LMT090DICFWD-ABD
LCD Module User Manual
Prepared by:
Checked by:
Approved by:
Pengzhen
Date: 2025-12-18
Date:
Date:
Rev. Descriptions
Edit
Release Date
0.1
Preliminary
Pengzhen
2025-12-18
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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. Physical Characteristics....................................................................................................................9
8. LCD Module Design and Handling Precautions........................................................................... 11
9. CTP Mounting Instructions............................................................................................................. 12
9.1 Bezel Mounting (Figure 1) ...........................................................................................................................................................12
9.2 Surface Mounting (Figure 2) ........................................................................................................................................................12
9.3 Additional Cover Lens Mounting (Figure 3) .....................................................................................................................................13
Warranty................................................................................................................................................ 13
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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 :
226.9 x 150.5 x 24.15(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
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(24.0V)
Backlight Driver Control
2
BL_EN
Input
BL_EN=Hi , Backlight Booster enable
BL_EN=Lo , Backlight Booster disable
Backlight dimming control
3
BL_ADJ
Input
PWM may be used to adjust the output brightness
BL_ADJ=Hi,0% Drive
BL_ADJ=Lo,100% 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
GND=0V,Ta=25 C
Items
Symbol
Min.
Max.
Unit
Condition
Power Supply voltage
VCC_IN
-0.3
+3.6
V
Backlight Supply voltage
BL_VDD
-0.3
+25
V
USB Supply voltage
VDD
-0.3
+5.5
V
TX Out voltage
V Tx
-13.2
+13.2
V
RX Input voltage
V Rx
-25
+25
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)
GND=0V,V CMLVDS =1.2V,T a =25 C
Items
Symbol
MIN.
TYP.
MAX.
Unit
Note
Supply Voltage
VCC_IN
3.0
3.3
3.6
V
Differential Input High
Threshold
VTH
-
-
100
mV
Differential Input Low
Threshold
VTL
-100
-
-
mV
Operating Current
I VCC_IN
-
150
-
mA
Note1
Note1:To test the current dissipation,using the “ color bar ” testing pattern
5.2 DC Characteristics(K2 Backlight)
GND=0V,T a =25 C
Items
Symbol
MIN.
TYP.
MAX.
Unit
Note
Supply Voltage
VDD
23.5
24.0
24.5
V
Input High Voltage
V IH
3.0
-
VCC_IN
V
BL_EN,BL_ADJ
Input Low Voltage
V IL
GND
-
0.3
V
BL_EN,BL_ADJ
VDD Power Consumption
I dd
-
120
-
mA
*1
Note1:
*1. Backlight brightness is 100%
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5.3 DC Characteristics(K4 Backlight)
GND=0V,Ta=25 C
Items
Symbol
MIN.
TYP.
MAX.
Unit
Note
Forward Current
I F
198
220
242
mA
33LEDS
Forward Voltage
V F
8.4
9.3
10.2
V
(3 LED Serial,11
LED Parallel)
Backlight Power Consumption
W BL
-
2.178
-
W
VDD Power Consumption
I dd
-
20000
-
Hrs
I F =220mA
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 defined for one channel LED.Optical performance should be evaluated at Ta=25 ℃ only If 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
Parameter
Symbol
MIN.
TYP.
MAX.
Unit
Note
VDD 3.0V 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
21.4
30.0
37.9
ns
Input Data Position 0
t RI 0
-0.3
-
+0.3
( tRICLK = 30.0 ns )
ns
Input Data Position 1
t RI 1
t RI CLK/7-0.3
t RI CLK/7
t RI CLK/7+0.3
(tRICLK = 30.0 ns )
ns
Input Data Position 2
t RI 2
2t RI CLK/7-0.3
2t RI CLK/7
2t RI CLK/7+0.3
(tRICLK = 30.0 ns )
ns
Input Data Position 3
t RI 3
3t RI CLK/7-0.3
3t RI CLK/7
3t RI CLK/7+0.3
(tRICLK = 30.0 ns )
ns
Input Data Position 4
t RI 4
4t RI CLK/7-0.3
4t RI CLK/7
4t RI CLK/7+0.3
(tRICLK = 30.0 ns )
ns
Input Data Position 5
t RI 5
5t RI CLK/7-0.3
5t RI CLK/7
5t RI CLK/7+0.3
(tRICLK = 30.0 ns )
ns
Input Data Position 6
t RI 6
6t RI CLK/7-0.3
6t RI CLK/7
6t RI CLK/7+0.3
(tRICLK = 30.0 ns )
ns
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
6
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
3
20
TH
VS Blanking
tvb
23
23
23
TH
VS Front Porch
tvfp
7
22
147
TH
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7. Physical 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
400
500
-
-
Note 1,3
T on
-
10
20
msec
Response Time
Normal
Note 1,4
T off
-
15
30
msec
θ=Φ=0 °
X
0.260 0.310 0.360
Chromaticlty
White
-
Note 1,5
Y
0.280 0.330 0.380
Luminance
L
200
250
-
cd/m 2
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.
