.) cd/m
2
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Samsung Secret
1. Absolute Maximum Ratings
If the condition exceeds maximum ratings, it can cause malfunction or unrecoverable
damage to the device.
Item Symbol Min. Max. Unit Note
Power Supply Voltage V
Storage temperature T
Operating temperature T
Surface temperature T
DD
STG
OPR
SUR
11 13 V (1)
-20 65
050
065
Shock ( non - operating ) X,Y,Z - 50 G (4)
Vibration ( non - operating ) V
Note (1) Ta= 25 · 2 ¶C
(2) Temperature and relative humidity range are shown in the figure below.
a. 93.8 % RH Max. (Ta ≤ 40 ¶C)
b. Relative Humidity is 93.8% or less. (Ta 40 ¶C)
c. No condensation
(3) Although abnormal visual problems can be occurred in T
is not damaged in this range.
(4) 11ms, sine wave, one time for ·X, ·Y, ·Z axis
(5) 10-300 Hz, Sweep rate 10min, 30min for X,Y,Z axis
NOP
-1.5G(5)
range, the polarizer
SUR
(2)
(3)
(40, 93.8)
(50, 50.4)
(65, 27.7)
Fig. Temperature and Relative humidity range
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2. Optical Characteristics
The optical characteristics should be measured in a dark room or equivalent.
Measuring equipment :
(Ta = 25 · 2¶C, VDD=12V, fv= 60Hz, f
Item Symbol Condition Min. Typ. Max. Unit Note
Contrast Ratio
(Center of screen)
Response
Time
(Using Wistron
SOC Board)
Luminance of White
(Center of screen)
G-to-G Tg
Red
TOPCON RD-80S, TOPCON SR-3, ELDIM EZ-Contrast
= 148.5MHz, Lamp Current = 14mA)
DCLK
C/R 2000 4000 -
- 8 - msec
Y
L
350 400 - cd/m
Normal
Rx
Ry 0.329
qL,R =0
qU,D =0
0.639
Samsung Secret
(1)
SR-3
(3)
RD-80S
2
(4)
SR-3
Color
Chromaticity
(CIE 1931)
Gx 0.296
Green
Gy 0.602
Bx 0.146
Blue
Viewing
Angle
TYP.
-0.03
TYP.
+0.03
By 0.061
Wx 0.280
White
Wy 0.285
Color Gamut - 69 72 - %
Color Temperature - - 10000 - K
79 89 -
79 89 -
79 89 -
79 89 -
Viewing
Angle
Hor.
Ver.
q
L
q
R
q
U
q
D
C/R≥10
White Brightness
Uniformity
B
uni
--25%
(9 Points)
Degree
(5),(6)
SR-3
(5)
SR-3
(6)
EZ-Contrast
(2)
SR-3
Gamma
-
1.7 2.2 2.7 SR-3
- Test Equipment Setup
The measurement should be executed in a stable, windless and dark room between
40min and 60min after lighting the back light at the given temperature for stabilization
of the back light. This should be measured in the center of screen.
Environment condition : Ta = 25 · 2 ¶C
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ྙ
ྚྛ
ྞ
ྡ
ྠ
ྜྷ ྜ
ྟ
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Samsung Secret
Photo detector Field
SR-3
RD-80S
TFT - LCD Module
2ദ
1ദ
- Definition of test point
Photo detector
Field
SR-3 : 50
RD-80S : 50
LCD Panel
The center of the screen
320 960 1600
180
540
900
Note (1) Definition of Contrast Ratio (C/R)
: Ratio of gray max (Gmax) & gray min (Gmin) at the center point 䐣 of the panel
G
CR
/
max
G
min
Gmax : Luminance with all pixels white
Gmin : Luminance with all pixels black
Active Area
Test Point
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Samsung Secret
Note (2) Definition of 9 points brightness uniformity (Test pattern : Full White )
Buni
BB
(max min)
100
B
max
Bmax : Maximum brightness
Bmin : Minimum brightness
Note (3) Definition of Response time : Sum of Tr, Tf
Display data
Optical Instruments
Response
100%
90%
10%
0%
Black (data off)
T
R
White (data on)
Black (data off)
T
F
TIME
Note (4) Definition of Luminance of White : Luminance of white at center point 䐣
Note (5) Definition of Color Chromaticity (CIE 1931)
Color coordinate of Red, Green, Blue & White at center point 䐣
Note (6) Definition of Viewing Angle
: Viewing angle range (C/R ≥10)
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Samsung Secret
3. Electrical Characteristics
3.1 TFT LCD Module
The connector for display data & timing signal should be connected.
