2.1-inch 480x480 Circular display
2.1-inch Circular display, RGB/MIPI interface, IPS display mode, mainly applied to the smart home market
Main parameters of 2.1-inch circular display
| ITEM | Standard value | UNIT |
| Display SIZE | 2.1 | INCH |
| Display Type | a-Si | — |
| Driver Element | Active Matrix | — |
| Number of Dots | 480*480 | Dots |
| Display Color | 16.7M | — |
| Pixel Pitch (W*H) | 0.135*0.135 | mm |
| Active Area | Ø53.28 | mm |
| Viewing Direction | all direction | — |
| Control IC | ST7701 | — |
| Module Size(W*H*T) | 56.18(H) x 59.17(V) x2.3 (D) | mm |
Download relevant technical documents
ST7701 data sheet for small lcd display
Specification of 2.1-inch small lcd display
initial code for 2.1-inch small lcd display
Customize the length, width and thickness of FPC or cable, adjust the pin arrangement according to the interface type, and select the appropriate connector. Make your display or circuit board simple and safe with an excellent FPC solution.
A touch screen can be added according to your requirements, there are three options: resistive touch screen, capacitive touch screen, infrared touch screen. Or add protective glass as needed
Display screens with different optical parameters can be designed according to needs, such as brightness, color gamut, response time, gamma and other parameters, and anti-glare, anti-fingerprint coatings, etc. can also be added
The circuit board we designed can convert the interface of your display into an HDMI interface. If your product does not have any display control capabilities, you can use our serial display and only need to use simple commands to control the displayed content through RS232/458
2.1-inch tft display drawings and interfaces
The 2.1-inch circular display is a high-resolution display with a resolution of 480×480, and its advanced IPS mode technology ensures vivid and accurate colors at any viewing angle, bringing a superior viewing experience to your device. The driver IC is ST7701, which supports RGB and MIPI interfaces.
The backlight of the 2.1-inch circular display adopts 4 LEDs connected in parallel, the working voltage is 3V, the working current is 80mA, and the brightness of the module is as high as 300cd/㎡.
The monitor has a ZIF connector to make installation simple and easy. Plus, it allows for easy replacement of the display if needed. If you need touch input, opt for a capacitive touchscreen plug-in, which provides a highly responsive and intuitive input experience. Its compact size and high performance make it an excellent choice for a variety of applications, including smart watches, fitness trackers, and other handheld devices.
The outline drawing is as follows:
Interfaces are defined as follows：
| Pin | Symbol | detail |
| 1 | LEDA | LED Anode |
| 2 | LEDK | LED Cathode |
| 3 | LEDK | LED Cathode |
| 4 | GND | |
| 5 | VCI | power supply |
| 6 | RESET | |
| 7 | NC | |
| 8 | NC | |
| 9 | SDA | SPI Data signal |
| 10 | SCK | SPI Clock signal |
| 11 | CS | SPI Chip select signal |
| 12 | PCLK | RGB dot clock signal |
| 13 | DE | RGB data enable signal |
| 14 | VSYNC | RGB frame synchronizing signal |
| 15 | HSYNC | RGB line synchronizing signal |
| 16 | DB0 | data signal |
| 17 | DB1 | |
| 18 | DB2 | |
| 19 | DB3 | |
| 20 | DB4 | |
| 21 | DB5 | |
| 22 | DB6 | |
| 23 | DB7 | |
| 24 | DB8 | |
| 25 | DB9 | |
| 26 | DB10 | |
| 27 | DB11 | |
| 28 | DB12 | |
| 29 | DB13 | |
| 30 | DB14 | |
| 31 | DB15 | |
| 32 | DB16 | |
| 33 | DB17 | |
| 34 | GND | |
| 35 | TP-INT | Touch Interrupt |
| 36 | TP -SDA | Touch IIC Data signal |
| 37 | TP-SCL | Touch IIC Clock signal |
| 38 | TF-RESET | Touch Reset Signal |
| 39 | TP-VCI | Touch Power supply |
| 40 | GND |
