9 PRECAUTIONS 26
9-1 MOUNTING PRECAUTIONS 26
9-2 OPERATING PRECAUTIONS 26
9-3 ELECTROSTATIC DISCHARGE CONTROL 27
9-4 PRECAUTIONS FOR STRONG LIGHT EXPOSURE 27
9-5 STORAGE 27
9-6 HANDLING PRECAUTIONS FOR PROTECTION FILM 27
Ver. 1.2
24
24
25
25
25
2 / 35
Page 3
Product Specification
RECORD OF REVISIONS
Revision No. Revision Date Page Description
1.0 Apr, 08, 2013 - CAS Version 1.0 Release
- Final Specification
LC320DXE
Ver. 1.2
3 / 35
Page 4
LC320DXE
Product Specification
1. General Description
The LC320DXE is a Color Active Matrix Liquid Crystal Display with an integral Light Emitting Diode (LED)
backlight system. The matrix employs a-Si Thin Film Transistor as the active element.
It is a transmissive display type which is operating in the normally black mode. It has a 31.51 inch diagonally
measured active display area with WXGA resolution (768 vertical by 1366 horizontal pixel array).
Each pixel is divided into Red, Green and Blue sub-pixels or dots which are arranged in Horizontal stripes.
Gray scale or the luminance of the sub-pixel color is determined with a 8-bit gray scale signal for each dot,
thus presenting a palette of more than 16.7M(6bit + FRC) colors.
It has been designed to apply the 8-bit 1-port LVDS interface.
It is intended to support LCD TV, PCTV where high brightness, super wide viewing angle, high color gamut,
high color depth and fast response time are important.
Mini-LVDS(RGB)
Control
Signals
Power Signals
Source Driver Circuit
S1 S1366
G1
TFT - LCD Panel
(1366 × 768 x RGB pixels)
G768
Back light Assembly
LVDS Select
LVDS 1Port
+12.0V
LED Anode
LED Cathode
#9
CN1
(30pin)
EEPROM
SCL
Timing Controller
[LVDS Rx]
Power Circuit
Block
CN1 (7pin)
SDA
General Features
Active Screen Size 31.51 inches(800.4mm) diagonal
Outline Dimension 725.2 mm(H) x 424.4 mm(V) x 35.0 mm(D) (Typ.)
Pixel Pitch
Pixel Format 1366 horiz. by 768 vert. pixels RGB stripe arrangement
Color Depth 8bit(D), 16,7 M colors
Luminance, White 300 cd/m2 (Center 1 point) (Typ.)
Viewing Angle (CR>10) Viewing angle free ( R/L 178(Min.), U/D 178(Min.))
170.25㎛ x 510.75㎛ x RGB
[Gate In Panel]
Power Consumption Total 35.66 W (Typ.) (Logic=3.1 W , LED Driver = 32.56 W [(IF_cathode=400mA)])
Weight 3,800g (Typ.)
Display Mode Transmissive mode, Normally black
Surface Treatment Hard coating(3H), Anti-glare treatment of the front polarizer (Haze < 1%)
Ver. 1.2
4 / 35
Page 5
LC320DXE
Product Specification
2. Absolute Maximum Ratings
The following items are maximum values which, if exceeded, may cause faulty operation or permanent damage
to the LCD module.
Table 1. ABSOLUTE MAXIMUM RATINGS
Parameter Symbol
Unit Note
Min Max
Power Input Voltage LCD Circuit VLCD -0.3 +14.0 VDC
Value
LED Input Voltage Forward Voltage VF - +98 VDC
T-Con Option Selection Voltage VLOGIC
Operating Temperature TOP 0 +50
-0.3 +4.0 VDC °C
1
2,3
Storage Temperature TST -20 +60
Panel Front Temperature TSUR
- +68
°C
°C
4
Operating Ambient Humidity HOP 10 90 %RH
2,3
Storage Humidity HST 10 90 %RH
Notes
1. Ambient temperature condition (Ta = 25 2 °C )
2. Temperature and relative humidity range are shown in the figure below.
Wet bulb temperature should be Max 39°C, and no condensation of water.
