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A 4 inch square portable monitor with a capacitive touch screen and toughened glass cover

WaveShare

WaveShare 4inch DPI Touch Screen LCD (C) 720x720 portable monitor

SKU CH-YG9N-KMQ1X

A 4-inch square capacitive touch display with 720x720 resolution, DPI666 interface and up to 60Hz refresh rate for Raspberry Pi 40-pin GPIO

  • CPU TypeOther
  • 720×720 square IPS panel gives sharp detail for Raspberry Pi projects
  • Capacitive 5-point touch with 6H toughened glass resists daily handling
  • DPI666 interface drives the display at up to 60 Hz for smooth motion
  • Direct 40-pin GPIO fit works with every Raspberry Pi model listed
  • Pre-configured support for Raspbian and Kali gets you running faster

Square 720×720 DPI Touch Display

This four-inch square portable monitor delivers a 720×720 hardware resolution through a DPI666 interface driven directly by the Raspberry Pi 40-pin GPIO header. It targets makers and developers who need a compact capacitive touchscreen for embedded projects running Raspbian or Kali Linux.

Passive thermals with 60 Hz refresh

The panel operates without active cooling, drawing power from the host board while maintaining a refresh rate up to 60 Hz. A toughened glass cover rated at 6H hardness protects the IPS surface, so normal desktop interaction stays silent and cool without external fans or heatsinks.

Steady 60 Hz output under continuous load

Driven by the Raspberry Pi DPI666 pathway and I2C touch controller, the display sustains its 60 Hz frame rate during extended sessions rather than throttling after a short burst. Five-point capacitive touch remains responsive throughout prolonged use, making the screen reliable for long-running kiosk or dashboard applications.

Highlights

  • 720×720 square IPS panel gives sharp detail for Raspberry Pi projects
  • Capacitive 5-point touch with 6H toughened glass resists daily handling
  • DPI666 interface drives the display at up to 60 Hz for smooth motion
  • Direct 40-pin GPIO fit works with every Raspberry Pi model listed
  • Pre-configured support for Raspbian and Kali gets you running faster

Specifications

CPU TypeOther

Questions about this item

How do I connect this 4inch display to a Raspberry Pi using the 40pin GPIO and DPI666 interface?

Align the 40pin header on the LCD with the Raspberry Pi GPIO pins, seat it firmly, then enable the DPI666 overlay in config.txt so the 720x720 panel runs at up to 60Hz.

What ongoing care does the capacitive touch panel with toughened glass cover require?

Clean the 6H hardness glass with a microfibre cloth and avoid sharp impacts; the I2C touch controller needs no calibration or firmware updates.

At what point does the 60Hz refresh rate become the limiting factor during continuous operation?

The panel is specified for up to 60Hz via DPI666; sustained full-frame updates at that rate are the first ceiling you will hit under heavy graphical load.

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