3.4 Inch Square TFT LCD Display 480x480, 550 nits, RGB Interface with Optional HDMI Driver Board
3.4 Inch Square TFT LCD Display, 480x480, 550 nits – RGB Interface with Optional HDMI Board
This 3.4 inch square TFT LCD display delivers a sharp 480x480 resolution in a compact 1:1 format. With 550 nits of brightness and an all-direction viewing angle, it stays clear and readable in bright environments, which makes it a good fit for smart home panels, instrument clusters, handheld devices, audio equipment and other embedded designs.
The panel uses a-Si TFT technology with 16.7M colors and a standard 40-pin 0.5mm pitch connector. It supports 18-bit RGB with a 3-wire SPI interface for initialization. For faster prototyping, choose the HDMI driver board option and connect the display directly to a PC, Raspberry Pi or other HDMI source, with no custom driver design needed.
Choose the bare panel for custom integration, or the panel with HDMI board for plug-and-play use.
General Specification
| Item | Specification |
|---|---|
| LCD Type | 3.4 inch |
| Resolution (H x V) | 480 x (RGB) x 480 |
| Technology Type | a-Si TFT |
| Pixel Configuration | R.G.B. Vertical Stripe |
| Display Mode | Normally Black |
| Viewing Direction | All |
| Gray Scale Inversion Direction | All |
| Outline Dimensions (W x H x T) | 65.72 x 69.64 x 2.57 mm |
| Active Area | 60.48 x 60.48 mm |
| Touch Screen | Without TP |
| Matching Connector Type | 0.5 mm pitch, 40 pin |
| Backlight Type | White LED |
| Brightness | 550 nits |
| Interface | 3SPI + 18-bit RGB |
| Number of Colors | 16.7M |
Key Features
- Square 1:1 format: 3.4" active area of 60.48 x 60.48 mm, suited to dials, gauges and compact UIs
- 480x480 resolution: sharp text and graphics on a small screen
- 550 nits high brightness: good readability in bright indoor and semi-outdoor use
- Wide viewing angle: all-direction viewing, no gray scale inversion
- 16.7M colors: vivid, accurate color
- 18-bit RGB + 3-wire SPI: standard interface for MCU and SoC platforms
- Optional HDMI driver board: plug-and-play connection, ideal for testing and quick projects
- Slim design: only 2.57 mm thick
- 40-pin 0.5mm pitch FPC: common connector, easy to design in
- Without touch panel: a cleaner display-only option (contact us if you need a touch version)
DRAWING & Interface Pin Function



Test Demo video