Product Description
The QIHAN HQ042PMBX-1 is an ultra-compact 0.42-inch OLED display module designed for embedded systems requiring low power consumption, high contrast, and excellent readability in a limited installation space. Featuring a resolution of 70×40 pixels and driven by the SSD1306 controller IC, this OLED display delivers sharp monochrome graphics and text with fast response performance.
Unlike traditional LCD modules, OLED technology generates its own light and does not require a backlight. This allows lower power consumption, higher contrast ratios, and wider viewing angles while maintaining a slim profile.
The HQ042PMBX-1 supports a 4-wire SPI communication interface and operates from a single 3.3V power supply, simplifying integration into portable and battery-powered applications. Its compact structure and stable performance make it suitable for wearable devices, industrial equipment, medical instruments, smart electronics, and handheld devices.
As a professional OLED and TFT LCD manufacturer, QIHAN also provides customized interfaces, touch solutions, and display optimization services for OEM and ODM projects.
Highlights
- Ultra-compact 0.42-inch OLED display module
- Resolution: 70 × 40 pixels
- High contrast for excellent visibility
- OLED self-emitting technology without backlight
- Extremely wide viewing angle (ALL View)
- Low power consumption for battery devices
- Single 3.3V power supply operation
- Built-in SSD1306 controller IC
- 4-wire SPI communication interface
- Fast response speed and stable performance
- Compact design for embedded systems
- Custom interface and solution support available
Specifications
| Parameter | Specification |
|---|---|
| Model No. | HQ042PMBX-1 |
| Display Size | 0.42 Inch |
| Display Type | OLED |
| Resolution | 70 × 40 Pixels |
| Display Color | White (Typical) |
| Viewing Angle | ALL View |
| Luminance | High Contrast Self-Emitting OLED |
| Driver IC | SSD1306 |
| Interface | 4-wire SPI |
| Supply Voltage | 3.3V |
| Touch Driver IC | Can Be Customized |
| Operating Temperature | -40°C ~ +85°C |
| Storage Temperature | -40°C ~ +85°C |
| Display Mode | Passive Matrix OLED |
| Mounting Type | FPC Connection |
| Backlight | Not Required |
Applications
Wearable Devices
- Smart watches
- Fitness trackers
- Health monitoring devices
Industrial Equipment
- Industrial instruments
- Portable testing equipment
- Control systems
Medical Devices
- Portable medical equipment
- Monitoring systems
- Diagnostic instruments
Consumer Electronics
- Smart home devices
- IoT terminals
- Handheld devices
Security Systems
- Access control systems
- Security monitoring equipment
- Portable terminals
Embedded Systems
- Arduino projects
- Raspberry Pi projects
- MCU development boards
FAQ
Q1: What are the advantages of OLED displays compared with LCD displays?
OLED displays provide several advantages:
- Higher contrast ratio
- Wider viewing angles
- Faster response speed
- Lower power consumption
- No backlight required
- Slimmer design
Q2: What controller IC is used in the HQ042PMBX-1?
The display uses the SSD1306 controller IC, providing stable performance and simple integration.
Q3: What communication interface does this display support?
The standard module supports a 4-wire SPI interface. Custom interface options may also be available based on project requirements.
Q4: Can this OLED module be used with Arduino or Raspberry Pi?
Yes. The HQ042PMBX-1 can be easily integrated with:
- Arduino
- Raspberry Pi
- ARM platforms
- PIC
- AVR
- 8051 microcontrollers
Q5: Does the display require a backlight?
No. OLED technology is self-emissive and does not require a backlight, helping reduce power consumption.
Q6: Can QIHAN provide customized solutions?
Yes. QIHAN supports customization including:
- Interface modification
- Touch integration
- FPC customization
- Brightness optimization
- Mechanical structure customization