2.73 Inch PMOLED Module for Industrial Instruments

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Key Specs

Model P/N

HS027ES04A-V1

Size

2.73″

Resolution

256×128

Brightness

100 (Typ.)(cd/m²)

Viewing Angle

Wide Viewable Angle (CR≥10)

Connector Type

IIC (I2C) / SPI Dual Interface, 8pins Terminal

Operating Temp

-40 ~
70 °C

Overall(mm)

73(W)×
75.96(H)×
2.03(D)
Upgrade Options (OEM/ODM)

huisoar

HS027ES04A-V1

General Features

Brand

huisoar

Panel Size (inch)

2.73"

Model P/N

HS027ES04A-V1

Resolution

256×128

Brightness (nits)

100 cd/m² (Typ.)

Viewing Angle

Wide Viewable Angle (CR≥10)

Contrast Ratio

High Contrast (Implied by PMOLED Self-Illumination)

Response Time

<10ms (Typ.)

Overall (mm)

73(W)×
75.96(H) ×
2.03(D) mm

Active Area (mm)

61.415(W) × 30.695(H)

Refresh Rate

60Hz

Display Colors

Monochrome (Black & White, Optional Single Color)

Panel Type

oled

Connector Type

IIC (I2C) / SPI Dual Interface, 8pins Terminal

Surface Treatment

Hard Coating (4H), Anti-Reflection

Operating Temp

-40 ~
70 °C

Touchscreen Type

Not Supported (Optional Customization)

Storage Temp

-40℃ ~ +85℃

Work Mode

Normally Black

Pixel Format

Dot Matrix (0.241mm Dot Pitch)

Input Voltage (V)

3.3

Weight (g)

50 g(Typ./Max.)

Designed For

Industrial instruments, outdoor equipment, automotive electronics, compact control devices, portable IoT terminals, monitoring equipment

The 2.73 inch PMOLED module for industrial instruments delivers rugged, high-performance visual output with flexible connectivity, engineered for reliable operation in harsh industrial and outdoor environments. With a 256×128 dot matrix resolution, IIC/SPI dual interface, and an ultra-wide operating temperature range, it is optimized for compact industrial control devices, portable terminals and outdoor monitoring equipment, meeting the durability and integration demands of industrial instrument design with RoHS/REACH compliance and ISO9001 quality certification.

Performance Advantages of the 2.73 inch PMOLED module for industrial instruments

Ultra-Wide Temperature Performance for Harsh Environments

This PMOLED module stands out with an industry-leading operating temperature range of -40°C to 70°C and a storage range of -40°C to 85°C, making it suitable for extreme working conditions including cold industrial workshops, outdoor electrical cabinets, high-altitude sites and automotive compartments. Unlike standard display modules, it maintains stable performance across drastic temperature changes, reducing field failure risks and ensuring consistent interface readability for industrial equipment deployed in unregulated environments.

Clear 256×128 Monochrome Graphic Display

Equipped with a 256×128 dot matrix resolution and 0.241mm dot pitch, the module delivers sharp, clear presentation of numerical values, icons, status indicators, menus and simple graphics—perfect for functional industrial instrument interfaces. Its monochrome (black & white, single color optional) output prioritizes fast, accurate data reading over decorative effects, while PMOLED’s inherent high contrast enhances visibility in both bright and dim industrial settings, ideal for compact HMIs and handheld industrial testers.

Low Power Consumption & Durable Surface Design

Leveraging PMOLED’s self-illuminating technology, the module eliminates the need for a backlight system, with operating current controlled at 10mA or below and a 3.3V low input voltage—ideal for battery-powered portable industrial terminals and IoT monitoring devices. It also features a 4H hard coating and anti-reflection surface treatment, resisting scratches, dust and glare in daily industrial use, and maintaining clear readability even in outdoor or high-traffic working environments for long-term reliable operation.

