LMT035DNJFWD-1 LCD Module

Product Information: LMT035DNJFWD-1 LCD Module User Manual

The LMT035DNJFWD-1 is an LCD module that provides high-quality
display technology with a screen size of 3.5 inches (diagonal). The
module has a color depth of up to 262K colors and a resolution of
320×240 pixels. The active area of the module is 70.08mm x 52.56mm,
and the dot pitch is 0.219mm x 0.219mm. The display mode is
transmissive, and the pixel configuration is RGB vertical stripe.
The viewing direction is 6 o’clock, and the polarizer surface
treatment is anti-glare. The backlight type used in this module is
a white LED backlight. The outline dimension of the module is
76.9mm x 63.9mm x 3.2mm (max).

Product Usage Instructions:

To use the LMT035DNJFWD-1 LCD module, please follow these
instructions:

1. Terminal Functions:

Refer to the user manual for the terminal functions of the
module.

2. Absolute Maximum Ratings:

Refer to the user manual for the absolute maximum ratings of the
module.

3. Electrical Characteristics:

Refer to the user manual for the DC characteristics and LED
backlight circuit characteristics of the module.

4. AC Characteristics:

Refer to the user manual for the AC characteristics of the
module.

5. Optical Characteristics:

Refer to the user manual for the optical characteristics of the
module.

6. Inspection Condition:

Refer to the user manual for the display pattern, quality level
and sampling, and handling precaution of the module.

7. Packing Drawing:

Refer to the user manual for the packing drawing of the
module.

Note: Please keep the operating temperature of the module
between -20°C to 70°C and the storage temperature between -30°C to
80°C. The color tone of the display may slightly change by
temperature and driving condition.

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LMT035DNJFWD-1
LCD Module User Manual

Prepared by: MaQiyang
Date: 2022-03-05

Checked by: Date:

Approved by: Date:

Rev.
0.1 0.2 0.3 0.4 0.5

Descriptions
Preliminary New release Update LED Backlight Circuit Characteristics Add Inspection Condition Packing Drawing Update DC Characteristics Update section 6.2

Release Date
2020-09-16 2021-09-01 2021-10-13 2022-02-23 2022-03-05

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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 3.2 LED Backlight Circuit Characteristics …………………………………………………………………………………………………………….. 6
4. AC Characteristics………………………………………………………………………………………………………6
4.1 DBI Type B ………………………………………………………………………………………………………………………………………………… 6 4.2 3-Line SPI Interface Timing Characteristic ……………………………………………………………………………………………………. 11 4.3 4-Line SPI Interface Timing Characteristic ……………………………………………………………………………………………………. 12 4.4 DPI Interface ……………………………………………………………………………………………………………………………………………. 13 4.5 Power ON/OFF Sequence………………………………………………………………………………………………………………………….. 16 4.6 Reset timing …………………………………………………………………………………………………………………………………………….. 17
5 . Optical Characteristics ………………………………………………………………………………………………18
6 .INSPECTION CONDITION ………………………………………………………………………………21
6.2. Display Pattern……………………………………………………………………………………………………………………………..21 6.3 .Quality Level and Sampling …………………………………………………………………………………………………………… 23 6.4 Handling Precaution…………………………………………………………………………………………………………………23
7 .Packing Drawing………………………………………………………………………………………………………..24

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1. Basic Specifications

Screen Size(Diagonal) : Color Depth: Number of dots : Active Area : Dot Pitch : Display Technology : Display Mode : Pixel Configuration : Viewing Direction :
Polarizer Surface Treatment: Backlight Type: Outline Dimension :
Operating Temperature : Storage Temperature :

3.5″ 65K/262K Color 320(RGB)x480 48.96×73.44mm 0.153×0.153mm a-Si TFT active matrix Transmissive With Normally white RGB Vertical Stripe 12H (*1) (gray scale inverse) 6H (*2) HC LEDs 55.26x 84.69 x 2.2 mm (exclude FPC , see dwg for details) -20 ~ +70°C (No Condensation) -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

