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PRODUCT INFORMATION
ISSUED DATE : 2011-08-25
SAMSUNG TFT-LCD PRODUCT INFORMATION
TFT-
MODEL : LTM230HT10
Note : This is Product Information is subject to change after 3 months of issuing date.
Application Engineering Group
LCD Division, Samsung Electronics Co. , LTD.
MODEL LTM230HT10 Page 1 / 29
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PRODUCT INFORMATION
Contents
General Description --------------------------------------------------------------------------------- (3)
1. Absolute Maximum Ratings ------------------------------------------------------------------- (4)
2. Optical Characteristics -------------------------------------------------------------------------- (6)
3. Electrical Characteristics ------------------------------------------------------------------------(11)
3 El t i l Ch t i ti (11)
3.1 TFT LCD Module
3.2 Back Light Unit
4. Block Diagram ----------------------------------------------------------------------------------- (15)
4.1 TFT LCD Module
4.2
4 2 Back Light Unit
5. Input Terminal Pin Assignment -------------------------------------------------------------- (16)
5.1 Input Signal & Power
5.2 LVDS Interface
5.3 Back Light Unit
5.4 Input Signals, Basic Display Colors and Gray Scale of Each Color
6. Interface Timing --------------------------------------------------------------------------------- (21)
6.1 Timing Parameters (DE only mode)
6.2 Timing Diagrams of interface Signal (DE only mode)
6.3 Power ON/OFF Sequence
6.4 VDD Power Dip Condition
7. Outline Dimension ------------------------------------------------------------------------------- (25)
8. General Precaution ------------------------------------------------------------------------------ (27)
8.1 Handling
8.2 Storage
8.3 Operation
83O ti
8.4 Operation Condition Guide
8.5 Others
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General Description PRODUCT INFORMATION
Description
LTM230HT10 is a color active matrix liquid crystal display (LCD) that uses amorphous
q y p y( ) p
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 23.0" is 1920
x 1080 and this model can display up to 16.7 millions colors.
Features
High contrast ratio, high aperture structure
g , g p
High speed response
FHD (1920 x 1080 pixels) resolution
White LED Edge slim Backlight (1-side)
DE (Data Enable) only mode
LVDS (Low Voltage Differential Signaling) interface (2pixel/clock)
RoHS, Halogen Free
TCO 5.1 compliance
( Except for 2.2 response time; this product does not have over driving function.
It is recommended to support in system level )
Applications
Workstation & desktop monitors
p
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
Items Specification Unit Note
Pixel Pitch 265.50(H) x 265.50(W) um
Active Display Area 509.76(H) x 286.74(V) um
Surface Treatment Haze 25% , Hard coating (3H)
Display Colors 16.7M (Hi-FRC) colors
Number of Pixels 1,920 x 1,080 pixel
Pixel Arrangement RGB vertical stripe
Display Mode Normally White
Luminance of White 250(Typ.) cd/
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PRODUCT INFORMATION
Mechanical Information
Item Min. yp
Typ. Max. Unit Note
Horizontal (H) 533.5 534.0 534.5 mm
Module -
Vertical (V) 311.2 311.7 312.2 mm
size
Depth (D) - - 10.7 mm -
Weight - - 1700 g LCD module only
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.
Item Symbol Min. Max. Unit Note
Power Supply Voltage VDD GND-0.5 6.5 V (1)
Data Signal Vsig - 5 V
Storage temperature TSTG -20 60 (2)
Center of Glass surface temperature
TOPR 0 50 (2)
(Operation)
Shock ( non - operating ) Snop - 50 G (3)(5)
Vibration ( non - operating ) Vnop - 1.5 G (4)(5)
Note (1) Ta= 25 2 C
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PRODUCT INFORMATION
(2) Temperature and relative humidity range are shown in the figure below.
a. 90 % RH Max. (Ta 39 C)
b.
b Maximum wet-bulb temperature at 39 C or less. (Ta 39 C)
less
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
(5) At vibration and shock test, the fixture which holds the module to be tested has to be
hard and rigid enough so that the module would not be twisted or bent by the fixture.