3. Gravity mura can be guaranteed below 40°C condition.
4. The maximum operating temperatures is based on the test condition that the surface temperature
of display area is less than or equal to 68°C with LCD module alone in a temperature controlled chamber.
Thermal management should be considered in final product design to prevent the surface temperature of
display area from being over 68℃. The range of operating temperature may be degraded in case of
improper thermal management in final product design.
It requires two power inputs. One is employed to power for the LCD circuit. The other Is used for the LED
backlight
Table 2. ELECTRICAL CHARACTERISTICS
Parameter Symbol
Min Typ Max
Circuit :
Power Input Voltage VLCD 10.8 12.0 13.2 VDC
Power Input Current ILCD
Power Consumption PLCD 3.1 4.0 Watt 1
Rush current IRUSH - - 4.0 A 3
1. The specified current and power consumption are under the V
Notes :
- 255 332 mA 1
- 320 416 mA 2
Value
Unit notes
=12.0V, Ta=25 2°C, fV=60Hz
LCD
condition, and mosaic pattern(8 x 6) is displayed and fV is the frame frequency.
2. The current is specified at the maximum current pattern.
3. The duration of rush current is about 2ms and rising time of power input is 0.5ms (min.).
4. Ripple voltage level is recommended under ±5% of typical voltage
Ver. 1.2
White : 255 Gray
Black : 0 Gray
Mosaic Pattern(8 x 6)
6 / 35
Page 7
Product Specification
Table 3. ELECTRICAL CHARACTERISTICS (Continue)
LC320DXE
Parameter Symbol
Backlight Assembly :
Forward Current
(one array)
Forward Voltage V
Power Consumption P
Burst Dimming Duty On duty
Burst Dimming Frequency 1/T
LED Array : (APPENDIX-V)
Life Time 30,000 Hrs 6
The design of the LED driver must have specifications for the LED array in LCD Assembly.
Notes :
Anode I
Cathode I
F (anode)
F (cathode)
F
BL
Min Typ Max
380 400 420 mAdc
74.8 81.4 88.0 Vdc
- 32.6 35.2 W 5
1 100 %
95 182 Hz 7
Values
400 mAdc
Unit Note
The electrical characteristics of LED driver are based on Constant Current driving type.
The performance of the LED in LCM, for example life time or brightness, is extremely influenced by the
characteristics of the LED Driver. So, all the parameters of an LED driver should be carefully designed.
When you design or order the LED driver, please make sure unwanted lighting caused by the mismatch of the
LED and the driver (no lighting, flicker, etc) has never been occurred. When you confirm it, the LCD–
Assembly should be operated in the same condition as installed in your instrument.
1. Electrical characteristics are based on LED Array specification.
2. Specified values are defined for a Backlight Assembly. (IBL :2 LED array/LCM)
3. Each LED array has one anode terminal and one cathode terminals.
The forward current(IF) of the anode terminal is 400mA and it supplies 400mA into 1 strings, respectively
Anode#1
400mA
1string(22 LED PKG)
°°°
Cathode #1
400mA
1 Array (1 Strings)
4. The forward voltage(VF) of LED array depends on ambient temperature (Appendix-VII)
5. Maximum level of power consumption is measured at initial turn on.
Typical level of power consumption is measured after 1hrs aging at 25 2°C.
6. The life time(MTTF) is determined as the time at which brightness of the LED is 50% compared to that of
initial value at the typical LED current on condition of continuous operating at 25 2°C, based on duty 100%.
7. The reference method of burst dimming duty ratio.
It is recommended to use synchronous V-sync frequency to prevent waterfall
(Vsync * 2 =Burst Frequency)
Though PWM frequency is over 182Hz (max252Hz), function of backlight is not affected.
±5%
2, 3
4
Ver. 1.2
7 / 35
Page 8
LC320DXE
Product Specification
3-2. Interface Connections
This LCD module employs two kinds of interface connection, a 30-pin connector is used for the module
electronics and 14-pin connector is used for the integral backlight system.
