LMT090DICFWD-ABA
LCD Module User Manual
Prepared by:
Checked by:
Approved by:
LINLI
Date: 2019-08-24
Date:
Date:
Rev. Descriptions
Release Date
0.1
Preliminary
2019-06-01
0.2
Update Specification and K1 Terminal , Add K4 Terminal
2019-08-24
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LMT090DICFWD-ABA
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
K3 Touch Panel Controller Terminal ...................................................................................................................... 4
3.4
K4 Backlight Terminal .......................................................................................................................................... 4
4. Absolute Maximum Ratings .................................................................................................. 5
5. Electrical Characteristics ...................................................................................................... 5
5.1
DC Characteristics(K1 LVDS) ................................................................................................................................ 5
5.2
DC Characteristics(K2 Backlight) ........................................................................................................................... 5
5.3
DC Characteristics(K4 Backlight) ........................................................................................................................... 6
5.4
POWER ON/OFF SEQUENCE .............................................................................................................................. 6
6. AC Characteristics ................................................................................................................. 7
6.1
AC Characteristics(LVDS) ...................................................................................................................................... 7
6.2
AC Characteristics(TFT) ........................................................................................................................................ 8
7. Optical Characteristics .......................................................................................................... 9
8. Resistive Touch Panel Design Precautions ....................................................................... 11
9. Precautions of using LCD Modules .................................................................................... 11
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1. General Specification
Signal Interface :
LVDS (24bit JEIDA)
Display Mode :
Transmissive with Normally White
Screen Size :
9.0 inch
Outline Dimension :
226.9x 126.9 x 23.5(mm)(with mounting Bezel)
(see outline drawing for details)
Active Area :
198.0x 111.69(mm)
Color Depth ：
16.7M
Number of dots :
800x 3 (RGB) x 480
Dot Pitch :
0.2475x 0.2327(mm)
Pixel Configuration :
R.G.B. Vertical Stripe
Backlight :
White LED
Surface Treatment:
Anti-Glare Treatment
Viewing Direction :
6 o’clock ( Gray scale Inversion ) (*1)
12 o’clock (*2)
Operating Temperature :
-20 ~ +70°C
Storage Temperature :
-30 ~ +80°C
Note:
*1. For saturated color display content (eg. pure-red, pure-green, pure-blue or pure-colors -combinations).
*2. For “ color scales ” display content.
*3. Color tone may slightly change by temperature and driving condition.
2. Block Diagram
BL_VDD, BL_GND
Backlight Control Circuit
BL_EN, BL_ADJ
BLA
BLK
Backlight
D+, D-, TX, RX
Touch Panel
VDD, VSS
800(x3) x 480 pixels
Source Driver
VCC_IN, GND
RX0+,RX0- ,RX1+,RX1-
LVDS interface
Power Circuit
RX2+,RX2-, RxC+,RxC-
RX3+,RX3-,
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3. Terminal Function
3.1 K1 LVDS Terminal
Pin No.
Pin Name
IO
Descriptions
1~4
NC
-
No connection
5
GND
Power Ground
6
RXC+
Input
LVDS receiver positive signal clock
7
GND
Power Ground
8
RXC-
Input
LVDS receiver negative signal clock
9
RX3+
Input
LVDS receiver positive signal channel 3
10
RX2+
Input
LVDS receiver positive signal channel 2
11
RX3-
Input
LVDS receiver negative signal channel 3
12
RX2-
Input
LVDS receiver negative signal channel 2
13
GND
Power Ground
14
RX1+
Input
LVDS receiver positive signal channel 1
15
GND
Power Ground
16
RX1-
Input
LVDS receiver negative signal channel 1
17
VCC_IN
Power Positive Power Supply(3.3V)
18
RX0+
Input
LVDS receiver positive signal channel 0
19
VCC_IN
Power Positive Power Supply(3.3V)
20
RX0-
Input
LVDS receiver negative signal channel 0
3.2 K2 Backlight Terminal
Pin No.
Pin Name
IO
Descriptions
1
BL_VDD
Power Positive Power Supply(12.0V)
BL_EN
Backlight Driver Control
2
Input
BLON=Hi , Backlight Booster enable
BLON=Lo , Backlight Booster disable
Backlight dimming control
3
BL_ADJ
Input
PWM may be used to adjust the output brightness
BL_ADJ=Hi,100% Drive
BL_ADJ=Lo,0% Drive
4
NC
-
No connection
5
NC
-
No connection
6
BL_GND
Power Power Supply GND (0V)
3.3 K3 Touch Panel Controller Terminal
Pin No.