Core Value for Industrial Instrument Project Selection

IIC/SPI Dual Interface for Flexible Controller Compatibility

The 2.73 inch PMOLED module for industrial instruments supports both IIC and SPI communication protocols, with simple 2-wire to 4-wire connection options that streamline circuit design and reduce wiring complexity. It is fully compatible with mainstream control platforms including STM32, Arduino, Linux and Android-based systems, allowing engineers to easily adapt the display to different hardware architectures. This dual-interface flexibility lowers development costs, shortens prototype validation time and improves design adaptability for OEM industrial instrument projects.

Compact Slim Structure for Space-Constrained Integration

With an overall thickness of just 2.03mm and a compact 73×75.96mm outline, the module is engineered for the tight internal spaces of compact industrial control devices and portable instruments. Its lightweight 50g max design and optimized active area (61.415×30.695mm) maximize the use of limited front-panel space while preserving room for batteries, sensors and control boards, supporting efficient internal layout planning for embedded industrial equipment where every millimeter of space matters.

Reliable Driver Architecture & Long Service Life

Powered by the SP8150 driver IC, the module ensures stable signal transmission and consistent monochrome graphic display performance—critical for long-cycle industrial products with extended service lifespans. It boasts a stated service life of more than 10,000 hours, reducing maintenance frequency and replacement costs for professional industrial instruments and monitoring equipment. This long-term reliability makes it a cost-effective choice for industrial projects that require dependable display performance for years of continuous use.

Typical Application Scenarios for Industrial Instruments

Industrial Instruments & Compact Control Panels

This PMOLED module is ideally suited for industrial meters, analytical instruments, compact control panels and industrial monitoring devices, where its wide temperature range, high contrast and 256×128 resolution deliver stable, clear data presentation. The durable surface treatment and reliable driver IC ensure consistent performance in continuous industrial operation, supporting practical, easy-to-operate interface design for industrial measurement and control systems.

Outdoor Industrial Equipment & Automotive Electronics

For outdoor industrial terminals, outdoor IoT monitoring equipment and automotive electronic systems, the module’s -40~70°C operating temperature range and anti-reflection surface treatment make it resistant to extreme weather and outdoor lighting conditions. Its low power consumption and flexible connectivity also align with the requirements of automotive and outdoor embedded systems, providing reliable display performance for in-vehicle control panels and outdoor industrial sensing equipment.

Portable IoT Terminals & Handheld Industrial Testers

The module’s ultra-low power consumption (≤10mA operating current) and compact slim design make it a perfect fit for battery-powered portable IoT terminals, handheld industrial testers and wireless field equipment. The IIC/SPI dual interface simplifies integration into portable hardware, while the long service life and rugged environmental adaptability ensure reliable operation for mobile industrial applications that require on-site data display and long battery life.

The 2.73 inch PMOLED module for industrial instruments stands out as a rugged, integration-friendly solution for harsh-environment industrial equipment, combining ultra-wide temperature performance, flexible dual-interface connectivity, low power consumption and long-term reliability. Backed by ISO9001 quality certification, RoHS/REACH compliance, 1-piece MOQ and 3-7 day fast lead times, it also offers comprehensive customization options including brightness enhancement, single-color customization and interface optimization. Contact the sales team to discuss sample evaluation, engineering support, customization requirements and volume supply plans tailored to your specific industrial instrument project, from initial prototype design to mass production.

Application Scenarios

FAQ

What are the warranty terms and after-sales service for your display products?

Specific warranty terms and after-sales service details are not specified in the provided product information. This information is typically available on request from the manufacturer (Huisoar) and may vary based on the sales agreement, order volume, and region. For industrial projects, it is standard practice to clarify these terms, including warranty duration, return policies, and technical support access, directly with the supplier during the procurement process.

How do you manage supply chain risks for key components like driver ICs or glass substrates, especially for long-term industrial projects?

