Tags & Keywords
#TFT-LCD #RGBInterface #3.95inch #480x480 #SquareDisplay #16.7MColors #IPS #WearableDevice #CompactHMI #RoHS #LESSON #SmartDisplay
Introduction
This document is the official product specification for the LSC040I01-R-V1, a 3.95-inch transmissive a-Si TFT-LCD module developed by LESSON Smart Display Technology Co., Ltd. Featuring a unique square resolution of 480(RGB)×480, 16.7 million colors, an IPS panel, and a parallel RGB interface, this module is designed for applications requiring a compact, square display format. It is ideally suited for wearable devices (smartwatches, fitness trackers), compact industrial human-machine interfaces (HMIs), portable instrumentation, and specialized consumer electronics where a symmetrical, high-quality display is essential.
Key Specifications
- Brand & Model: LESSON Smart Display LSC040I01-R-V1
- Screen Size: 3.95 inches (diagonal)
- Active Area: 71.86 (H) × 70.18 (V) mm
- Driver IC: ST7701SN
- Display Technology: Transmissive type a-Si TFT-LCD
- Display Mode: Normally Black, IPS
- Module Type: COG + FPC + B/L + CTP
- Display Resolution: 480(RGB) × 480 pixels
- Display Colors: Up to 16.7 Million Colors
- Interface: Parallel RGB (inferred from pin description: DB0-DB17, DCLK, HS, VS, DE)
- Module Outline Dimensions: 84.0 (H) × 84.0 (V) × 3.03 (D) mm
- Operating Temperature: -20°C to +70°C
- Storage Temperature: -30°C to +80°C
- Backlight: 10 white LEDs (5 series, 2 parallel), IF=40mA (20mA/LED), VF=15~16V
- Optical Characteristics (Typical):
- Response Time (Tr+Tf): 30 ms
- Contrast Ratio (CR): 1200:1
- Viewing Angle (CR>10): 85° (All directions: T, B, L, R)
- White Chromaticity (CIE1931): Wx=0.302, Wy=0.337
- Environmental Compliance: RoHS Compliant
General Description
The LSC040I01-R-V1 is a distinctive square-format display module powered by the ST7701SN driver IC. Its 1:1 aspect ratio makes it perfect for applications where information is presented symmetrically or where a circular bezel is used. The module combines an IPS panel for excellent viewing angles with a traditional 18-bit parallel RGB interface (using DB0-DB17), ensuring compatibility with many microcontrollers. The specification provides complete mechanical drawings, detailed electrical characteristics (VCC, IOVCC levels), a full pinout, RGB timing parameters, and comprehensive electro-optical data. It also includes critical design notes for mechanical integration, such as bezel clearance requirements for the touch panel.
Key Features
- Square IPS Display: Unique 1:1 aspect ratio with wide viewing angles.
- ST7701SN Driver: Common driver for reliable performance.
- Parallel RGB Interface: Easy to interface with embedded controllers.
- Detailed Mechanical & Optical Specs: Enables precise integration and visual quality assessment.
- Integrated Touch Ready: Module type includes CTP (Capacitive Touch Panel).
Application Scenarios
- Wearable Devices: High-end smartwatches, fitness tracker main displays.
- Compact Industrial HMIs: Handheld controller interfaces, portable device status screens.
- Portable Instrumentation: Multimeters, environmental monitors.
- Consumer Electronics: Smart home controllers, retro gaming devices.
- Specialized Medical Devices: Portable diagnostic equipment displays.
Conclusion
The LESSON Smart Display LSC040I01-R-V1 fills a niche for high-quality square displays. Its comprehensive specification and standard interfaces make it a compelling choice for designers of wearable tech and compact embedded systems seeking a premium, symmetrical visual interface.