The definition of viewing angle:
LCM displays full white. The brightness is the average value of 9
Refer to the graph below marked by θ and Ф
measured 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:
Note 4:
The definition of contrast ratio (Test LCM using SR-3A (1°)):
Definition of Response time. (Test LCD using BM-7A(2°)):
Contrast
Luminance When LCD is at “White” state
The output signals of photo detector are measured when the input
Ratio(CR)
=
Luminance When LCD is at “Black” state
signals are changed from “black” to “white”(falling time) and from
(Contrast Ratio is measured in optimum common electrode voltage) “white” to “black”(rising time), respectively.
The response time is defined as 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. LCD Module Design and
8. 液晶显示模块设计和使用须知
Handling Precautions
- Please ensure V0, VCOM is adjustable, to enable LCD module get - 请注意 V0, VCOM 的设定, 以确保液晶显示模块在不
the best contrast ratio under different temperatures, view angles and
同的使用温度下以及在不同的视角和位置观察模块显
positions.
示，均能达到最佳对比度，请务必将应用电路上设置
为对比度可调。
- Normally display quality should be judged under the best contrast - 请注意液晶显示模块的显示品质判定是指在正常对比
ratio within viewable area. Unexpected display pattern may com out
度下以及视窗(V.A)范围内进行的，非正常对比度下
under abnormal contrast ratio.
液晶可能会出现非预期的显示不良，应注意区分。
- Never operate the LCD module exceed the absolute maximum - 请勿在最大额定值以外使用液晶显示模块。
ratings.
- Never apply signal to the LCD module without power supply.
- 请勿在没有接通电源的条件下，给液晶显示模块输送
（ No Hot-plugging ）
信号。（禁止热插拔）
- Keep signal line as short as possible to reduce external noise - 请尽可能缩短信号线的连接，以避免对液晶显示模块
interference.
的信号干扰。
- IC chip (e.g. TAB or COG) is sensitive to light. Strong light might - 集成电路因 IC 芯片(如 TAB 或 COG)对紫外线极为敏
cause malfunction. Light sealing structure casing is recommended.
感，强光环境下可能会引起液晶显示模块功能失效，
故应采用不透光的外壳。
- Make sure there is enough space (with cushion) between case and - 请在液晶显示模块与外壳之间保留足够的空间(可使
LCD panel, to prevent external force passed on to the panel;
用衬垫)，以缓冲外力对液晶显示模块的损坏或因受
otherwise that may cause damage to the LCD and degrade its
力不均而产生的显示不匀等异常现象。
display result.
- Avoid showing a display pattern on screen for a long time - 避免液晶显示屏在某一画面下长时间点亮，否则有出
(continuous ON segment).
现残影的风险；请通过软件每隔一段时间改变一次画
面。
- LCD module reliability may be reduced by temperature shock.
- 液晶显示模块的可靠性可能因温度冲击而降低。
- When storing and operating LCD module, avoids exposure to direct - 请勿在阳光直射、高湿、高温或低温下储存和使用液
sunlight, high humidity, high or low temperature. They may damage
晶显示模块，这将造成液晶显示模块的损坏或失效。
or degrade the LCD module.
- Never leave LCD module in extreme condition (max./min - 请勿在极限环境(最大/最小存储/工作温度)下使用或
storage/operate temperature) for more than 48hr.
放置液晶显示模块超过 48 小时以上。
- Recommend LCD module storage conditions is 0 C~40 C <80%RH. - 液晶显示模块建议存储条件为: 0 C~40 C <80%RH 。
- LCD module should be stored in the room without acid, alkali and - 请勿让液晶显示模块存储于带有 酸性, 碱性, 有害
harmful gas.