Fig. Temperature and Relative humidity range
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2. Optical Characteristics PRODUCT INFORMATION
The optical characteristics should be measured in a dark room or equivalent.
Measuring equipment : SR-3, RD-80S (TOPCON), EZ-Contrast (Eldim)
(Ta = 25 2 C, VDD=5.0V, fv= 60Hz, fDCLK=67.3MHz, If =360mA)
Item Symbol Condition Min. Typ. Max. Unit Note
Contrast Ratio (3)
C/R 600 1000 -
(Center of screen) SR-3
Tr (5)
Response Time(On/Off) - 5 10 ms
Tf RD-80S
Luminance of White (6)
YL 200 250 - cd/m2
(Center of screen) SR-3
Rx
R 0.633
0 633
Red
Ry 0.340
Gx 0.320
Green
Color Gy 0.622
y
Chromaticity -0.030 +0.030
(CIE 1931) Bx 0.155
Blue Normal
By L,R=0
0.042
U,D=0
Wx 0.313
White Viewing (7),(8)
Wy Angle 0.329
SR-3
Ru' - 0.443 -
Red
Rv' - 0.527 -
Gu' - 0.131 -
Color Green
Chromaticity Gv' - 0.569 -
(CIE 1976) Bu'
B ' - 0.189
0 189 -
Blue
Bv' - 0.125 -
Wu' - 0.198 -
White
Wv' - 0.468 -
C.G.L
White u'v'
uv - - 0.02
0 02 (9)
(ACC ONLY)
* C.G.L : Color Grayscale Linearity
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PRODUCT INFORMATION
Item Symbol Condition Min. Typ. Max. Unit Note
Color Gamut - - 72 - %
Color Temperature - - 6500 - K
L 70 80 -
Hor.
70 80 - (8)
Viewing
Vi i R
CR10 Degrees EZ-
Angle 70 80 -
U Contrast
Ver.
D 70 80 -
Brightness Uniformity (4)
Buni - - 25 %
(9 Points) SR-3
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.
LED Forward current : If = 360 mA Environment condition : Ta = 25 2 C
Photo detector
Photo detector Field
SR-3 2
Field
SR-3 : 40
RD-80S : 50
TFT - LCD Module
LCD Panel
The center of the screen
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PRODUCT INFORMATION
Note (2) Definition of test point
192 960 1728
Active Area
9 8 7 108
6 5 4 540
3 2 1
972
: Test Point
Note (3) Definition of Contrast Ratio (C/R)
: Ratio of gray max (Gmax) & gray min (Gmin) at the center point of the panel
G max
CR
G min
Gmax : Luminance with all pixels white
Gmin : Luminance with all pixels black
Note (4) Definition of 9 points brightness uniformity
( B max B min)
Buni 100 u
B max
Bmax : Maximum brightness
Bmin : Minimum brightness
Note (5) Definition of Response time : Sum of Tr, Tf
Display Data White(TFT off) Black(TFT on) White(TFT off)
Optical Instruments 100%
Response
90%
10%
0%
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Note (6) Definition of Luminance of White : Luminance of white at center point
Note (7) Definition of Color Chromaticity (CIE 1931, CIE1976)
Color coordinate of Red, Green, Blue & White at center point
Note (8) Definition of Viewing Angle
: Viewing angle range (CR 10)
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PRODUCT INFORMATION
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 center of the screen.
c. Test method
-1st gray step : move a square of 255 gray level should be moved into the center of the
1
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
'u' v' = (u' A - u' B) 2 + (v' A - v' B) 2
Where A, B : 2 gray levels found to have the largest color differences between them
i.e. get the largest u' and v' of each 6 pair of u' and v' and calculate the u'v'.
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3. Electrical Characteristics PRODUCT INFORMATION
3.1 TFT LCD Module
The connector for display data & timing signal should be connected.
