Tags & Keywords
#TFT-LCD #QSPIInterface #1.8inch #360x360 #SquareDisplay #262kColors #HighResolution #MiniatureDisplay #RoHS #LESSON #SmartDisplay
Introduction
This document is the official product specification for the LSL018I01-QS-V1, a 1.8-inch transmissive a-Si TFT-LCD module developed by LESSON Smart Display Technology Co., Ltd. Featuring a high-resolution square format of 360(RGB)×360, 262k colors, and a Quad-SPI (QSPI) interface, this module pushes the limits of pixel density in a miniature display. It is designed for advanced miniature devices such as high-end smartwatches, augmented reality (AR) viewfinders, compact digital viewfinders, and premium portable instrumentation where a sharp, square image and fast data transfer are essential.
Key Specifications
- Brand & Model: LESSON Smart Display LSL018I01-QS-V1
- Screen Size: 1.8 inches (diagonal)
- Active Area: 45.684 (H) × 45.684 (V) mm
- Driver IC: ST77916
- Display Technology: Transmissive type a-Si TFT-LCD
- Display Mode: Active matrix TFT, Transmissive type, IPS
- Module Type: COG + FPC + B/L
- Display Resolution: 360(RGB) × 360 pixels
- Display Colors: Up to 262k Colors
- Interface: Quad-SPI (QSPI) (Pins: QSPI_IO0-IO3, QSPI_SCK, CS)
- Module Outline Dimensions: 69.0 (H) × 69.0 (V) × 3.11 (D) mm
- Absolute Maximum Ratings:
- Supply Voltage (VCC): -0.3V to +4.6V
- Supply Voltage (IOVCC): -0.3V to +4.0V
- 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 (2.65~3.3V)
- I/O Supply Voltage (IOVCC): 1.8V (1.65~3.3V)
- SPI/QSPI Timing Characteristics: Detailed parameters for serial interface (e.g., Serial clock cycle T_SCYCW: min 16 ns).
- Electro-Optical Characteristics (Typical):
- Response Time (Tr+Tf): 25 ms (Max: 35 ms)
- Contrast Ratio (CR): 1200:1
- Viewing Angle (CR>10): 85° (All directions)
- White Chromaticity (CIE1931): Wx=0.297, Wy=0.337
- Environmental Compliance: RoHS Compliant
General Description
The LSL018I01-QS-V1 is a high-performance miniature square display. Its 360x360 resolution on a 1.8-inch diagonal results in a high pixel-per-inch (PPI) count, yielding very sharp images. The QSPI interface, driven by the ST77916 IC, allows for faster data transfer compared to standard SPI, which is beneficial for updating this higher-resolution display. The specification provides robust absolute maximum ratings suitable for a range of environments, clear DC characteristics, and serial interface timing. The electro-optical specs confirm its quality for demanding visual applications.
Key Features
- High-Resolution Square Display (1.8" 360x360): Exceptional sharpness in a tiny format.
- Fast QSPI Interface: Enables quicker screen updates than standard SPI.
- ST77916 Driver: Capable driver for this resolution and interface.
- Wide Operating Voltage Range: VCC up to 4.6V max offers some design flexibility.
- Compact Square Form Factor: Perfect for symmetrical device designs.
Application Scenarios
- High-End Smartwatches: For detailed watch faces and graphics.
- AR/VR Viewfinders: As a compact display element in headsets.
- Digital Camera Viewfinders: In compact or action cameras.
- Premium Portable Instrumentation: High-end multimeters, laser range finders.
- Specialized Industrial Scopes: For inspection or measurement tools.
Conclusion
The LESSON Smart Display LSL018I01-QS-V1 represents a high-end option in the miniature display category. Its combination of high resolution, fast interface, and square format makes it an excellent choice for designers of cutting-edge miniature and wearable devices where display quality is a key differentiator.
