LMT070DICFWD-NCN
LCD Module User Manual
Prepared by:
Checked by:
Approved by:
Yu
Date: 2019-01-08
Date:
Date:
Rev.
Descriptions
Release Date
0.1
Preliminary release
2011-02-15
0.2
Revise DC char.; Add Parts, Packing and Reliability Test Sections
2011-06-14
0.3
Revise DC char.& Major Part List
2011-06-21
0.4
Refine 7.1 Timing Characteristics
2012-02-09
0.5
Add Outline Dwg
2015-07-31
0.6
Update Section 4
2019-01-08
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Table of Content
1.   Applications ............................................................................................................................. 3  
2.   General Specification.............................................................................................................. 3  
3.   Block Diagram.......................................................................................................................... 3  
4.   Terminal Function (Input Terminal) ....................................................................................... 4  
5.   Absolute Maximum Ratings.................................................................................................... 5  
6.   Electrical Characteristics........................................................................................................ 5  
6.1  
DC Characteristics ................................................................................................................................................. 5  
7.   AC Characteristics................................................................................................................... 6  
7.1  
Timing Characteristics ............................................................................................................................................ 6  
7.2  
Input Clock and Data Timing Diagram ................................................................................................................... 6  
7.3  
Timing .................................................................................................................................................................... 7  
7.4  
Data Input Format .................................................................................................................................................. 7  
7.5  
Optical Characteristics ........................................................................................................................................... 8  
8.   Parts .......................................................................................................................................... 9  
9.   Packing..................................................................................................................................... 9  
10.   Precautions of using LCD Modules ..................................................................................... 10  
11.   Reliability Test ....................................................................................................................... 11  
12.   Appendix .............................................................................................................................. 11  
 
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1. Applications
This Module is designed for application which require high quality flat panel displays. It is
also a good substitute for many outmoded CSTN module in the industrial application.
2. General Specification
Signal Interface :
Digital 18-bits RGB
Display Technology :
a-Si TFT active matrix
Display Mode :
Transmissive / Normal White
Screen Size(Diagonal) :
7.0”
Outline Dimension :
169.0 x 115.1x 8.6 (mm)
(see attached drawing for details)
Active Area :
154.08 x 85.92 (mm)
Number of dots :
800 x 3 (RGB) x 480
Pixel Pitch :
0.0642 x 0.179 (mm)
Pixel Configuration :
RGB Stripe
Backlight :
LED
Surface Treatment :
Anti-Glare Treatment
Viewing Direction :
6 o’clock
Operating Temperature :
-20 ~ +70°C
Storage Temperature :
-30 ~ +80°C
3. Block Diagram
Backlight Circuit
7” TFT Panel
Source Driver
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4. Terminal Function (Input Terminal)
Pin No.
Pin Name
I/O
Descriptions
1
GND
Power
Power Supply GND (0V)
2
GND
3
ADJ
Input
LED driver enable control
ADJ=Lo, BL off; ADJ=Hi, BL on
4
VLED
Power
Backlight Positive Power Supply (5V)
5
VLED
6
VCC
7
VCC
Power
Positive Power Supply (3.3V)
8
GND
Input
Power Supply GND (0V)
9
DE
Input
Data input enable
10
GND
11
GND
Power
Power Supply GND (0V)
12
GND
13
B5
14
B4
Input
Blue Data
15
B3
16
GND
Power
Power Supply GND (0V)
17
B2
18
B1
Input
Blue Data
19
B0
20
GND
Power
Power Supply GND (0V)
21
G5
22
G4
Input
Green Data
23
G3
24
GND
Power
Power Supply GND (0V)
25
G2
26
G1
Input
Green Data
27
G0
28
GND
Power
Power Supply GND (0V)
29
R5
30
R4
Input
Red Data
31
R3
32
GND
Power
Power Supply GND (0V)
33
R2
34
R1
Input
Red Data
35
R0
36
GND
Power
Power Supply GND (0V)
37
GND
38
DCLK
Input
Data Clock
39
GND
40
GND
Power
Power Supply GND (0V)
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5. Absolute Maximum Ratings
Items
Symbol
Min.
Max.
Unit
Condition
Power Supply voltage
V CC
-0.3
5.0
V
Backlight Supply voltage
V LED – GND
-0.3
6.0
V
Operating Temperature
T OP
-20
70
C
No Condensation
Storage Temperature
T ST
-30
80
C
No Condensation
Note:
*1. This rating applies to all parts of the module. And should not be exceeded.
