2.4 inch TFT LCD Module 240x320 Pixels Display Screen P024BFT01-40

Product Overview

P024BFT01-40 is a 2.4" TFT LCD display module with a resolution of 240RGB(H)×320(V), luminance of 300 cd/m², and a contrast ratio of 250:1, connected via a 20-pin FPC. It supports 3-Wire/4-Wire SPI and MCU 8-bit/16-bit parallel interfaces, and is suited for industrial handhelds, medical diagnostic instruments, and consumer embedded devices.

The display mode is Normally Black with a Transflective viewing type, enabling use in both indoor and low-ambient outdoor environments. The driver IC is the ST7789T3, the backlight uses an LED side-light configuration, the overall outline dimensions are 42.72(H)×60.26(V)×2.30mm, and the operating temperature range is −20°C to +70°C.

Interface and Electrical Characteristics

This LCD module provides two interface categories: 3-Wire SPI, 4-Wire SPI, and MCU 8-bit/16-bit parallel. Engineers can switch between communication protocols based on available MCU resources without a hardware change. The 20-pin interface uses an RGB Vertical Stripe pixel arrangement with a color depth of 262K (18-bit).

The ST7789T3 driver IC integrates the display controller and frame buffer, allowing direct MCU frame writes with no external frame-buffer SDRAM, reducing overall system BOM cost. The backlight circuit uses an LED Side-light topology; refer to the recommended backlight driver circuit in the module datasheet for design guidance.

Dimensions and Pixel Parameters

The active display area is 36.72(H)×48.96(V)mm, pixel pitch is 51(H)×153(V)μm, and the outline dimensions are 42.72×60.26×2.30mm. At 2.30mm thick, the module fits designs with tight Z-axis constraints.

This 2.4" TFT module defaults to portrait orientation. Landscape output can be configured via software registers, adapting to different UI layouts without a component change.

Viewing Angle and Display Performance

The Transflective panel operates in reflective mode when the backlight is off — using ambient light to form an image — and switches to transmissive mode when the backlight is on. This lets a single panel handle both bright indoor display and outdoor low-power operation. The Normally Black display mode renders the screen black when unpowered or signal-free, a practical advantage for portable medical devices sensitive to standby power draw.

With 300 nit luminance, a 250:1 contrast ratio, and 262K color depth, the panel renders smooth gradients and waveform displays without banding. For applications requiring higher outdoor brightness, evaluate the high-brightness variants in the same series or consider adding a front-light module.

Operating Temperature and Reliability

Operating temperature is −20°C to +70°C; storage temperature is −30°C to +80°C, meeting industrial-grade wide-temperature requirements. These ratings cover industrial control panels, vehicle-mounted auxiliary instruments, and outdoor data acquisition terminals that undergo thermal cycling.

Modules are burn-in tested and optically inspected at the factory; luminance uniformity and dead-pixel acceptance criteria follow the datasheet appendix. Before placing a production order, obtain the complete datasheet, confirm the AQL standard, and verify that the packaging format (tray vs. bulk) aligns with your incoming inspection process.

Typical Applications

SPI interface LCD modules are widely used in MCU-constrained designs: portable medical devices such as glucometers and pulse oximeters favor SPI to conserve GPIO; industrial handheld PDAs and barcode scanners select wide-temperature industrial grades for thermal range; IoT gateways and smart-home control panels prioritize MCU 8-bit/16-bit interfaces for direct compatibility with mainstream SoCs.

The Transflective characteristic of the P024BFT01-40 also suits utility meters — electric and water meters — where the backlight activates for close-range reading by field technicians, while ambient-light reflection keeps digits legible when the device is unpowered, reducing backup battery consumption.

Selection Comparison

In the 2.4" TFT LCD module market, the primary differentiating parameters are interface type (SPI vs. MIPI DSI vs. RGB parallel), backlight type (bottom-lit vs. side-lit), viewing-angle technology (TN / IPS / Transflective), and driver IC. The P024BFT01-40 covers mid-to-low refresh-rate applications with its dual SPI+MCU interface, and the side-light backlight keeps module thickness at or below 2.30mm.