3-2-1. LCD Module
- LCD Connector(CN1): KDF71G-30S-1H (Manufactured by Hirose) or IS100-L30B-C23 (Manufactured by UJU)
or FI-X30SSL-HF (Manufactured by JAE) or GT103-30S-H23-M (Manufactured by LS Cable)
or 187024-30091 (Manufactured by P-TWO)
- Mating Connector : : FI-X30C2L (Manufactured by JAE) or Equivalent
Table 4. MODULE CONNECTOR(CN1) PIN CONFIGURATION
Pin No. Symbol Description Note
1 VLCD Power Supply +12.0V
2 VLCD Power Supply +12.0V
3 VLCD Power Supply +12.0V
4 VLCD Power Supply +12.0V
5 GND Ground
6 GND Ground
7 GND Ground
8 GND Ground
No Connection (Note 4)
No Connection (Note 4)
No Connection (Note 4) 4
Appendix IV
4
4
4
Notes :
Ver. 1.2
1. All GND (Ground) pins should be connected together to the LCD module’s metal frame.
2. All VLCD (power input) pins should be connected together.
3. All Input levels of LVDS signals are based on the EIA 644 Standard.
4. These pins are used only for LGD (Do not connect)
5. Specific pin No. #30 is used for “No signal detection” of system signal interface.
It should be GND for NSB (No Signal Black) while the system interface signal is not.
If this pin is “H”, LCD Module displays AGP (Auto Generation Pattern).
8 / 35
Page 9
Product Specification
3-2-2. Backlight Module
[ CN1 ]
1) LED Array assy Connector (Plug)
: 25035WR-H02C (White Color, Manufactured by Yeonho)
Table 6 shows the signal timing required at the input of the LVDS transmitter. All of the interface signal
timings should be satisfied with the following specification for normal operation.
Table 6. TIMING TABLE (DE Only Mode)
ITEM Symbol Min Typ Max Unit Note
Horizontal
Vertical
ITEM Symbol Min Typ Max Unit Note
Frequency
Display
Period
Blank tHB 90 162 410 tclk
Total tHP 1456 1528 1776 tclk
Display
Period
Blank tVB
Total tVP
DCLK fCLK 63.0 72.4 80.0 MHz
Horizontal fH 45 47.4 55 KHz 2
Vertical fV
tHV - 1366 - tclk
tVV - 768 - tHP
20
(126)
788
(894)
57
(47)
22
(180)
790
(948)
60
(50)
240
(295)
1008
(1063)
63
(53)
tHP 1
tHP
Hz
2
NTSC :
57~63Hz
(PAL : 47~53Hz)
Note: 1. The input of HSYNC & VSYNC signal does not have an effect on normal operation (DE Only Mode).
If you use spread spectrum of EMI, add some additional clock to minimum value for clock margin.
2. The performance of the electro-optical characteristics may be influenced by variance of the vertical
refresh rate and the horizontal frequency
※ Timing should be set based on clock frequency.
Ver. 1.2
10 / 35
Page 11
3-4. LVDS Signal Specification
3-4-1. LVDS Input Signal Timing Diagram
LC320DXE
Product Specification
DCLK
1366
tCLK
0.5 Vcc
Invalid data
DE(Data Enable)
DE, Data
tHT
Valid data
1
0.7VDD
tHV
0.3VDD
1366
Invalid data
DE(Data Enable)
Ver. 1.2
768
1 768
tVV
tVT
11 / 35
Page 12
3-4-2. LVDS Input Signal Characteristics
1) DC Specification
LVDS -
LVDS +
LC320DXE
Product Specification
0 V
# V
= { ( LVDS +) + ( LVDS - ) } / 2
CM
V
CM
V
IN _ MAX V IN _ MIN
Description Symbol Min Max Unit Note
LVDS Common mode Voltage V
LVDS Input Voltage Range V
CM
IN
1.0 1.5 V -
0.7 1.8 V -
Change in common mode Voltage ΔVCM - 250 mV -
2) AC Specification
T
clk
LVDS Clock
A
LVDS Data
( F
= 1 / T
)
