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4-Inch Circular TFT LCD Module 720×720 MIPI 30pin Interface - Quality from China Suppliers & Factory
Product Description
H040R-30MB-A1 is a circular 4-inch TFT LCD module featuring an IPS panel with a resolution of 720×720, full viewing angle, MIPI 30-pin interface, JD9365DA Driver IC, and a brightness of 350 nit. The operating temperature range spans -20℃ to +70℃, and an optional touch screen is available.
- IPS Panel
- 720×720 Resolution
- MIPI 30-Pin Interface
- JD9365DA Driver IC
- 350 nit Brightness
- Optional Touch Screen
Automotive & Industrial
Instrument panels, navigation systems, and industrial control panels for real-time monitoring.
Professional Instruments
Aviation instruments, audio mixing consoles, and security monitoring terminals.
Smart Home & Control
Smart door locks, central control panels, and temperature control devices.
Medical & Industrial Control
Medical instruments and industrial control devices requiring reliable circular displays.
Mechanical Drawing
Specification Parameters
| Feature | Spec |
|---|---|
| Model Name | H040R-30MB-A1 |
| LCD Size | 4 inch |
| Display Format | 720×720 |
| Interface | MIPI 30pin |
| Luminance | 350 cd/m² |
| Touch Screen | None, optional |
| Viewing Direction | ALL |
| Color Depth | 16.7M |
| Driver IC | JD9365DA |
| LCM (W × H × D) | 105.6 (H) × 109.87 (V) × 2.1 (D) mm |
| Active Area | 101.52 (H) × 101.52 (V) mm |
| Operating Temperature | -20℃ ~ +70℃ |
| Storage Temperature | -25℃ ~ +75℃ |
| Operating Voltage | 18V |
Interface Definition
| Pin No. | Symbol | Description |
|---|---|---|
| 1 | LEDA | LED backlight anode |
| 2 | LEDK | LED backlight cathode |
| 3 | LEDK | LED backlight cathode |
| 4 | VCI | Power supply for the analog power |
| 5 | IOVCC | Power supply for the logic power and I/O circuit |
| 6 | RST | Reset signal (low active) |
| 7 | TE | Tearing effect output |
| 8 | PWM | The PWM frequency output for LCD driver control |
| 9 | GND | Power ground |
| 10 | TDP0 | MIPI-DSI data lane 0 positive input pin |
| 11 | TDN0 | MIPI-DSI data lane 0 negative input pin |
| 12 | GND | Power ground |
| 13 | TDP1 | MIPI-DSI data lane 1 positive input pin |
| 14 | TDN1 | MIPI-DSI data lane 1 negative input pin |
| 15 | GND | Power ground |
| 16 | TCP | MIPI-DSI clock lane positive input pin |
| 17 | TCN | MIPI-DSI clock lane negative input pin |
| 18 | GND | Power ground |
| 19 | TDP2 | MIPI-DSI data lane 2 positive input pin |
| 20 | TDN2 | MIPI-DSI data lane 2 negative input pin |
| 21 | GND | Power ground |
| 22 | TDP3 | MIPI-DSI data lane 3 positive input pin |
| 23 | TDN3 | MIPI-DSI data lane 3 negative input pin |
| 24 | GND | Power ground |
| 25 | TP_INT | INT pin for CTP |
| 26 | TP_SDA | SDA pin for CTP |
| 27 | TP_SCL | SCL pin for CTP |
| 28 | TP_RESET | Reset pin for TP |
| 29 | TP_VCI | VCI pin for CTP |
| 30 | TP_IOVCC | IOVCC pin for CTP |
Frequently Asked Questions
Q
What is the model number and key specification of this circular LCD module?
The model is H040R-30MB-A1. It is a 4-inch circular TFT LCD module with an IPS panel, 720×720 resolution, MIPI 30-pin interface, JD9365DA Driver IC, and 350 cd/m² brightness. The operating temperature range is -20℃ to +70℃.
Q
Does the H040R-30MB-A1 support touch screen functionality?
Touch screen is not included by default, but it is optionally available. The interface definition includes dedicated touch pins (TP_INT, TP_SDA, TP_SCL, TP_RESET, TP_VCI, TP_IOVCC) on pins 25–30 to support CTP (Capacitive Touch Panel) integration.
Q
What interface does this LCD module use, and how many data lanes does it support?
The H040R-30MB-A1 uses a MIPI DSI 30-pin interface with 4 data lanes (Lane 0–3) plus a dedicated clock lane (TCP/TCN), enabling high-speed data transmission suitable for high-resolution circular displays.
Q
What are the typical application scenarios for this 4-inch circular LCD module?
This module is widely used in automotive instrument panels, industrial control panels, aviation instruments, audio mixing consoles, security monitoring terminals, smart home devices (such as smart door locks and central control panels), temperature control devices, and medical instruments.
Q
What are the physical dimensions and active display area of the H040R-30MB-A1?
The overall LCM dimensions are 105.6 (H) × 109.87 (V) × 2.1 (D) mm. The active display area is 101.52 (H) × 101.52 (V) mm, forming a perfectly circular display region ideal for instrument-style applications.
Q
What is the operating voltage and color depth of this LCD module?
The H040R-30MB-A1 operates at 18V and supports a color depth of 16.7 million colors, ensuring vivid and accurate color reproduction for demanding display applications.