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...
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 flat flexible cable or connector style often used where space is tight. It matters because this breakout needs the correct pin count and pitch FPC cable to connect reliably to the display or high-speed interface.
- 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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