LMT035DNJFWD-NAN

LMT035DNJFWD-NAN

LCD Module User Manual

Prepared by:

Checked by:

Approved by:

Caiwei

Date: 2022-07-06

Date:

Rev.

Descriptions

Release Date

0.1

Preliminary New release

2020-06-22

0.2

Update Electrical Characteristics

2020-07-16

0.3

Add interface mode selection

2022-07-06

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Table of Content

1. Basic Specifications.....................................................................................................................3

1.1 Block Diagram...................................................................................................................................................................3

1.2 Terminal Functions...........................................................................................................................................................4

2. Absolute Maximum Ratings.........................................................................................................5

3. Electrical Characteristics.............................................................................................................5

3.1 DC Characteristics............................................................................................................................................................5

4. AC Characteristics........................................................................................................................6

4.1 DBI Type B........................................................................................................................................................................6

4.2 3-Line SPI Interface Timing Characteristic.......................................................................................................................9

4.3 4-Line SPI Interface Timing Characteristic.....................................................................................................................10

4.5 Power ON/OFF Sequence..............................................................................................................................................11

4.6 Reset timing....................................................................................................................................................................13

5. Optical Characteristics...............................................................................................................13

6. LCD Module Design and Handling Precautions ....................................................................................... 16

7. CTP Mounting Instructions ................................................................................................................................ 17

8. RTP Mounting Instructions ................................................................................................................................ 18

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1. Basic Specifications

Screen Size(Diagonal) :

3.5”

Active Area :

48.96x73.44(mm)

Number of dots :

480x320(RGB)

Pixel Pitch ：

0.153x0.153(mm)

Color Depth:

65K/262K Color

Display Technology :

a-Si TFT active matrix

Display Mode :

Transmissive With Normally white

Display Interface :

RGB

Viewing Direction :

3 o ’ clock (gray scale inverse)(*1)

9 o ’ clock (*2)

Touch Panel :

PolarizerSurface Treatment:

Touch Interface:

Operating Temperature :

-20 ~ +70°C (No Condensation)

Storage Temperature :

-30 ~ +80°C (No Condensation)

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.

1.1 Block Diagram

BLEN

VSS

Backlight Circuit

480x 320(RGB) pixels

TFT Panel

VSS

VDD

D0(SDA),D1(SDO)~D7

TFT Driver

/WR(D/C),/RD,/CS,/RES,D/C(SCL)

ILI9488 or equivalent

FMARK

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1.2 Terminal Functions

Pin No.

Descriptions

(K1)

Name

I/O

80-8bit(default)

3-SPI

4-SPI

VSS

Negative power supply,0V

VSS

Backlight enable

BLEN

BLEN = H: turn off Backlight

BLEN = L: turn on Backlight

(*1)

VDD

Positive power supply

VDD

/RD

Read enable input, active low

Please fix this pin at VDD

Display

Please fix

data/command

/WR(D/C)

Write enable input, active low

this pin at

selection pin in

VDD.

4-line serial

interface.

D/C=H, Transferring the Display

D/C(SCL)

Data

This pin is used to be serial

D/C = L, Transferring the Control

interface clock.

Data

Chip Select

/CS

/CS=L, enable access to the LCD module

/CS=H, disable access to the LCD module

The data is latched on the

D0(SDA)

I/O

rising edge of the SCL

signal.

SPI interface output pin.

D1(SDO)

I/O

Data Input

The data is output on the

rising edge of the SCL

signal.

I/O

Please fix this pin at VDD or

GND level.

Reset signal

/RES

/RES = L, Initialization is executed

/RES = H, Normal running.

FMARK

Displaying Timing Frame Signal

20~28

*1 :The PWM frequency is between 2k Hz and 10kHz.

*2 :System interface select

Mode

Install

No install

80-8bit (default)

R23,R24(0R,0603,5%)

R22,R25

3-SPI

R22,R25(0R,0603,5%)

R23,R24

4-SPI

R22,R24(0R,0603,5%)

R23,R25

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2. Absolute Maximum Ratings

VDD =5V, VSS=0V, T OP =25  C

Items

Symbol

Min.

Max.

Unit

Condition

Power Voltage

VDD

-0.3

+5.5

V SS = 0V

Input Voltage

V IN

-0.3

+5.5

V SS = 0V

Operating Temperature

T OP

-20

+70

 C

No Condensation

Storage Temperature

T ST

-30

+80

 C

No Condensation

Cautions:

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.

