Mitsubishi Electric to Launch 75-inch Laser Rear Projection 3D TV

Jul 30, 2010
Shinya Saeki, Nikkei Electronics
Mitsubishi Electric's 75-inch laser rear projection TV
Mitsubishi Electric's 75-inch laser rear projection TV
[Click to enlarge image]
The TV comes with two pairs of special glasses
The TV comes with two pairs of special glasses
[Click to enlarge image]

Mitsubishi Electric Corp announced a 75-inch laser rear projection TV that can display 3D images July 29, 2010.

The TV, "Laservue," is accompanied by two pairs of special glasses for viewing 3D video. It will be released Aug 21, 2010, in Japan.

Mitsubishi Electric is selling 3D laser rear projection TVs in the US, but this is the first time that it will launch a 3D laser rear projection TV in Japan.

"Because the 3D market is being rapidly established, there is a chance to enter the Japanese market," the company said. "Considering the current status of Japanese houses, the number of households that need such TVs is limited in Japan. So, we are considering to sell them for digital signage, amusement facilities and so forth."

Because Mitsubishi Electric said that the price will be ¥10,000 (approx US$116) per 1 inch, the 75-inch laser rear projection TV is expected to be priced at about ¥750,000. The company aims to sell 200 units per month.

The Laservue uses RGB color lasers as its light source. As in the case of digital cinema theaters, 3D images are displayed by using Texas Instruments Inc's "DLP (digital light processing)" chipset. The number of its display element, "DMD (digital mirror device)," is 960 x 1,080.

It is possible to display 2D video with a resolution of 1,920 x 1,080 pixels. When 3D video is displayed, the images for the right and left eyes are displayed in a time-sharing manner, and the liquid crystal shutters of the glasses are opened and closed in sync with the images. The Laservue supports three 3D video formats: side-by-side, top and bottom and checkerboard.

Mitsubishi Electric cited the following three advantages over other companies' products. First, the Laservue has a 175% color gamut on NTSC standards, which is twice as wide as that of a normal LCD TV. It was realized by using a single wavelength laser for each of the RGB light sources, the company said.

Second, Mitsubishi Electric reduced cross-talk, a phenomenon where images for the right and left eyes interfere with each other. It was possible because the response time of the DMD (display element) is several microseconds, which is much faster than those of LCD and PDP panels.

Third, despite its large size of 75 inches, the rated power consumption of the Laservue is 305W (160W when the TV is actually used). The screen size of the 75-inch TV is four times larger than that of a 37-inch LCD TV. When four units of the MXW300, Mitsubishi Electric's 37-inch LCD TV, are used, the rated total power consumption is 572W (143W x 4).