Sony SXRD 4K manual Sxrd Microdisplay

The SXRD Microdisplay

In the United States, literally hundreds of fixed-pixel projector models are available from dozens of companies. These projectors serve every conceivable market from home television rear projection to custom installation front projectors, portable business projectors, fixed installation projectors, large venue projectors and digital cinema projectors. But behind the apparent diversity, almost every one of these projectors depends on just three types of microdisplays.

High Temperature Polysilicon Liquid Crystal Display (H-LCD)is a transmissive technology in which the light shines through the panel. Digital Light Processing™ (DLP™) panels use a reflective micro-mirror array. Liquid Crystal on Silicon (LCoS) is a category of reflective panels that includes the Direct drive Image Light Amplifier (D-ILA™) display.

From the outset, Sony was determined to create a fundamentally better microdisplay. We set our sights on an ambitious development project, targeting the full range of projector performance:

•High Resolution. We were committed to breaking through the conventional limits of projector performance, delivering the first consumer microdisplay projectors with full 1920 x 1080 HD display, and the first commercially-available professional projectors with 4096 x 2160 resolution.

•High Pixel Density. Microdisplay panel size has an impact not only on the cost of the panels themselves, but also on the cost of the associated optical engine and projection lens. For this reason, Sony sought to achieve maximum pixel count in minimum space.

•High Aperture Ratio. Aperture ratio, also known as fill factor, describes the percentage of screen area occupied by active pixels. Larger gaps between the pixels, such as those used in H-LCD panels, reduce the aperture ratio and heighten the visibility of the individual pixels.

•Accurate Motion Rendering. Some displays can render still pictures beautifully, yet introduce unwanted blur during fast motion sequences. Slow panel switching is the culprit. Sony aimed for high switching speed.

•High Contrast Ratio. Resolution by itself does not guarantee picture quality. Resolution and contrast work hand-in-hand to create the perception of image detail.

•Low Dark Level. Some liquid-crystal designs tend to create milky blacks. Sony sought to overcome this limitation.

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