LEDA, LEDK1

Backlight Circuit

VDD, IOVDD
VSS IM0~IM2,RESX,VSYNC,HSYNC,PCLK,DE,DOUT,SDA
RDX,WRX_SCL,DCX,CSX
DB17/R5,Msb, DB16/R4~DB13/R1, DB12/R0,Lsb, DB11/G5,Msb, DB10/G4~DB7/G1, DB6/G0,Lsb ,
DB5/B5,Msb, DB4/B4~DB1/B1, DB0/B0,Lsb

320(RGB) x480pixels TFT Panel
ILI9488 or equivalent

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1.2 Terminal Functions

No. PIN Name

VSS

2,3

IOVDD

4,5

VDD

IM0

IM1

IM2

RESX

VSYNC

HSYNC

PCLK

14 DB17/R5,Msb

DB16/R4

DB13/R1

19 DB12/R0,Lsb

20 DB11/G5,Msb

DB10/G4

DB7/G1

DB6/G0,Lsb

DB5/B5,Msb

DB4/B4

DB1/B1

DB0/B0,Lsb

VSS

DOUT

SDA

RDX

WRX_SCL

37 DCX

38
39 40 41 42 43 44~49 50

CSX
NC(XR) NC(YD) NC(XL) NC(YU) LEDA LEDK
VSS

I/O
Power Power Power Input Input Input
Input
Input
Input
Input
Output
I/O I/O
: I/O I/O I/O I/O
: I/O I/O I/O I/O
: I/O I/O Power Output
I/O Input Input
Input
Input
–
Power Power Power

Descriptions
Negative power supply,0V IO Positive Power Positive power supply MPU system interface mode select MPU system interface mode select MPU system interface mode select Reset signal RESX = L, Initialization is executed RESX = H, Normal running. Vertical sync. signal in RGB mode If no used, please connect this pin to VSS Horizontal sync, signal in RGB mode If no used, please connect this pin to VSS Pixel clock signal in RGB mode If no used, please connect this pin to VSS Data enable signal in RGB mode If no used, please fix this pin at VSS level
Data Bus
Negative power supply,0V Serial data output pin If no used, leave this pin open serial data input /output bi-direction pin serve as a read signal (WR) Write data enable pin in DBI Type B (SCL) Write data enable pin in DBI Type C If no used, please connect this pin to IOVDD Data/Command Selection pin Low: Command High: Parameter Chip select signal If no used, please connect this pin to IOVDD
No connect
LED ANODE LEDK CATHODE Negative power supply,0V

LMT035DNJFWD-1

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2. Absolute Maximum Ratings

Items Power Voltage Input Voltage Operating Temperature Storage Temperature

Symbol VDD VIN TOP TST

Min. -0.3 -0.3 -20 -30

Max. +3.6 +3.6 +70 +80

Unit Condition

VSS = 0V

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

Items
Operating Voltage Input High Voltage

Symbo l
VDD VIH

MIN.
2.65 0.7xVDD

Input Low Voltage

VIL

-0.3

Output Low Voltage VOL

Operating Current

IDD

–

Note: *1. VDD=3.0V

TYP. 3.0
–
8

MAX. 3.6 VDD
0.3xVDD 0.99
–

Unit V V V V
mA

VSS=0V, TOP=25C Condition / Application Pin VDD,IOVDD IM0~IM2,RESX,VSYNC,HSY NC,PCLK,DB17/R5,Msb, DB16/R4~DB13/R1 ,DB12/R0,Lsb,DB11/G5,Msb, DB10/G4~DB7/G1 ,DB6/G0,Lsb,DB5/B5,Msb, DB4/B4~DB1/B1,DB0/B0,Lsb, SDA,RDX,WRX_SCL,DCX, CSX, DB17/R5,Msb, DB16/R4~DB13/R1 ,DB12/R0,Lsb,DB11/G5,Msb, DB10/G4~DB7/G1 ,DB6/G0,Lsb,DB5/B5,Msb, DB4/B4~DB1/B1,DB0/B0,Lsb, DE,SDA,DOUT VDD (*1)

