LCD Description
The Vertical Bar LCD Screen 1.9 inch is an exceptional, ultra-narrow strip TFT liquid crystal display engineered specifically for modern, space-constrained applications. Featuring a unique aspect ratio and a crisp resolution of $170 \times 320$ pixels, this mini commercial-grade display provides hardware developers with the ideal form factor for next-generation smart devices, smart home thermostats, electric toothbrushes, and automotive dashboard sub-screens.
When choosing a 1.9 inch Bar LCD Display for industrial or consumer electronics, optical performance and structural reliability are paramount. This model utilizes premium IPS (In-Plane Switching) display technology. Unlike traditional TN screens that suffer from color inversion and contrast degradation when viewed from an angle, our IPS panel guarantees full, all-direction wide viewing angles. This means your user interface remains sharp, vibrant, and perfectly legible whether viewed from above, below, or from the sides.
| Item | Contents | Unit |
| Size | 1.9 | inch |
| LCM Dimension | 25.80（H）* 49.72（V） * 1.97(D) | mm |
| LCD Active Area | 22.695(H)* 42.72(V) | mm |
| Number OfDots | 170 * RGB * 320 | pixel |
| LCD Type | a-Si TFT | |
| Viewing Direction | ALL O’clock | |
| Driver IC | ST7789V | |
| Interface Type | MCU | |
| Operating Temperature | -20℃~ 70℃ | |
| Storage Temperature | -30℃~ 80℃ | |
| Backlight | 320 | cd/m² |
| Touchscreen | TBD |
Drawing
MCU Interface
| NO. | Symbol | Description | |||
| 1 | GND | PowerGround | |||
| 2 | VCI | PowerSupplyforI/Osystem.IOVCC=1.65V-3.3V | |||
| 3-4 | IM2,IM1 | IM1 | IM2 | MPUInterfaceMode | |
| 0 | 0 | 80-8bitparallel | |||
| 1 | 1 | 4-line8bitserial | |||
| 5 | RES | Thissignalwillresetthedeviceanditmustbeappliedtoproperlyinitialize thechip.Signalisactivelow. | |||
| 6 | CS | Chipselectionpin;Lowenable,highdisable. | |||
| 7 | D/C | Displaydata/commandselectionpininparallelinterface.Thispinisusedto beserialinterfaceclock | |||
| 8 | WR | WriteenableinMCUparallelinterface.Displaydata/commandselectionpinin 4-lineserial interface. | |||
| 9 | RD | RedaMCUparallelinterface | |||
| 10 | SDA | SPIinterfaceinput/outputpin. ThedataislatchedontherisingedgeoftheSCLsignal. -Ifnotused,pleasefixthispinatVDDIorDGNDlevel. | |||
| 11-18 | DB0-DB7 | MCUparallelinterfacedata | |||
| 19 | SD0 | SPIinterfaceoutputpin. ThedataisoutputonthefallingedgeoftheSCLsignal. -If notused,letthispinopen. | |||
| 20 | LEDA | LEDAnode | |||
| 21-24 | LEDK | LEDCathode | |||
| 25 | GND | PowerGround | |||
| 26-29 | NC | NoConnect. | |||
| 30 | GND | PowerGround | |||