Pin Name
IO
Descriptions
1
VSS
Power Power Supply GND (0V)
2
VDD
Power Positive Power Supply(5.0V)
3
VSS
Power Power Supply GND (0V)
4
D+
I/O
USB D+ signal
5
D-
I/O
USB D- signal
6
VSS
Power Power Supply GND (0V)
7
VDD
Power Positive Power Supply(5.0V)
8
VSS
Power Power Supply GND (0V)
9
TX
Output RS-232 TX signal
10
RX
Input
RS-232 RX signal
3.4 K4 Backlight Terminal
Pin No.
Pin Name
IO
Descriptions
1,2
BLA
Power Power for LED backlight(anode)
3,4
BLK
Power Power for LED backlight(Cathode)
Note: if you want to use K4,must be open JP10,JP11
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4. Absolute Maximum Ratings
Items
Symbol
Min.
Max.
Unit Condition
Power Supply voltage
VCC_IN
-0.3
+3.6
V
Backlight Supply voltage
BL_VDD
-0.3
+13
V
USB Supply voltage
VDD
-0.3
+5.5
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.
5. Electrical Characteristics
5.1 DC Characteristics(K1 LVDS)
T a =25  C
Items
Symbol
MIN.
TYP.
MAX.
Unit
Note
Supply Voltage
VCC_IN
3.0
3.3
3.6
Differential Input High Threshold
VTH
-
-
100
mV
Differential Input Low Threshold
VTL
-100
-
-
mV
Differential Input common
Mode voltage
VCMLVDS
-
1.2
-
V
Operating Current
I VCC_IN
-
150
-
mA
Note1
Note1:To test the current disspation,using the “ color bar ” testing pattern
LVDS DC timing diagram
5.2 DC Characteristics(K2 Backlight)
GND=0V,T a =25  C
Items
Symbol
MIN.
TYP.
MAX.
Unit
Note
Supply Voltage
VDD
11.5
12.0
12.5
V
Input High Voltage
V IH
3.0
VCC_IN
BL_EN,BL_ADJ
Input Low Voltage
V IL
GND
0.3
BL_EN,BL_ADJ
VDD Power Consumption
I dd
-
200
-
mA
*1
Note1:
*1. Backlight brightness is 100%
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5.3 DC Characteristics(K4 Backlight)
Items
Symbol
MIN.
TYP.
MAX.
Unit
Note
Forward Current
I F
-
20
-
mA
33LEDS
Forward Voltage
V F
9.0
9.9
10.5
V
(3 LED Serial,11
LED Parallel)
Backlight Power Consumption
W BL
-
2.178
-
W
VDD Power Consumption
I dd
-
20000
-
Hrs
I F =20mA
Note1: The LED driving condition is defined for each LED module (3LED Serial,11LED Parallel).For each LED: IF(1/11)
=20mA,VF(1/3) =3.3V.
Note2: Under LCM operating, the stable forward current should be inputted. And forward voltage is for reference only.
Note3: IF is definedfor one channel LED.Optical performance should be evaluated at Ta=25 ℃ onlyIf LED is driven by high
current, high ambient temperature & humidity condition. The life time of LED will be reduced.Operating life means
brightness goes down to 50% initial brightness. Typical operating life time is estimated data.
Note4: The LED driving condition is defined for each LED module
5.4 POWER ON/OFF SEQUENCE
Symbol
MIN.
TYP.
MAX.
Unit Note
Parameter
VDD 5.0V to signal starting
Tp1
0
-
50
ms
Signal staring to backlight on
Tp2
150
-
-
ms
Signal off to VDD 3.0V
Tp3
0
-
50
ms
Backlight off to signal off
Tp4
150
-
-
ms
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6. AC Characteristics
6.1 AC Characteristics(LVDS)
VCC_IN=3.3V,GND=0V,T a =25  C
Item
Symbol
MIN.
TYP.
MAX.