Ta = 25¶C · 2 ¶C
Item Symbol Min. Typ. Max. Unit Note
Voltage of Power Supply V
(a) Black
Current of
(b) White - 550 900 mA
Power
Supply
(c) Mosaic - 600 900 mA
DD
I
DD
11.0 12.0 13.0 V (1)
- 550 900 mA
(d) Sub H-Stripe - 650 750 mA
Vsync Frequency f
Hsync Frequency f
Main Frequency f
Rush Current I
RUSH
V
H
DCLK
47 60 63 Hz
50 67.5 73 kHz
130 148.5 155 MHz
--5A(4)
Note (1) The ripple voltage should be controlled under 10% of VDD.
(2) fV=60Hz, fDCLK = 148.5MHz, V
= 12.0V, DC Current.
DD
(3) Power dissipation check pattern (LCD Module only)
a) Black Pattern b) White Pattern c) Mosaic d)Sub H-Stripe
(2),(3)
(4) Measurement Conditions
V
100%
DD
90%
10%
GND
Rush Current I
T
can be measured when T
RUSH
RUSH
=470༕
. is 470༕.
RUSH
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Samsung Secret
3.2 Back Light Unit
The back light unit contains 10 direct-lighting type CCFLs ( Cold Cathode Fluorescent
Lamp ). The characteristics of lamps are shown in the following tables.
Ta=2 5 · 2¶C
Socket
Socket 1
Socket 2
Cold 1
Cold 2
LCD
Module
Socket 9
Socket 10
Item Symbol Min. Typ. Max. Unit Note
Lamp Current I
L 6.0 14.0 15.0 mArms (2)
Cold 9
Cold 10
0: 1500
Starting Up Voltage Es - -
25:1370
Frequency fr 30 62.5 80 kHz
Operating Life Time Hr 50,000 - - Hour (1)
Note (1) It is defined as the time to take until the brightness reduces to 50% of its original value.
[Operating condition : Ta = 25·2, I
(2) In condition of Inverter hot
(3) The voltage over the starting up voltage should be input the lamp less than a second.
If not, the lamp could not be turn on.
= 14.0mA , For single lamp only. ]
L
Vrms (3)
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4. Input Terminal Pin Assignment
Samsung Secret
4.1. Input Signal & Power Connector : PF050-O68B-C20-S(UJU)
No Signal Description No Signal Description
1 GND Ground 35 LVCLKN_A mLVDS Clock +
2 GND Ground 36 LVCLKP_A mLVDS Clock -
3 N.C No Connection 37 GND Ground
4 VIN DC power supply 38 LV3N_A mLVDS Signal +
5 VIN DC power supply 39 LV3P_A mLVDS Signal -
6 VIN DC power supply 40 GND Ground
7 VIN DC power supply 41 LV2N_A mLVDS Signal +
8 VIN DC power supply 42 LV2P_A mLVDS Signal -
9 VIN DC power supply 43 GND Ground
10 N.C No Connection 44 LV1N_A mLVDS Signal +
11 SDA_ROM I2C SDA(ROM) 45 LV1P_A mLVDS Signal -
12 SCL_ROM I2C SCL(ROM) 46 GND Ground
13 WPN Inverted WP 47 LV6N_B mLVDS Signal +
14 WP I2C WP 48 LV6P_B mLVDS Signal -
15 N.C I2C SDA 49 GND Ground
16 N.C I2C SCL 50 LV5N_B mLVDS Signal +
17 N.C No Connection 51 LV5P_B mLVDS Signal -
18 CPV1 Gate Signal #1 52 GND Ground
19 CPV2 Gate Signal #1 53 LV4N_B mLVDS Signal +
20 CPV3 Gate Signal #1 54 LV4P_B mLVDS Signal -
21 N.C No Connection 55 GND Ground
22 STV Vsync Start 56 LVCLKN_B mLVDS Clock +
23 TP 57 LVCLKP_B mLVDS Clock -
24 POL 58 GND Ground
25 GND Ground 59 LV3N_B mLVDS Signal +
26 LV6N_A mLVDS Signal + 60 LV3P_B mLVDS Signal -
27 LV6P_A mLVDS Signal - 61 GND Ground
28 GND Ground 62 LV2N_B mLVDS Signal +
29 LV5N_A mLVDS Signal + 63 LV2P_B mLVDS Signal -
30 LV5P_A mLVDS Signal - 64 GND Ground
31 GND Ground 65 LV1N_B mLVDS Signal +
32 LV4N_A mLVDS Signal + 66 LV1P_B mLVDS Signal -
33 LV4P_A mLVDS Signal - 67 GND Ground
34 GND Ground 68 GND Ground
Note(1) No Connection: This PINS are only used ONLY for SAMSUNG.