3. Electrical Characteristics

3.1 DC Characteristics

VDD =5V, IOVCC=3.3V,VSS=0V, T OP =25  C

Items

Symbol

MIN.

TYP.

MAX.

Unit

Condition /

Application Pin

Operating Voltage

VDD

4.8

5.0

5.2

VDD

Input High Voltage

V IH

0.7*IOVCC

IOVCC

/RES,D0(SDA),

D1(SDO)~D7

Input Low Voltage

V IL

-0.3

0.3*IOVCC

/CS,/RD,/WR,BLEN,

D/C(SCL)

Output High

Voltage

V OH

0.8*IOVCC

IOVCC

Output Low

D0~D7, SDO,FMARK

Voltage

V OL

0.2*IOVCC

Operating Current

I DD

105

Backlight are ON

4.8

Backlight are OFF

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4. AC Characteristics

4.1 DBI Type B

4.1.1 DBI Type B Timing Characteristic

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4.1.2 DBI Type B Data Bus

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4.2 3-Line SPI Interface Timing Characteristic

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4.3 4-Line SPI Interface Timing Characteristic

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4.5 Power ON/OFF Sequence

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IOVDD and VDD can be applied or powered down in any order. During the Power Off sequence ,if the LCD is

in the Sleep In mode, VDD and IOVDD must be powered down with a minimum of 120 msec.If the LCD is in

the Sleep In mode, VDD and IOVDD can be powered down with a minimum of 0msec after the /RST has

been released. /CS can be applied at any time or can be permanently grounded. /RST has priority over /CS.

Notes:

There will be no damage to the ILI9488 if the power sequences are not met.

There will be no abnormal visible effects on the display panel during the Power On/Off Sequence.

There will be no abnormal visible effects on the display between the end of the Power On Sequence and before receiving the Sleep

Out command, and also between receiving the Sleep In command and the Power Off Sequence.

If the /RST line is not steadily held by the host during the Power On Sequence as defined in Sections 11.1 and 11.2 ( ILI9488

datasheet ), then it will be necessary to apply the Hardware /RST after the completion of the Host Power On Sequence to ensure

correct operations. Otherwise, all the functions are not guaranteed.

When the power is turned on, the climb period timing (Trise) must be greater than 10us.

Keep data pins D[17:0] at low level, or IOVDD comes later

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4.6 Reset timing

Item

Symbol

MIN.

TYP.

MAX.

Unit

Reset LOW pulse width

t RW

1.0

Reset time

T RT

120

5 . Optical Characteristics

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6. LCD Module Design and Handling Precautions

6. 液晶显示模块设计和使用须知

Please ensure V0, VCOM is adjustable, to enable LCD module -

请注意V0, VCOM 的设定, 以确保液晶显示模块在

get the best contrast ratio under different temperatures, view

不同的使用温度下以及在不同的视角和位置观察

angles and positions.

模块显示，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 -

请注意液晶显示模块的显示品质判定是指在正常

contrast ratio within viewable area. Unexpected display pattern

对比度下以及视窗(V.A)范围内进行的，非正常对

may com out under abnormal contrast ratio.

比度下液晶可能会出现非预期的显示不良，应注

Never operate the LCD module exceed the absolute maximum

意区分。

ratings.

请勿在最大额定值以外使用液晶显示模块。

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

Keep signal line as short as possible to reduce external noise

输送信号。

interference.

请尽可能缩短信号线的连接，以避免对液晶显示

IC chip (e.g. TAB or COG) is sensitive to light. Strong light might

模块的信号干扰。

cause

malfunction.

Light

sealing

structure

casing

is -

集成电路因IC芯片(如TAB或COG)对外线极为

recommended.

敏感，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 -

请在液晶显示模块与外壳之间保留足够的空间(可

and LCD panel, to prevent external force passed on to the panel;

使用衬垫)，以缓冲外力对液晶显示模块的损坏或

otherwise that may cause damage to the LCD and degrade its

因受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

(continuous ON segment).

有出现残影的风险；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 -

请勿在阳光直射、高湿、高温或低温下储存和使

direct sunlight, high humidity, high or low temperature. They may

用液晶显示模块，这将造成液晶显示模块的损坏

damage or degrade the LCD module.

或失效。

Never leave LCD module in extreme condition (max./min

storage/operate temperature) for more than 48hr.

