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LESSON Smart Display LSC035I02-R-V1 (Driver IC: ST7701S) – 3.5" 320×480 IPS TFT Module with Capacitive Touch

Tags & Keywords
#TFT-LCD #3.5inch #320x480 #HVGA #IPS #16.7MColors #CapacitiveTouch #ST7701S #RGBInterface #LESSON #RoHS

Introduction
This document is the official product specification for the LSC035I02-R-V1, a 3.5-inch transmissive a-Si TFT-LCD module developed by LESSON Smart Display Technology Co., Ltd. Featuring an HVGA resolution of 320(RGB)×480, 16.7 million colors, an IPS panel, an integrated Capacitive Touch Panel (CTP), and an RGB interface, this module is a complete touch-display solution designed for interactive applications such as industrial HMIs, smart home controls, and portable multimedia devices.

Key Specifications

  • Brand & Model: LESSON LSC035I02-R-V1
  • Screen Size: 3.5 inches (diagonal)
  • Display Technology: Transmissive a-Si TFT-LCD, IPS
  • Module Type: COG+FPC+B/L+CTP
  • Display Resolution: 320(RGB) × 480 pixels (HVGA)
  • Display Colors: 16.7 Million Colors
  • Main LCD Driver IC: ST7701S
  • Touch Panel: Capacitive Touch (CTP)
  • Interface: RGB Interface
  • Module Size (W×H×D): 56.50 × 86.00 × 3.50 mm (Typical, includes CTP)
  • Active Area (W×H): 48.96 × 73.44 mm
  • Operating Temperature: -20°C ~ 70°C
  • Storage Temperature: -30°C ~ 80°C
  • Backlight: White LED, typical configuration
  • Power Supply: VCC (2.8V), IOVCC (1.8V), CTP_VDD (2.8V)
  • Compliance: ROHS

General Description
The LSC035I02-R-V1 is a fully integrated touch display module. Its core features include:

  1. Integrated Capacitive Touch: The 'C' in the model name indicates a built-in capacitive touch panel, providing a modern, seamless user interface without the need for external touch panel assembly.
  2. IPS Display Core: Delivers wide viewing angles for consistent image quality.
  3. Complete Solution: Combines display, touch, and backlight into a single module, simplifying supply chain and assembly.
  4. Detailed Integration Specs: The specification provides mechanical dimensions including the touch panel layer, pinout for both display and touch interface (typically I2C), and assembly notes.

Key Features

  • Turnkey Touch Solution: Integrated capacitive touch panel.
  • IPS Display Quality: Wide viewing angles.
  • Simplified Design-In: Reduces sourcing and integration complexity.
  • Clear Mechanical & Interface Definition: Specifies dimensions and touch interface pins.

Application Scenarios

  • Interactive Industrial HMIs
  • Smart Home Control Panels
  • Portable Multimedia Players with Touch
  • Kiosks and Self-Service Terminals
  • Medical Device Interfaces

Conclusion
The LESSON LSC035I02-R-V1 is a highly integrated 3.5-inch touch display module ideal for designing modern, interactive products. Its combination of IPS display and capacitive touch in one unit significantly reduces development time and complexity.

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Eddie Chen
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