Tags & Keywords
#TFT-LCD #3.97inch #480x800 #WVGA #16.7MColors #ST7701SN #RGBInterface #SPIInterface #LESSON #RoHS #MultiInterface
Introduction
This document is the official product specification for the LSC0397I07-R-V1, a 3.97-inch transmissive a-Si TFT-LCD module developed by LESSON Smart Display Technology Co., Ltd. This module supports both RGB parallel interface and SPI serial interface, features a WVGA resolution of 480(RGB)×800, and can display 16.7 million colors. It is a highly flexible, interface-rich module suitable for applications that need to choose different interfaces based on the host controller's capability or system architecture, such as development boards, general-purpose industrial control equipment, and multi-function instruments.
Key Specifications
- Brand & Model: LESSON LSC0397I07-R-V1
- Screen Size: 3.97 inches (diagonal)
- Display Technology: Transmissive a-Si TFT-LCD
- 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: RGB Parallel Interface and 3-wire/4-wire SPI Serial Interface (achieved via pin multiplexing)
- Module Size (H×V×D): 59.4 × 108.32 × 3.675 mm
- Active Area (H×V): 51.84 × 86.4 mm
- Operating Temperature: -20°C ~ 70°C
- Storage Temperature: -30°C ~ 80°C
- Power Supply: VCC (2.8V), IOVCC (1.8V)
- Compliance: ROHS
General Description
The LSC0397I07-R-V1 is a dual-interface display module, with its greatest feature being flexibility. The specification is extremely detailed:
- Complete Pin Description: 40-pin FPC, with pins defining functions for both the RGB interface (D0-D17, DCLK, HS, VS, DE) and the SPI interface (SDA, SCL, CS), with the operating mode selected via configuration.
- Exhaustive Timing Characteristics: Provides separate SPI interface timing tables (setup, hold, pulse width times for read/write cycles) and RGB interface timing diagrams and parameter tables (sync signals, enable signal, dot clock, data setup/hold times).
- Comprehensive Electro-Optical Characteristics: Includes typical values and test conditions for parameters such as response time, contrast ratio, transmittance, color chromaticity, viewing angle, and luminance.
- Stringent Inspection Standards: The document dedicates significant space to defining acceptance/rejection criteria for visual defects (glass, polarizer, FPC) and electrical defects (display abnormalities, Mura, overcurrent, etc.), reflecting strict control over product quality.
Key Features
- Dual Interface Support (RGB & SPI): Provides great design flexibility.
- Extremely Detailed Technical Documentation: Timing, electro-optical parameters, and inspection standards are very comprehensive.
- Clear Quality Control: Defect judgment criteria are specific, beneficial for quality consistency.
- Clear Structural Dimensions: Provides three-view drawings and detailed dimension annotations.
Application Scenarios
- Development Boards & Evaluation Kits: Allows users to choose a familiar interface for development.
- General-Purpose Industrial Control Equipment: Can choose the connection method based on the interface resources of the host PLC or MCU.
- Multi-Function Test Instruments: Can use SPI for configuration and RGB for high-speed display.
- Prototyping and Flexible Product Design.
Conclusion
The LESSON LSC0397I07-R-V1 is a highly versatile and meticulously documented 3.97-inch display module. Its dual-interface capability and exhaustive specification make it an outstanding choice for projects requiring maximum interface flexibility and rigorous technical documentation.