Supply chain management strategies for key components are not detailed in the provided specs. For long-term industrial projects, it is essential to discuss this directly with Huisoar. Standard industry practices for risk mitigation include multi-sourcing critical components, maintaining strategic inventory buffers, and offering product longevity programs. We recommend inquiring about their component lifecycle management and availability guarantees to ensure stable supply for your project's duration.

What touch screen technologies do you support (e.g., capacitive, resistive, in-cell)?

According to the product information, the standard HS027ES04A-V1 module does not support touch functionality. However, the specification notes 'Optional Customization' for touch. The specific touch technologies available (e.g., resistive, capacitive) are not specified. For projects requiring touch integration, you must contact Huisoar directly to discuss customizable options, associated technical specifications, and any potential impacts on the module's form factor, performance, or cost.

Do you provide technical support for integrating your displays with our existing hardware and software?

The product description emphasizes helping 'engineers simplify controller integration,' which implies support for integration. Typical technical support for industrial modules includes providing detailed datasheets, interface protocols (IIC/SPI), pinout diagrams, and initialization code examples. For specific support levels, such as custom firmware assistance or compatibility testing with your hardware, you should confirm the scope and availability of these services directly with Huisoar during the project planning phase.

Can you provide Micro-LED backlight solutions for high-contrast industrial displays?

This product is a PMOLED (Passive Matrix Organic LED) module. PMOLEDs are self-emissive and do not use a separate backlight system. Therefore, Micro-LED backlight solutions are not applicable to this display technology. For high-contrast requirements, the PMOLED's inherent self-illumination provides the contrast performance as indicated in the specifications.

Do you offer transparent displays with high transparency rates for retail or exhibition applications?

The provided specifications are for a standard, non-transparent PMOLED module designed for industrial instruments. There is no mention of transparent display technology or transparency rates in the product info. For applications requiring transparent displays, such as retail or exhibitions, you would need to inquire with Huisoar about their separate product lines or customization capabilities for such specialized display types.

How do your displays perform in high-vibration or shock-prone environments typical in military or heavy machinery?

The provided specifications do not include explicit ratings for vibration or shock resistance (e.g., MIL-STD standards). The module is designed for 'demanding environments' with a wide operating temperature range, which often correlates with robust construction. For applications in high-vibration or shock-prone environments like military or heavy machinery, you must request specific mechanical reliability test data (vibration, shock, drop) and potential customization for enhanced mounting or conformal coating from Huisoar.

What touch technologies do you support (resistive, capacitive, in-cell) and which do you recommend for high-brightness medical equipment displays?

As previously stated, touch is an optional customization for this module, and specific supported technologies are not listed. For high-brightness medical equipment, common recommendations include projected capacitive (PCAP) for its durability, optical clarity, and multi-touch capability, or resistive for glove/ stylus operation. The final recommendation depends on the required brightness (this module is 100 nits), sterilization needs, and interface requirements. You should discuss these specific application needs with Huisoar for a tailored solution.

Can you provide high brightness displays with 1000+ nits that maintain performance in direct sunlight for outdoor industrial applications?

The specified brightness for the HS027ES04A-V1 is 100 nits, which is not sufficient for direct sunlight readability requiring 1000+ nits. This PMOLED module is not designed as a high-brightness, sunlight-readable solution. For outdoor industrial applications requiring such high brightness levels, you would need to inquire about alternative display technologies (like high-brightness TFT LCDs) within Huisoar's product portfolio or from other specialized suppliers.

Can you support stretched or bar-type LCD screens for specialized applications like automotive center consoles or industrial dashboards?

The provided product is a specific 2.73-inch PMOLED module with a standard rectangular aspect ratio defined by its 256x128 resolution. The specifications do not indicate support for stretched or bar-type screen formats. For specialized applications requiring non-standard form factors like automotive consoles or industrial dashboards, you must contact Huisoar to inquire about their custom design and manufacturing capabilities for tailored display dimensions and resolutions.

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