Tags & Keywords
#TFT-LCD #TN #MultiInterface #2.4inch #240x320 #262KColors #QVGA #COG #Transmissive #ConsumerElectronics #IndustrialControl #PortableDevice #MCUInterface #SPI #8080 #RoHS #LESSON #SmartDisplay
Introduction
This document is the official product specification for the LS024T32-M-V1, a 2.4-inch transmissive a-Si TFT-LCD module developed by LESSON Smart Display Technology Co., Ltd. Featuring QVGA resolution (240x320), 262K colors, and a TN panel, this module is designed as a versatile and cost-effective display solution. With support for multiple interfaces (Parallel, SPI) and comprehensive specifications, it serves as a flexible choice for a wide range of applications including consumer electronics (gadgets, toys), industrial control panels, portable devices, and hobbyist projects.
Key Specifications
- Brand & Model: LESSON Smart Display LS024T32-M-V1
- Screen Size: 2.4 inches (diagonal)
- Active Area: 36.72 mm (H) × 48.96 mm (V)
- Driver IC: ST7789P3
- Display Technology: Transmissive type a-Si TFT-LCD
- Display Mode: Transmissive, TN (Twisted Nematic)
- Module Type: COG + FPC + B/L
- Display Resolution: 240(RGB) × 320 pixels (QVGA)
- Display Colors: Up to 262K Colors
- Module Outline Dimensions: 42.72 mm (H) × 60.26 mm (V) × 2.3 mm (D)
- Interface: Multi-Interface (Selectable) – Supports MCU Parallel (8080) and SPI interfaces based on pin configuration and IM[3:0] settings.
- Supply Voltages:
- VDD (Main Power): 2.4V ~ 3.3V (Typical: 2.8V)
- Absolute Maximum Ratings:
- VDD: -0.3V to +4.6V
- Operating Temperature (T_OPR): -20°C to +70°C
- Storage Temperature (T_STR): -30°C to +80°C
- Backlight: 4-chip White LED in parallel
- Environmental Compliance: RoHS Compliant
General Description
The LS024T32-M-V1 is a flexible display module built around a standard TN panel. Its 2.4-inch QVGA format is one of the most common sizes for embedded displays. The key feature is its multi-interface support, allowing designers to choose between a faster 8080 parallel interface (using pins like WR, RD, CS, RS, D0-D7) or a pin-saving SPI interface (using pins like SCL, SDA, CS, RS), configured via internal settings or pin strapping.
The specification provides a pin description table where many pins have dual functions (e.g., WR pin also acts as D/CX in SPI mode). It includes detailed timing characteristic tables for both 8080 parallel and SPI interfaces, with parameters like write cycle time, chip select setup/hold, and serial clock pulse widths (all marked TBD in the fragment, but defined in the full document). This allows developers to adapt the module to their specific hardware constraints.
Pin Description (Example of Dual Function)
| PIN NO. | Symbol | Description (Example) |
|---|---|---|
| 6 | WR | Write enable (8080) / Display data/command select (SPI D/CX) |
| 7 | RD | Read enable (8080) / If unused, fix at VDDI or DGND |
| 10 | SDA | SPI interface input/output pin (when in SPI mode) |
Application Scenarios
- Consumer Electronics: Portable gaming devices, smart gadgets, toy displays.
- Industrial Controls: Equipment status panels, control readouts, simple HMIs.
- Portable Devices: Handheld scanners, meters, data collection terminals.
- Home Appliances: Smart thermostat displays, controller interfaces.
- Hobbyist & Prototyping: Arduino, Raspberry Pi projects due to SPI option.
Conclusion
The LESSON Smart Display LS024T32-M-V1 is a practical and adaptable display solution. Its multi-interface capability makes it highly versatile, allowing it to fit into both performance-oriented (parallel) and pin-count-constrained (SPI) designs. This flexibility, combined with a common screen size, makes it a popular choice for a broad spectrum of embedded display applications.