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Note(3) Pin number starts from Left side
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Samsung Secret
S-PCB
Pin No. 1 Pin No. 68
#1
#1 #68
#68
Fig. Connector diagram
a. Power GND pins should be connected to the LCD’s metal chassis.
b. All power input pins should be connected together.
c. All NC pin should be separated from other signal or power.
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Samsung Secret
4.2 Input Signals, Basic Display Colors and Gray Scale of Each Color
COLOR
BASIC
COLOR
GRAY
SCALE
OF
RED
DATA SIGNAL
DISPLAY
(8bit)
R0 R1 R2 R3 R4 R5 R6 R7 G0 G1 G2 G3 G4 G5 G6 G7 B0 B1 B2 B3 B4 B5 B6 B7
BLACK 000000000000000000000000 -
BLUE 000000000000000011111111 -
GREEN 000000001111111100000000 -
CYAN 000000001111111111111111 -
RED 111111110000000000000000 -
MAGENTA111111110000000011111111 -
YELLOW 111111111111111100000000 -
WHITE 111111111111111111111111 -
BLACK 000000000000000000000000 R0
100000000000000000000000 R1
DARK
↑
↓
LIGHT
010000000000000000000000 R2
:::::: :::::: ::::::
:::::: :::::: ::::::
101111110000000000000000 R253
011111110000000000000000 R254
RED GREEN BLUE
GRAY
SCALE
LEVEL
R3~
R252
GRAY
SCALE
OF
GREEN
GRAY
SCALE
OF
BLUE
RED 111111110000000000000000 R255
BLACK 000000000000000000000000 G0
000000001000000000000000 G1
DARK
↑
↓
LIGHT
GREEN 000000001111111100000000 G255
BLACK 000000000000000000000000 B0
DARK
↑
↓
LIGHT
BLUE 000000000000000011111111 B255
000000000100000000000000 G2
:::::: :::::: ::::::
:::::: :::::: ::::::
000000001011111100000000 G253
000000000111111100000000 G254
000000000000000010000000 B1
000000000000000001000000 B2
:::::: :::::: ::::::
:::::: :::::: ::::::
000000000000000010111111 B253
000000000000000001111111 B254
G3~
G252
B3~
B252
Note) Definition of Gray :
Rn : Red Gray, Gn : Green Gray, Bn : Blue Gray (n = Gray level)
Input Signal : 0 = Low level voltage, 1 = High level voltage
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5. Interface Timing
Samsung Secret
5.1 Timing Parameters ( DE mode )
SIGNAL ITEM SYMBOL MIN. TYP. MAX. Unit NOTE
Clock
Hsync F
Frequency
Vsync F
Active
Display
Vertical
Period
Display Term
Vertical
Total
Active
Display
Horizontal
Period
Display Term
Horizontal
Total
1/T
T
T
T
T
H
V
VD
V
HD
H
C
130 148.5 155 MHz -
50 67.5 73 KHz -
47 60 63 Hz -
- 1080 - Lines -
1100 1125 1480 Lines -
- 1920 - Clocks -
2154 2200 2300 clocks -
Note) This product is DE mode. But the Hsync & Vsync signal must be inputted
(1) Test Point : TTL control signal and CLK at mLVDS Tx input terminal in system
(2) Internal VDD = 3.3V
(3) Spread spectrum
- Modulation rate (max) : · 2.5 %
