2.1" inch Round TFT LCD, round TFT LCD 2.1" Description
Tianxianwei TXW210001B0 is a circular TFT LCD module with a diagonal size of 2.1 inches and a resolution of 480 * 480 pixels. This module is equipped with ST7701S; It includes controller and driver IC functions, supports RGB 18 BIT interface, and has a power supply voltage (VDD) range of 2.8V to 3.3V, with a typical value of 3V
The TXW210001B0 TFT LCD module is in circular mode with a brightness of 450 nits (typical value). This module can also be used for PCAP (Projection Capacitive Touch Screen) optional. It can operate at temperatures ranging from -20 ℃ to+70 ℃; Its storage temperature range is -30 ℃ to+80 ℃. This 2.1-inch TFT LCD module is widely used in smart home appliances, smart remote controls, smart rotary switches, children's education, medical instruments, automotive intelligent interconnection and other products.
| Product: | Circular TFT LCD 2.1" inch | Resolution: | 480*480 Dots |
| Interface: | RGB 18 BIT | Touch Screen: | without |
| Viewing Direction: | IPS (80/80/80/80) | Driver IC: | ST7701S |
| Pin Number: | 40 Pins | Module Size: | 56.18*59.71*2.2mm |
| Active Area: | 53.28mm Diameter | Connection: | Connector Type ( Customizable) |
| Surface Luminance: | 450 Cd/m² (nits) | Operating Temp.: | -20℃ To +70℃ |
| LED Lifetime: | 30,000 Hours | Compliance: | CE & FCC & RoHS Compliant |
2.1" inch Round TFT LCD, Circular TFT LCD 2.1" Drawing
Back-Light Unit Characeristics
The back-light system is an edge-lighting type with4 white LEDs. The characteristics of the back-light
are shown in the following tables.
| Characteristics | Symbol | Min. | Type | Max. | Unit | Notes |
| Forward Voltage | VF | 2.8 | | 3.2 | V | - |
| Forward current | IF | -- | 80 | - | mA | - |
| Luminance(With LCD) | Lv | | 450 | -- | cd/m2 | - |
| LED life time | N/A | ---- | 30,000 | -- | Hr | Note 1 |
Note:
(1) The “LED life time” is defined as the module brightness decrease to 50% of original brightness at IL=20mA/LED. The LED life time could be decreased if operating IL is larger than 25mA/LED.
Module Function Description
| Pin No. | Symbol | LCM Functional |
| 1 | LEDA | Power supply for backlight anode input terminal. |
| 2 | LEDK | Power supply for backlight cathode input terminal. |
| 3 | LEDK | Power supply for backlight cathode input terminal. |
| 4 | GND | Power Ground |
| 5 | VC1 | Power supply : 2.6V ~ 3.6V |
| 6 | RESET | Reset signal input terminal. Active at ‘L’. |
| 7 | NC | NC |
| 8 | NC | NC |
| 9 | SDA | Input/Output signal pin |
| 10 | SCK | Serial interface clock |
| 11 | CS | Chip select signal input pin |
| 12 | PCLK | Dot clock signal for RGB interface operation. |
| 13 | DE | Data enable signal for RGB interface operation. |
| 14 | VSYNC | Vertical (Frame) synchronizing input signal for RGB interface operation. |
| 15 | HSYNC | Horizontal (Line) synchronizing input signal for RGB interface operation. |
| 16~33 | DB0~DB17 | RGB interface data bus. |
| 34 | GND | Power Ground |
| 35 | CTP_INT | Touch panel interrupt output |
| 36 | CTP_SDA | Touch panel I2C data |
| 37 | CTP_SCL | Touch panel I2C clock |
| 38 | CTP_RST | Touch panel reset |
| 39 | CTP_VCI | Touch panel Power supply 2.8~3.3V |
| 40 | GND | Power Ground |
2.1" inch Round TFT LCD, Circular TFT LCD 2.1" Real Product Image
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