气体环境之中。
- Avoid dropping & violent shocking during transportation, and no - 在运输过程中, 请勿让液晶显示模块跌落与猛烈震
excessive pressure press, moisture and sunlight.
动, 同时避免 异常挤压, 高湿度, 与阳光照射.
- LCD module can be easily damaged by static electricity. Please - 液晶显示模块极易受静电损坏，请务必保证液晶显示
maintain an optimum anti-static working environment to protect the
模块在防静电的工作环境中使用或保存。(如: 烙铁
LCD module. (eg. ground the soldering irons properly)
正确接地,等)
- Be sure to ground the body when handling LCD module.
- 拿取液晶显示模块时需注意操作人员的接地情况。
- Only hold LCD module by its sides. Never hold LCD module by - 请手持液晶显示模块的边沿取放模块，防止热压纸或
applying force on the heat seal or TAB.
TAB 部位受力。
- When soldering, control the temperature and duration avoid - 焊接液晶模块时，请注意控制烙铁的温度、焊接时
damaging the backlight guide or diffuser which might degrade the
间，以免烫坏导光板或偏光片，导致显示不匀等不良
display result such as uneven display.
现象发生。
- Never let LCD module contact with corrosive liquids, which might - 请勿使用洗板水等腐蚀性液体接触液晶模块，以免腐
cause damage to the backlight guide or the electric circuit of LCD
蚀导光板或模块电路。
module.
- Only clean LCD with a soft dry cloth, Isopropyl Alcohol or Ethyl - 仅可使用柔软的干布, 异丙醇或乙醇清洁液晶屏表
Alcohol. Other solvents (e.g. water) may damage the LCD.
面，其他任何溶剂(如:水)都有可能损坏液晶模块。
- Never add force to components of LCD module. It may cause - 请勿挤压液晶显示模块上的元器件，以避免产生潜在
invisible damage or degrade the module's reliability.
的损坏或失效而影响产品可靠性。
- When mounting LCD module, please make sure it is free from - 装配液晶显示模块时，请务必注意避免液晶显示模块
twisting, warping and bending.
的扭曲或变形。
- Do not add excessive force on surface of LCD, which may cause the - 请勿挤压液晶显示屏表面，这将导致显示颜色的异
display color change abnormally.
常。
- LCD panel is made with glass. Any mechanical shock (e.g. dropping - 液晶屏由玻璃制作而成，任何机械碰撞(如从高处跌
from high place) will damage the LCD module.
落)均有可能损坏液晶显示模块。
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- Protective film is attached on LCD screen. Be careful when peeling - 液晶屏表面带有保护膜, 揭除保护膜时需要注意可能
off this protective film, since static electricity may be generated.
产生的静电。
- Polarizer on LCD gets scratched easily. If possible, do not remove - 因液晶显示屏表面的偏光片极易划伤，安装完成之前
LCD protective film until the last step of installation.
请尽量不要揭下保护膜。
- When peeling off protective film from LCD, static charge may cause - 请缓慢揭除保护膜，在此过程中液晶显示屏上可能会
abnormal display pattern. The symptom is normal, and it will turn
产生静电线，此为正常情况，可在短时间内消失。
back to normal in a short while.
- LCD panel has sharp edges, please handle with care.
- 请注意避免被液晶显示屏的边缘割伤。
- Never attempt to disassemble or rework LCD module.
- 请不要试图拆卸或改造液晶显示模块。
- If display panel is damaged and liquid crystal substance leaks out, - 当液晶显示屏出现破裂, 内部液晶液体可能流出; 相
be sure not to get any in your mouth, if the substance comes into
关液体不可吞吃, 绝对不可接触嘴巴, 如接触到皮肤
contact with your skin or clothes promptly wash it off using soap and
或衣服, 请使用肥皂与清水彻底清洗.
water.
9. CTP Mounting Instructions
9. 电容触摸屏安装指导
9.1
Bezel Mounting (Figure 1)
9.1 面框安装（附图 1）
- The bezel window should be bigger than the CTP active area. It - 客户面框窗口应大于 CTP 动作区域，各边离动作区应
should be ≥ 0.5mm each side.
≥0.5mm.
