Product Description
Model: H018BQ30I4001
H018BQ30I4001 is a circular 1.8-inch TFT LCD module. This screen has a standard resolution of 360×360, achieving an equal-ratio circular display and IPS full-view display, ensuring clear visibility from multiple angles. It supports the MIPI 30-pin interface. It can be optionally equipped with a capacitive touch function, supporting sliding, clicking and other interactive operations. 1.8-inch TFT LCD Display is a high-resolution circular display specifically designed for compact smart devices, widely used in smart wearables, industrial control and smart home fields. For example: Smart Wearables: Widely used in smart watches, fitness trackers, health monitors, etc., displaying time, heart rate, steps, notifications, etc. The circular design is more in line with traditional watch aesthetics. Handheld and portable devices: Applied in electronic counters, instruments, portable detectors, providing intuitive data feedback and operation interface. Home automation control: As the display unit of home automation panels, thermostats, access control systems, it enhances interaction convenience. Industrial and medical equipment: Used in industrial control screens, medical instruments, operating stably in complex environments, supporting wide temperature operation (-20℃~+70℃).
Mechanical Drawing
Specification Parameters
| Feature |
Spec |
| Model Name | H018BQ30I4001 |
| LCD Size | 1.8 inch |
| Display Format | 360×360 |
| Interface | MIPI 30pin |
| Luminance | 400 cd/m² |
| Touch Screen | None, optional |
| Viewing Direction | ALL (IPS) |
| Color Depth | 16.7M |
| Driver IC | JD9855 |
| LCM (W x H x D) (mm) | 48.08(W) × 49.86(H) × 1.95(T) |
| Active Area (mm) | 45.684(W) × 45.684(H) |
| Operating Temperature | -20℃ ~ +70℃ |
| Storage Temperature | -30℃ ~ +80℃ |
| Operating Voltage | 6.0V |
Interface Definition
| Pin NO. |
Symbol |
I/O |
Description |
| 1 | TP_SCL | I/O | I2C Serial clock signal input for CTP |
| 2 | TP_SDA | I/O | I2C Serial data signal input for CTP |
| 3 | TP_INT | O | Interrupt signal input for CTP |
| 4 | TP_RST | I | Reset signal input for CTP |
| 5~6 | GND | P | Power Ground |
| 7 | TP_VDD | I | Power Supply for CTP |
| 8 | GND | P | Power Ground |
| 9 | D0P | I/O | MIPI-DSI data 0 lane positive input pin |
| 10 | D0N | I/O | MIPI-DSI data 0 lane Negative input pin |
| 11 | GND | P | Power Ground |
| 12 | CLKP | I | MIPI-DSI clock lane positive input pin |
| 13 | CLKP | I | MIPI-DSI clock lane negative input pin |
| 14~15 | GND | P | Power Ground |
| 16~17 | NC | - | Not Connect |
| 18 | GND | P | Power Ground |
| 19 | LEDK | P | LED backlight (Cathode) |
| 20 | LEDA | P | LED backlight (Anode) |
| 21 | VCC | P | Power Supply for Analog, Digital and Booster Circuit |
| 22 | IOVCC | P | Power Supply for I/O System |
| 23 | GND | P | Power Ground |
| 24~28 | NC | - | Not Connect |
| 29 | LCD_RST | I | Reset signal for LCM |
| 30 | LCD_TE | O | Tearing effect signal is used to synchronize MCU to frame |
Frequently Asked Questions (FAQ)
What are the primary applications of the H018BQ30I4001 display?
This circular 1.8-inch TFT LCD module is widely used in smart wearables (smartwatches, health trackers), handheld portable instruments, home automation systems (thermostats, smart panels), and industrial/medical monitoring equipment.
Does this 1.8-inch round display support touch interaction?
The standard display comes without touch, but an optional capacitive touch panel (CTP) is supported, enabling multi-touch gestures such as tapping and sliding.
What interface and driver IC are utilized in this module?
The module utilizes a high-speed MIPI 30-pin interface and is driven by the JD9855 IC, providing efficient transmission for dynamic and color-rich circular interfaces.
Can the screen be clearly seen in bright environments and from different angles?
Yes, it features an IPS display ensuring an ALL-direction full viewing angle without color shifting, coupled with a luminance of 400 cd/m² for vivid visualization.
What is the operating temperature range for this LCD screen?
The screen is built to operate reliably in wide-temperature environments, ranging from -20℃ to +70℃, with a storage tolerance from -30℃ to +80℃.
