LMT070DICFWD-NDA-2
LCD Module User Manual
Prepared by:
Checked by:
Approved by:
Liu Sanyong
Date: 2018-06-27
Date:
Date:
Rev. Descriptions
Release Date
0.1
Preliminary release
2014-06-06
0.2
Revise Touch panel Characteristics
2014-12-02
0.3
Add note in section 5.2
2015-04-13
0.4
Update section 3.2
2018-06-27
URL: www.topwaydisplay.com
Document Name: LMT070DICFWD-NDA-2-Manual-Rev0.4.DOC
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TOPWAY
LCD Module User Manual
LMT070DICFWD-NDA-2
Table of Content
1. General Specification ............................................................................................................ 3
2. Block Diagram ........................................................................................................................ 3
3. Terminal Function .................................................................................................................. 4
3.1
K1 LVDS Terminal ................................................................................................................................................ 4
3.2
K2 Backlight Terminal ............................................................................................................................................ 4
3.3
Touch Panel Terminal ............................................................................................................................................ 5
4. Absolute Maximum Ratings .................................................................................................. 5
5. Electrical Characteristics ...................................................................................................... 5
5.1
Driving TFT LCD Panel .......................................................................................................................................... 5
5.2
LED Backlight Circuit Characteristics ..................................................................................................................... 5
5.3
Touch panel Characteristics ................................................................................................................................... 6
5.4
Power On/Off Sequence ........................................................................................................................................ 6
6. AC Characteristics ................................................................................................................. 7
6.1
LVDS Input Timing Conditions ............................................................................................................................... 7
6.2
LVDS Timing Diagram ........................................................................................................................................... 8
6.3
Data Input Timing ................................................................................................................................................... 8
6.4
Data Input Format .................................................................................................................................................. 9
7. Optical Characteristics ........................................................................................................ 10
8. Precautions of using LCD Modules .................................................................................... 10
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LCD Module User Manual
LMT070DICFWD-NDA-2
1. General Specification
Signal Interface :
LVDS （ VESA 24 bit ）
Display Mode :
Transmissive / Normal White
Screen Size(Diagonal) :
7.0”
Outline Dimension :
190.0 x 112.0x 9.8 (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 :
0.1926 x 0.179 (mm)
Pixel Configuration :
RGB Stripe
Backlight :
LED
Viewing Direction :
6 o’clock
Touch Panel:
4-wire resistive
Operating Temperature :
-20 ~ +70°C
Storage Temperature :
-30 ~ +80°C
Surface Treatment :
Anti-Glare Treatment
2. Block Diagram
YL,XU,YR,XD
Touch Panel
BL_VI, BL_GND
Backlight
BL_EN, BL_ADJ
800(x3) x 480 pixels
Source Driver
RX0+, RX0-, RX1+, RX1-
RX2+, RX2-, RX3+, RX3-
VCC_IN, GND
LVDS interface
Power Circuit
RXC+, RXC-
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LCD Module User Manual
LMT070DICFWD-NDA-2
3. Terminal Function
3.1 K1 LVDS Terminal
Pin No.
Pin Name
IO
Descriptions
24Bit
1
RX3+
Input
LVDS receiver negative signal channel 3
2
RX3-
Input
LVDS receiver positive signal channel 3
3
NC
-
No connection
4
NC
-
No connection
5
GND
Power Ground
6
RXC+
Input
LVDS receiver negative signal clock
7
RXC-
Input
LVDS receiver positive signal clock
8
GND
Power Ground
9
RX2+
Input
LVDS receiver negative signal channel 2
10
RX2-
Input
LVDS receiver positive signal channel 2
11
GND
Power Ground
12
RX1+
Input
LVDS receiver negative signal channel 1
13
RX1-
Input
LVDS receiver positive signal channel 1
14
GND
Power Ground
15
RX0+
Input
LVDS receiver negative signal channel 0
16
RX0-
Input
LVDS receiver positive signal channel 0
17
LR
Input
Display X-Flip Setting (*1)
18
UD
Input
Display Y-Flip Setting (*1)
19
VCC_IN
20
VCC_IN
Power Positive Power Supply
Note:
*1: Selection of scanning mode
Setting of scan control input
Scanning direction
U/D
L/R
Low
High
Up to down, left to right
High
Low
Down to up, right to left
Low
Low
Up to down, right to left
High
High
Down to up, left to right
3.2 K2 Backlight Terminal
Pin No.
Pin Name
IO
Descriptions
1
BL_VI
Power Positive Power Supply
Backlight dimming control
2
BL_ADJ
Input
PWM may be used to adjust the output brightness(*1)
Backlight Driver Control
3
BL_EN
Input
BLEN=Hi, Backlight Driving Booster enable
BLEN=Lo, Backlight Driving Booster disable
4
BL_GND
Power Power Supply GND (0V)
Note
*1. PWM signal vs brightness is non-linear;
- lower PWM signal might provide vary brightness on module.
- 100% PWM signal could provide guaranteed typical brightness.
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LCD Module User Manual
LMT070DICFWD-NDA-2
3.3 Touch Panel Terminal
Pin No.