请勿在极限环境(最大/最小存储/工作温度)下使

Recommend LCD module storage conditions is 0 C~40 C

用或放置液晶显示模块超过48小时以上。

<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 -

请勿让液晶显示模块存储于带有酸性, 碱性, 有

and harmful gas.

害气体环境之中。

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

excessive pressure press, moisture and sunlight.

震动, 同时避免异常挤压, 高湿度, 与阳光照

LCD module can be easily damaged by static electricity. Please

射.

maintain an optimum anti-static working environment to protect -

液晶显示模块极易受静电损坏，请务必保证液晶

the LCD module. (eg. ground the soldering irons properly)

显示模块在防静电的工作环境中使用或保存。

Be sure to ground the body when handling LCD module.

(如: 烙铁正确接地,等)

Only hold LCD module by its sides. Never hold LCD module by -

拿取液晶显示模块时需注意操作人员的接地情

applying force on the heat seal or TAB.

况。

When soldering, control the temperature and duration avoid -

请手持液晶显示模块的边沿取放模块，防止热压

damaging the backlight guide or diffuser which might degrade

纸或TAB 部位受力。

the display result such as uneven display.

焊接液晶模块时，请注意控制烙铁的温度、焊接

Never let LCD module contact with corrosive liquids, which might

时间，以免烫坏导光板或偏光片，导致显示不匀

cause damage to the backlight guide or the electric circuit of

等不良现象发生。

LCD module.

请勿使用洗板水等腐蚀性液体接触液晶模块，以

Only clean LCD with a soft dry cloth, Isopropyl Alcohol or Ethyl

免腐蚀导光板或模块电路。

Alcohol. Other solvents (e.g. water) may damage the LCD.

Never add force to components of LCD module. It may cause -

仅可使用柔软的干布 , 异丙醇或乙醇清洁液晶屏

invisible damage or degrade the module's reliability.

表面，其他任何溶剂 (如: 水 ) 都有可能损坏液晶模

When mounting LCD module, please make sure it is free from

块。

twisting, warping and bending.

请勿挤压液晶显示模块上的元器件，以避免产生

Do not add excessive force on surface of LCD, which may cause

潜在的损坏或失效而影响产品可靠性。

the display color change abnormally.

装配液晶显示模块时，请务必注意避免液晶显示

LCD panel is made with glass. Any mechanical shock (e.g.

模块的扭曲或变形。

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dropping from high place) will damage the LCD module.

请勿挤压液晶显示屏表面，这将导致显示颜色的

异常。

液晶屏由玻璃制作而成，任何机械碰撞 (如从高处

跌落)均有可能损坏液晶显示模块。

Protective film is attached on LCD screen. Be careful when -

液晶屏表面带有保护膜 , 揭除保护膜时需要注意

peeling off this protective film, since static electricity may be

可能产生的静电。

generated.

因液晶显示屏表面的偏光片极易划伤，安装完成

Polarizer on LCD gets scratched easily. If possible, do not

之前请尽量不要揭下保护膜。

remove LCD protective film until the last step of installation.

请缓慢揭除保护膜，在此过程中液晶显示屏上可

When peeling off protective film from LCD, static charge may

能会产生静电线，此为正常情况，可在短时间内

cause abnormal display pattern. The symptom is normal, and it

消失。

will turn 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 -

当液晶显示屏出现破裂 , 内部液晶液体可能流出 ;

out, be sure not to get any in your mouth, if the substance comes

相关液体不可吞吃 , 绝对不可接触嘴巴 , 如接触

into contact with your skin or clothes promptly wash it off using

到皮肤或衣服 , 请使用肥皂与清水彻底清洗 .

soap and water.

7 . CTP Mounting Instructions

7. 电容触摸屏安装指导

7.1 Bezel Mounting (Figure 1)

7.1 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CT P 动作区域，各边离动作区

should be≥0.5mm each side.

应 ≥ 0. 5mm .

Gasket should be installed between the bezel and the CTP -

面框与CT P 面板间应垫有胶垫，其最终间隙约为

surface.

0. 5～1 .0 mm .

The final gap should be about 0.5~1.0mm.

建议必要时在背面提供附加支架 ( 例如无安装结

It is recommended to provide an additional support bracket for

的薄型 T F T模块)，应仅利用适当支撑以保持模块

backside support when necessary (e.g. slim type TFT module

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 -

安装结应具有足够的强度，以防止外部不均匀

external uneven force or twist act onto the module.