- Gasket should be installed between the bezel and the CTP surface.
- 面框与 CTP 面板间应垫有胶垫，其最终间隙约为
The final gap should be about 0.5~1.0mm.
0.5～1.0mm.
- It is recommended to provide an additional support bracket for - 建议必要时在背面提供附加支架(例如无安装结构的
backside support when necessary (e.g. slim type TFT module
薄型 TFT 模块)，应仅利用适当支撑以保持模块位置.
without mounding structure). They should only provide appropriate
support and keep the module in place.
- The mounting structure should be strong enough to prevent external - 安装结构应具有足够的强度，以防止外部不均匀力或
uneven force or twist act onto the module.
扭曲力作用到模块上.
Figure 1
9.2
Surface Mounting (Figure 2)
9.2 嵌入安装（附图 2）
- As the CTP assembling on the countersink area with double side - 客户面框应具有使用双面胶粘贴 CTP 的结构沉台面，
adhesive.The countersink area should be flat and clean to ensure
其粘贴面要求平整且洁净无污以保证粘贴牢靠.
the double side adhesive installation result.
- The Bezel is recommend to keep a gap ( ≥ 0.3mm each side) - 考虑到制作误差，建议面框与 CTP 盖板之间四周留有
around the cover lens for tolerance.
≥0.3mm 间隙.
- It is recommended to provide an additional support bracket with - 建议必要时在背面提供垫有胶垫附加支架(例如无安
gasket for backside support when necessary (e.g. TFT module
装结构的 TFT 模块)，应仅利用适当支撑以保持模块
without mounding structure). They should only provide appropriate
位置.
support and keep the module in place.
- The mounting structure should be strong enough to prevent external - 安装结构应具有足够的强度，以防止外部不均匀力或
uneven force or twist act onto the module
扭曲力作用到模块上。
Figure 2
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LCD Module User Manual
LMT090DICFWD-ABD
9.3
Additional Cover Lens Mounting (Figure 3)
9.3 覆加盖板（附图 3）
- For the case of additional cover Lens mounting, it is necessary to - 需要覆加玻璃盖板的安装，为确保其功能，有必要查
recheck with the CTP specification about the material and thickness
看产品规格书中有关盖板材料和厚度的说明.
to ensure the functionality.
- It should keep a 0.2~0.3mm gap between the cover lens and the - 玻璃盖板与 CTP 表面之间应留有 0.2～0.3mm 间隙.
CTP surface..
- The cover lens window should be bigger than the active area of the - 玻璃盖板视窗应大于 CTP 动作区域，各边离动作区应
CTP.It should be ≥ 0.5mm each side.
≥0.5mm。
- It is recommended to provide an additional support bracket for - 建议必要时在背面提供附加支架(例如无安装结构的
backside support when necessary (e.g. slim type TFT module
薄型 TFT 模块)，应仅利用适当支撑以保持模块位置.
without mounding structure). They should only provide appropriate
support and keep the module in place.
- The mounting structure should be strong enough to prevent external - 安装结构应具有足够的强度，以防止外部不均匀力或
uneven force or twist act onto the module.
扭曲力作用到模块上.
Figure 3
Warranty
This product has been manufactured to our company’s specifications as a part for use in your company’s general electronic
products. It is guaranteed to perform according to delivery specifications. For any other use apart from general electronic
equipment, we cannot take responsibility if the product is used in medical devices, nuclear power control equipment,
aerospace equipment, fire and security systems, or any other applications in which there is a direct risk to human life and
where extremely high levels of reliability are required. If the product is to be used in any of the above applications, we will
need to enter into a separate product liability agreement.
- We cannot accept responsibility for any defect, which may arise form additional manufacturing of the product (including
disassembly and reassembly), after product delivery.
- We cannot accept responsibility for any defect, which may arise after the application of strong external force to the
product.
- We cannot accept responsibility for any defect, which may arise due to the application of static electricity after the
product has passed our company’s acceptance inspection procedures.
- When the product is in CCFL models, CCFL service life and brightness will vary according to the performance of the
inverter used, leaks, etc. We cannot accept responsibility for product performance, reliability, or defect, which may arise.
- We cannot accept responsibility for intellectual property of a third part, which may arise through the application of our
product to our assembly with exception to those issues relating directly to the structure or method of manufacturing of
our product.
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