Waveshare
4inch DSI Round Touch Display, 720 × 720, IPS, 10-Point Touch
A 4-inch round IPS touchscreen display from Waveshare that connects to the Raspberry Pi via the DSI (Display Serial Interface) port. With a 720 × 720 resolut...
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A 4-inch round IPS touchscreen display from Waveshare that connects to the Raspberry Pi via the DSI (Display Serial Interface) port. With a 720 × 720 resolution, 170° viewing angle, and 10-point capacitive touch through optically bonded toughened glass, it delivers excellent visual quality and responsive touch input in a unique circular form factor.
The display connects directly to the Pi's DSI ribbon cable port and the touch controller communicates over I2C. Brightness is adjustable via software. A driver is required for Raspberry Pi OS.
Key Features
- 4-Inch Round Display – Unique circular form factor for smart home panels, gauges, and dashboards
- 720 × 720 IPS Panel – High resolution with 170° wide viewing angle
- 10-Point Capacitive Touch – Responsive multi-touch via I2C interface
- Toughened Glass – Up to 6H hardness with optical bonding for clarity and dust protection
- DSI Interface – Direct connection to Raspberry Pi DSI port, no USB or HDMI required
- Software-Adjustable Brightness – Control backlight brightness from the OS
Specifications
- Display Size: 4 inches (round)
- Resolution: 720 × 720
- Panel Type: IPS
- Viewing Angle: 170°
- Display Interface: DSI
- Touch Type: Capacitive, 10-point
- Touch Interface: I2C
- Touch Panel: Toughened glass (6H hardness), optical bonding
Compatibility
- Raspberry Pi 4B
- Raspberry Pi 3B+ / 3A+
- Raspberry Pi CM3 / CM3+ / CM4 (some base boards may require an adapter cable)
- Requires Raspberry Pi OS with driver installation
Ideal For
- Smart home control panels
- In-vehicle displays and dashboards
- Consumer electronics interfaces
- Industrial equipment HMIs
- Custom gauge and instrument clusters
Package Contents
- 1× 4-inch DSI Round Touch Display
- 2× FPC 15-pin cable (~50 mm)
- 1× Screw pack
Resources
- Waveshare Wiki – 4inch DSI LCD (C) – Drivers, documentation, and setup guide
Jargon buster
Plain-language definitions for the technical terms used above.
- DSI
- DSI stands for Display Serial Interface, a high-speed connection commonly used to send video data from a computer board to a display. It matters because DSI signals are not simple GPIO wires, so the cable, connector, and signal routing need to match the display interface.
- FPC
- FPC stands for flexible printed circuit, a thin flat flexible cable or connector style often used where space is tight or some movement is needed, commonly for displays, cameras and other high-density connections. Connecting to an FPC connector generally needs a matching cable with the correct pin count, pitch and contact orientation.
- HDMI
- HDMI is a common digital video and audio connection used by computers, media players, and many displays. If a display kit has HDMI input, it is usually much easier to test with a single-board computer because it can act like a normal monitor.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- IPS
- IPS is a type of LCD panel that keeps colours and contrast more consistent when viewed from an angle. This matters for small displays that may be mounted in a dashboard, handheld project, or enclosure where the viewer is not always looking straight on.
- Multi-touch
- Multi-touch means the touchscreen can detect more than one finger contact at the same time. This matters for interfaces that use gestures such as pinch-to-zoom, two-finger scrolling, or on-screen controls used together.
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