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SAMSUNG TFT-LCD
MODEL : LTA400HM23
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Samsung Secret
Product Information
DATE : 04. July. 2012
The information described in this specification is preliminary and can be changed without
prior notice
Samsung Display Co . , LTD.
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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 part
3.2 Back light unit part
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Samsung Secret
Contents
4. Input terminal pin assignment --------------------------------------------------------------------- (12)
4.1 Input signal & power
4.2 LED Bar connector
4.3 LVDS interface
4.4 Input signals, basic display colors and gray scale of each color
5. Interface timing ---------------------------------------------------------------------------------------- (17)
5.1 Timing parameters
5.2 LVDS Input data characteristics
5.3 3D mode sequence
5.4 Timing diagrams of interface signal
5.5 Power ON/OFF sequence
6. Outline dimension ------------------------------------------------------------------------------------- (20)
7. Packing -------------------------------------------------------------------------------------------------- (22)
8.1 Carton (Internal package)
8.2 Packing specification
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
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Samsung Secret
04. July.
2012
000 All First Issued
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General Description
Samsung Secret
Description
LTA400HM23 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 16.7million colors with
wide viewing angle of 178¶ 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 TFTLCD 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 (typ.178¶)
High speed response
HD resolution (16:9)
Low Power consumption
Direct Type LED (Light Emitted Diode) BLU
DE (Data Enable) mode
2ch LVDS (Low Voltage Differential Signaling) interface (2pixel/clock)
General Information
Items Specification Unit Note
914.4 (H
Module Size
Weight 6200 (Typ.) g
Pixel Pitch 0.46125(H) x 0.15375(W) mm
Active Display Area 885.6 (H) x 498.15 (V) mm
Surface Treatment Anti-Glare Haze 5.5%, Hard coating (2H) -
Display Colors 8 bit – 16.7 M color
Number of Pixels 1920 x 1080 pixel
Pixel Arrangement RGB Horizontal stripe
Display Mode Normally Black
Luminance of White 300 (Typ.) cd/m
) x 530.6 (V
Typ
37 (D
Max
)
Typ
)
·1.0mm
mm
2
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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
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Samsung Secret
Power Supply Voltage V
Storage temperature T
Operating temperature T
DD
STG
OPR
GND-0.3 13.2 V (1)
-20 60
050
Shock ( non - operating ) X,Y,Z - 50 G (3)
Vibration ( non - operating ) V
NOP
- 1.5 G (4)
Note (1) Ta= 25 · 2 ¶C
(2) Temperature and relative humidity range are shown in the figure below.
a. Ta ≤ 39 ¶C , Relative Humidity is max 90 %
b. Ta 39 ¶C , Relative Humidity is less than 90%
c. No condensation
(2)
Fig. Temperature and Relative humidity range
(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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2. Optical Characteristics
Samsung Secret
The optical characteristics should be measured in a dark room or equivalent condition.
Measuring equipment ( ) : equipment maker
:
BM-7(TOPCON), PR-650(Photo Research), SR3(TOP CON )
(Ta = 25 · 2¶C, VDD=12V, fv= 60Hz, f
Item Symbol Condition Min. Typ. Max. Unit Note
Contrast Ratio
(Center of screen)
Response
G-to-G
Time
Luminance of White
(Center of screen)
Color
Green
Chromaticity
(CIE 1931)
(2D)
Red
Blue
C/R - 5000 -
Tg
Y
L
Rx
Ry 0.338
Normal
θL,R =0
- 8 20 msec
260 300 - cd/m
θU,D =0
Gx 0.312
Gy 0.616
Bx 0.150
Viewing
Angle
TYP.
-0.03
By 0.054
= 148.5 MHz, If = 400mA, Dim.duty 100%)
DCLK
BM-7, RD-80S
2
0.640
TYP.
-0.03
(1)
SR-3
(3)
(4)
SR-3
(5),(6)
PR650,
SR-3
Center
Point
White
Wx 0.275
Wy 0.285
Color Gamut - - 70 - %
Color Temperature - - 11,000 - K
Typ.
Viewing
Angle
Hor.
Ver.
θ
L
θ
R
θ
U
θ
D
C/R≥10
75 89 -
75 89 -
Degree
75 89 -
75 89 -
White Brightness
Uniformity
B
uni
--30%
(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.