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3.2 LED Backlight Circuit Characteristics

Items

Symbol

Forward Voltage

Forward Current

LED lifetime

–

Note1:LED CIRCUIT DIAGRAM

MIN. –

TYP. 3.2 20 30000

MAX. –

Unit V mA
Hours

Remark For each LED For each LED

TOP =25C

No. of LEDs = 6pcs
Note 2:LED: VF =3.2V, IF =20mA(TYP) Note 3:IF is defined for one 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. Note 4:Under LCM operating, the stable forward current should be inputted. And forward voltage is for reference only.
4. AC Characteristics
4.1 DBI Type B
4.1.1 DBI Type B Timing Characteristic

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Please refer to IC: ILI9488 data sheet for more details.

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4.1.2 DBI Type B Data Bus

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LMT035DNJFWD-1

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LCD Module User Manual

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LCD Module User Manual

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Please refer to IC: ILI9488 data sheet for more details.

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4.2 3-Line SPI Interface Timing Characteristic

LMT035DNJFWD-1

Please refer to IC: ILI9488 data sheet for more details.

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4.3 4-Line SPI Interface Timing Characteristic

LMT035DNJFWD-1

Note:Ta=-30 to 70IOVDDVDD=2.5V to 3.3VVSS=0VT=10+/-0.5ns. Please refer to IC: ILI9488 data sheet for more details.

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4.4 DPI Interface
4.4.1 DPI Interface Characteristic

LMT035DNJFWD-1

Please refer to IC: ILI9488 data sheet for more details.

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4.4.2 DPI Interface pixel format

LMT035DNJFWD-1

The Pixel clock (DCLK) runs all the time without stop. It is used to enter VS, HS, DE and D[17: 0] states when there is a rising edge of the DCLK. The DCLK cannot be used as the internal clock for other functions of the display module. Vertical synchronization (VS) is used to indicate when a new frame of the display is received. This is low enable and its state is read to the display module by a rising edge of the DCLK signal. Horizontal synchronization (HS) IS used to indicate when a new line of the frame is received. This is low enable and its state is read to the display module by a rising edge of the DCLK signal. Data Enable (DE) is used to indicate when the RGB information that should be transferred in the display is received. This is a high enable, and its state is read to the display module by a rising edge of the DCLK signal. D[17:0] is used to indicate what is the information of the image that is transferred on the display (when DE = 0 (low) and there is a rising edge of DCLK). D[17:0] can be 0(low) or 1(high). These lines are read by a rising edge of the DCLK signal. In RGB interface modes, the input display data is written to GRAM first then outputs the corresponding source voltage according to the gray data from GRAM.
NotePlease refer to IC: ILI9488 data sheet for more details.

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4.4.3 DPI(RGB) Interface timing

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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: 1. There will be no damage to the ILI9488 if the power sequences are not met. 2. There will be no abnormal visible effects on the display panel during the Power On/Off Sequence. 3. 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. 4. 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. 5. When the power is turned on, the climb period timing (Trise) must be greater than 10us. 6. Keep data pins D[17:0] at low level, or IOVDD comes later

NotePlease refer to IC: ILI9488 data sheet for more details.
4.6 Reset timing

Item

Symbol

MIN.

TYP.

MAX.

Unit

Reset LOW pulse width Reset time

tRW

1.0

–

TRT

–

120

Please refer to IC: ILI9488 data sheet for more details.

