Engineered for Demanding Applications: The 2.8-Inch Transflective TFT LCD Module
At Saef Technology Limited, we specialize in developing high-performance display solutions for engineers and system designers who require reliability, clarity, and flexibility in challenging environments. Our 2.8-inch Transflective TFT LCD Module (SFTO280PY-7422AN) is built to excel in both bright outdoor settings and low-light indoor conditions—making it the ideal choice for handheld meters, portable instruments, industrial HMIs, and medical devices.
Key Design Advantages for Engineers:
- Superior Optical Performance in Any Light
With a 300 cd/m² high-brightness backlight and a transflective display technology, this module ensures excellent readability under direct sunlight while maintaining low-power operation in dim environments. The 500:1 contrast ratio and 60° wide viewing angle provide consistent visual quality from all orientations.
- Dual Interface Flexibility: MCU & SPI
Designed for seamless integration, the module supports both 8080-series MCU parallel (8/16-bit) and SPI (3/4-wire) interfaces. Driven by the robust ST7789T3 controller, it offers fast response times (16ms typical) and stable communication for real-time applications.
- Wide Operating Temperature Range
Rated for -20°C to +70°C operation and -30°C to +80°C storage, this display is built to withstand extreme conditions—perfect for outdoor, automotive, and industrial systems.
- High Reliability & Longevity
The 4-LED edge-lit backlight delivers an average lifetime of 40,000 hours, while the module undergoes rigorous environmental testing including vibration, ESD (±8kV air/±4kV contact), and thermal cycling to ensure durability in the field.
- Fully Customizable & Ready for Integration
We offer free technical support and semi-custom design services—including touch panel integration (RTP/CTP), connector options, firmware tuning, and mechanical adaptations. Whether you need a drop-in module or a tailored display solution, our engineering team is here to help.
Technical Specifications at a Glance:
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Display Area: 43.2 x 57.6 mm
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Pixel Pitch: 0.06 (H) x 0.18 (V) mm
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Color Depth: 262K
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Power Supply: 2.8V (VCC), 1.8V (IOVCC)
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Dimensions: 50.0 x 69.2 x 2.3 mm
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Weight: Optimized for portable designs
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Compliance: RoHS, REACH, ISO 9001:2015, ISO 14001:2015
Why Choose Saef Technology?
We are more than a supplier—we are your display technology partner. With over a decade of expertise in TFT LCD and touch display solutions, Saef Technology provides:
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Expert-Level Support: Direct access to our engineering team for design reviews, validation, and troubleshooting.
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Fast Prototyping: Short lead times for samples and custom variants.
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Global Logistics: Reliable shipping to the EU, USA, and worldwide.
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Quality Assurance: Every module is tested to MIL-STD-105E standards with AQL-based inspection.
Target Applications:
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Handheld test & measurement devices
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Portable medical monitors
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Industrial control panels
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Outdoor navigation & telematics
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IoT and embedded systems
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Automotive dashboards & marine displays
Get Your Sample or Custom Quote Today
Ready to integrate a high-visibility, high-reliability display into your next project?
Contact our technical sales team for pricing, datasheets, and custom design consultations. We also offer free sample programs for qualified OEMs and engineers.