clk
A
LVDS 1’st Clock
LVDS 2nd / 3rd / 4th Clock
tSKEW
tSKEW
t
SKEW_min tSKEW_max
clk
T
clk
80%
20%
t
RF
Description Symbol Min Max Unit Note
VTH 100 600 mV
LVDS Differential Voltage
VTL -600 -100 mV
LVDS Clock to Data Skew t
LVDS Clock/DATA Rising/Falling time t
Effective time of LVDS t
LVDS Clock to Clock Skew (Even to Odd) t
1. All Input levels of LVDS signals are based on the EIA 644 Standard.
notes
2. If tRF isn’t enough, t
should be meet the range.
eff
SKEW
RF
eff
SKEW_EO
3. LVDS Differential Voltage is defined within t
Ver. 1.2
- |(0.20*T
260 |(0.3*T
|±360|
- |1/7* T
eff
)/7| ps
clk
)/7| ps 2
clk
- ps
| ps -
clk
Tested with Differential Probe
3
-
-
12 / 35
Page 13
Product Specification
LC320DXE
LVDS Data
0V
(Differential)
LVDS CLK
0.5tui
360ps
tui
VTH
VTL
360ps
teff
tui : Unit Interval
0V
(Differential)
* This accumulated waveform is tested with differential probe
Ver. 1.2
13 / 35
Page 14
LC320DXE
Product Specification
3-5. Color Data Reference
The brightness of each primary color(red,green,blue) is based on the 8bit gray scale data input for the color.
The higher binary input, the brighter the color. Table 7 provides a reference for color versus data input.
T1 0.5 - 20 ms 1
T2 0 - - ms 2
T3 400 - - ms 3
T4 200 - - ms 3
T5 1.0 - - s 4
T6 0 - T2 ms 5
T7 0 - - ms 6
1. Even though T1 is over the specified value, there is no problem if I2T spec of fuse is satisfied.
2. If T2 is satisfied with specification after removing LVDS Cable, there is no problem.
3. The T3 / T4 is recommended value, the case when failed to meet a minimum specification,
abnormal display would be shown. There is no reliability problem.
4. T5 should be measured after the Module has been fully discharged between power off and on period.
5. If the on time of signals (Interface signal and user control signals) precedes the on time of Power (V
it will be happened abnormal display. When T6 is NC status, T6 doesn’t need to be measured.
6. It is recommendation specification that T7 has to be 0ms as a minimum value.
※ Please avoid floating state of interface signal at invalid period.
※ When the power supply for LCD (VLCD) is off, be sure to pull down the valid and invalid data to 0V.
LCD
),
15 / 35
Page 16
LC320DXE
Product Specification
4. Optical Specification
Optical characteristics are determined after the unit has been ‘ON’ and stable in a dark environment at 25±2°C.
The values are specified at 50cm from the LCD surface at a viewing angle of and equal to 0 °.
FIG. 1 shows additional information concerning the measurement equipment and method.
Optical Stage(x,y)
LCD Module
Pritchard 880 or
equivalent
50cm
FIG. 1 Optical Characteristic Measurement Equipment and Method
Ta= 25±2°C, V
Table 10. OPTICAL CHARACTERISTICS
Parameter Symbol
IF_cathode = 400mA (Typ)
Value
Min Typ Max
Contrast Ratio CR 850 1200 - 1
Surface Luminance, white L
Luminance Variation
Response Time
Variation G to G
Gray to Gray (BW) G to G BW
WHITE
RED
Color Coordinates
[CIE1931]
GREEN
BLUE
WHITE
WH
9P 50% 60% - 3
σ
Rx
Ry 0.331
Gx 0.306
Gy 0.587
Bx 0.151
By 0.063
Wx 0.281
Wy 0.288
240 300 - cd/m
6 9 5
9 13 ms 4
0.647
Typ
-0.03
Color Temperature 10,000 K
Color Gamut 68 %
Viewing Angle (CR>10)
x axis, right(=0°)
x axis, left (=180°)
y axis, up (=90°)
y axis, down (=270°)
r 89 - -
l 89 - -
u 89 - -
d 89 - -
Gray Scale - 2.2 - 7
=12.0V, fV=60Hz, Dclk=72.4MHz,
LCD
Unit notes
2
Typ
+0.03
degree 6
2
Ver. 1.2
16 / 35
Page 17
LC320DXE
Product Specification
notes : 1. Contrast Ratio(CR) is defined mathematically as :
Surface Luminance with all white pixels
Contrast Ratio =
Surface Luminance with all black pixels
It is measured at center 1-point.