*2. The operating temperature only guarantees operation of the circuit. The contrast, response speed,
and the other specification related to electro-optical display quality is determined at the room temperature, T OP =25 ℃
*3. Ambient temperature when the backlight is lit (reference value)
*4. Any Stresses exceeding the Absolute Maximum Ratings may cause substantial damage to the device. Functional
operation of this device at other conditions beyond those listed in the specification is not implied and prolonged
exposure to extreme conditions may affect device reliability.
6. Electrical Characteristics
6.1
DC Characteristics
Top=25 ℃ , GND=0V
Items
Symbol
Min.
Typ.
Max.
Unit
Remark
Power Supply Voltage
V CC
3.0
3.3
3.6
V
*2,*5
Backlight Supply Voltage
V LED
4.5
5.0
5.5
V
*5
Input logic high voltage
V IH
0.7 V CC
-
V CC
V
*2, *3
Input logic low voltage
V IL
0
-
0.3 V CC
V
*2, *3
Input ADJ high voltage
V ADJH
3.0
-
5.5
V
Input ADJ low voltage
V ADJL
0
-
0.8
V
Logic Supply (VCC)
I VCC
-
25
100
mA
Backlight Supply (VLED)
I VLED
-
230
600
mA
*4, ADJ=Hi
Backlight Life Time
-
20,000
-
-
hr
*4
Note:
*1. Never Apply logic signal before the VCC and VLED supply.
*2. VCC setting should match the signals voltage
*3. For Inputs: DCLK, DE, R0~R5, G0~G5, B0~B5
*4. PWM signal (Freq=3000Hz (Typ.)) may applied to ADJ pin for backlight brightness control, where its life time
could be extend by lower brightness.
*5.Backlight Supply(VLED) and Power Supply (VCC) may provide individually.
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7. AC Characteristics
7.1
Timing Characteristics
Item
Symbol
MIN.
TYP.
MAX.
Unit
Remark
HS setup time
Thst
8
-
-
ns
HS hold time
Thhd
8
-
-
ns
VS setup time
Tvst
8
-
-
ns
VS hold time
Tvhd
8
-
-
ns
Data setup time
Tdsu
8
-
-
ns
Data hole time
Tdhd
8
-
-
ns
DE setup time
Tesu
8
-
-
ns
DV DD Power On Slew rate
TPOR
-
-
20
ms
From 0 to 90%
DV DD
DCLK cycle time
Tcph
20
-
-
ns
DCLK pulse duty
Tcwh
40
50
60
%
7.2
Input Clock and Data Timing Diagram
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7.3
Timing
Item
Symbol
MIN.
TYP.
MAX.
Unit
Remark
Horizontal Display Area
thd
-
800
-
DCLK
DCLK Frequency
fclk
26.4
33.3
46.8
MHz
One Horizontal Line
th
862
1056
1200
DCLK
HS pulse width
thpw
1
-
40
DCLK
HS Blanking
thb
46
46
46
DCLK
HS Front Porch
thfp
16
210
354
DCLK
Vertical Display Area
tvd
-
480
-
TH
VS period time
tv
510
525
650
TH
VS pulse width
tvpw
1
-
20
TH
VS Blanking
tvb
23
23
23
TH
VS Front Porch
tvfp
7
22
147
TH
7.4
Data Input Format
Figure 6-2-1 Horizontal input timing diagram.
Figure 6-2-2 Vertical input timing diagram.
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7.5
Optical Characteristics
Item
Symbol
Condition
MIN.
TYP.
MAX.
UNIT
Note.
θ L
9 o’clock
60
70
-
Viewing angle
θ R
3 o’clock
60
70
-
(CR ≥ 10)
degree
*2
θ T
12 o’clock
40
50
-
θ B
6 o’clock
60
70
-
T f
-
10
20
msec
Response Time
*3
T r
-
15
30
msec
Contrast ratio
CR
400
500
-
-
Normal
W X
0.26
0.31
0.26
-
*1
Color chromaticlty
θ =0 o
W Y
0.28
0.33
0.38
-
2
Luminance
L
-
250
-
cd/m
*4
Luminance uniformity
Y U
70
75
-
%
*4
Note:
*1. Definition of Contrast Ratio
The contrast ratio could be calculate by the following expression:
Contrast Ratio (CR) = Luminanc with all pixels white / Luminance with all pixels black
*2 Definition of Viewing Angle
*3 Definition of response time
*4 Definition of Luminance Uniformity
Luminance uniformity (Lu)=
Min. Luminance form pt1~pt9 / Max Luminance form Pt1~pt9
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8. Parts
8.1
Major Part List
Item
Part No.