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VID(Single ended
V
0.3+(VID/2)
(VDD-1.2)
VID/2
V
Clock pulse width
PWCLK
4
-
-
ns
Clock pulse high
PWCLK(H)
-
-
ns
Clock pulse low
PWCLK(L)
-
-
ns
Setup/Hold time
tSETUP1/
tHOLD1
0.69 / 0.69
-
-
ns
Reset High Period
PWRST
3
-
-
clk
CLK1 high pulse
tPWCLK1
-
-
us
Setup/Hold
tPOL-CLK1 /
tCLK1
POL
-
-
ns
CLK1 to RST inpu
tCLK1-RST
-
-
ns
Reset low to CLK
time
tRST-CLK1
0
-
-
ns
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5.2 mini-LVDS Input Data Characteristics
ITEM SYMBOL MIN. TYP. MAX. Unit NOTE
Samsung Secret
voltage)
Vcm VI
period
Period
CLK-Data
width
Pol
Time
VID 0.2 0.6
-
1.52
1.52
0.2
-
5/6
-
-
-
-
-
-
-
t time
1 Rising
200
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Samsung Secret
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5.3 I2C Signal In/Out Sequence
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Samsung Secret
T1 ≤ 100msec (Recommend)
300msec ≤ T2 ≤ 600msec
(Recommend)
Note (1) SCL_ROM, SDA_ROM, WP(=WPN) signal is 3.3V I2C digital signal to operate
power IC of module.
(2) Panel On time is delayed as T1 timing is longer, this can be different according to
AD board of set.
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5.4 Timing diagrams of interface signal ( DE mode )
TV
TVD
DE
TH
THD
DE
Samsung Secret
TVB
DCLK
DATA
SIGNALS
DCLK
DISPLAY
DATA
TC
TCH
TDS TDH
TCL
TC
0.5
V
0.5
V
CC
CC
TES
DE
0.5
V
CC
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5.5 Power ON/OFF Sequence
Samsung Secret
To prevent a latch-up or DC operation of the LCD Module, the power on/off
sequence should be as the diagram below.
0.47msec<T1≤30msec
0msec<T2≤1800msec
(Recommend Value)
0<T3≤50msec
(Recommend Value)
1000msec≤T4
700msec≤T5
(Recommend Value)
100msec≤T6
(Recommend Value)
T1 : VDDrising time from 10% to 90%
T2 : The time from V
T3 : The time from valid data off to V
T4 : V
off time for Windows restart
DD
to valid data at power ON.
DD
off at power Off.
DD
T5 : The time from valid data to B/L enable at power ON.
T6 : The time from valid data off to B/L disable at power Off.
The supply voltage of the external system for the Module input should be the same
as the definition of V
DD
.
Apply the lamp voltage within the LCD operation range. When the back light turns on
before the LCD operation or the LCD turns off before the back light turns off,
the display may momentarily show abnormal screen.
In case of V
= off level,
DD
please keep the level of input signals low or keep a high impedance.
T4 should be measured after the Module has been fully discharged between power off
and on period.
Interface signal should not be kept at high impedance when the power is on.