2. Surface luminance are determined after the unit has been ‘ON’ and 1 Hour after lighting the
backlight in a dark environment at 25±2°C. Surface luminance is the luminance value at center
1-point across the LCD surface 50cm from the surface with all pixels displaying white.
For more information see the FIG. 2.
3. The variation in surface luminance , WHITE is defined as :
WHITE(9P) = Minimum(L
Where L
on1
to L
are the luminance with all pixels displaying white at 9 locations .
on9
on1,Lon2
For more information, see the FIG. 2.
4. Response time is the time required for the display to transit from any gray to white (Rise Time, TrR)
and from any gray to black (Decay time, TrD). For additional information see the FIG. 3.
※ G to GBW Spec stands for average value of all measured points.
Photo Detector : RD-80S / Field : 2 °
5. G to G σ is Variation of Gray to Gray response time composing a picture
G to G (σ) =
6. Viewing angle is the angle at which the contrast ratio is greater than 10. The angles are
√
determined for the horizontal or x axis and the vertical or y axis with respect to the z axis which
is normal to the LCD module surface. For more information, see the FIG. 4.
7. Gray scale specification
Gamma Value is approximately 2.2. For more information, see the Table 11.
, · · · , L
Σ(Xi- u)2
N
, L
on8
) / Maximum(L
on9
Xi = Individual Data
u = Data average
N : The number of Data
Measuring point for surface luminance & measuring point for luminance variation.
H
LC320DXE
A
A
B
②
V
B
Response time is defined as the following figure and shall be measured by switching the input signal for
“Gray(N)” and “Black or White”.
⑤
⑦
FIG. 2 5 Points for Luminance Measure
③
①
⑧
④
⑥
A : H / 9 mm
B : V / 9 mm
@ H,V : Active Area
⑨
Ver. 1.2
100
90
Optical
Response
10
0
Gray(N)
Tr
White
N = 0(Black)~255(White)
FIG. 3 Response Time
Gray(N)
Tf
Black
18 / 35
Page 19
Dimension of viewing angle range
LC320DXE
Product Specification
= 180, Left
= 270, Down
Normal
E
FIG. 4 Viewing Angle
Y
= 90, Up
= 0, Right
Ver. 1.2
19 / 35
Page 20
Product Specification
5. Mechanical Characteristics
Table 12 provides general mechanical characteristics.
Table 12. MECHANICAL CHARACTERISTICS
Item Value
Horizontal 725.2 mm
LC320DXE
Outline Dimension
Bezel Area
Active Display Area
Weight
Vertical 424.40 mm
Depth 35.0 mm
Horizontal 705.4 mm
Vertical 400.0 mm
Horizontal 697.6845 mm
Vertical 392.256 mm
3.8 Kg (Typ.), 4.0 kg (Max.)
notes : Please refer to a mechanical drawing in terms of tolerance at the next page.