Ta = 25 C
Item Symbol Min. Typ. Max. Unit Note
Voltage of Power Supply VDD 4.5 5.0 5.5 V (1)
Differential Input High +100 mV (2)
Voltage for LVDS
Low -100 mV
receiver threshold
LVDS skew T skew -270 270 Ps (3)
Differential input
LVDS Input lVidl 100 600 mV (4)
voltage
Characteristics
Input voltage
range(single Vin 0.7 1.7 V (4)
ended)
Common mode
Vcm 1.0 1.2 1.4 V (4)
voltage
(a) Black - 1,200 - mA
Current of Power
(b) White
( ) IDD - 700 - mA ( ),( )
(5),(6)
Supply
S l
(c) Dot - 1,300 1,500 mA
Vsync Frequency fV 49.0 60.0 77.0 Hz
Hsync Frequency fH 54.0 66.0 88.0 kHz
Main Frequency fDCLK 55.3 67.3 87.5 MHz
Rush Current IRUSH - - 5.0 A (7)
Note (1) The ripple voltage should be controlled under 10% of VDD.
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PRODUCT INFORMATION
(2) Differential receiver voltage definitions and propagation delay and transition time test circuit
a. All input pulses have frequency = 10MHz, tR or tF=1ns
b. CL includes all probe and fixture capacitance
Note a.
Note b.
(3) LVDS Receiver DC parameters are measured under static and steady conditions
which may not be reflective of its performance in the end application.
T
LVDS Clk VDIFF= 0V VDIFF= 0V Differential
LVDS Data Differential
RX +/-
tSKEW
where tskew : skew between LVDS clock & LVDS data,
T : 1 period time of LVDS clock
cf) (-/+) of 300psec means LVDS data goes before or after LVDS clock.
(4) Definition of VID and VCM using single-end signals
VDD
VCM=1.4V |VID| = 100mV VCM=1 4V
=1.4V |VID| = 600mV
VCM=1.2V
VCM=1.0 |VID| = 100mV VCM=1.0 |VID| = 600mV
VSS
VCM range with Min |VID| VCM range with Max |VID|
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PRODUCT INFORMATION
( )
(5) fV=60Hz, fDCLK = 67.3MHz, VDD = 5.0V, DC Current.
, , ,
(6) Power dissipation check pattern (LCD Module only)
a) Black Pattern b) White Pattern c) Dot Pattern
(7) Measurement Condition
VDD
100%
90%
10%
GND
TRUSH=470
Rush Current IRUSH can be measured when TRUSH. is 470 .
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PRODUCT INFORMATION
3.2 Back Light Unit
3.2.1 The characteristics of LED bar
The back light unit is composed of WLED.
Ta=25 2C
Item Symbol Min. Typ. Max. Unit Note
LED Forward Current IF - 360 - mA -
LED Array Voltage VP - 35.2 - V -
Operating Life Time Hr 30,000 - - Hour (2)
Note (1) The above specification is not for the converter output, but for the LED bar.
The LED bar consists of 33 LED packages ; 3parallel X 11 serial
(2) Life time (Hr) is defined as the time when brightness of a LED package itself
becomes 50% or less than its original value at the condition of Ta=25 2 C
and IF =360mA.
