Description Waveshare LF40-480480-ARK is a compact 4-inch IPS capacitive touch display with 480 × 480 resolution, designed for Luckfox Pico Ultra and Luckfox Pico Ultra W RGB screen projects. It uses a parallel RGB LCD interface and RGB666 data transmission, making it suitable for embedded UI, compact dashboards, and touch-based control interfaces. This Waveshare 4inch IPS capacitive touch display integrates a GT911 touch chip, 400cd/m² brightness, and a square display layout that works well for device status panels, icon-based control pages, and round-style UI compositions. It is a practical module for developers building small smart terminals and embedded HMI systems on Luckfox platforms. Features 4-inch square IPS display with 480 × 480 resolution. Capacitive touch with GT911 touch controller. RGB666 interface for parallel RGB screen applications. 400cd/m² brightness for clear display in embedded projects. Compact 84.2 × 84.2mm module outline for space-limited hardware designs. Display area 71.86 × 70.18mm suited for dense icon and menu layouts. Supports Luckfox Pico Ultra and Luckfox Pico Ultra W RGB display examples. Suitable for embedded control panels, handheld devices, and compact HMI terminals. Square-format display helps create balanced dashboard and instrumentation interfaces. Single-module package keeps integration simple for prototype and production evaluation. Specifications Item Specification Model LF40-480480-ARK Display Size 4 inch Resolution 480 × 480 Display Panel IPS Touch Type Capacitive Touch Chip GT911 Brightness 400cd/m² Outline Dimension 84.2 × 84.2mm (H × V) Display Area 71.86 × 70.18mm (H × V) Communication Interface RGB666 Applications Luckfox Pico Ultra RGB display projects requiring 480×480 square UI output. Embedded HMI panels for control, status, and local configuration. Smart device dashboards with touch interaction and compact layouts. Portable instrument interfaces and handheld monitoring terminals. Industrial and maker prototypes that need a small IPS capacitive touch module. Touch-based menu systems with icon grids, gauges, and circular controls. Product List LF40-480480-ARK ×1 Other Content The LF40-480480-ARK is built for RGB screen workflows on Luckfox Pico Ultra series boards. In the official RGB screen setup, image data uses RGB666. The provided image defaults to 720×720 in the shared example workflow, and for 480×480 resolution screens the display setting can be switched by pressing the development-board BOOT button after startup as documented in the official RGB screen guide. For practical development, the 480×480 square format is often easier to use than narrow rectangular displays when building compact control pages, quick setting panels, and center-focused instrumentation layouts. The Luckfox Pico Ultra W shown in example images is for reference only and is not included. For related background and development context, see OpenELAB articles on the Waveshare ecosystem and Luckfox edge AI development. Resources Luckfox wiki: RGB Screen for Luckfox Pico Ultra Luckfox documentation center Luckfox Pico documentation Waveshare documentation center FAQ Q: What is the resolution of the LF40-480480-ARK?A: It has a 480 × 480 hardware resolution. Q: Does this display support touch?A: Yes. It supports capacitive touch and uses the GT911 touch chip. Q: What interface does this display use?A: It uses an RGB666 parallel RGB interface. Q: Is the Luckfox Pico Ultra W board included?A: No. The development board shown in usage examples is for reference only and is not included.
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