Sony is working on a futuristic head-mounted display that immerses the viewer in 3D video.

The device, which is still only a prototype, was unveiled at a Sony news conference at the Consumer Electronics Show in Las Vegas on Wednesday evening. (See video of the device on YouTube.)

“We are working on prototypes of new 3D personal displays to keep us ahead in offering a better personal experience to consumers,” said Hiroshi Yoshioka, executive deputy president of Sony. “The first prototype is this Sony headmount display.”

Inside are two OLED displays that provide a high-quality, high-contrast image.

“You can enjoy a theater-like experience on the couch or in flight, with a virtual large screen and powerful sounds,” he said, joking that it allowed him to chase higher scores on the PlayStation 3’s Gran Turismo 5 without getting bothered by his wife.

A test of the prototype after the keynote backed up Yoshioka’s claims of a clear, vivid 3D image. The glasses required a quick calibration, so the images from the screens were correctly aligned to each eye, but after that they worked without a problem.

Sony has no launch date for the display, which is still being developed.

Two years ago at CES, Sony showed off a prototype head-mount display that showed 2D images. That device still hasn’t come to market.

It wasn’t the only 3D prototype on show. Sony also had no-glasses 3D televisions and a Blu-ray Disc player with 3D screen.

Just like the head-mount display, Sony says the no-glasses 3D TVs and Blu-ray player are prototypes. There’s no word on when they might be available.