(5)
SR-3
(6)
EZ-Contrast
(2)
SR-3
Environment condition : Ta = 25 · 2 ¶C
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ྙ
ྚྛ
ྞ
ྡ
ྠ
ྜྷ ྜ
ྟ
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Samsung Secret
Photo
detector
SR-3
RD-80S
TFT - LCD Module
Field
1ദ
2ദ
- Definition of test point
320 960 1600
Photo detector
Field
D : 50
LCD Panel
The center of the screen
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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Note (2) Definition of 9 points brightness uniformity (Test pattern : Full White )
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Buni
BB
(max min)
100
B
max
Bmax : Maximum brightness
Bmin : Minimum brightness
Note (3) Definition of Response time : Average of T
(data is 8 x 8 Gray table, excluding 0 to 255Gray)
Display data
Optical Instruments
Response
100%
90%
10%
0%
Black (data off)
T
R
White (data on)
R
, T
F
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 at center point
: 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
DD
I
DD
10.8 12.0 13.2 V (1)
- 725 850 mA
(c) Checker - 1060 1200 mA
Vsync Frequency f
Hsync Frequency f
Main Frequency f
Rush Current I
V
H
DCLK
RUSH
48 60 62 Hz
50 67.5 73 kHz
130 148.5 155 MHz
--3A(4)
Note (1) The ripple voltage should be controlled under 10% of V
(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) Checker
DD
(2),(3)(b) White - 730 850 mA
.
(4) Measurement Conditions
V
100%
DD
90%
10%
GND
Rush Current I
T
can be measured when T
RUSH
RUSH
≥ 470༕
. is bigger then 470༕.
RUSH
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3.2 Back Light Unit
The back light unit contains Direct type White LEDs (Light Emitting Diode)
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Samsung Secret
Ta=25 · 2¶C
LCD Module
Converter CNT
Item Min. Typ. Max. Unit Note
Operating Life Time 30000 - - Hour
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]
Signal & Power CNT
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3.3 Converter Input Condition & Specification
Samsung Secret
Specifications
Items Symbol Conditions
Min. Typ. Max.
Input Voltage Vin - 22 24 26 V Ta=25·YG¶j
Input Rush Current I
Output Current I
Backlight
On/Off
Dimming Range V
Vin=24.0V
RUSH
LED, N
ON Vin=24.0 V 3 - 5.25
_DIM
Vdim =3.3V
Vin=21.6 ~ 26.4V
Vdim =3.3V
Vin :22~26V 0 - 3.3 V
- - 3.66 A
380 400 420 mA
Unit Note
V
Pin(#12)OFF Vin=24.0 V 0 - 0.4
Dimming Duty
Output
External Dimming
Duty Range
External Dimming
Frequency Range
External Dimming
Signal Level
D max Vin=24V Dim:3.3V - - 100
%(2)
D min Vin=24V Dim:0V 10 - -
EX_Dim Min 10 - 100 %
F
EX_PWM
V
PWM
Vin=22.0~26.0 V 95 120 185 Hz
High (ON) 3 - 5.25
V
Low (Off) 0 - 0.4
Dim Pin(#14)
: Floating, (4)
Note) Power Consumption is measured when 300 [cd/m ] of luminance which is the typical
luminance.
(1) All data is measured after 60min warm-up.
(2) only use #Pin 13
(3) only use #Pin14
(4) External PWM frequency should be synchronized with SET frequency
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4. Input Terminal Pin Assignment
Samsung Secret
4.1. Input Signal & Power Connector : FI-RE51S-HF (JAE)
ISO-C51B-C38(UJU)
w z k w z k
X
Y\
XW
XX
XY
XZ
X[
X\
X]
X^
X_
X`
YW
YX
YY
YZ
Y[
12V DC power supply
Y
Z
[
\
]
^
_
`
12V DC power supply
12V DC power supply
12V DC power supply
12V DC power supply
NC NOTE1
GND Ground
GND Ground
GND Ground
RO[0]N Odd LVDS Signal -
RO[0]P Odd LVDS Signal +
RO[1]N Odd LVDS Signal -
RO[1]P Odd LVDS Signal +
RO[2]N Odd LVDS Signal -
RO[2]P Odd LVDS Signal +
GND Ground
ROCLK- Odd LVDS Clock -
ROCLK+ Odd LVDS Clock +
GND Ground
RO[3]N Odd LVDS Signal -
RO[3]P Odd LVDS Signal +
NC
NOTE1
NC
GND Ground
RE[0]N Even LVDS Signal -
Y]
Y^
Y_
Y`
ZW
ZX
ZY
ZZ
Z[
Z\
Z]
Z^
Z_
Z`
[W
[X
[Y
[Z
[[
[\
[]
[^
[_
[`
\W
\X
RE[0]P Even LVDS Signal +
RE[1]N Even LVDS Signal -
RE[1]P Even LVDS Signal +
RE[2]N Even LVDS Signal -
RE[2]P Even LVDS Signal +
GND Ground
ROCLK- Even LVDS Clock -
ROCLK+ Even LVDS Clock +
GND Ground
RE[3]N Even LVDS Signal -
RE[3]P Even LVDS Signal +
NC
NC
GND Ground
NC
NC
NC
NC
NC
LVDS_SEL NOTE2
NC
NC
NC
NC
NC
NC NOTE1
NOTE1
NOTE1
Note1) No Connection: These PINS are used only for SAMSUNG. (DO NOT CONNECT)
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High
-
3.6 V
-
Note(2) LVDS OPTION : If this PIN is HIGH (3.3 V) → Normal LVDS format
Pull down resistor : 47Kohm
SEQUENCE : On = V
OFF = Interface Signal(T3) ≥ LVDS Option
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LOW (GND) → JEIDA LVDS format
DD(T1) ≥ LVDS Option ≥ Interface Signal(T2)
Vin
LVDS
Option
LVDS
Signal
Note (3) Signal level of LVDS selection
Low 0 V
Note(4) Pin number starts from Left side
T2
Min Typ Max
2.8V
T3
LVDS Option Sequence
0.4V
PCB
Pin No. 1 Pin No. 51
#1 #51
#1
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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4.2. converter Input Pin Configuration
Connector : Yeon-ho, 20022WS-H14J
Pin Configuration(FUNCTION)
Pin No.
