LESSON Smart Display LSC043I08-R-V1 (Driver IC: ST7701SN) – 4.3" 480×800 SPI/Parallel TFT Module for Cost-Effective Embedded Displays

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Introduction
This document is the official product specification for the LSC043I08-R-V1, a 4.3-inch transmissive a-Si TFT-LCD module developed by LESSON Smart Display Technology Co., Ltd. Featuring a resolution of 480(RGB)×800, 16.7 million colors, and support for both SPI and parallel RGB interfaces, this module is a versatile and economical display solution. It is well-suited for consumer appliances, basic industrial controls, smart home interfaces, educational kits, and entry-level portable devices where a balance of screen size, color capability, and interface flexibility is needed at a competitive cost.

Key Specifications

  • Brand & Model: LESSON Smart Display LSC043I08-R-V1
  • Screen Size: 4.3 inches (diagonal) | 63.96 ×105.73 ×3.42mm
  • Active Area: 56.16×93.6mm
  • Driver IC: ST7701SN
  • Display Technology: Transmissive type a-Si TFT-LCD
  • Module Type: TFT-LCD Module
  • Display Resolution: 480(RGB) × 800 pixels
  • Display Colors: Up to 16.7 Million Colors
  • Interface: SPI (Pins: CS, SCL, SDI, SDO) & Parallel RGB (18-bit: R0-R5, G0-G5, B0-B5)
  • Absolute Maximum Ratings:
    • Supply Voltage (VCC, IOVCC): -0.3V to 3.6V
    • Operating Temperature (Topr): -20°C to +70°C
    • Storage Temperature (Tstg): -30°C to +80°C
  • Electrical Characteristics (Typical):
    • VCC: 2.8V (2.5~3.6V)
    • IOVCC: 1.8V (1.65~3.3V)
    • LCD Drive Current (ILCD): TBD
  • Pin Description (36-pin connector): Includes SPI pins, parallel RGB data bus, control signals (HSYNC, VSYNC, DE, DCLK), backlight (LED+/LED-), and ID/CABC function pins.
  • Interface Timing: Provides timing parameters for both parallel RGB mode (setup/hold times for data, sync, clock) and SPI mode.
  • Optical Characteristics (Typical):
    • Response Time (Tr+Tf): 25 ms
    • Contrast Ratio (CR): 1000:1
    • Viewing Angle (CR>10): 80° (All directions)
    • White Chromaticity: Wx=0.304, Wy=0.345
    • Luminance: 350 cd/m² @ IF=20mA
  • Environmental Compliance: RoHS Compliant

General Description
The LSC043I08-R-V1 is a classic and flexible embedded display module. Its specification provides a clear pinout supporting two interface modes, allowing developers to choose between the simple, low-pin-count SPI for basic graphics or the faster parallel RGB interface for full-motion video. The document includes absolute ratings, DC characteristics, detailed pin descriptions, and timing specs for both interfaces, as well as key optical performance data. The inclusion of CABC (Content Adaptive Brightness Control) and LCD_ID pins adds functionality for power saving and panel identification. This makes it a practical and adaptable choice for a wide range of projects.

Key Features

  • Dual Interface Support (SPI & Parallel RGB): Maximum flexibility for different host capabilities.
  • Functional Pins (CABC, LCD_ID): Enables advanced features like power saving.
  • Complete Timing Specs for Both Modes: Ensures reliable communication.
  • Good Optical Performance: 350 nits brightness and 1000:1 contrast.
  • Cost-Effective 4.3" Solution: Popular size for many applications.

Application Scenarios

  • Consumer Appliances: Smart thermostats, coffee makers, air purifiers.
  • Basic Industrial HMIs: For simple machine control and status.
  • Smart Home Control Panels: Centralized home automation interfaces.
  • Educational Electronics Kits: For learning embedded graphics.
  • Entry-Level Portable Devices: Basic data loggers, handheld testers.

Conclusion
The LESSON Smart Display LSC043I08-R-V1 is a reliable, flexible, and well-documented module perfect for cost-sensitive embedded projects that require a color display with interface options.