Tags & Keywords
#TFT-LCD #IPS #SPI #1.45inch #172x320 #262KColors #COG #Transmissive #TallDisplay #EmbeddedDisplay #WearableTech #IndustrialHMI #MCUInterface #WideViewingAngle #RoHS #LESSON #SmartDisplay
Introduction
This document is the official product specification for the LS0145I05-S-V1, a compact 1.45-inch tall transmissive a-Si TFT-LCD module developed by LESSON Smart Display Technology Co., Ltd. Featuring a resolution of 172x320 pixels, 262K colors, and an IPS panel for wide viewing angles, this module is designed for applications requiring a narrow, tall display format. With its simple 4-line SPI interface and comprehensive specifications, it serves as a practical solution for wearable devices, portable medical instruments, and various embedded systems.
Key Specifications
- Brand & Model: LESSON Smart Display LS0145I05-S-V1
- Screen Size: 1.45 inches (diagonal)
- Active Area: 17.39 mm (H) × 32.35 mm (V)
- Driver IC: ST7789P3
- Display Technology: Transmissive type a-Si TFT-LCD
- Display Mode: Transmissive, IPS (In-Plane Switching)
- Module Type: COG + FPC + B/L
- Display Resolution: 172(RGB) × 320 pixels
- Display Colors: Up to 262K Colors
- Module Outline Dimensions: 19.39 mm (H) × 36.28 mm (V) × 1.88 mm (D)
- Interface: 4-line Serial Interface (SPI) (Pins: CS, SCL, SDA, RS, RESET)
- Supply Voltages:
- VDD (Main Power): 2.4V ~ 3.3V (Typical implied)
- Absolute Maximum Ratings:
- VDD: -0.3V to +4.6V
- Operating Temperature (T_OPR): -20°C to +70°C
- Storage Temperature (T_STR): -30°C to +80°C
- Backlight: Integrated LED backlight (Pins: LEDA, LEDK)
- Environmental Compliance: RoHS Compliant
General Description
The LS0145I05-S-V1 is a space-efficient display module with a tall aspect ratio, ideal for displaying lists, notifications, or vertical status information. The IPS panel ensures good viewing characteristics. The module is controlled via a standard 4-line SPI interface, requiring minimal host MCU pins for communication (Chip Select CS, Serial Clock SCL, Serial Data SDA, Command/Data Select RS, and Reset).
The specification provides a clear pin description table for its 10-pin FPC connector. It includes a section on serial interface timing characteristics (4-line serial), although the specific timing parameters (TBD) are to be defined in the full document. These typically include chip select setup/hold times, serial clock cycle width, and data setup/hold times for reliable communication.
Pin Description
| PIN NO. | Symbol | I/O | Description |
|---|---|---|---|
| 1 | SDA | I/O | Serial data input/output pin |
| 2 | SCL | I | Serial clock pin |
| 3 | RS | I | Command and Data select pin |
| 4 | RESET | I | Reset pin |
| 5 | CS | I | Chip select pin |
| 6 | GND | P | Ground |
| 7 | VDD | P | Power supply (2.4-3.3V) |
| 8 | LEDK | P | Power for LED backlight cathode |
| 9 | LEDA | P | Power for LED backlight anode |
| 10 | GND | P | Ground |
Application Scenarios
- Wearable Devices: Smart bands, fitness trackers, compact smartwatches.
- Portable Medical Devices: Glucose meter displays, compact monitor readouts.
- Industrial Handhelds: Narrow format displays for meters, scanners.
- Consumer Electronics: Secondary displays for gadgets, smart accessories.
- IoT Devices: Status displays for sensors, controllers.
Conclusion
The LESSON Smart Display LS0145I05-S-V1 is a compact and practical display solution. Its tall format, IPS quality, and simple SPI interface make it easy to integrate into space-constrained designs, providing a reliable user interface for a variety of portable and embedded applications.
