Tags & Keywords
#TFT-LCD #IPS #MIPI #3.97inch #480x800 #WVGA #16.7MColors #TouchScreen #I2C #EmbeddedDisplay #PortableDevice #RoHS #LESSON #SmartDisplay
Introduction
This document is the official product specification for the LSC397I04-MP-V2, a 3.97-inch transmissive a-Si TFT-LCD module developed by LESSON Smart Display Technology Co., Ltd. Featuring a resolution of 480(RGB)×800 (WVGA), 16.7 million colors, an IPS panel for wide viewing angles, and an integrated capacitive touch panel (CTP), this module is a complete display+input solution. With its MIPI DSI interface for display and I2C interface for touch, it serves as a versatile choice for interactive portable devices, industrial HMIs, smart home controllers, and various embedded systems requiring a responsive touch interface.
Key Specifications
- Brand & Model: LESSON Smart Display LSC397I04-MP-V2
- Screen Size: 3.97 inches (diagonal)
- Active Area: 51.84 mm (H) × 86.4 mm (V)
- Driver IC: ST7701S (LCD), Touch IC integrated.
- Display Technology: Transmissive type a-Si TFT-LCD
- Display Mode: IPS (In-Plane Switching)
- Module Type: COG + FPC + B/L + CTP (with Capacitive Touch Panel)
- Display Resolution: 480(RGB) × 800 pixels
- Display Colors: Up to 16.7 Million Colors
- Module Outline Dimensions: 59.4 mm (H) × 108.319 mm (V) × 3.675 mm (D)
- Interface:
- Display: MIPI DSI, 2 data lanes
- Touch: I2C (CTP_SCL, CTP_SDA, CTP_INT, CTP_RST)
- Viewing Direction: All (IPS)
- Supply Voltages:
- VCC (Main Power): 2.5V ~ 3.6V (Typical: 2.8V)
- IOVCC (I/O Power): 1.65V ~ 3.3V (Typical: 1.8V)
- CTP_VCC (Touch Power): 2.8V
- Absolute Maximum Ratings: Provided for supply voltages.
- DC Electrical Characteristics: Defines VIL, VIH levels for inputs.
- Pin Description: 30-pin connector with MIPI lanes (D0, D1, CLK), LCD power/control (RST, VEN), touch I2C pins, and backlight power (LEDA, LEDK).
- Interface Timing: Detailed MIPI DSI High-Speed Mode timing (UI, tDS, tDH).
- Optical Characteristics (Typical):
- Module Luminance: 400 cd/m² (450 cd/m² Min)
- Environmental Ratings:
- Operating Temperature: -20°C to +70°C
- Storage Temperature: -30°C to +80°C
- Backlight: 5S2P LED configuration (5 series, 2 parallel).
- Quality Standards: Includes defect criteria for cracks, glass extrusion, pin damage, and tape application.
- Environmental Compliance: RoHS Compliant, Halogen-Free.
General Description
The LSC397I04-MP-V2 is a feature-rich display module combining a quality IPS display with a capacitive touch panel. The ST7701S drives the LCD. The specification clearly separates the MIPI display interface and the I2C touch interface, providing pinouts and basic electrical specs for both. It includes detailed MIPI timing parameters and practical quality inspection criteria for manufacturing. The backlight configuration is explicitly stated, aiding power supply design.
Key Features
- Integrated Touch: Capacitive touch panel with I2C interface.
- IPS Display: Wide viewing angles.
- Dual Interface: MIPI for video, I2C for touch data.
- Detailed Quality Specs: Helpful for production and incoming inspection.
- Explicit Backlight Design: 5S2P LED array.
Application Scenarios
- Interactive Portable Devices: Handheld terminals, payment devices.
- Industrial HMIs: Touch-operated control panels.
- Smart Home Controllers: Thermostats, security panels.
- Point-of-Sale (POS) Systems: Customer-facing displays.
- Medical Monitoring Devices: With touch input.
Conclusion
The LESSON Smart Display LSC397I04-MP-V2 is a well-integrated touch display module. Its clear specification of both display and touch subsystems, along with manufacturing quality guidelines, makes it a reliable and ready-to-use component for developing interactive embedded products with a modern user interface.
