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Samsung Secret
Product Information
DATE : 05. Apr. 2012
SAMSUNG TFT-LCD
MODEL : LTA460HN05-W
The Information Described in this Specification is Preliminary and can be changed without
prior notice
Samsung Display Co . , LTD.
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Contents
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
3.3 Inverter Input & Specification
4. Input Terminal Pin Assignment --------------------------------------------------------------------- (12)
4.1 Input Signal & Power
4.2 Converter Input Pin Configuration
4.3 Converter Input Power Sequence
4.4 LVDS Interface
4.5 Input Signals, Basic Display Colors and Gray Scale of Each Color
5. Interface Timing ---------------------------------------------------------------------------------------- (17)
5.1 Timing Parameters (DE mode)
5.2 Timing Diagrams of interface Signal (DE mode)
5.3 Power ON/OFF Sequence
6. Outline Dimension -------------------------------------------------------------------------------------- (20)
7. Packing --------------------------------------------------------------------------------------------------- (22)
8. Marking & Others --------------------------------------------------------------------------------------- (23)
9. General Precaution ------------------------------------------------------------------------------------- (24)
9.1 Handling
9.2 Storage
9.3 Operation
9.4 Operation Condition Guide
9.5 Others
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* Revision History
Date Rev. No Page Summary
5, Apr.
000 All First Issued.
2012
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General Description Samsung Secret
Description
LTA460HN05 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 46.0" is 1,920 x
1,080 and this model can display up to 1.07 Billion 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
SPVA(Super Patterned Vertical Align) mode
Wide viewing angle ( 178 )
High speed response
FHD resolution (16:9)
Low Power consumption
Edge Type LED (Light Emitting Diode) BLU
DE (Data Enable) mode
2ch LVDS (Low Voltage Differential Signaling) interface (2pixel/clock)
General Information
Items Specification Unit Note
1045.9(W) x 602.1(V) 1.0mm
Module Size mm
34.2 (Max) T/C~Converter
Weight 12,500 g Max
Pixel Pitch 0.53(H) x 0.53(V) mm
Active Display Area 1018.08(H) x 572.67(V) mm
Surface Treatment Haze 2 % - Anti Glare
Display Colors 1.07 Billion colors 8bit FRC
Number of Pixels 1,920 x 1,080 pixel
Pixel Arrangement RGB vertical stripe -
Display Mode Normally Black -
Luminance of White 350 (Typ.) cd/m2
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1. Absolute Maximum Ratings
If the condition exceeds maximum ratings, it can cause malfunction or unrecoverable
damage to the device.
(VDD=12V)
Item Symbol Min. Max. Unit Note
Power Supply Voltage VDD GND-0.3 16 V (1)
Storage temperature TSTG -20 60 (2)
Operation temperature TOPR 0 50 (2)
Shock ( non - operating ) Snop - 30 G (4)
Vibration ( non - operating ) Vnop - 1.5 G (5)
Note (1) Ta= 25 2 C
(2) Temperature and relative humidity range are shown in the figure below.
a. 90 % RH Max. (Ta 39 C)
b. Relative Humidity is 90% or less. (Ta > 39 C)
c. No condensation
(3) Although abnormal visual problems can be occurred in Tsur range,
the polarizer 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
Fig. Temperature and Relative humidity range
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2. Optical Characteristics Samsung Secret
The optical characteristics should be measured in a dark room or equivalent.
Measuring equipment : TOPCON RD-80S, TOPCON SR-3, ELDIM EZ-Contrast
(Ta = 25 2 C, VDD=12V, fv= 60Hz, fDCLK = 148.5 MHz, LED Current = 165 mA)
Item Symbol Condition Min. Typ. Max. Unit Note
Contrast Ratio (1)
C/R - 5000 -
(Center of screen) SR-3
Response (3)
G-to-G Tg - 10 16 msec
Time RD-80S
Luminance of White (4)
YL - 350 - cd/m2
(Center of screen) SR-3
Rx Normal 0.647
Red qL,R =0
Ry 0.334
qU,D =0
Gx 0.316
Green
Color Gy Viewing 0.595
TYP. TYP. (5),(6)
Chromaticity Angle
Bx -0.03 0.148 +0.03 SR-3
(CIE 1931)
Blue
By 0.059
Wx 0.280
White
Wy 0.290
Color Gamut - - 70 - % (5)
SR-3
Color Temperature - - 10,000 - K
qL 75 89 -
Hor.