Projects requiring higher frame rates (≥60fps video) or a wider color gamut should evaluate RGB parallel interface variants. IPS wide-viewing-angle requirements call for IPS panel series. Include the driver IC model (ST7789T3) in your selection checklist to enable reuse of existing display driver code.

Integration Notes

In SPI mode, the maximum SPI clock frequency supported by the ST7789T3 must be verified against the AC Timing section of the IC datasheet; the host must complete the initialization sequence before sending frame data. In MCU parallel mode, 8-bit mode requires 8 data lines plus control lines (CS/RS/WR/RD/RST) — approximately 13 GPIO pins total; 16-bit mode increases write throughput and is preferred for waveform or video scenes that require fast screen refresh.

The FPC connector is 20-pin, 0.5mm pitch. Confirm that the mating connector on the host PCB matches this specification. Backlight driving requires an external boost circuit; refer to the Backlight section of the datasheet for input voltage and current requirements to avoid insufficient drive current causing below-spec brightness.

Procurement and Inventory Guidance

As an industrial-grade component, this LCD display module should go through the following steps before volume production: ① obtain the complete datasheet and confirm the revision number; ② request samples for electrical continuity testing and driver software bring-up; ③ confirm MOQ, lead time, and packaging format (tray vs. bulk) with the supplier; ④ confirm long-term supply continuity or identify a drop-in alternative to prevent supply disruption caused by end-of-life.

For current stock status and volume pricing on the P024BFT01-40, contact the sales team for the latest quotation. Volume orders (≥500 pcs/month) are typically eligible for tiered pricing under a blanket purchase order.

Frequently Asked Questions

• What interfaces does the P024BFT01-40 support? Is it compatible with Arduino or STM32?

  The module supports 3-Wire SPI, 4-Wire SPI, and MCU 8-bit/16-bit parallel interfaces via the ST7789T3 driver IC. Both Arduino (hardware SPI) and STM32 (HAL SPI or FSMC parallel) can drive it directly; open-source ST7789 driver libraries exist for both platforms. In SPI mode, verify that the host SPI clock does not exceed the maximum specified in the IC datasheet. In MCU parallel mode, confirm that sufficient GPIO is available — 8-bit mode requires approximately 13 pins.
• How does a Transflective panel differ from a standard TN or IPS module? Can it be used outdoors?

  A Transflective panel operates in transmissive mode (like TN/IPS) when the backlight is on, and switches to reflective mode when the backlight is off, forming an image from ambient light. In direct sunlight, screen content remains readable even with the backlight off — an advantage for battery-powered instruments. Standard transmissive TN/IPS panels wash out in direct sunlight and require higher backlight current to compensate. At 300 nit, this module suits low-ambient outdoor or indoor environments; direct-sun outdoor applications should evaluate modules rated at 800 nit or above.
• What are the FPC connector specs? What should PCB designers watch for?

  The module uses a 20-pin, 0.5mm pitch FPC connector. The host PCB requires a matching 20-pin 0.5mm pitch FPC receptacle (top-contact or bottom-contact — confirm the insertion direction matches the module FPC). Refer to the Mechanical Drawing in the datasheet for FPC length and bend orientation. Allow at least 3mm of FPC bending clearance in the PCB layout to prevent gold-finger cracking from over-bending. The backlight pins (LEDK/LEDA) require an external boost driver circuit and must not be driven directly from GPIO.
• Does the −20°C to +70°C operating range meet automotive or industrial-grade standards?

  The module's operating temperature of −20°C to +70°C and storage temperature of −30°C to +80°C satisfy the basic requirements of IEC 60068-2 industrial-grade thermal class (Class 3K3), covering industrial handhelds, instrumentation, and indoor control panels. Automotive grades (AEC-Q100 Grade 2 and above) typically require operating temperatures to −40°C to +105°C; this module is not rated for underhood or extreme-heat automotive environments. Contact the sales team to confirm availability of automotive-qualified variants if required.
• What is the minimum order quantity (MOQ)? How do I request samples?