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5 . Optical Characteristics

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6 .INSPECTION CONDITION

Unless otherwise statedall the inspections are carryout under the following condition

No. Items

Conditions

1 Lighting

Illumination: Appearance 300-700Lux

300~700LUX

2 Inspection Distance

30-40cm form the test samplewithin normal viewing angle 30~40cm

3 Temperature

Room Temperature (25 ºC), no condensation 25

4 Viewing Angle

U/D: 45º/45º, L/R: 45º/45º

5 Inspection Time

15 seconds

6 Defect Allowance

Under 5.0″ (include 5.0″): 3 5.0″ to 7.0″: 4 Above 7.0″: 6

5 ()3 5 ~ 7 4 7 6

6.2. Display Pattern
No. Items /Contents 1 No Display/Unstable Display
/ 2 Line defect
3 Display abnormally
4 Function Defective
5 Glass Crack
6 Spot Defect Including:
Black spot, White spot Foreign partic/le,Polarizer dirt, Cell particle

Type CR MA MI

Units()=mm

Standard —

Judgment
Not Allowed

—

Not Allowed

—

Not Allowed

—

Not Allowed

—

Not Allowed

Under 5.0″ (include 5.0″) 5

(a+b)/20.15

Allowed

0.15<(a+b)/20.25 3 max. 3

(a+b)/20.25

Not Allowed

Above 5.0″ 5

(a+b)/20.25

Allowed

0.25<(a+b)/20.5 3 max. 3

(a+b)/20.5

Not Allowed

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7 Line Defect Including: Black line, White line, Scratch
8 Polarizer Dent/Bubble
9 Bright dot defect (
10 Dark dot defect
11 Bright dot defect + Dark dot defect +
12 FPC or FFC broken FPC/FFC
13 PCBA defect PCBA
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Under 5.0″ (include 5.0″) ·5

a0.03

Allowed

0.03<a0.05 and b5.0 2 max. 2

a0.05 or b5.0

Not Allowed

Above 5.0″ 5 a0.03

Allowed

0.03<a0.05 and b5.0 4 max. 4

a0.05 or b5.0

Not Allowed

Under 5.0″ (include 5.0″) ·5

(a+b)/20.25

Allowed

0.25< (a+b)/20.5

3 max. 3

(a+b)/20.5

Not Allowed

Above 5.0″ 5 (a+b)/20.25

Allowed

0.25< (a+b)/20.5

3 max. 3

(a+b)/20.5

Not Allowed

Under 5.0″ (include 5.0″) 0 max.

5.0″ to 7.0″ 5 ~ 7

2 max. 2

Above 7.0″ 7

3 max. 3

3 consecutive dots 3

Not Allowed

Under 5.0″ (include 5.0″) 2 max.

5.0″ to 7.0″ 5 ~7

4 max. 4

Above 7.0″ 7

5 max. 5

3 consecutive dots 3

Not Allowed

Under 5.0″ (include 5.0″) 2 max.

5.0″ to 7.0″ 5 ~7

4 max. 4

Above 7.0″ 7

5 max. 5

—

Not Allowed

Refer to IPC-A-610

—

IPC-A-610

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6.3 .Quality Level and Sampling

Items Sampling Standard Sampling Level AQL level

Standard MIL-STD-105E
MA: AQL=0.65 MI: AQL=1.0

6.4 Handling Precaution
1. Never attempt to disassemble or rework LCD module
2. Never let LCD module contact with liquids
3. LCD module can be easily damaged by electrostatic charge. Please maintain an optimum anti-static working environment.
4. LCD panel is made with glass.
Any mechanical shock (eg. Vibration, distortion, extrusion, impactdrop) will damage the LCD module. 5. Avoid showing a display pattern on screen for a long time (continuous ON segment)
6. The color and evenness of the display may slightly vary with the temperature
7. Signal and Power supply excess the operation range may damage the LCD module
8. Avoid touching the LCD surface to prevent any scratch on its surface

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7 .Packing Drawing
Per Carton

LCD Module User Manual

LMT035DNJFWD-1

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