In Case T5 is less than 1000msec and T6 is less than 100msec,
Garbage Display can be seen. (It is not related to electrical function issue, Just for
recommendation to prevent Garbage Display )
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7. Reliability Test
Item Test condition Quantity
TSS
HTOL
LTOL
HTS
LTS
THB
TS
ESD
(non-operation)
ESD(operation)
non-contact : ᇹ20 kV, 150Ꮔ/100Ω, 210Point, 1 time/Point
-20 ~ 65, 440cycle determination
50, 500hr determination
-5, 500hr determination
70, 250hr determination
-25, 250hr determination
50 / 90%RH, 250hr determination
-20 30min ~ 60 30min, 100cycle determination
C D M : ᇹ10 kV, 150Ꮔ/330 Ω, 9Point, 3times/Point
contact : ᇹ10 kV, 150Ꮔ/330Ω, 210Point, 1 time/Point
Samsung Secret
4EA
4EA
4EA
4EA
4EA
4EA
4EA
3EA
3EA
POWER
ON/OFF
Vibration 10 ~ 300Hz/1.5G/10minSR, XYZ, 30min/axis 3EA
Shock
PALLET
Vibration
PALLET Drop 20cm, Bottom, Front, Rear 1times 1PALLET
30sec (on) / 30sec(off) : 12,000 times 4EA
Half Sine, 50G, 11msec, ᇹXYZ 1time/axis
1.05Grms, 5-200Hz, Random, z-axis, 2Hr 1PALLET
3EA
[ Result Evaluation Criteria]
Under the display quality test conditions with normal operation state, these should
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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8. PACKING
8.1 CARTON (Internal Package)
(1) Packing Form
Corrugated fiberboard box and corrugated cardboard as shock absorber
(2) Packing Method
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Samsung Secret
8.2 Packing Specification
Item Specification Remark
11ea /Box
LCD Packing
(Packing Pallet
Box)
Pallet 1Box / Pallet 1. Pallet weight = 8 kg
Packing Direction Vertical
Total Pallet Size H x V x height 1150mm(H) x 985mm(V) x 719mm(height)
Total Pallet
Weight
124kg
- 88kg/LCD(11ea)
- 20kg /Packing-Pallet Box(1ea)
- Packing Material :Paper
Module (88kg ) + Pallet(8kg) + PackingPallet Box(20kg)
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Samsung Secret
9. MARKING & OTHERS
A nameplate bearing followed by is affixed to a shipped product at the specified
location on each product.
(1) Part number : LTA400HM19
(2) Revision: Three letters
(3) Lot number : X X X X XXX
(4) Nameplate Indication
XX X
Cell Position No. (In the Glass)
Glass No. (In the one Lot)
Lot No. (Glass)
Month
Year (Note1)
Product code
Line
T
C
LTA400HM19
1005
[[[[
(5) Packing box attach
[[[[[[[[[[ [[[
OWD733KP4<
Week code : 09 25
week
year
40mm
Revision code
Lot number
80mm
100mm
Part number
[[[
44
Box serial number
165mm
(6) Others
1. After service part
Lamps cannot be replaced because of the narrow bezel structure.
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10. General Precautions
Samsung Secret
10.1 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 use high voltage, it should be disconnected from power
before it is assembled or disassembled.
(c) Refrain from strong mechanical shock and / or any force to the Module.
In addition to damage, this may cause improper operation or damage to the Module
and CCFL back light.
(d) Note that polarizers are very fragile and could be damage easily.
Do not press or scratch the surface harder than a HB pencil lead.
(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 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 Electrostatic discharge. Otherwise the ASIC IC or
semiconductor 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 connect N.C pins. (Samsung internal use only)
(m) Protection film for polarizer on the Module should be slowly peeled off just before use
so that the electrostatic charge can be minimized. Must put on antistatic glove while
handling a module
(n) Pins of I/F connector should not be touched directly with bare hands.
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UNIT
(
5
(%rH)
-
and
temperature
-
the
Pallet
nor
water
storing
goods
-
the
storage
recommended
temperature
you
leave
of
50
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10.2 Storage
We highly recommend to comply with the criteria in the table below.
Samsung Secret
ITEM
Storage Temperature
Storage Humidity
)
Min. Max.
35 75
Storage Life 12 months
The storage room should provide good ventilation
control.
Products should not be placed on the floor, but on
away from a wall.
- Prevent products from direct sunlight, moisture
; Be cautious of a build up of condensation.
Storage Condition
- Avoid other hazardous environment while
.
If products delivered or kept in conditions of over
period of 3 months, the
or humidity range, we recommend
them at a temperature of 20 and a humidity
% for 24 hours.
40
10.3 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 "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).
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10.4 Operation Condition Guide
(a
) The LCD product should be operated under normal conditions.
Samsung Secret
Normal condition is defined as below;
- Temperature : 20·15
- Humidity : 55·20%
- 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.
10.5 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.
(d) If the Module keeps displaying the same pattern for a long period of time,
the image may be "sticked" 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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