Master
124 V
224 V
324 V
424 V
524 V
6GND
7GND
8GND
9GND
10 GND
11 No connection
12 ENA [ converter on/off control signal ] *Note(2)
Samsung Secret
13 Analog Dimming Control [0V:Min, 3.3V:Max] *Note(1)
14 External PWM [10~100%] *Note(1), Note(2)
Note(1) If use Dimming Control, Pin 14 Must be N.C
If use External PWM, Pin 13 Must be N.C
Note(2) Pin 12 has Pull down register 100Kohm, Pin 13/14 has Pull up register 100Kohm
4.3. converter Input Power Sequence
Vin (24V)
0.02sec [Min]
Dimming Control
External PWM
Backlight On/Off
0.5sec [Min]
0.5sec [Min]
0.2sec [Min]
0sec [Min]
0 sec [Min]
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
- LVDS Receiver : Tcon (merged)
- Data Format
TxOUT/RxIN0
Samsung Secret
LVDS pin JEIDA -DATA VESA -DATA
TxIN/RxOUT0 R2 R0
TxIN/RxOUT1 R3 R1
TxIN/RxOUT2 R4 R2
TxIN/RxOUT3 R5 R3
TxIN/RxOUT4 R6 R4
TxIN/RxOUT6 R7 R5
TxIN/RxOUT7 G2 G0
TxIN/RxOUT8 G3 G1
TxIN/RxOUT9 G4 G2
TxIN/RxOUT12 G5 G3
TxOUT/RxIN1
TxOUT/RxIN2
TxOUT/RxIN3
TxIN/RxOUT13 G6 G4
TxIN/RxOUT14 G7 G5
TxIN/RxOUT15 B2 B0
TxIN/RxOUT18 B3 B1
TxIN/RxOUT19 B4 B2
TxIN/RxOUT20 B5 B3
TxIN/RxOUT21 B6 B4
TxIN/RxOUT22 B7 B5
TxIN/RxOUT24 HSYNC HSYNC
TxIN/RxOUT25 VSYNC VSYNC
TxIN/RxOUT26 DEN DEN
TxIN/RxOUT27 R0 R6
TxIN/RxOUT5 R1 R7
TxIN/RxOUT10 G0 G6
TxIN/RxOUT11 G1 G7
TxIN/RxOUT16 B0 B6
TxIN/RxOUT17 B1 B7
TxIN/RxOUT23 RESERVED RESERVED
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4.5 Input Signals, basic display colors and gray scale of each color
Samsung Secret
COLOR
BASIC
COLOR
GRAY
SCALE
OF
RED
GRAY
SCALE
OF
GREEN
GRAY
SCALE
OF
BLUE
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
RED 111111110000000000000000 R255
BLACK 000000000000000000000000 G0
DARK
LIGHT
GREEN 000000001111111100000000 G255
BLACK 000000000000000000000000 B0
DARK
LIGHT
BLUE 000000000000000011111111 B255
010000000000000000000000 R2
↑
↓
↑
↓
↑
↓
:::::: :::::: ::::::
:::::: :::::: ::::::
101111110000000000000000 R253
011111110000000000000000 R254
000000001000000000000000 G1
000000000100000000000000 G2
:::::: :::::: ::::::
:::::: :::::: ::::::
000000001011111100000000 G253
000000000111111100000000 G254
000000000000000010000000 B1
000000000000000001000000 B2
:::::: :::::: ::::::
:::::: :::::: ::::::
000000000000000010111111 B253
000000000000000001111111 B254
RED GREEN BLUE
GRAY
SCALE
LEVEL
R3~
R252
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
VD
HD
C
H
V
130 148.5 155 MHz -
50 67.5 73 KHz -
48 60.0 62 Hz -
- 1080 - Lines -
V
1092 1125 1380 Lines -
- 1920 - Clocks -
H
2090 2200 2350 clocks -
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 : Min 30KHz
5.2 LVDS Input Data Characteristics
ITEM SYMBOL Min. Typ. Max. UNIT NOTE
t
Input Data
Position
Input common mode voltage V
Differential Input Voltage |V
=85MHz
F
IN
RSRM
t
RSLM
CM
| 100 - 600 mV -
ID
Note) When the skew is measured the Spread Spectrum should be 0%
- - 400 ps
-400 - - ps
VSSL+0.6 1.2 VDDL-0.6 V -
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5. 3 Timing diagrams of interface signal ( DE mode )
TV
TVD
DE
TH
THD
DE
DCLK
Samsung Secret
TVB
TC
DATA
SIGNALS
DCLK
DISPLAY
DATA
TC
TCH
TDS TDH
TES
TCL
0.5
V
0.5
V
CC
CC
DE
0.5
V
CC
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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.