Mechanical Outline Dimensions
Interface Pin Definition
| Pin No. | Symbol | Function |
| 1 | XL | Touch the left line |
| 2 | YU | Touch the upper circuit |
| 3 | XR | Touch the right end line |
| 4 | YD | Touch the lower line |
| 5 | GND | Ground |
| 6 | IOVCC | Power Supply. 1.8V |
| 7 | VCC | Power Supply. 2.8V |
| 8 | FMARK | Frame synchronization signal |
| 9 | CS | Chip select input pin (active low) |
| 10 | RS/SPI_SCL | Display data/command selection pin in parallel SPI serial interface clock |
| 11 | WR/SPI_RS | Write enable in 8080 MCU parallel interface. Display data/command selection pins in SPI interface |
| 12 | RD | Read enable in 8080 MCU parallel interface. |
| 13 | SDA | SPI interface input/output pin. |
| 14 | SDO | SPI interface output pin. |
| 15 | RESET | External reset input. |
| 16 | GND | Ground |
| 17-32 | DB0-DB15 | MCU parallel interface data bus. |
| 33 | LEDA | LED back light(Anode) |
| 34-36 | LEDK | LED back light(Cathode) |
| 37 | NC | NC |
| 38 | IM0 | Select the MCU interface mode |
| 39 | IM1 | Select the MCU interface mode |
| 40 | IM2 | Select the MCU interface mode |
Absolute Maximum Rating
| Item | Symbol | Rating | Unit |
| Supply Voltage | VDD | - 0.3 ~ +4.6 | V |
| Supply Voltage (Logic) | VDDI | - 0.3 ~ +4.6 | V |
| Driver Supply Voltage | VGH-VGL | -0.3 ~ +30.0 | V |
| Logic Input Voltage Range | VIN | -0.3 ~ VDDI + 0.5 | V |
| Logic Output Voltage Range | VO | -0.3 ~ VDDI + 0.5 | V |
| Operating Temperature Range | TOPR | -20 ~ +70 | ℃ |
| Storage Temperature Range | TSTG | -30 ~ +80 | ℃ |
DC Electrical Characteristics
| Parameter | Symbol | Condition | Specification | Unit |
| MIN. | TYP. | MAX. |
| Power & Operation Voltage |
| System Voltage | VDD | Operating voltage | 2.4 | 2.75 | 3.3 | V |
| Interface Operation Voltage | VDDI | I/O Supply Voltage | 1.65 | 1.8 | 3.3 | V |
| Gate Driver High Voltage | VGH | | 12.2 | | 14.97 | V |
| Gate Driver Low Voltage | VGL | | -12.5 | | -7.16 | V |
| Gate Driver Supply Voltage | | | VGH-VGL | | 19.36 | | 27.47 | V |
| Input / Output |
| Logic-High Input Voltage | VIH | | 0.7VDDI | | VDDI | V |
| Logic-Low Input Voltage | VIL | | VSS | | 0.3VDDI | V |
| Logic-High Output Voltage | VOH | IOH = -1.0mA | 0.8VDDI | | VDDI | V |
| Logic-Low Output Voltage | VOL | IOL = +1.0mA | VSS | | 0.2VDDI | V |
| Logic-High Input Current | IIH | VIN = VDDI | | | 1 | uA |
| Logic-Low Input Current | IIL | VIN = VSS | -1 | | | uA |
| Input Leakage Current | IIL | IOH = -1.0mA | -0.1 | | +0.1 | uA |
| VCOM Voltage |
| VCOM amplitude | VCOM | | | VSS | | V |
| Source Driver |
| Source Output Range | Vsout | | VAN | | VAP | V |
| Gamma Reference Voltage(Positive) | VAP | | 4.45 | | 6.4 | V |
| Gamma Reference Voltage(Negative) | VAN | | -4.6 | | -2.65 | V |
| Source Output Settling Time | Tr | Below with 99% precision | | | 20 | us |
| Output Offset Voltage | VOFFSET | | | | 35 | mV |
Optical Specifications
| Item | Symbol | Condition | Min | Typ | Max | Unit |
| White luminance (Center) | Lv | Θ=0 Normal Viewing Angle IBL=80mA | -- | 300 | -- | cd/m2 |
| Response time | Tr+Tf | | -- | 16 | -- | ms |
| Contrast ratio | CR | | -- | 500 | -- | -- |
| Color Chromaticity (CIE1931) | white | Wx | | -- | 0.301 | -- | |
| | | Wy | | -- | 0.337 | -- | |
| Viewing Angle | Hor | ΘL | CR≥10 | -- | 60 | -- | |
| | | ΘR | | -- | 60 | -- | |
| | Ver | ΘU | | -- | 60 | -- | |
| | | ΘD | | -- | 60 | -- | |
| Brightness uniformity | Avg | Θ=0 | 80 | 90 | -- | % |
| Color Gamut | NTSC | Θ=0 | -- | 55 | -- | % |
| Optima View Direction | Transflective |
Backlight Characteristics
| Item | Symbol | Min | Typ | Max | Unit |
| LED current | IL | - | 60 | 80 | mA |
| LED voltage | VL | - | 2.8 | 3.2 | V |
| Operating LED life time | Hr | 30000 | 40000 | - | Hour |
Contact Us
We love to hear about your projects, If you have any questions, we can be reached at sales2@saef.com.cn
Product Tags:
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2.8-Inch Transflective TFT LCD Display Module | 240x320 Res MCU/SPI | ST7789T3 300 cd/m² | Outdoor & Industrial Use Images
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