Introduction
This document details the LS0397I10-R-V1, a 3.97-inch transmissive a-Si TFT-LCD module from LESSON Smart Display. Featuring a WVGA resolution of 480(RGB)x800 pixels and the capability to display 16.7 million colors, this module is designed for applications requiring high-precision color graphics and detailed imagery. With comprehensive specifications covering mechanical dimensions, absolute maximum ratings, detailed electrical characteristics, and pin functions, it serves as a reliable display solution for advanced portable devices, industrial instruments, and consumer electronics where color fidelity and clarity are paramount.
Key Specifications
- Brand & Model: LESSON Smart Display LS0397I10-R-V1
- Screen Size: 3.97 inches (diagonal)
- Active Area: 51.84 mm (H) × 86.4 mm (V)
- Driver IC: Not explicitly stated in the provided specification. The module features a comprehensive RGB parallel interface and an SPI interface for control.
- Display Technology: Transmissive type a-Si TFT-LCD (Amorphous Silicon Thin Film Transistor Liquid Crystal Display)
- Module Type: COG + FPC + B/L (Chip-On-Glass, Flexible Printed Circuit, Backlight)
- Display Resolution: 480(RGB) × 800 pixels (WVGA)
- Display Colors: Up to 16.7 Million Colors
- Module Outline Dimensions: 55.55 mm (H) × 96.17 mm (V) × 2.12 mm (D)
- Interface: Primary: 24-bit RGB Parallel Interface (R0-R7, G0-G7, B0-B7, CLK, HS, VS, DE). Secondary: SPI Control Interface (CS, SCL, SDA). Also includes a dedicated reset pin (RST).
- Supply Voltage (VCC): 2.5V to 3.6V (Typical: 2.8V)
- I/O Voltage (IOVCC): 1.65V to 3.3V (Typical: 1.8V)
- Operating Temperature: -20°C to +70°C
- Storage Temperature: -30°C to +80°C
- Backlight: LED backlight with dedicated anode (LEDA) and cathode (LEDK) pins.
General Description
The LS0397I10-R-V1 is a high-performance color display module. Its 3.97-inch screen with 480x800 resolution offers a tall aspect ratio, well-suited for displaying modern user interfaces, lists, and documents. The module's core capability is its full 24-bit RGB data interface (8 bits per color), enabling true 16.7M color depth for smooth gradients and accurate color reproduction. This makes it ideal for applications like advanced handheld instruments or portable multimedia devices.
The module provides two distinct communication paths: the high-speed RGB interface for pixel data streaming and a separate SPI (Serial Peripheral Interface) for sending commands and configuration data to the internal controller. This dual-interface design offers flexibility for system integration. The specification includes detailed reset timing requirements, which are critical for reliable initialization. It specifies a reset pulse (RESX) duration of at least 10µs and defines important wait times after reset release (5ms before sending commands, 120ms before sending Sleep Out command in Sleep Out mode). The document also provides clear defect criteria for quality assurance, categorizing major defects (like cracks, no display, missing lines) as rejectable and defining acceptance limits for minor defects.
Application Scenarios
This high-color-depth WVGA module targets applications needing detailed and vibrant displays:
- Advanced Portable Medical Devices: For handheld ultrasound, vital signs monitors, or digital microscopes.
- Professional Industrial Handhelds: Data collectors, test equipment, and diagnostic tools.
- High-End Consumer Portable Devices: Premium portable media players, gaming handhelds, or smart controllers.
- IoT and Smart Home Hubs: As a rich graphical interface for central control units.
- Automotive and Marine Displays: For aftermarket navigation or system monitoring screens.
Conclusion
The LESSON Smart Display LS0397I10-R-V1 is a sophisticated display solution that emphasizes color quality and reliable operation. Its high resolution, true 24-bit color interface, detailed electrical and timing specifications, and clear quality criteria make it an excellent choice for engineers developing products where display performance and integration robustness are critical. It provides a solid foundation for creating devices with compelling visual interfaces.
