

Product Overview
The 2.7-inch PMOLED organic light-emitting display is an industrial-grade self-emissive display module launched by Hengxunchuang (HxcDisplay), manufactured in Guangdong, China. The product features the SPD0301 controller IC, a resolution of 128x64, and a black-background-yellow-character display with excellent contrast. The module uses a plug-in 30-pin interface, compatible with Parallel, I2C, and 4-wire SPI communication protocols. It operates at a voltage of 1.65–3.3V, has no additional backlight, and relies on PMOLED self-emission technology. The overall module dimensions are 73W×40.24H×2.0T mm, with an operating temperature range of -40℃ to +70℃ and a storage temperature range of -40℃ to +80℃, offering ultra-wide temperature tolerance and ultra-low power consumption. It supports both standard and custom sizes, suitable for industrial control equipment, power terminals, precision instruments, medical devices, and many other products, making it a high-performance display component for industrial applications.
Operating Principle
Relying on the self-emissive properties of PMOLED, the display produces images without requiring a backlight, simplifying the circuitry while reducing overall power consumption.
Equipped with the SPD0301 controller IC and driven by a wide voltage range of 1.65–3.3V, the display delivers stable and smooth image output.
It integrates multiple communication interfaces, including Parallel, I2C, and 4-wire SPI, paired with a plug-in 30-pin interface for quick connection to various host controllers.
Featuring an industrial-grade hardware architecture, it can withstand extreme temperatures from -40℃ to +70℃, ensuring continuous stable operation in challenging environments such as outdoor settings and factory floors.
Standard specifications support customization; dimensions and configurations can be adjusted according to installation requirements and functional needs.
Core Advantages and Selling Points
High-contrast black background with yellow characters ensures strong visual recognition: the combination of black background and yellow text provides outstanding contrast, allowing clear readability under varying lighting conditions—outperforming traditional LCD screens.
Industrial-grade ultra-wide temperature operation with strong environmental adaptability: operating temperature range of -40℃ to +70℃, storage temperature range of -40℃ to +80℃, enabling stable performance even in extreme cold or heat, minimizing damage risk.
Self-emissive design results in ultra-low power consumption: PMOLED’s inherent luminescence eliminates the need for a backlight, effectively reducing device power draw and easing the load on the overall power supply.
Multi-interface compatibility broadens applicability: supporting Parallel, I2C, and 4-wire SPI—the three mainstream communication interfaces—making it compatible with most industrial host controllers currently available, with excellent interface compatibility.
Plug-in 30-pin interface facilitates easy installation and maintenance: its simple plug-in wiring design significantly reduces the complexity of device assembly and subsequent servicing.
Flexible size options with customizable production: offering standard specifications while also providing tailored sizes to meet diverse installation space and structural requirements.
Complete Product Specifications
Product Name: 2.7-inch PMOLED Module
Product Type: Organic Light-Emitting Display (OLED Display)
Brand: Hengxunchuang (HxcDisplay)
Origin: Guangdong, China
Screen Type: PMOLED
Screen Size: 2.7 inches
Resolution: 128x64
Display Effect: Black Background with Yellow Characters
Controller IC: SPD0301
Interface Type: Plug-in 30-Pin
Communication Interfaces: Parallel / I2C / 4-Wire SPI
Operating Voltage: 1.65–3.3V
Backlight Type: None (PMOLED Self-Emission)
Module Dimensions: 73W×40.24H×2.0T mm
Operating Temperature: -40℃ to +70℃
Storage Temperature: -40℃ to +80℃
Size Services: Standard Sizes, Custom Sizes Available
Target Customer Groups
Large industrial control equipment manufacturers, outdoor power terminal companies, precision instrument makers, high-end medical device producers, heavy electromechanical terminal manufacturers, and overseas industrial buyers.
Application Scenarios (Expanding Long-Tail Keywords to Improve Google Rankings)
Assembly of large industrial control panel display modules
OLED screen integration for outdoor power monitoring devices
Installation of display components in high-end medical instruments
Use in human-machine interaction interfaces for heavy electromechanical terminals
Bulk procurement and customization of accessories by industrial equipment manufacturers
Solving Industry Pain Points
Addresses issues of poor visual quality and low recognizability in traditional LCD displays, as well as their vulnerability to damage in low-temperature environments and inability to function outdoors.
Tackles the problem of relatively high power consumption in conventional display modules, which places additional strain on equipment power supplies during prolonged operation.
Resolves the issue of limited versatility in single-interface screens, making it difficult to match with various industrial equipment controllers.
Mitigates the pain point of complex wiring methods and cumbersome assembly and post-maintenance procedures.
Core Product Value
The 2.7-inch PMOLED industrial display provides high-performance display solutions for industrial equipment manufacturers:
High-contrast black-background-yellow-character display ensures clear data readability, enhancing operator experience and work efficiency;
Ultra-wide temperature performance withstands extreme conditions, reducing screen failure rates and lowering after-sales repair costs;
Ultra-low power design effectively saves energy, suitable for outdoor and offline equipment, extending overall battery life;
Multi-interface compatibility combined with a plug-in structure simplifies connection and maintenance processes, shortening assembly time, and with customized services, comprehensively controlling equipment production and accessory procurement costs.
Frequently Asked Questions (FAQ)
Q1: What kind of display effect does this OLED screen provide?
A: It employs a black-background-yellow-character display scheme, offering high contrast and clear visuals that remain easily readable under all lighting conditions.
Q2: How is the product’s temperature resistance? Is it suitable for cold outdoor environments?
A: Operating temperature range is -40℃ to +70℃, with a storage temperature range of -40℃ to +80℃. Its ultra-wide temperature design makes it adaptable to extreme outdoor conditions.
Q3: Which communication interfaces are supported, and what is the voltage range?
A: Compatible with Parallel, I2C, and 4-wire SPI interfaces, operating at a voltage of 1.65–3.3V, suitable for mainstream industrial circuits.
Q4: What type of interface is used, and how easy is it to install?
A: It uses a plug-in 30-pin interface, which is simple and quick to disassemble and reassemble, facilitating equipment assembly and later maintenance.
Q5: Does the screen require a backlight?
A: As a PMOLED self-emissive screen, it does not need an additional backlight, resulting in lower overall power consumption.
Q6: Are custom sizes and bulk orders supported?
A: Standard sizes are available, and customization is also supported, capable of fulfilling large-volume order deliveries.