Embedded devices, such as smart home appliances, medical equipment, and in-vehicle infotainment system, often use displays and touchscreens. These devices are usually designed for specific tasks or functionalities, so their displays and touchscreens may have specific purposes or features.


The main role of displays in embedded devices is usually to provide an interface for users to see the device's status information, feedback, or perform operations.

  • Status display: For example, a washing machine display may show the current progress of the washing program, or a microwave display may show the remaining heating time.
  • Feedback information: For example, a medical monitoring device display may show a patient's vital signs such as heart rate and blood pressure.
  • Operation guidance: For example, an in-vehicle infotainment system display may show maps, navigation guidance, etc.


Touchscreens are typically used as input devices in embedded devices, allowing users to directly interact with the screen.

  • Direct control: For example, users can select or adjust settings on a smart home appliance touchscreen, or input destinations on a car infotainment system touchscreen.
  • Convenient interaction: For certain embedded devices, such as portable medical devices or industrial control devices, touchscreens provide a convenient and intuitive way of interaction.
  • Multi-touch operation: Many touchscreens support multi-touch, allowing users to use more complex gestures to control the device.

In summary, the main role and function of displays and touchscreens in embedded devices is to provide a user interface that makes the device easy to use and understand.