Tags & Keywords
#TFT-LCD #IPS #8080 #1.46inch #360x360 #262KColors #SquareDisplay #HighPPI #EmbeddedDisplay #WearableTech #IndustrialHMI #MCUInterface #WideViewingAngle #RoHS #LESSON #SmartDisplay
Introduction
This document is the official product specification for the LS0146I02-M-V1, a high-pixel-density 1.46-inch square transmissive a-Si TFT-LCD module developed by LESSON Smart Display Technology Co., Ltd. Featuring a sharp 360x360 pixel resolution, 262K colors, and an IPS panel, this module is designed for applications requiring detailed imagery in a very compact space. With its 8080 parallel interface and comprehensive specifications, it serves as an ideal solution for advanced wearable devices, portable medical instruments, and high-end consumer electronics where display clarity is paramount.
Key Specifications
- Brand & Model: LESSON Smart Display LS0146I02-M-V1
- Screen Size: 1.46 inches (diagonal)
- Active Area: 36.936 mm (H) × 36.936 mm (V) (Square)
- Driver IC: ST77916 (as indicated in the General Description)
- Display Technology: Transmissive type a-Si TFT-LCD
- Display Mode: Active matrix TFT, Transmissive, IPS (In-Plane Switching)
- Module Type: COG + FPC + B/L
- Display Resolution: 360(RGB) × 360 pixels (Square)
- Display Colors: 262 Thousand Colors (262K)
- Module Outline Dimensions: 40.464 mm (H) × 41.96 mm (V) × 1.66 mm (D)
- Interface: 8080-series MCU Parallel Interface (8-bit data bus: D0-D7)
- Input Data: 8bit 8080
- Viewing Direction: Free (IPS)
- Supply Voltages:
- VCC (Main Power): 2.65V ~ 3.3V (Typical: 2.8V)
- IOVCC (I/O Power): 1.65V ~ 3.3V (Typical: 1.8V)
- Absolute Maximum Ratings:
- VCC / IOVCC: -0.3V to +4.6V
- Operating Temperature (T_OPR): -20°C to +70°C
- Storage Temperature (T_STR): -30°C to +80°C
- DC Electrical Characteristics: Defines VIL, VIH levels relative to IOVCC.
- Backlight: Integrated LED backlight (Pins: LEDA, LEDK)
- Optical Characteristics (Typical):
- Contrast Ratio: 1200:1
- Response Time (Tr+Tf): 30 ms
- Transmittance: 2.94%
- White Point (CIE1931): Wx~0.294, Wy~0.323
- Viewing Angle (CR>10): 85° (All sides)
- Environmental Compliance: RoHS Compliant
General Description
The LS0146I02-M-V1 is a premium compact display module featuring exceptional pixel density for its size, resulting in very sharp images. Its 1.46-inch square IPS panel ensures consistent color and wide viewing angles. The module is controlled by the ST77916 driver IC via an 8-bit 8080 parallel interface, enabling efficient data transfer for graphics updates.
The specification provides detailed DC electrical characteristics and exhaustive 8080 parallel interface timing characteristics. The timing tables are particularly comprehensive, specifying parameters for write cycles and read cycles (both for ID and Frame Memory), with defined minimum values for setup, hold, and pulse widths (e.g., T_WC=30ns, T_RC(ID)=160ns, T_RC(FM)=450ns). A dedicated section details reset timing requirements, including pulse duration (T_RW min 10us) and the complex reset cancellation timing which depends on the module's sleep state, with important notes on how the system handles pulses of ambiguous length.
Pin Description (Key Pins)
| PIN NO. | Symbol | I/O | Description |
|---|---|---|---|
| 1 | LEDK | P | Power for LED backlight cathode |
| 2 | LEDA | P | Power for LED backlight anode |
| 4 | VDDIO | P | I/O power supply (IOVCC) |
| 5 | VDD | P | Main power supply (VCC) |
| 7 | RST | I | Reset pin. |
| 8-15 | D7-D0 | I | 8-bit data bus |
| 16 | CS | I | Chip select pin |
| 17 | RD | I | Read enable in MCU parallel interface |
| 18 | WR | I | Write enable in MCU parallel interface |
| 19 | RS | I | Display data/command selection pin (DCX) |
Application Scenarios
- Advanced Wearable Devices: High-resolution smartwatches, fitness trackers, AR glasses.
- Portable Medical Devices: Handheld dermatoscopes, otoscopes, diagnostic viewers.
- Industrial Inspection Tools: Portable microscopes, precision alignment tools.
- Consumer Electronics: Premium compact displays for gadgets, high-end accessories.
- Hobbyist & Prototyping: For projects demanding a very sharp small display.
Conclusion
The LESSON Smart Display LS0146I02-M-V1 is a high-end display solution that combines high resolution, IPS quality, and a detailed parallel interface specification. Its precise timing parameters and reset behavior documentation make it a reliable choice for developers creating sophisticated portable and wearable devices where display sharpness and reliable control are critical.