Viewing qR 75 89 - (6)
C/R10 Degree
Angle qU 75 89 - EZ-Contrast
Ver.
qD 75 89 -
White Brightness
(2)
Uniformity Buni - - 30 %
SR-3
(9 Points)
- 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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Photo detector
Photo detector Field
SR-3 1
RD-80S 2 Field
SR-3 : 50
RD-80S : 50
EZ-Contrast:0
TFT - LCD Module
LCD Panel
The center of the screen
- Definition of test point
320 960 1600
180 Active Area
Test Point
540
900
Note (1) Definition of Contrast Ratio (C/R)
: Ratio of gray max (Gmax) & gray min (Gmin) at the center point of the panel
G max
C/R
G min
Gmax : Luminance with all pixels white
Gmin : Luminance with all pixels black
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Note (2) Definition of 9 points brightness uniformity (Test pattern : Full White)
( B max B min)
Buni 100
B max
Bmax : Maximum brightness
Bmin : Minimum brightness
Note (3) Definition of Response time : Sum of Tr, Tf
Display data Black (data off) White (data on) Black (data off)
TR TF
Optical Instruments
100%
Response
90%
10%
0%
TIME
G-to-G : Average response time between Gray to Gray (Scale)
Note (4) Definition of Luminance of White : Luminance of white at center point
Note (5) Definition of Color Chromaticity (CIE 1931)
Color coordinate of Red, Green, Blue & White at center point
Note (6) Definition of Viewing Angle
: Viewing angle range (C/R 10)
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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 VDD 10.8 12.0 13.2 V (1)
(a) Black - 279 - mA
Current of
Power (b) White IDD - 251 - mA (2),(3)
Supply
(c) Sub V-Stripe - 532 780 mA
Vsync Frequency fV 47 60 63 Hz
Hsync Frequency fH 50 67.5 75 kHz
Main Frequency fDCLK 130 148.5 160 MHz
Rush Current IRUSH - - 5 A (4)
Note (1) The ripple voltage should be controlled under 10% of VDD.
(2) fV= 60 Hz, fDCLK = 148.5 MHz, VDD = 12.0V, DC Current.
(3) Power dissipation check pattern (LCD Module only)
a) Black Pattern b) White Pattern c) Sub V-Stripe
(4) Measurement Conditions
VDD
100%
90%
10%
GND
TRUSH=470
Rush Current IRUSH can be measured when TRUSH. is 470 .
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3.2 Back Light Unit
The back light unit contains Edge type White LEDs (Light Emitting Diode)
Ta=25 2C
Control Board
LCD Module
Converter
Item Symbol Min. Typ. Max. Unit Note
Operating Life Time Hr - 30,000 - Hour (1),(2)
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 , For LED Package only. ]
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3.3 Converter Input Condition & Specification Samsung Secret
Specifications
Items Symbol Conditions Unit Note
Min. Typ. Max.
Input Voltage Vin - 22 24 26 V Ta=25 2 C
IRUSH (2D) Vin=24.0V
Input Current - - 4.8 A Note (1)
Dim = MAX
Output Vin=24.0V
IO (2D) 157 165 173 mA Note (2)
Current Dim = MAX
ON 2.4 - 5.5
Backlight
Vin=24.0 V V
On/Off
OFF -0.3 - 0.8
DEXT_DIM 1 - 100 %
External Dimming Vin=24.0V
FEXT_DIM 95 - 200 Hz Note(3)
Note (4)
High (ON) 2.4 - 5.5
External Dimming
VEXT_DIM V
Signal Level
Low (Off) -0.3 - 0.8
Note) Power Consumption is measured when 350 [cd/m ] of luminance which is the typical
luminance.
(1) All data is measured after 120min warm-up.
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4. Input Terminal Pin Assignment Samsung Secret
4.1. Input Signal & Power Connector :FI-RE51S-HF (JAE/UJU)
PIN No. Description PIN No. Description
1 VDD(12V) 26 RE[0]P
2 VDD(12V) 27 RE[1]N
3 VDD(12V) 28 RE[1]P
4 VDD(12V) 29 RE[2]N
5 VDD(12V) 30 RE[2]P
6 No Connection * Note (1) 31 GND
Even
7 GND 32 LVDS RE[CLK]N
Signal
8 GND 33 RE[CLK]P
9 GND 34 GND
10 RO[0]N 35 RE[3]N
11 RO[0]P 36 RE[3]P
12 RO[1]N 37 RE[4]N
13 RO[1]P 38 RE[4]P
14 RO[2]N 39 GND
15 RO[2]P 40 No Connection
16 Odd GND 41 No Connection
LVDS
17 Signal RO[CLK]N 42 No Connection
18 RO[CLK]P 43 No Connection
19 GND 44 No Connection
20 RO[3]N 45 LVDS Option *Note (2)
21 RO[3]P 46 No Connection
22 RO[4]N 47 No Connection
23 RO[4]P 48 No Connection
24 GND 49 No Connection
25 Even LVDS RE[0]N 50 No Connection
51 No Connection
Note)(1) No Connection: This PINS are only used for SAMSUNG internal using.
