Tags & Keywords
#TFT-LCD #RGBInterface #SPI #3.97inch #480x800 #16.7MColors #IndustrialControl #MultiInterface #RoHS #LESSON #SmartDisplay
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. Featuring a resolution of 480(RGB)×800, 16.7 million colors, and supporting dual interfaces (Parallel RGB and 3-line SPI), this module offers exceptional flexibility. It is designed for industrial control systems, test and measurement equipment, multi-purpose embedded platforms, and devices requiring a choice of control interfaces where compatibility with different host processors or communication schemes is a key requirement.
Key Specifications
- Brand & Model: LESSON Smart Display LSC0397I07-R-V1
- Screen Size: 3.97 inches (diagonal)
- Active Area: 51.84 (H) × 86.4 (V) mm
- Driver IC: ST7701SN
- Display Technology: Transmissive type a-Si TFT-LCD
- Module Type: COG + FPC + B/L + CTP
- Display Resolution: 480(RGB) × 800 pixels
- Display Colors: Up to 16.7 Million Colors
- Interface: Parallel RGB & 3-Line Serial (SPI)
- Module Outline Dimensions: 59.4 (H) × 108.32 (V) × 3.675 (D) mm
- Absolute Maximum Ratings:
- Supply Voltage (VCC, IOVCC): -0.3V to +3.6V
- Operating Temperature (T_OPR): -20°C to +70°C
- Storage Temperature (T_STR): -30°C to +80°C
- Electrical Characteristics (Typical):
- Supply Voltage (VCC): 2.8V (2.5~3.6V)
- I/O Supply Voltage (IOVCC): 1.8V (1.65~3.3V)
- Pin Description: 40-pin connector with parallel data bus (D0-D17), RGB control signals (DCLK, HS, VS, DE), SPI pins (SPI_SDA, SPI_SCL, SPI_CS), touch pins (TP_*), and power.
- Interface Timing Specifications:
- RGB Timing: Defines setup/hold for HSYNC, VSYNC, ENABLE, and data (TPDS/TPDH), plus DOTCLK characteristics (PWDH/PWDL: 15ns, TCYCD: 33ns).
- SPI Timing: Detailed 3-line serial characteristics for Read/Write operations (TCSS, TCSH, TSCYW/R, etc.).
- Electro-Optical Characteristics (Typical @ IF=40mA):
- Luminance: 450 cd/m²
- Contrast Ratio (CR): 800:1
- Viewing Angle (CR>10): 85° (All directions)
- Response Time (Tr+Tf): 35 ms
- White Chromaticity: Wx=0.292, Wy=0.333
- Environmental Compliance: RoHS Compliant
General Description
The LSC0397I07-R-V1 stands out for its dual-interface capability, providing both a high-speed parallel RGB interface for full-frame video and a lower-pin-count 3-line SPI for command and data transfer, offering great design flexibility. The specification is highly detailed, providing complete pin definitions, exhaustive AC timing tables for both RGB and SPI modes, and a full set of electro-optical measurements. This level of detail is invaluable for engineers who need to precisely configure their host controller or FPGA to drive the display reliably under both interface modes.
Key Features
- Dual Interface (RGB & SPI): Maximum compatibility and control flexibility.
- Comprehensive Timing Specifications: Detailed AC parameters for both interfaces ensure reliable communication.
- Full Electro-Optical Data: Allows accurate performance evaluation for the application.
- Integrated Touch Support: Pins for capacitive touch panel interface.
- Versatile Control: Suitable for both high-performance video and lower-speed command-driven updates.
Application Scenarios
- Industrial Control Panels: Where different processor families may be used.
- Test & Measurement Equipment: Oscilloscopes, analyzers that may use FPGA (RGB) or MCU (SPI) control.
- Embedded Development Platforms: For prototyping with various interface options.
- Avionics & Marine Displays: Requiring robust, multi-protocol communication.
- Devices with Configurable Display Modes: e.g., high-speed data view vs. low-power status screen.
Conclusion
The LESSON Smart Display LSC0397I07-R-V1 is a highly versatile and thoroughly documented display module. Its dual-interface design and exhaustive timing specifications make it an ideal, future-proof choice for industrial control and sophisticated embedded systems where interface flexibility and reliable performance are paramount.
