Sony SXRD 4K manual

further still, with pixels that are roughly 1/4 the area of HD pixels at a given screen size. In this way, the gaps are rendered all but invisible with SXRD 4K projection.

Here's an enlargement of a section of the screen where an HD projector shows four pixels (left). In this same area, a 4K projector shows 16 pixels (right). This makes the gaps between the pixels far less visible.

Next, every Sony 4K projector can use Intelligent Smoothing, a Sony circuit that scales an incoming HD or 2K picture up to the resolution of the 4K screen. In the process, Intelligent Smoothing interpolates new display pixels "in between" the source pixels. In HD-to-4K upscaling, the projector circuitry creates three new pixel values for each pixel in the source signal. These new pixel values do not represent additional picture information. (That can only come from the source.) But the interpolated pixels do enable a more seamless display, for a visible reduction in stairstep jaggies.

Sony 4K projectors feature Intelligent Smoothing, a circuit that performs HD-to-4K upscaling. For each pixel in the HD source (dark circles), the circuit creates three new pixel values (light circles) for a more seamless picture.

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