Unit Condition
Input CLK period
t RI CLK
8.9
-
50
ns
Input Data Position 0
t RI 0
-0.3
-
+0.3
ns
( tRICLK = 8.9ns )
Input Data Position 1
t RI 1
t RI CLK/7-0.3
t RI CLK/7
t RI CLK/7+0.3
ns
(tRICLK = 8.9ns )
Input Data Position 2
t RI 2
2t RI CLK/7-0.3
2t RI CLK/7
2t RI CLK/7+0.3
ns
(tRICLK = 8.9ns )
Input Data Position 3
t RI 3
3t RI CLK/7-0.3
3t RI CLK/7
3t RI CLK/7+0.3
ns
(tRICLK = 8.9ns )
Input Data Position 4
t RI 4
4t RI CLK/7-0.3
4t RI CLK/7
4t RI CLK/7+0.3
ns
(tRICLK = 8.9ns )
Input Data Position 5
t RI 5
5t RI CLK/7-0.3
5t RI CLK/7
5t RI CLK/7+0.3
ns
(tRICLK = 8.9ns )
Input Data Position 6
t RI 6
6t RI CLK/7-0.3
6t RI CLK/7
6t RI CLK/7+0.3
ns
(tRICLK = 8.9ns )
Input Clock and Data timing Diagram:
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6.2 AC Characteristics(TFT)
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
Item
Symbol
Values
Unit
Remark
MIN.
TYP.
MAX.
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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7. Optical Characteristics
Item
Symbol
Condition
MIN.
TYP.
MAX.
UNIT
Note.
θ L
60
70
-
Viewing angle
θ R
60
70
-
(CR ≥ 10)
degree
Note 2
θ T
40
50
-
θ B
60
70
-
Contrast ratio
CR
500
600
-
-
Note 1,3
T on
θ = Φ =0 °
-
10
20
msec
Response Time
Note 1,4
T off
15
30
msec
X
0.260 0.310 0.360
White
Y
0.280 0.330 0.380
X
0.540 0.590 0.640
Red
Y
Backlight
0.300 0.350 0.400
Chromaticlty
is on
Note 1,5
X
0.298 0.348 0.398
Green
Y
0.520 0.570 0.620
X
0.095 0.145 0.195
Blue
Y
0.060 0.110 0.160
Luminance
L
200
cd/m 2
NTSC
-
50
-
%
Note 5
Luminance uniformity
U
70
75
-
%
Note 1,7
Test Conditions:
1. IF= 220 mA, VF=9.3V, and the ambient temperature is 25. ℃
2. The test systems refer to Note 1 and Note 2.
3.Tested without touch panel .
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Note 1:
Note 2:
The data are measured after LEDs are turned on for 5 minutes. LCM
The definition of viewing angle:
displays full white. The brightness is the average value of 9 measured
Refer to the graph below marked by θ and Ф
spots. Measurement equipment SR-3A (1°)
Measuring condition:
- Measuring surroundings: Dark room
- Measuring temperature: Ta=25 ℃ .
- Adjust operating voltage to get optimum contrast at the
center of the display.
Note 3:
The definition of contrast ratio (Test LCM using SR-3A (1°)):
Note 4:
Contrast
Luminance When LCD is at “White” state
Definition of Response time. (Test LCD using BM-7A(2°)):
Ratio(CR)
=
Luminance When LCD is at “Black” state
The output signals of photo detector are measured
(Contrast Ratio is measured in optimum common electrode voltage)
“white” to “black”(rising time), respectively.
the time interval between the 10% and 90% of amplitudes.Refer to
figure as below.
Note 5:
Note 6:
Definition of Color of CIE1931 Coordinate and NTSC Ratio.
The luminance uniformity is calculated by using following formula.
△ Bp = Bp (Min.) / Bp (Max.)×100 (%)
Color gamut:
Bp (Max.) = Maximum brightness in 9 measured spots
Area of RGB triangle
S=
X100%
Bp (Min.) = Minimum brightness in 9 measured spots .
Area of NTSC triangle
Note 7:
Measured the luminance of white state at center point
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8. Resistive Touch Panel Design Precautions
1. It should prevent front case touching the touch
panel Active Area (A.A.) to prevent abnormal
touch.
It should left gab (e.g. 0.2~0.3mm) in between.
2. Outer case design should take care about the area outside the A.A.
Those areas contain circuit wires which is having different thickness. Touching those areas could de-
form the ITO film. As a result case the ITO cold be damaged and shorten its lifetime.
It is suggested to protect those areas with gasket (between the front case and the touch panel).
The suggested figures are B≥0.50mm; C≥0.50mm 。
3. The front case side wall should keep space
(e.g. 0.2 ~ 0.3mm) from the touch panel.
4. In general design,
touch panel V.A. should be bigger than the LCD V.A.
and touch panel A.A. should be bigger than the LCD A.A.
9. Precautions of using LCD Modules
Please refer to "LCD-Module-Design-Handling-Precaution.pdf".
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