Supplier
Reference No.
TFT Panel
P18328010
Innolux
AT070TN90
Backlight Unit
P04303010
White LED side light
PCB Unit
P06400010
Socket(K1)
P21311010
Xinfuer
0.5A-50PBS
Socket(K2)
P21312010
Xinfuer
0.5E-40PBX
Printed Circuit
SHENZHEN SUN&LYNN CIRCUIT /
Board
P05390010
MEI ZHOU BOMIN ELECTRONICS
9. Packing
9.1
Inside of Packing
Packing-box partitions as 12x3 slot.
Each slot holds a LCD module with anti-static bag.
One Packing-box holds up-to 36 LCD modules
9.2
Outside of Packing-Box
A label on the side shows the content details
√
LMT070DICFWD-NCN
xxxxxxxxx
xxxxxxxx
36PCS
PASS
201X-XX-XX
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10.Precautions of using LCD Modules
Mounting
-
Mounting must use holes arranged in four corners or four sides.
-
The mounting structure so provide even force on to LCD module. Uneven force (ex. Twisted stress)
should 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.
-
It is suggested to attach a transparent protective plate to the surface in order to protect the polarizer.
It should have sufficient strength in order to the resist external force.
-
The housing should adopt radiation structure to satisfy the temperature specification.
-
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.
-
Do not touch, push or rub the exposed polarizers with glass, tweezers or anything harder than HB
pencil lead. Never rub with dust clothes with chemical treatment. Do not touch the surface of
polarizer for bare hand or greasy cloth.(Some cosmetics deteriorate the polarizer.)
-
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.
-
Wipe off saliva or water drops as soon as possible. Their long time contact with polarizer
Operating
-
The spike noise causes the mis-operation of circuits. It should be within the ± 200mV level (Over and
under shoot voltage)
-
Response time depends on the temperature.(In lower temperature, it becomes longer.)
-
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.
-
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.
-
When fixed patterns are displayed for a long time, remnant image is likely to occur.
-
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
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.
Strong Light Exposure
Strong light exposure causes degradation of polarizer and color filter.
Storage
When storing modules as spares for a long time, the following precautions are necessary.
-
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.
-
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.
Protection Film
-
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.
-
The protection film is attached to the polarizer with a small amount of glue. If some stress is applied
to rub the protection film against the polarizer during the time you peel off the film, the glue is apt
tore main on the polarizer. Please carefully peel off the protection film without rubbing it against the
polarizer.
-
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 polarizer after the protection film is peeled off.
-
You can remove the glue easily. When the glue remains on the polarizer surface or its vestige is
recognized, please wipe them off with absorbent cotton waste or other soft material like chamois
soaked with normal-hexane.
Transportation
The LCD modules should be no falling and violent shocking during transportation, and also should avoid
excessive press, water, damp and sunshine.
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11.Reliability Test
Test Items
Testing Condition
Note
High Temperature Storage
Top = + 80 ℃
240hrs
Note *1, Note *4
Low Temperature Storage
Top= -30 ℃
240hrs
Note *1, Note *4
High Temperature Operation
Tst = +70 ℃
96hrs
Note *2, Note *4
Low Temperature Operation
Tst = -20 ℃
96hrs
Note *2, Note *4
Operate at High Temperature
Note *4
and Humidity
+60 ℃ ,90%RH
96hrs
Thermal Shock
-30 ℃ /30 min ~ +80 ℃ /30 min for a total 10
Note *4
cycles, Start with cold temperature and end
with high temperature.
Electro Static Discharge
± 2000V, Human Body Mode
Note:
*1. Top = operating temperature of the product.
*2. Tst = storage temperature of the product.
*3. In the standard condition, there shall be no practical problem that may affect the display function. After the reliability
test, the product only guarantees operation, but don’t guarantee all of the cosmetic specification.
*4. Before cosmetic and function test, the product must have enough recovery time, at least 2 hours at room
temperature.
12. Appendix <Inspection items and criteria for appearance
defect>
12.1 Bright/Dark Dots:
Defect Type
Specification
Major
Minor
Bright Dots
N ≤ 2
●
Dark Dots
N ≤ 3
●
Total Bright and Dark Dots
N ≤ 4
●
Note: 1. The definition of dot: The size of a defective dot over 1/2 of whole dot is regarded as one defective dot.
2. Bright dot: Dots appear bright and unchanged in size in which LCD panel is displaying under black
pattern.
3. Dark dot: Dots appear dark and unchanged in size in which LCD panel is displaying under pure red,
green, blue pattern.
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