A 4K projector is a type of video projector that displays images with a resolution of 3840 x 2160 pixels, which is four times the resolution of standard 1080p projectors. This higher resolution provides sharper and more detailed images, making it ideal for home theaters, presentations, and large-screen viewing experiences. These projectors use advanced technology to enhance color accuracy and brightness, often incorporating features like HDR (High Dynamic Range) for improved contrast. Many 4K projectors are compatible with various media sources, including streaming devices, Blu-ray players, and gaming consoles, allowing users to enjoy high-quality content easily.