(2) LVDS OPTION : If this PIN : HIGH (3.3 V) Normal LVDS format
: LOW (GND) JEIDA LVDS format
SEQUENCE : On = VDD(T1) LVDS Option Interface Signal(T2)
OFF = Interface Signal(T3) LVDS Option VDD
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Vin T2 T3
LVDS
Option
LVDS
Signal
LVDS Option Sequence
Note(3) Pin number starts from Right side
PCB
Pin No. 1 Pin No. 51
#1 #51
connect name
#1 #51
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.
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4.2. Converter Input Pin Configuration Samsung Secret
Connector : Yeon-ho, 20022WR-14B1
Pin Configuration (FUNCTION)
Pin No.
Master
1 ~5 24 V
6~10 GND
11 No Connection
12 Backlight On /Off
13 No Connection
14 External PWM
4.3. Converter Input Power Sequence
Note) SEQUENCE : ON = Vin(24V) > Dimming Control Backlight On/Off
OFF = Backlight On/Off Dimming Control > Vin(24V)
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4.4 LVDS Interface
Samsung Secret
- LVDS Receiver : Tcon (merged)
- Data Format (JEIDA & Normal)
LVDS pin JEIDA -DATA Normal -DATA
TxIN/RxOUT0 R4 R0
TxIN/RxOUT1 R5 R1
TxIN/RxOUT2 R6 R2
TxOUT/RxIN0 TxIN/RxOUT3 R7 R3
TxIN/RxOUT4 R8 R4
TxIN/RxOUT6 R9 R5
TxIN/RxOUT7 G4 G0
TxIN/RxOUT8 G5 G1
TxIN/RxOUT9 G6 G2
TxIN/RxOUT12 G7 G3
TxOUT/RxIN1 TxIN/RxOUT13 G8 G4
TxIN/RxOUT14 G9 G5
TxIN/RxOUT15 B4 B0
TxIN/RxOUT18 B5 B1
TxIN/RxOUT19 B6 B2
TxIN/RxOUT20 B7 B3
TxIN/RxOUT21 B8 B4
TxOUT/RxIN2 TxIN/RxOUT22 B9 B5
TxIN/RxOUT24 HSYNC HSYNC
TxIN/RxOUT25 VSYNC VSYNC
TxIN/RxOUT26 DEN DEN
TxIN/RxOUT27 R2 R6
TxIN/RxOUT5 R3 R7
TxIN/RxOUT10 G2 G6
TxOUT/RxIN3 TxIN/RxOUT11 G3 G7
TxIN/RxOUT16 B2 B6
TxIN/RxOUT17 B3 B7
TxIN/RxOUT23 RESERVED RESERVED
TxIN/RxOUT28 R0 R8
TxIN/RxOUT29 R1 R9
TxIN/RxOUT30 G0 G8
TxOUT/RxIN4 TxIN/RxOUT31 G1 G9
TxIN/RxOUT32 B0 B8
TxIN/RxOUT33 B1 B9
TxIN/RxOUT34 RESERVED RESERVED
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4.5 Input Signals, Basic Display Colors and Gray Scale of Each Color
DATA SIGNAL
GRAY
DISPLAY
COLOR RED GREEN BLUE SCALE
(10bit)
LEVEL
R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 G0 G1 G2 G3 G4 G5 G6 G7 G8 G9 B0 B1 B2 B3 B4 B5 B6 B7 B8 B9
BLACK 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -
BLUE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 -
GREEN 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 -
CYAN 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 -
BASIC
COLOR
RED 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -
MAGENTA 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 -
YELLOW 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 -
WHITE 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 -
BLACK 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 R0
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 R1
DARK 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 R2
GRAY
: : : : : : : : : : : : : : : : : : : : : : : : : : : : : :
SCALE R3~
OF R1020
: : : : : : : : : : : : : : : : : : : : : : : : : : : : : :
RED
LIGHT 1 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 R1021
0 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 R1022
RED 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 R1023
BLACK 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G0
0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G1
DARK 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G2
GRAY
: : : : : : : : : : : : : : : : : : : : : : : : : : : : : :
SCALE G3~
OF G1020
: : : : : : : : : : : : : : : : : : : : : : : : : : : : : :
GREEN
LIGHT 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 G1021
0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 G1022
GREEN 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 G1023
BLACK 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 B0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 B1
DARK 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 B2
GRAY
: : : : : : : : : : : : : : : : : : : : : : : : : : : : : :
SCALE B3~
OF B1020
: : : : : : : : : : : : : : : : : : : : : : : : : : : : : :
BLUE
LIGHT 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 1 1 1 1 1 B1021
