Craig Allen Jameson and John Joseph Masotta own Parallax Associates, a growing architecture firm in Culver City, Calif.

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Using the 3D Viewing Monitor, users can also highlight positive and negative parallax within each image.

ENGADGET: Panasonic PT-AE8000U projector touts brighter, smoother 3D for king-of-the-hill home theaters

The top screen of the 3DS is obscured by a parallax barrier, so each of your eyes sees a different set of pixels.

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While the company is promising lots of spectacle-free TVs with parallax screens in the next year, at its booth there was just a 42-inch 1080p 3T1 panel on the show floor.

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Asahi in Japan offers the first word on how the 3DS achieves its 3D-ness by suggesting that the new portable game machine with feature a parallax barrier LCD from Sharp.

ENGADGET: Nintendo 3DS to come with '3D control stick,' vibration, and Sharp's parallax barrier 3D LCD?

The 3D Viewing Monitor visually shows that the amount of parallax in the 3D images, which varies according to screen size, is within the safe zone set forth by the 3D Consortium Committee, ensuring a more comfortable viewing experience.

ENGADGET: Panasonic PT-AE8000U projector touts brighter, smoother 3D for king-of-the-hill home theaters

Parallax has plenty of company.

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