Ver. 1.2
20 / 35
Page 21
<FRONT VIEW>
LC320DXE
Product Specification
Set : Top
Ver. 1.2
Set : Down
21 / 35
Page 22
<REAR VIEW> <REAR VIEW>
LC320DXE
Product Specification
Set : Top
Ver. 1.2
Set : Down
22 / 35
Page 23
Product Specification
6. Reliability
Table 13. ENVIRONMENT TEST CONDITION
No. Test Item Condition
LC320DXE
1 High temperature storage test
2 Low temperature storage test
3 High temperature operation test
4 Low temperature operation test
Vibration test
5
(non-operating)
Shock test
6
(non-operating)
7 Humidity condition Operation
Altitude operating
8
storage / shipment
Ta= 60°C 240h
Ta= -20°C 240h
Ta= 50°C 50%RH 240h
Ta= 0°C 240h
Wave form : random
Vibration level : 1.0Grms
Bandwidth : 10-300Hz
Duration : X,Y,Z,
Each direction per 10 min
Shock level : 50Grms
Waveform : half sine wave, 11ms
Direction : ±X, ±Y, ±Z
One time each direction
Ta= 40 °C ,90%RH
0 - 16,400 ft
0 - 40,000 ft
notes : Before and after Reliability test, LCM should be operated with normal function.
Ver. 1.2
23 / 35
Page 24
Product Specification
7. International Standards
7-1. Safety
a) UL 60065, Underwriters Laboratories Inc.
Audio, Video and Similar Electronic Apparatus - Safety Requirements.
b) CAN/CSA C22.2 No.60065:03, Canadian Standards Association.
Audio, Video and Similar Electronic Apparatus - Safety Requirements.
c) EN 60065, European Committee for Electrotechnical Standardization (CENELEC).
Audio, Video and Similar Electronic Apparatus - Safety Requirements.
d) IEC 60065, The International Electrotechnical Commission (IEC).
Audio, Video and Similar Electronic Apparatus - Safety Requirements.
(Including report of IEC60825-1:2001 clause 8 and clause 9)
Notes
1. Laser (LED Backlight) Information
Class 1M LED Product
IEC60825-1 : 2001
Embedded LED Power (Class1M)
LC320DXE
2. Caution
: LED inside.
Class 1M laser (LEDs) radiation when open.
Do not open while operating.
7-2. EMC
a) ANSI C63.4 “American National Standard for Methods of Measurement of Radio-Noise
Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz.”
American National Standards Institute (ANSI), 2003.
b) CISPR 22 “Information technology equipment – Radio disturbance characteristics – Limit and
methods of measurement." International Special Committee on Radio Interference
(CISPR), 2005.
c) CISPR 13 “Sound and television broadcast receivers and associated equipment – Radio disturbance
characteristics – Limits and method of measurement." International Special Committee on Radio
Interference (CISPR), 2006.
7-3. Environment
a) RoHS, Directive 2002/95/EC of the European Parliament and of the council of 27 January 2003
Ver. 1.2
24 / 35
Page 25
8. Packing
8-1. Information of LCM Label
a) Lot Mark
A B C D E F G H I J K L M
A,B,C : SIZE(INCH) D : YEAR
E : MONTH F ~ M : SERIAL NO.
Note
1. YEAR
Year
Product Specification
2013 2012 2011
2014 E 2015
2016 G 2017 H 2018 J 2019
LC320DXE
2020
Mark
C B A
D
F
2. MONTH
Month
Mark
Apr 5 May
4
Jun 7 Jul 8 Aug 9 Sep
6
b) Location of Lot Mark
Serial NO. is printed on the label. The label is attached to the backside of the LCD module.
This is subject to change without prior notice.
8-2. Packing Form
8-2-1. GZ
a) Package quantity in one Pallet : 32 pcs
b) Pallet Size : 1140 mm X 870 mm X 1118 mm.
8-2-2. WR
a) Package quantity in one Pallet : 32 pcs
b) Pallet Size : 1200 mm X 870 mm X 1123 mm.
K
Oct
A
Nov
B
Dec Mar Feb Jan
C 3 2 1
Ver. 1.2
25 / 35
Page 26
LC320DXE
Product Specification
9. Precautions
Please pay attention to the followings when you use this TFT LCD module.
9-1. Mounting Precautions
(1) You must mount a module using specified mounting holes (Details refer to the drawings).
