Introduction
This document is the official product specification for the LS071I01-S-V1, a 0.71-inch transmissive a-Si TFT-LCD module developed by LESSON Smart Display Technology Co., Ltd. Featuring an IPS panel, a square resolution of 160(RGB)×160, and 262 thousand colors, this module is an ultra-compact, high-quality micro-display designed for applications with extreme space constraints where a small, viewable color screen is required, such as smart wearables (e.g., compact smartwatches, fitness trackers), miniature IoT devices, medical sensors, and advanced remote control interfaces.

Key Specifications

• Brand & Model: LESSON LS071I01-S-V1
• Screen Size: 0.71 inches (diagonal)
• Display Technology: Transmissive a-Si TFT-LCD, IPS (In-Plane Switching)
• Module Type: COG+FPC+B/L
• Display Resolution: 160(RGB) × 160 pixels (Square)
• Display Colors: 262 Thousand Colors
• Main LCD Driver IC: GC9D01N
• Interface: SPI (Serial Peripheral Interface, inferred from typical driver and pinout)
• Operating Temperature: -20°C ~ 70°C
• Storage Temperature: -30°C ~ 80°C
• Backlight: 1 Chip White LED, If=20mA, Vf=3V (Typical)
• Compliance: ROHS
• Key Mechanical Dimensions (from drawing):
  • LCM (Module) Thickness: 1.9 ±0.15 mm
  • FPC+PI Stiffener Total Thickness: 0.3 mm
  • LCD Thickness: 0.8 mm
  • Polarizer (POL) Thickness: 0.15 mm

General Description
The LS071I01-S-V1 is a miniaturized display module that packs notable features into a tiny footprint:

1. IPS Technology: Despite its small size, it utilizes IPS for wide viewing angles, ensuring the display remains visible even when viewed from sharp angles, which is critical for wearable devices on the wrist.
2. Ultra-Compact Form Factor: The 0.71-inch diagonal and total module thickness under 2mm make it ideal for integration into very small products.
3. Detailed Mechanical & Assembly Notes: The specification includes critical design-for-manufacturing (DFM) guidelines:
   • Bezel Opening Recommendation: The housing's visible opening should be at least 0.3mm smaller than the module's viewing area (VA) on each side to prevent light leakage and ensure a clean aesthetic.
   • Foam Gasket Opening: The foam gasket opening should be at least 0.6mm larger than the VA on each side to avoid mechanical pressure on the active area.
   • TP (Touch Panel) Warning: The touch panel edge must not contact metal conductors.
4. Complete Pinout: The 12-pin FPC interface is fully defined, including SPI signals (SCL, SDA, CS), reset (RES), power (VDD, GND), and backlight control (LEDA, LEDK).

Key Features

• IPS Panel in Micro Size: Superior viewing angle performance for its class.
• Extremely Small and Thin: 0.71-inch diagonal, ~1.9mm thick.
• Critical Mechanical Integration Guidelines: Clear instructions to prevent common assembly issues.
• Simple SPI Interface: Easy to connect to microcontrollers with limited pins.
• Low Power Backlight: Single LED, 20mA drive.

Application Scenarios

• Compact Smartwatches & Fitness Bands: For status icons and basic info.
• Miniature IoT Device Dashboards: Smart home sensors, tiny controllers.
• Portable Medical Monitors: Vital sign displays.
• Advanced Remote Controls & Accessories.
• Any product where display real estate is severely limited.

Conclusion
The LESSON LS071I01-S-V1 is a specialized, high-performance micro-display that combines IPS viewing quality with an ultra-compact form factor. It is the premier choice for designers of cutting-edge miniaturized electronics who refuse to compromise on display readability.