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4. BLOCK DIAGRAM PRODUCT INFORMATION
4.1 TFT LCD Module
Usi-2
Control signal Source Driver ICs
LVDS S1 S 1920
pair #1
LVDS (Rx
USI-2 Control signal Column Driver Circuit
LVDS
pair #2
x)
CN1
(30pin) TFT-LCD
(1920 x RGB x 1080 pixels)
Timing Controller
+5.0V
VDD Power
Circuit
4.2 Back Light Unit
g
Connector: Molex 104086-0410
((Matching Connector : Molex 104085-0400 )
LED ba
ar
LED Return
LED Power
signal
LED Power
4-pin connector
p
LED Return
signal
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PRODUCT INFORMATION
5. Input Terminal Pin Assignment
5.1. Input Signal & Power (Connector : P-TWO 196260-30041 or equivalent)
PIN NO SYMBOL FUNCTION
1 RXO0N Negative LVDS differential data output
2 RXO0P Positive LVDS differential data output
3 RXO1N Negative LVDS differential data output
4 RXO1P Positive LVDS differential data output
5 RXO2N Negative LVDS differential data output
6 RXO2P Positive LVDS differential data output
7 GND Ground
8 RXOC- Negative Sampling Clock (ODD data)
9 RXOC+ Positive Sampling Clock (ODD data)
10 RXO3N N
Negative LVDS diff
ti differential d t output
ti l data t t
11 RXO3P Positive LVDS differential data output
12 RXE0N Negative LVDS differential data output
13 RXE0P Positive LVDS differential data output
14 GND Ground
15 RXE1N Negative LVDS differential data output
16 RXE1P Positive LVDS differential data output
17 GND Ground
18 RXE2N Negative LVDS differential data output
19 RXE2P Positive LVDS differential data output
20 RXEC- Negative Sampling Clock (EVEN data)
21 RXEC+ Positive Sampling Clock (EVEN data)
22 RXE3N Negative LVDS differential data output
23 RXE3P Positive LVDS differential data output
24 GND Ground
25 NC * CE (For LCD internal use only. Do not connect)
26 NC * CTL (For LCD internal use only. Do not connect)
27 NC No Connection
28 VDD
29 VDD Power Supply : +5V
30 VDD
* If the system already uses the 25, 26pins, it should keep under GND level
The voltage applied to those pins should not exceed -200mV.
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PRODUCT INFORMATION
Note) Pin number starts from Left side
PCB
Pin No. 1 Pin No. 30
#1 #30
P-TWO 196260-30041 or equivalent
#1 #30
Fig. Connector diagram
i h ld be th d l be t d
t d together and also b connected
a. All GND pins should b connected t
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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PRODUCT INFORMATION
5.2. Timing Diagrams of LVDS For Transmitting
LVDS Receiver : Integrated T-CON
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PRODUCT INFORMATION
5.3 Back Light Unit
LED Bar input connector :
p
Connector: Molex 104086-0410
((Matching Connector : Molex 104085-0400 or equivalent)
Pin No. Pin description Function
1 Vin
Vi LED power i
input
t
2 RTN 1 Channel 1 LED return
3 RTN 2 Channel 2 LED return
4 RTN 3 Channel 3 LED return
Note ) Pin number starts from Left side
Rear view of panel
#4 #1
Connector
Fig. Connector diagram
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5.4 Input Signals, Basic Display Colors and Gray Scale of Each Color
DATA SIGNAL
GRAY
DISPLAY RED GREEN BLUE
COLOR SCALE
(8bit)
LEVEL
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 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 1 1 1 1 1 1 1 1 -
GREEN 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 -
CYAN 0 0 0 0 0 0 0 0 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 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 0 0 0 0 0 0 0 0 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 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 -
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 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 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 R2
GRAY
SCALE : : : : : : : : : : : : : : : : : : R3~
OF : : : : : : : : : : : : : : : : : : R252
RED
LIGHT 1 0 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 R253
0 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 R254
RED 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 R255
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 G0
0 0 0 0 0 0 0 0 1 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 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G2
GRAY
SCALE : : : : : : : : : : : : : : : : : : G3~
OF : : : : : : : : : : : : : : : : : : G252
GREEN
LIGHT 0 0 0 0 0 0 0 0 1 0 1 1 1 1 1 1 0 0 0 0 0 0 0 0 G253
0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 G254
GREEN 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 G255
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 B0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 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 1 0 0 0 0 0 0 B2
GRAY
SCALE : : : : : : : : : : : : : : : : : : B3~
OF : : : : : : : : : : : : : : : : : : B252
BLUE
LIGHT 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 1 1 1 B253
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 B254
BLUE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 B255
Note (1) 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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PRODUCT INFORMATION
6. Interface Timing
6.1 Timing Parameters ( DE only mode )
SIGNAL ITEM SYMBOL MIN.