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 B1022
BLUE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 B1023
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
5.1 Timing Parameters ( DE mode )
SIGNAL ITEM SYMBOL MIN. TYP. MAX. Unit NOTE
Clock 1/TC 130 148.5 160 MHz -
Hsync Frequency FH 50.0 67.5 75.0 KHz -
Vsync FV 47.0 60.0 63.0 Hz -
Active
Display TVD - 1080 - Lines -
Vertical Period
Display Term
Vertical
TV 1092 1125 1380 Lines -
Total
Active
Display THD - 1920 - Clocks -
Horizontal Period
Display Term
Horizontal
TH 2090 2200 2350 clocks -
Total
Note) This product is DE mode. But the Hsync & Vsync signal must be inputted
(1) Test Point : TTL control signal and CLK at LVDS Tx input terminal in system
(2) Internal VDD = 3.3V
(3) Spread spectrum
- Modulation rate (max) : 1.5 %
- Modulation Frequency : 30~ 100KHz
5.2 LVDS Input Data Characteristics
ITEM SYMBOL Min. Typ. Max. UNIT NOTE
tRSRM - - 500 ps
Input Data
FIN=75MHz
Position
tRSLM -500 - - ps
Input common mode voltage VCM 0.55 - 1.8 V -
Differential Input Voltage |VID| 100 - - mV -
Note) When the skew is measured the Spread Spectrum should be 0%
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5.3 Timing diagrams of interface signal ( DE mode )
TV
TVD TVB
DE
TH
THD
DE
DCLK
TC
DATA
SIGNALS
TC
TCH TCL
DCLK 0.5
VCC
TDS TDH
DISPLAY 0.5
DATA
VCC
TES
DE 0.5
VCC
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5.4 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.
1. Packingt Box Material : KLB, AK, CK
3. 60g/Slica-Gel (6ea)
1Box / Pallet 1. Pallet weight = 7.8Kg
Pallet
(PE,W1270,L1150,H125) >. Pallet Material : HDPE
Packing Direction Vertical
Total Pallet Size H x V x height 1270 mm(H) x 1150 mm(V) x 788 mm(height)
Pallet (7.8kg) + Module (276kg)
Total Pallet Weight 309.34 kg
+ Packing-Box (24.1kg) + silica-gel(1.44Kg)
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8. MARKING & OTHERS
A nameplate bearing followed by is affixed to a shipped product at the specified
location on each product.
(1) Part number : LTA460HN05
(2) Revision: Three letters
(3) Lot number : X X X X XXX XX X
Cell Position No. (In the Glass)
Glass No. (In the one Lot)
Lot No. (Glass)
Month
Year (Note1)
Product code
Line
(4) Nameplate Indication
Week code : 11 29
week
LTA460HQ07
LTA460HN05 year
1009
1129 40mm
Revision code
Lot number
80mm
(5) Packing box attach
100mm
Part number
Box serial number
165mm
(6) Others
1. After service part
Lamps cannot be replaced because of the narrow bezel structure.
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9. General Precautions Samsung Secret
9.1 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 CCFT 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 disassemble shield case of inverter & LVDS board
(m) Do not connect N.C pins. (Samsung internal use only)
(n) 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
(o) Pins of I/F connector should not be touched directly with bare hands.
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9.2 Storage
Item Unit Min. Max.
Storage
( ) 5 40
Temperature
Storage Humidity (%rH) 35 75
Storage Life 6 Months
- The storage room should provide good ventilation and temperature
control.
- Products should not be placed on the floor, but on the Pallet away
from a wall.
- Prevent products from direct sunlight, moisture nor water; Be
Storage
cautious of a build up of condensation.
Condition
- Avoid other hazardous environment while storing goods.
- If products delivered or kept in conditions of over the storage period
of 3 months, the recommended temperature or humidity range,
we recommend you leave them at a temperature of 20 and a
humidity of 50% for 24 hours.
9.3 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(LED) and
may require higher startup voltage(Vs).
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9.4 Operation Condition Guide
(a) The LCD product should be operated under normal conditions.
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.
9.5 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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