Tags & Keywords
#TFT-LCD #3.97inch #480x800 #WVGA #IPS #16.7MColors #ST7701SN #MIPI-DSI #LESSON #RoHS

Introduction
This document is the official product specification for the LS0397I06-MP-V1, a 3.97-inch transmissive a-Si TFT-LCD module developed by LESSON Smart Display Technology Co., Ltd. Featuring an IPS panel, WVGA resolution of 480(RGB)×800, 16.7 million colors, and a MIPI DSI interface, this module is designed for applications requiring high-quality color display with wide viewing angles and a modern high-speed serial interface, such as smart home devices, portable multimedia players, advanced industrial controls, and mid-range handheld terminals.

Key Specifications

• Brand & Model: LESSON LS0397I06-MP-V1
• Screen Size: 3.97 inches (diagonal)
• Display Technology: Transmissive a-Si TFT-LCD, IPS (In-Plane Switching)
• Module Type: COG+FPC+B/L
• Display Resolution: 480(RGB) × 800 pixels (WVGA)
• Display Colors: 16.7 Million Colors
• Main LCD Driver IC: ST7701SN
• Interface: MIPI DSI (1 data lane + clock lane, as per pinout)
• Operating Temperature: -20°C ~ 70°C
• Storage Temperature: -30°C ~ 80°C
• Module Size (H×V×D): 55.44 × 96.17 × 2.05 mm
• Active Area (H×V): 52.04 × 86.39 mm
• Backlight: LED, If=40mA, Vf=15V (Typical)
• Power Supply: VDD (2.8V), IOVCC (1.8V)
• Compliance: ROHS

General Description
The LS0397I06-MP-V1 is a high-performance display module centered around an IPS panel for superior viewing angles and color consistency. Its core features are:

1. IPS Technology: Provides wide viewing angles, making it suitable for applications where the screen may be viewed from off-center positions.
2. Modern MIPI DSI Interface: Uses a differential serial interface (1 data lane + clock), reducing pin count and EMI compared to parallel RGB interfaces, ideal for compact and power-sensitive designs.
3. Detailed Timing Specifications: The document provides exhaustive timing characteristics for both High-Speed (HS) and Low-Power (LP) modes of the MIPI interface, as well as precise reset timing (TRW min 10µs, TRT max 5ms/120ms depending on mode), which is critical for reliable initialization.
4. Comprehensive Electro-Optical Definitions: Includes detailed definitions and measurement methods for contrast ratio, response time (Tr, Td), and viewing angle.

Key Features

• IPS Panel: Excellent viewing angle performance.
• MIPI DSI Interface: High-speed, low-EMI serial interface.
• Detailed Driver & Timing Specs: Based on ST7701SN driver with full HS/LP mode timing tables.
• Precise Mechanical & Electrical Data: Clear module and active area dimensions, power requirements.
• Structured Documentation: Includes block diagram, pin description, function description, and version records.

Pin Description (20-pin FPC) Highlights:

• Power: GND, VCC (3.3V?), IOVCC (1.8V)
• Control: RESET
• MIPI DSI: CLKP/CLKN (clock pair), D0P/D0N, D1P/D1N (data pairs)
• Backlight: LEDA (anode), LEDK (cathode)

Application Scenarios

• Smart Home Control Panels: Where wide viewing angles are important.
• Portable Media Players & Navigation Devices.
• Industrial HMI & Instrumentation.
• Fitness Equipment Displays.
• Any device requiring a 4-inch class display with modern interface and good visual performance.

Conclusion
The LESSON LS0397I06-MP-V1 is a technically well-specified 3.97-inch IPS display module that stands out for its combination of wide-viewing-angle technology and a detailed MIPI DSI interface specification. It is a strong choice for engineers seeking a quality display with a contemporary high-speed serial interface and reliable performance data.