MIN TYP.
TYP MAX
MAX. Unit NOTE
Clock 1/TC 55.3 67.3 87.5 MHz -
Hsync Frequency FH 54.0 66.0 88.0 kHz -
Vsync FV 49 60 77 Hz -
Active
Vertical Display TVD 1080 1080 1080 Lines -
Display Term Period
Vertical Total TV 1090 1111 1250 Lines -
Active
2pixel/
Display THD 960 960 960 Clocks
Horizontal clock
Period
Display Term
Horizontal 2pixel/
TH 990 1010 1040 clocks
Total clock
Note (1) Test Point : TTL control signal and CLK at LVDS Tx input terminal in system
(2) Internal Vcc = 5.0V
(3) Best operation clock frequency is 67.3MHz(60Hz)
(4) Clock frequency = Frame frequency x TV(Typ) x TH(Typ)
(5) Max, Min variation range is at main clock Typ value (67.3MHz).
(6) While operation, DE signal should be have the same cycle.
(7) Main frequency Max is 87.5MHz without spread spectrum.
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PRODUCT INFORMATION
6.2 Timing diagrams of interface signal ( DE only 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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6.3 Power ON/OFF Sequence
To prevent a latch up or DC operation of the LCD Module the power on/off
latch-up Module,
sequence should be as the diagram below.
300 T110msec
0T250msec
0T350msec
1secT4
Back-Light
(Recommended)
500msecT5
100msecT6
T1 : VDD rising time from 10% to 90%
T2 : The time from VDD to valid data at power ON.
T3 : The time from valid data off to VDD off at power Off.
T4 : VDD off 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 VDD.
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 VDD = off level,
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.
p
Interface signal should not be kept at high impedance when the power is on.
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6.4 VDD Power Dip Condition
VDD Td
90%
80% VCC
GND
4.5V VDD 5.5V
If VDD(typ.) x 80% VCC VDD(typ) x 90%
Then, 0
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% Vcc typ VDD x 90%, then Td should be less than 20ms.
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7. Outline Dimension PRODUCT INFORMATION
[ Refer to the next page ]
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8. General Precautions PRODUCT INFORMATION
8.1 Handling
(a) When the module is assembled it should be attached to the system firmly
assembled,
using all mounting holes. Be careful not to twist and bend the module.
(b) 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 LED back light.
(c) 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.
(d) Wipe off water droplets or oil immediately. If you leave the droplets for a long
time, staining or discoloration may occur.
(e) If the surface of the polarizer is dirty clean it using absorbent cotton or soft cloth
dirty, cloth.
(f) 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.
(g) If the liquid crystal material leaks from the panel it should be kept away
panel,
from the eyes or mouth . In case of contact with hands, legs or clothes, it must
be washed away with soap thoroughly.
(h) Protect the Module from static, or the CMOS Gate Array IC would be damaged.
(i) Use finger-stalls with soft gloves in order to keep display clean during the
incoming i
i i inspection and assembly process.
ti d bl
(j) Do not disassemble the Module.
(k) Protection film for polarizer on the Module should be slowly peeled off just before use
so that the electrostatic charge can be minimized.
(l) Pins of I/F connector should not be touched directly with bare hands.
MODEL LTM230HT10 Page 27 / 29
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PRODUCT INFORMATION
8.2 Storage
We highly recommend to comply with the criteria in the table below
ITEM Unit Min. Max.
Storage Temperature ( ) 5 40
Storage Humidity (%rH) 35 75
Storage life 12 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 cautious of
sunlight,
a build up of condensation.
Storage 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.
8.3 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"
Power 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.
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PRODUCT INFORMATION
8.4 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.
8.5 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.
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.
MODEL LTM230HT10 Page 29 / 29
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