力或扭曲力作用到模块上.

Figure 1

7.2 Surface Mounting (Figure 2)

7.2 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 CT P 的结沉台

adhesive.

面，其粘贴面要求平整且洁净无污以保证粘贴牢

The countersink area should be flat and clean to ensure the

靠.

double side adhesive installation result.

The Bezel is recommend to keep a gap (≥0.3mm each side)

around the cover lens for tolerance.

考虑到制作误差，建议面框与CT P盖板之间四周留

It is recommended to provide an additional support bracket with

有 ≥ 0. 3mm 间隙 .

gasket for backside support when necessary (e.g. TFT module -

建议必要时在背面提供垫有胶垫附加支架 ( 例如无

without

mounding

structure).

They

should

only

provide

安装结的T F T模块)，应仅利用适当支撑以保持

appropriate support and keep the module in place.

模块位置.

The mounting structure should be strong enough to prevent

external uneven force or twist act onto the module

安装结应具有足够的强度，以防止外部不均匀

力或扭曲力作用到模块上。

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Figure 2

7.3 Additional Cover Lens Mounting (Figure 3)

7.3 覆加盖板（附图3）

For the case of additional cover Lens mounting, it is necessary -

需要覆加玻璃盖板的安装，为确保其功能，有必

to recheck with the CTP specification about the material and

要查看产品规格书中有关盖板材料和厚度的说明 .

thickness to ensure the functionality.

It should keep a 0.2~0.3mm gap between the cover lens and the -

玻璃盖板与CT P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 -

玻璃盖板视窗应大于CT P 动作区域，各边离动作区

the CTP.It should be≥0.5mm each side.

应 ≥ 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

backside support when necessary (e.g. slim type TFT module

的薄型 T F T模块)，应仅利用适当支撑以保持模块

without

mounding

structure).

They

should

only

provide

位置.

appropriate support and keep the module in place.

The mounting structure should be strong enough to prevent

external uneven force or twist act onto the module.

安装结应具有足够的强度，以防止外部不均匀

力或扭曲力作用到模块上.

Figure 3

8. RTP Mounting Instructions

8. 电阻触摸屏安装指导

It should bezel touching the RTP Active Area (A.A.) to prevent

为避免面框直接压在动作区(A.A.)上造成误动作，

abnormal touch.It should left gab D=0.2~0.3mm in between.

面框与电阻触摸屏( R T P )之间应留有一定的空隙

(Figure 4)

D= 0. 2~ 0. 3mm 之间.( 附图 4)

Outer bezel design should take care about the area outside the -

设计面框时，要注意用面框保护触摸屏四周的非保

A.A. Those areas contain circuit wires which is having different

证操作区域，因为布线区域在此处形成一台阶，

thickness. Touching those areas could de-form the ITO film. As a

在此区域附近操作时ITO Film 变形较大，容易导

result bezel the ITO film be damaged and shorten its lifetime.

致 ITO损坏而降低寿命。为保护R T P 和避免误操

It is suggested to protect those areas with gasket (between the

作，在 R T P 与面框之间垫缓冲物（ G asket），我们

bezel and RTP).The suggested figures are B≥0.50mm;

建议设计面框应覆盖动作区的边缘，面框边缘到

C≥0.50mm. (Figure 4)

V.A.区的距离 B ≥ 0. 5 0 mm; 垫圈内边缘到V.A.区的

距离 C ≥ 0. 5 0 mm . ( 附图 4)

The bezel side wall should keep space E= 0.2 ~ 0.3mm from the -

在设计面框与 R T P组装时，应考虑到面框内侧与

RTP. (Figure 4)

R T P 外侧的间距E≥ 0. 2mm . ( 附图 4)

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LCD Module User Manual

LMT035DNJFWD-NAN

Figure 4

In general design,

通常设计时：

RTP V.A. should be bigger than the TFT V.A.

R T P 的可视区 V.A. 应不小于T F T 的可视区 V.A.

and RTP A.A. should be bigger than the TFT A.A.

及 R T P 的动作区 A.A. 应不小于T F T 的动作区

(Figure 5)

A.A.

( 附图5 )

Figure 5

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.

URL:

www.topwaydisplay.com

Document Name: LMT035DNJFWD-NAN-Manual-Rev0.3.doc

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LCD Module User Manual

LMT035DNJFWD-NAN

URL:

www.topwaydisplay.com

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