Description
2.4 Inch Industrial Ultra Wide Temperature IPS TFT Display Module
HOTHMI has engineered the TFT-H024A16QVIST6N10, a premium-grade 2.4 inch Ultra Wide Temperature TFT display module designed specifically for mission-critical and rugged deployment.
Technical Specifications Overview
Before diving deep into the architecture, here is a breakdown of the core physical and electrical baselines for this Ultra Wide Temperature TFT display:
This display is a 2.4-inch TFT color screen with a resolution of 240×RGB×320 pixels. The display area measures 36.72mm × 48.96mm, and the overall dimensions are 42.72mm × 60.26mm × 2.20mm. It features an IPS full-viewing angle, supports a 4-wire serial interface, and uses an ST7789V driver chip with a driving voltage VCI of 3.0~3.3V. The backlight uses constant current drive with a voltage of 12.0~13.4V and a current of 60mA. This model does not include a touchscreen.The TFT operating temperature range is -20~+70℃, and the storage temperature is -30~+80℃.
Understand how the three core hardware modules on the motherboard are connected to the TFT module via hardware pins.
- Power Subsystem: Accepts clean DC input (VCI) between 3.0V and 3.3V to power the internal logic, state machines, and charge pumps of the Sitronix ST7789V driver IC.
- High-Speed Serial Communication Interface: Features an optimized 4-line serial peripheral interface (SPI). It handles incoming commands and pixel writes using a Dedicated Data/Command (D/CX) signal line to boost host parsing speed.
- Backlight Driving Matrix: The module incorporates an industrial-grade solid-state LED assembly. The Backlight-2 configuration utilizes a high-efficiency array running under constant current (If = 60mA) at an active voltage range of 12.0V to 13.4V, enabling intense light output.
- TFT LCD Core Panel: A high-contrast, transmissive, raw TFT glass matrix featuring a native 240×320 RGB layout, controlled with precise source and gate logic.
Interface Pin Definition & Wiring Guide
The module features an ultra-reliable, 10-pin flexible printed circuit (FPC) tail layout with a standardized 0.5mm pitch and structural PI stiffeners to resist mechanical pulling or vibration fatigue during rough field operation.
Pin Assignment Table：
Key Product Highlights & Engineering Selling Points
- Hardened Ultra Wide Temperature TFT Substrate
Unlike standard commercial displays that degrade or stop refreshing when the weather drops below freezing, this Ultra Wide Temperature TFT module operates reliably down to -20°C and tolerates non-operating storage all the way down to -30°C to +80°C. This stops liquid crystal freezing and layout latch-up, ensuring critical diagnostics stay readable around the clock.
- High Contrast Ratio & Extreme Viewing Angles
Utilizing a modern Normally Black liquid crystal panel structure, the Ultra Wide Temperature TFT module yields an impressive 1500:1 Contrast Ratio (CR). Dark areas remain rich and black rather than turning cloudy grey. Coupled with a Full View directional angle of U80/D80/R80/L80, operators can read numerical details accurately from sharp side angles without color shifting or image inversion.
- Low Pin Count 4-Line SPI Interface
A streamlined, high-speed 4-line SPI architecture replaces resource-intensive 16-bit or 8-bit parallel buses on this Ultra Wide Temperature TFT display. This saves vital micro-controller pins, shrinks PCB traces, minimizes EMI problems, and allows integration even with tiny, low-cost micro-controllers.
Target Applications & Industry Implementations
- Industrial Automation Interfaces
Machinery controllers, digital flowmeters, remote sensors, and industrial smart HMI nodes operating inside factories prone to extreme heat or sub-zero basements, perfectly matching the Ultra Wide Temperature TFT’s rugged performance.
- Automotive Sub-Displays & E-Bikes
Lightweight digital cluster readouts, smart handlebar dash computers for electric vehicles, and ambient climate indicators exposed to direct sun and weathering, supported by the Ultra Wide Temperature TFT’s wide temperature tolerance.
- Outdoor IoT & Cold Chain Logistics
Marine navigation instruments, smart farming telemetry systems, handheld field scanners, and freezer warehouse scanners tracking inventory at sub-zero temperatures, where the Ultra Wide Temperature TFT excels in stable operation.
- Medical Diagnostic Terminals
Critical patient equipment requiring wide viewing angles and deep contrast ratios to prevent misread data, with the Ultra Wide Temperature TFT delivering reliable visual performance.
Technical FAQ: Self-Correcting Engineering
Q: What are the distinct differences between Backlight-1 and Backlight-2 configurations for this Ultra Wide Temperature TFT module?
Answer: The module is engineered with two distinct factory backlight circuit options to fit different power budgets and lighting requirements:
Backlight-1 Option: Optimized for enclosed industrial spaces where power budget is tight. It operates at a typical forward voltage of 3.2V with a current load of 80mA, outputting a balanced surface luminance of 600 cd/m².
Backlight-2 Option: Built for extreme outdoor visibility and true sunlight-readability. It runs at a higher forward voltage range of 12.0V to 13.4V with an optimized 60mA current limit, outputting an intense 1500 cd/m² of brightness.
Engineering Checklist: Always check your schematic’s voltage capability and make sure to drive the backlight using a dedicated constant-current regulator rather than a fixed-voltage supply rail to prevent thermal runaway.
