Tags & Keywords
#TFT-LCD #IPS #8080 #1.14inch #135x240 #262KColors #COG #Transmissive #WearableDisplay #IoTDisplay #SmartWatch #FitnessTracker #MCUInterface #WideViewingAngle #RoHS #LESSON #SmartDisplay
Introduction
This document is the official product specification for the LS0114I01-M-V1, an ultra-compact 1.14-inch transmissive a-Si TFT-LCD module developed by LESSON Smart Display Technology Co., Ltd. Featuring a resolution of 135(RGB)x240, 262K colors, and an IPS panel for wide viewing angles, this module is specifically designed for space-constrained applications. With its 8080-series MCU parallel interface and detailed specifications, it serves as an ideal solution for wearable technology (smartwatches, fitness trackers), IoT device interfaces, portable medical sensors, and other miniaturized consumer electronics.
Key Specifications
- Brand & Model: LESSON Smart Display LS0114I01-M-V1
- Screen Size: 1.14 inches (diagonal)
- Active Area: 14.86 mm (H) × 24.91 mm (V)
- Driver IC: ST7789V (as indicated in the Physical Features section)
- Display Technology: Transmissive type a-Si TFT-LCD
- Display Mode: Transmissive, IPS (In-Plane Switching)
- Module Type: COG + FPC + B/L
- Display Resolution: 135(RGB) × 240 pixels
- Display Colors: Up to 262K Colors
- Module Outline Dimensions: 17.6 mm (H) × 31.0 mm (V) × 1.61 mm (D)
- Interface: 8080-series MCU Parallel Interface (8-bit data bus: DB0-DB7)
- Input Data: 8bit 8080
- Viewing Direction: Free (IPS)
- Supply Voltages:
- VDD (Main Power): 2.4V ~ 3.3V (Typical: 2.8V)
- IOVCC (I/O Power): 1.65V ~ 3.3V (Typical: 1.8V)
- Absolute Maximum Ratings:
- VDD / IOVCC: -0.3V to +4.6V / +4.0V
- Operating Temperature (T_OPR): -20°C to +70°C
- Storage Temperature (T_STR): -30°C to +80°C
- Backlight: 1-chip White LED (Drive: I_F=20mA, V_F=3.0V Typ.)
- Optical Characteristics (Typical):
- Luminance: 400 cd/m²
- Contrast Ratio: 500:1
- Response Time (Tr+Tf): 35 ms
- Viewing Angle (CR>10): 80° (All sides)
- Environmental Compliance: RoHS Compliant
General Description
The LS0114I01-M-V1 is a miniaturized display module built around a wide-viewing-angle IPS panel, making it suitable for devices viewed from various angles. Its extremely small form factor is a key feature. The module is controlled by the ST7789V driver IC via an 8-bit 8080 parallel interface, providing a balance of data transfer speed and control simplicity for microcontrollers.
The specification includes a detailed pin description for its 18-pin FPC connector, covering data bus, control signals (CS, DC, WR, RD, RESET), power, and backlight pins. It provides 8080 parallel interface timing characteristics and a dedicated reset timing section. The document also contains extensive Inspection Standards (AQL), defining criteria for visual defects (dots, scratches), electrical defects (no display, missing lines), and assembly defects (FPC, tape), ensuring product reliability for mass production.
Pin Description (Key Pins)
| PIN NO. | Symbol | I/O | Description |
|---|---|---|---|
| 1 | LEDA | P | Power for LED backlight anode |
| 2 | LEDK | P | Power for LED backlight cathode |
| 3 | GND | P | Ground |
| 4 | VDD2.8V | P | Main power supply (2.8V) |
| 5 | IOVCC1.8V | P | I/O power supply (1.8V) |
| 6 | RESET | I | Reset signal |
| 7 | CS | I | Chip selection pin |
| 8 | DC | I | Data/Command selection pin |
| 9 | WR | I | Write enable |
| 10 | RD | I | Read enable |
| 11-18 | DB0-DB7 | I | 8-bit data bus |
Application Scenarios
- Wearable Electronics: Smartwatch main/secondary screen, fitness band display.
- IoT & Smart Home: Compact status displays for sensors, controllers, smart switches.
- Portable Medical Devices: Glucose meter, pulse oximeter, compact monitor screen.
- Consumer Electronics: Ultra-compact gadgets, toy displays, accessory screens.
- Industrial Handheld Tools: Miniature readout displays for meters and scanners.
Conclusion
The LESSON Smart Display LS0114I01-M-V1 is an ultra-compact, well-documented display solution. Its combination of IPS quality, parallel interface, and rigorous inspection standards makes it a reliable and suitable choice for integrating a crisp graphical interface into the next generation of miniaturized wearable and IoT products.