(2) You should consider the mounting structure so that uneven force (ex. Twisted stress) is not applied to
the
module. And the case on which a module is mounted should have sufficient strength so that external
force is not transmitted directly to the module.
(3) Please attach the surface transparent protective plate to the surface in order to protect the polarizer.
Transparent protective plate should have sufficient strength in order to the resist external force.
(4) You should adopt radiation structure to satisfy the temperature specification.
(5) Acetic acid type and chlorine type materials for the cover case are not desirable because the former
generates corrosive gas of attacking the polarizer at high temperature and the latter causes circuit break
by electro-chemical reaction.
(6) Do not touch, push or rub the exposed polarizers with glass, tweezers or anything harder than HB
pencil lead. And please do not rub with dust clothes with chemical treatment.
Do not touch the surface of polarizer for bare hand or greasy cloth.(Some cosmetics are detrimental
to the polarizer.)
(7) When the surface becomes dusty, please wipe gently with absorbent cotton or other soft materials like
chamois soaks with petroleum benzine. Normal-hexane is recommended for cleaning the adhesives
used to attach front / rear polarizers. Do not use acetone, toluene and alcohol because they cause
chemical damage to the polarizer
(8) Wipe off saliva or water drops as soon as possible. Their long time contact with polarizer causes
deformations and color fading.
(9) Do not open the case because inside circuits do not have sufficient strength.
9-2. Operating Precautions
(1) Response time depends on the temperature.(In lower temperature, it becomes longer.)
(2) Brightness depends on the temperature. (In lower temperature, it becomes lower.)
And in lower temperature, response time(required time that brightness is stable after turned on)
becomes longer
(3) Be careful for condensation at sudden temperature change.Condensation makes damage to polarizer or
electrical contacted parts. And after fading condensation, smear or spot will occur.
(4) When fixed patterns are displayed for a long time, remnant image is likely to occur.
(5) Module has high frequency circuits. Sufficient suppression to the electromagnetic interference shall be
done by system manufacturers. Grounding and shielding methods may be important to minimized the
interference.
(6) Please do not give any mechanical and/or acoustical impact to LCM. Otherwise, LCM can’t be operated
its full characteristics perfectly.
(7) A screw which is fastened up the steels should be a machine screw.
(if not, it can causes conductive particles and deal LCM a fatal blow)
(8) Please do not set LCD on its edge.
(9) The conductive material and signal cables are kept away from LED driver inductor to prevent abnormal
display, sound noise and temperature rising.
Ver. 1.2
26 / 35
Page 27
LC320DXE
Product Specification
9-3. Electrostatic Discharge Control
Since a module is composed of electronic circuits, it is not strong to electrostatic discharge. Make certain that
treatment persons are connected to ground through wrist band etc. And don’t touch interface pin directly.
9-4. Precautions for Strong Light Exposure
Strong light exposure causes degradation of polarizer and color filter.
9-5. Storage
When storing modules as spares for a long time, the following precautions are necessary.
(1) Store them in a dark place. Do not expose the module to sunlight or fluorescent light. Keep the temperature
between 5°C and 35°C at normal humidity.
(2) The polarizer surface should not come in contact with any other object.
It is recommended that they be stored in the container in which they were shipped.
(3) Storage condition is guaranteed under packing conditions.
(4) The phase transition of Liquid Crystal in the condition of the low or high storage temperature will be
recovered when the LCD module returns to the normal condition.
9-6. Handling Precautions for Protection Film
(1) The protection film is attached to the bezel with a small masking tape.
When the protection film is peeled off, static electricity is generated between the film and polarizer.
This should be peeled off slowly and carefully by people who are electrically grounded and with well ion-
blown equipment or in such a condition, etc.
(2) When the module with protection film attached is stored for a long time, sometimes there remains a very
small amount of glue still on the bezel after the protection film is peeled off.
(3) You can remove the glue easily. When the glue remains on the bezel surface or its vestige is recognized,
please wipe them off with absorbent cotton waste or other soft material like chamois soaked with normal hexane.