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LESSON Smart Display LSL0397I06-MP-V1 (Driver IC: ST7701SN) – 3.97" HVGA MIPI Module for Compact Embedded Devices

Tags & Keywords
#TFT-LCD #MIPI #3.97inch #480x800 #16.7MColors #HVGA #CompactDisplay #EmbeddedDevice #WearableTech #IoTDisplay #RoHS #LESSON #SmartDisplay

Introduction
This document is the official product specification for the LSL0397I06-MP-V1, a 3.97-inch transmissive a-Si TFT-LCD module developed by LESSON Smart Display Technology Co., Ltd. Featuring a resolution of 480(RGB)x800, 16.7 million colors, and a compact form factor, this module is designed for space-constrained embedded applications. With its MIPI DSI interface and detailed electrical/timing specifications across multiple revisions, it serves as a reliable solution for compact IoT devices, wearable technology, portable instruments, and various embedded systems.

Key Specifications

  • Brand & Model: LESSON Smart Display LSL0397I06-MP-V1
  • Screen Size: 3.97 inches (diagonal)
  • Active Area: [To be confirmed from mechanical spec]
  • Driver IC: ST7701SN
  • Display Technology: Transmissive type a-Si TFT-LCD
  • Display Mode: Transmissive
  • Module Type: TFT-LCD module with driver circuit and backlight unit.
  • Display Resolution: 480(RGB) × 800 pixels
  • Display Colors: Up to 16.7 Million Colors
  • Interface: MIPI DSI
  • Supply Voltages:
    • VCC (Core Power): 2.5V ~ 3.6V (Typical: 2.8V)
    • IOVCC (I/O Power): 1.65V ~ 3.3V (Typical: 1.8V)
  • Absolute Maximum Ratings (from 2024-10-30 rev):
    • VCC / IOVCC: -0.3V to +4.6V
    • Operating Temperature (T_OPR): -10°C to +60°C
    • Storage Temperature (T_STR): -20°C to +70°C
  • DC Electrical Characteristics: Defines VIL, VIH levels.
  • Pin Description: 20-pin connector (simpler than 40-pin of 5" models) with MIPI data lanes (D0, D1), clock (CLK), power, ground, reset (RESET), and backlight (LEDA, LEDK).
  • Interface Timing: Includes detailed MIPI DSI timing for High-Speed mode (UI, tDS, tDH) and mode transitions (TLPX, THS-PREPARE, TCLK-TRAIL, etc.), specified across multiple revisions.
  • Environmental Compliance: RoHS Compliant

General Description
The LSL0397I06-MP-V1 is a compact display module designed for smaller devices. It uses the MIPI DSI interface but with a reduced pin count (20-pin), reflecting its smaller size and potentially simpler backlight arrangement. The specification has undergone several revisions (e.g., 2024-07-12, 2024-09-09, 2024-10-30), with updates likely to electrical ratings and timing parameters. It provides exhaustive MIPI DSI timing characteristics, covering both the high-speed data transmission phase and the critical low-power state entry/exit timings, which are vital for power management and link stability.

Key Features

  • Compact Size: 3.97" diagonal, suitable for very small devices.
  • Simplified Connector: 20-pin FPC, easier to route in tight spaces.
  • Detailed MIPI Timing: Multiple tables ensure robust link design.
  • Revised Specifications: Indicates active product maintenance and improvement.

Application Scenarios

  • Compact IoT Devices: Smart sensors, industrial tags with displays.
  • Wearable Technology: Advanced smart bands, compact health monitors.
  • Portable Instruments: Handheld medical devices, miniature test equipment.
  • Consumer Electronics: Compact gadgets, accessory displays.
  • Hobbyist Projects: Where a smaller MIPI display is needed.

Conclusion
The LESSON Smart Display LSL0397I06-MP-V1 is a meticulously documented, compact display solution. Its detailed and revised MIPI timing specifications demonstrate a focus on reliable high-speed serial communication, making it an excellent choice for developers of next-generation compact and portable embedded devices that require a quality graphical interface within a minimal footprint.

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Eddie Chen
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