Power supply
Vdd
1ms<T1≤10ms
1ms<T2≤50ms
0<T3≤50ms
1000ms≤T4
1000ms≤T5
100ms≤T6
(Recommend Value)
BLU
T1 : VDDrising time from 10% to 90%
T2 : The time from V
to valid data at power ON.
DD
T3 : The time from valid data off to VDDoff at power Off.
T4 : VDDoff time for Windows restart
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 LED 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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Module(80.6kg) + Desiccant(0.52kg)
Pallet(14.5kg) + Packing SET(18.5kg)
7. PACKING
7.1 Carton (Internal Package)
ګڜڞڦڤکڢٻګڜڧڧڠگٻڝڪڳ
ڧڞڟٻڨڪڟڰڧڠ
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ګڜڧڧڠگٻګڧڜڮگڤڞ
8.2 Packing Specification
Item Specification Remark
LCD Packing
Pallet 1 Box / Pallet
Packing Direction Vertical
13ea / Box
(Packing-Pallet Box)
1. 6.2 Kg / LCD (24ea)
2. 18.5 Kg / Packing Box (1set)
> Packing Box Material : Paper
3. 10 g/EA, 4 EA/Module,
Cobalt-dichloride-free
1. Pallet weight = 4.9 kg
> Pallet Material : HDPE
Total Pallet Size L x W x height 1150mm(L) x 850mm(W) x 1071mm(height)
Total Pallet Weight 114.12 kg
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MODEL LTA400HM23 Doc. No 06-000-G-20120704 Page
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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 : LTA400HM23
(2) Revision: Three letters
(3) Lot number : X XXXXXX
(4) Nameplate Indication
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Samsung Secret
XX X
Cell Position No. (In the Glass)
Glass No. (In the one Lot)
Lot No. (Glass)
Month
Year (Note1)
Product code
Line
LTA400HM23
1125
[[[[[[[[[[ [[[
LTA320HW03XXX
80mm
80mm
(5) Packing box attach
DVC : LTA400HM23
TYPE : 001
QTY : 13
XXXXXXXXXX
Week code : 11 25
week
year
40mm
Revision code
Lot number
Model + suffix code
100mm
Part number
Revision code
Actual quantity
Box serial number
XXXXXXXXXXXXXX
165mm
(6) Others
1. After service part
LED bar can not be replaced because of the narrow bezel structure.
MODEL LTA400HM23 Doc. No 06-000-G-20120704 Page
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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 them.
(b) Module 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 LED 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 do 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 ESD (Electro-Static 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 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 Interface connector should not be touched directly with bare hands.
MODEL LTA400HM23 Doc. No 06-000-G-20120704 Page
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Storage Temperature
5
Humidity
Condition
-
- Products should not be placed on the floor, but on the Pallet
-
-
- If products delivered or kept in conditions of over the storage
period of 3months, the recommended temperature or humidity
9.2 Package storage
We highly recommend to comply with the criteria in the table below.
ITEM UNIT Min. Max.
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Samsung Secret
()
Storage
Storage Life 6 months
Storage
(%rH) 35 75
The storage room should provide good ventilation and
temperature control.
away from a wall.
Prevent products from direct sunlight, moisture nor water;
Be cautious of a build up of condensation.
Avoid other hazardous environment while storing goods.
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.
40
(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
MODEL LTA400HM23 Doc. No 06-000-G-20120704 Page
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 Converter power supply should
be connected directly with a minimized length. A longer cable between
the back light and the Converter may cause lower luminance of lamp(LED) and
may require higher startup voltage(Vs).
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9.4 Operation Condition Guide
) The LCD product should be operated under normal conditions.
(a
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.
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Samsung Secret
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,
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.
(g) Be cautious for detergents or water not to be permeated into the gap
between the module and the panel when placing the module upside down.
MODEL LTA400HM23 Doc. No 06-000-G-20120704 Page
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