Tags & Keywords
#TFT-LCD #2.0inch #240x320 #QVGA #IPS #262kColors #SPI #COG #LESSON #HighQualityCompact #IndustrialHMI #PortableDevice

Introduction
This document is the official product specification (Revision 1.0) for the LS020I12-S-V1, a 2.0-inch transmissive a-Si TFT-LCD module developed by LESSON Smart Display Technology Co., Ltd. Featuring a QVGA resolution of 240(RGB)×320, 262k colors, and an IPS panel, this compact module is engineered for applications demanding a small yet high-quality color display with wide viewing angles, such as advanced handheld instruments, portable medical devices, consumer electronics, and industrial human-machine interfaces.

Key Specifications

• Brand & Model: LESSON LS020I12-S-V1
• Screen Size: 2.0 inches (diagonal)
• Display Technology: Transmissive a-Si TFT-LCD, IPS
• Module Type: COG+FPC+B/L (Chip-On-Glass with Flexible Printed Circuit and Backlight)
• Display Resolution: 240(RGB) × 320 pixels (QVGA)
• Display Colors: 262k Colors
• Main LCD Driver IC:  ST7789P3
• Interface: 4-line Serial Interface (SPI) (Inferred from Timing Characteristics: CSX, SCL, SDA, D/CX)
• Module Size (W×H×D): 30.6(W) × 34.6(H) × 1.91(D) mm (Typical, from Outline Dimension notes)
• Active Area (W×H): 24.0 × 32.0 mm (Calculated from 2.0” diagonal and 240x320 resolution, 4:3 aspect ratio)
• Operating Temperature: -10°C ~ +60°C (from Physical Features notes)
• Storage Temperature: -20°C ~ +70°C (from Physical Features notes)
• Supply Voltage (VDD): 2.4V ~ 3.3V (Typical 2.8V, from Electrical Characteristics)
• Backlight: 3 Chip-White LED Parallel (IF=60mA, Vf=3V typ, from Physical Features notes)
• Compliance: ROHS

General Description
The LS020I12-S-V1 is a well-specified compact IPS display module. Its core features, derived from the provided specification document, include:

1. IPS Panel Technology: Provides superior viewing angles compared to standard TN panels.
2. Compact COG Structure: Saves space with Chip-On-Glass design and a thin FPC (总厚0.3mm).
3. Detailed Mechanical Data: Includes outline dimensions, AA area, and assembly notes (e.g., shell opening recommendations).
4. Complete Electrical & Timing Specs: Defines absolute maximum ratings, DC characteristics, and serial interface timing (though specific ns values are listed as TBD in the provided fragment).
5. Optical & Quality Standards: References electro-optical characteristics measurement methods and includes comprehensive inspection standards (AQL: Major 0.65, Minor 1.5) based on GB/T 2828-2003.

Key Features

• IPS Wide Viewing Angle: Ideal for applications where the screen is viewed from various angles.
• Ultra-Thin Profile: ~1.91mm module thickness enables sleek designs.
• Serial SPI Interface: Simplifies connection to microcontrollers with fewer pins.
• Comprehensive Documentation: Covers design, production, and inspection benchmarks.

Application Scenarios

• Handheld Industrial Terminals and Controllers
• Portable Medical Monitoring and Diagnostic Devices
• High-End Consumer Electronics (e.g., smart home controllers, advanced remote controls)
• Automotive Aftermarket Displays (e.g., dash cams, rearview mirrors)
• IoT Gateways with Status Display

Conclusion
The LESSON LS020I12-S-V1 is a high-performance 2.0-inch IPS display module that balances excellent visual quality with a compact form factor. Its detailed specification covering mechanical, electrical, optical, and quality aspects makes it a reliable and well-documented choice for demanding compact embedded display applications. For integration, the full specification document should be consulted for complete timing parameters and driver IC details.