Pin Name
I/O
Descriptions
1
YL
Passive Left Side sense Terminal
2
XD
Passive Down Side sense Terminal
3
YR
Passive Right Side sense Terminal
4
XU
Passive Up Side sense Terminal
4. Absolute Maximum Ratings
Items
Symbol
Min.
Max.
Unit
Condition
Power Supply voltage
VCC_IN
-0.3
+5.0
V
Backlight Supply voltage
BL_VI
-0.3
+15.0
V
Operating Temperature
T OP
-20
70
℃
No Condensation
Storage Temperature
T ST
-30
80
℃
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.
5. Electrical Characteristics
5.1 Driving TFT LCD Panel
Top=25 ℃ , VCC_IN =3.3V ,GND=0V
Items
Symbol
MIN.
TYP.
MAX.
Unit
Note
Supply Voltage
VCC_IN
3.0
3.3
3.6
V
Common Electrode
Note1
VCMLVDS
V
Driving Signal
-
3.0
-
Sync Frequency
FVD
-
60
70
Hz
VCC_IN Power Consumption
I VCC_IN
-
100
250
mA
LVDS DC timing diagram
Note1: The value may be different for different LCM.
5.2 LED Backlight Circuit Characteristics
BL_GND=0V, T OP =25 ℃
Parameter
Symbo
MIN.
TYP.
MAX.
Unit
Note
l
Operating Voltage
BL_VI
11.5
12.0
12.5
V
Input High Voltage
V IH
3.0
-
BL_VI
V
BL_EN, BL_ADJ
Input Low Voltage
V IL
BL_GND
-
0.3
V
BL_EN, BL_ADJ
Operating Current
I BL_VI
-
110
275
mA
BL_VI
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LCD Module User Manual
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Cautions:
Exceeding the recommended driving current could cause substantial damage to the backlight and shorten its lifetime.
Note:
*1: BL_EN=Hi, BL_ADJ=Hi;
*2: Recommended BL_ADJ PWM Freq. is 3kHz
*3: Terminal circuit （ Fig.1 ） :
Fig.1 Terminal circuit
5.3 Touch panel Characteristics
Items
MIN.
TYP.
MAX.
Unit
Note
Operating Voltage
-
5.0
-
V
Note1
Operating Force
100
-
160
g
Note1
Life Time
-
1,000,000
-
times Note1
X Resistance
100
-
400
Ω
-
Y Resistance
450
-
950
Ω
High temperature and humidity
-
-
60 ℃ ×90%RH/240 Hours
-
Note2
Note1: Exceeding the recommended Condition could cause substantial damage to the touch panel and
shorten its lifetime.
Note2: Before cosmetic and function test, the product must have enough recovery time,
at least 24 hours at room temperature.
Touch Panel Logic Details
XU
YL
YR
XD
5.4 Power On/Off Sequence
Items
Symbol MIN.
TYP.
Max.
Unit Note
VDD 3.0V to signal starting
Tp1
0
-
50
ms
Signal starting to backlight on
Tp2
150
-
-
ms
Signal off to VDD 3.0V
Tp3
0
-
50
ms
Backlight off to signal off
Tp4
150
-
-
ms
Interface Power On/Off Sequence
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LCD Module User Manual
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6. AC Characteristics
6.1 LVDS Input Timing Conditions
Item
Symbol
MIN.
TYP.
MAX.
Unit
Condition
CLK OUT Period
t RCP
11.8
T
66.6
ns
VCC=3.0~3.6V
CLK OUT HIGH TIME
t RCH
4T/7
ns
CLK OUT LOW TIME
t RCL
3T/7
ns
RCLK+/- to CLK OUT Delay
t RCD
5T/7
ns
TTL Data Setup to CLK OUT
t RS
0.35T-0.3
ns
TTL Data Hold From CLK OUT
t RH
0.45T-1.6
ns
Input Data Position 0
(T =11.76ns )
t RIP1
-0.4
0
+0.4
ns
Input Data Position 1
(T = 11.76ns )
t RIP0
T/7-0.4
T/7
T/7+0.4
ns
Input Data Position 2
(T = 11.76ns )
t RIP6
2T/7-0.4
2T/7
2T/7+0.4
ns
Input Data Position 3
(T = 11.76ns )
t RIP5
3T/7-0.4
3T/7
3T/7+0.4
ns
Input Data Position 4
4T/7-0.4
4T/7+0.4
ns
(T = 11.76ns )
t RIP4
4T/7
Input Data Position 5
5T/7-0.4
5T/7
5T/7+0.4
ns
(T = 11.76ns )
t RIP3
Input Data Position 6
6T/7-0.4
6T/7
6T/7+0.4
ns
(T = 11.76ns )
t RIP2
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LCD Module User Manual
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6.2 LVDS Timing Diagram
6.3 Data Input 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
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LCD Module User Manual
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6.4 Data Input Format
Horizontal input timing diagram
Vertical input timing diagram
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7. 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
-
Luminance
L
-
225
-
cd/m 2
*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
8. Precautions of using LCD Modules
Please refer to "LCD-Module-Design-Handling-Precaution.pdf".
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