Product Overview
NoseDisplay ND040TRN720720-A01 is a round IPS TFT LCD module for smart appliance controls, instrument dashboards, home automation interfaces and embedded IoT equipment. Its circular screen suits graphical dials, menu navigation, sensor readings and operating status displays in custom OEM products. Engineers should confirm the model-specific display interface and pinout before selecting host hardware, firmware, power and backlight circuitry. STM32, ESP32, Arduino and Raspberry Pi projects require a driver solution matched to the confirmed configuration. NoseDisplay supports FPC integration, cover lens options and adapter board evaluation for circular LCD designs.
NoseDisplay ND040TRN720720-A01 is a round IPS TFT LCD module for appliance controls, instrument dashboards and embedded IoT interfaces. Its circular screen suits graphical dials and sensor readings. Confirm the display interface and pinout before choosing host hardware and firmware; STM32, ESP32, Arduino and Raspberry Pi projects require a matched driver solution. NoseDisplay supports OEM FPC integration, cover lenses and adapter board evaluation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | ND040TRN720720-A01 |
| Display Size | 4.0 Inch |
| Resolution | 720×720 pixels |
| Display Type | IPS TFT LCD |
| Display Mode | Transmissive |
| Touchscreen | None (touch options) |
| Outline Dimensions | 105.60 × 109.87 × 2.20 mm |
| Active Area | 101.52 × 101.52 mm |
| Parameter | Specification |
| Supply Voltage | 2.8 V |
| Luminance | — |
| Display Interface | — |
| Connection Type | 30-pin connector |
| IC | ST7703 |
| Weight | — |
| Operating Temperature | -20°C ~ 70°C |
| Storage Temperature | -30°C ~ 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 |
|---|---|---|
| 1-2 | LEDA | LED power anode |
| 3 | IOVCC | Power supply for digital interface |
| 4-6 | NC | NC |
| 7-8 | LEDK | LED power cathode |
| 9 | NC | NC |
| 10 | GND | Ground |
| 11 | D3P | MIPI DSI differential data pair. |
| 12 | D3N | MIPI DSI differential data pair. |
| 13 | GND | Ground |
| 14 | D2P | MIPI DSI differential data pair. |
| 15 | D2N | MIPI DSI differential data pair. |
| 16 | GND | Ground |
| 17 | CLKP | MIPI DSI differential clock pair. |
| 18 | CLKN | MIPI DSI differential clock pair. |
| 19 | GND | Ground |
| 20 | D1P | MIPI DSI differential data pair. |
| 21 | D1N | MIPI DSI differential data pair. |
| 22 | GND | Ground |
| 23 | D0P | MIPI DSI differential data pair. |
| 24 | D0N | MIPI DSI differential data pair. |
| 25 | GND | Ground |
| 26 | TE | TE.PIN |
| 27 | RESET | RESET.PIN |
| 28 | VCC | Power setting |
| 29-30 | NC | NC |
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 order quantity.
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 & Customization
NoseDisplay supports round TFT LCD and rotary knob display projects for smart controls, appliances, instruments, robotics and embedded IoT devices. OEM engineering support covers display selection, circular UI layouts, mechanical design, touch and cover lenses, FPC connections and driver board integration.
Explore round LCD and rotary knob display applications, with OEM support for display selection, circular UI layouts, housings, cover lenses and driver boards.
BCDTEK Industrial ParkTypical Applications
Illustrative applications across our round display and rotary knob range. Display size, touch, enclosure and driver hardware are selected for each project.
Smart Home Controls
Round thermostat displays for HVAC settings, room temperature and smart home control.
Smart Appliance Controls
Round LCD interfaces for blender modes, kitchen appliances and operating status.
Rotary Control Interfaces
Circular knob displays for audio volume adjustment, menu navigation and parameter selection.
Motorcycle Dashboards
Circular instrument displays for speed, vehicle status and dashboard information.
Robot Eye Displays
Miniature circular screens for animated robot eyes, expressions and interactive devices.
Robotic Lawn Mowers
Round equipment displays for mowing modes, battery status and local controls.
Monitoring Instruments
Circular readouts for sensor values, measurement status and equipment monitoring.
AI Desktop Companions
Round displays for animated expressions, assistant status and interaction in AI companion devices.
Customization Options
Engineering options are evaluated according to the selected module and OEM project requirements.
Display & UI Options
Review round display size, resolution, brightness and circular UI layouts for your OEM application.
Knob & Housing Design
Evaluate knob dimensions, enclosure materials, mounting details and mechanical fit for your product.
PCB & Interface Integration
Review FPC connections, adapter PCBs, driver boards and host interfaces for the selected display.
Prototype & Firmware Evaluation
Evaluate display driving, animation firmware and controller compatibility during prototype development.
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.
