Product Overview
The NoseDisplay ND039TSN320320-A01 is a 3.9-inch IPS TFT display module with a 320×320 image format and MCU/SPI interface options. Its ST7796 controller is identified in the module parameters, while the required operating configuration should be checked in the model-specific documentation. The square display format can be evaluated for embedded control interfaces, smart home panels and compact instruments. Engineers should confirm host signaling, initialization, connector pin assignments and enclosure fit before integration. NoseDisplay provides specification and drawing support for module evaluation and discussions of touch or other customization requirements.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | ND039TSN320320-A01 |
| Display Size | 3.9 inch |
| Resolution | 320×320 pixels |
| Display Type | IPS TFT LCD |
| Display Mode | Transmissive |
| Touchscreen | No (Optional with Yes) |
| Outline Dimensions | 74.72 × 76.86 × 2.10 mm |
| Active Area | 71.136 × 69.824 mm |
| Parameter | Specification |
| Supply Voltage | 2.8V-3.3V |
| Luminance | 320 cd/m² |
| Display Interface | MCU/SPI |
| Connection Type | 40 pin connector |
| IC | ST7796 |
| Weight | -- |
| Operating Temperature | −20°C to +70°C |
| Storage Temperature | −30°C to +80°C |
Mechanical Drawing & Interface Definition
Please refer to the model-specific TFT-LCD specification for mechanical drawings, dimensions, FPC connection details and pin definitions. Visit our Download Center for available datasheets, or contact an engineer to request documentation for your model.

PIN Description
| Pin No. | Symbol | Description |
|---|---|---|
| 01 | LEDK | Backlight Cathode |
| 02 | LEDA | Backlight Anode |
| 03 | GND | Ground |
| 04 | VCC | POWER SUPPLY |
| 05 | IOVCC | I/O POWER SUPPLY |
| 06 | GND | Ground |
| 07 | RESET | Reset |
| 08 | CS | Chip Select |
| 09 | RS | Data/Command Select |
| 10 | WR | Write Enable |
| 11 | RD | Read Enable |
| 12 | GND | Ground |
| 13 | IM0 | Interface Mode Select |
| 14 | IM1 | Interface Mode Select |
| 15 | IM2 | Interface Mode Select |
| 16 | SDO | Serial Data Output |
| 17 | SDA | SPI Data |
| 18 | GND | Ground |
| 19 | DB0 | Data Bus |
| 20 | DB1 | Data Bus |
| 21 | -- | -- |
| 22 | DB3 | Data Bus |
| 23 | DB4 | Data Bus |
| 24 | -- | -- |
| 25 | DB6 | Data Bus |
| 26 | DB7 | Data Bus |
| 27 | DB8 | Data Bus |
| 28 | DB9 | Data Bus |
| 29 | DB10 | Data Bus |
| 30 | DB11 | Data Bus |
| 31 | DB12 | Data Bus |
| 32 | DB13 | Data Bus |
| 33 | DB14 | Data Bus |
| 34 | DB15 | Data Bus |
| 35 | GND | Ground |
| 36 | CTP-VDD | Touch Power Supply |
| 37 | -- | -- |
| 38 | CTP-SCL | Touch I2C Clock |
| 39 | CTP-INT | Touch Interrupt |
| 40 | STP-RST | Touch Reset |
Sample Ordering & Delivery
Samples are available for engineering evaluation. Shipping excludes import duties and taxes. Estimated delivery times are in calendar days, including 4 days of preparation. Final terms are confirmed before payment.
Sample MOQ
3 pcs per modelMinimum 3 pcs per model.
Preparation Time
4 daysAfter order and payment confirmation.
Standard Delivery
Shipping Fee
Transit Time: ~11 days
Total Time: ~15 days
Express Delivery
Shipping Fee
Transit Time: ~4 days
Total Time: ~8 days
Typical Applications

Industrial Control

Smart Home Panels

Portable Instruments

Embedded IoT Devices
TFT LCD displays are widely used in industrial control panels, handheld instruments, smart home devices, embedded systems, IoT equipment, medical devices and other human-machine interface applications requiring clear, responsive visual output.
Customization Options
Engineering support for display selection, FPC integration, cover lenses, touch solutions and driver boards for OEM projects.
FPC & Connector Integration

FPC length, pinout, routing and connector position can be evaluated against your host PCB and enclosure requirements.
Panel & Interface Selection

Evaluate TFT panel options for resolution, brightness, viewing angle and interface, subject to the selected display IC.
PCB & Driver Board Design

Adapter PCBs and driver boards can be reviewed for host interfaces, power design and mechanical integration.
Touchscreen & Cover Lens

Capacitive or resistive touch, cover glass and PMMA lenses can be evaluated for your enclosure and application.
Quality & Compliance Support
We provide quality and compliance documentation for qualified OEM projects
based on the selected module, BOM and manufacturing configuration.
RoHS
EU RoHS compliant materials and process control
REACH
Support REACH regulation compliance
Reliability Testing
Environmental & mechanical reliability testing reports
ESD Control
ESD protection design and testing capability
Quality System
Manufactured under a certified quality management system
Documentation availability and scope are confirmed according to the selected module, BOM, manufacturing source and project requirements.
