Panasonic Announces 3D TV With Built-in BD/HDD Recorder
Panasonic Corp announced the "3D Viera RT2B" series of 3D PDP (plasma display panel) TVs July 21, 2010.
The 3D Viera RT2B comes with a Blu-ray Disc (BD) recorder supporting 3D video and a 500-Gbyte HDD (hard disk drive). It also has a function to convert normal 2D video to 3D.
"With this product, it is easy to record and play 3D video," said Shiro Nishiguchi, director of the Corporate Management Division for Digital AVC Products at Panasonic.
The 3D Viera RT2B comes in 46-inch and 42-inch sizes. It will be released Aug 27, 2010, in Japan. There are no manufacturer's suggested retail prices, but the expected street prices of the 46-inch and 42-inch models are ¥440,000 (approx US$5,072) and ¥390,000, respectively.
"Compared with our 3D TVs that have the same sizes but do not have a BD/HDD recorder, the prices (of the new products) are about 90,000 yen higher," Nishiguchi said. "However, we consider they are more reasonable compared with the case where a 3D TV and a BD/HDD recorder are separately purchased."
The 3D Viera RT2B is accompanied by a pair of special glasses. But Panasonic will release small, medium and large size glasses that can be used with all of the company's 3D TVs on the same day as the new TV will be launched.
They are expected to be priced at about ¥13,000. The weights of the small, medium and large size glasses are approximately 38, 39 and 40g, respectively, which are lighter than the glasses accompanying the TV (about 63g). The lighter weights were realized by, for example, reducing the thickness of the lens.
Furthermore, they are equipped with a built-in lithium-ion (Li-ion) battery and can be continuously used for more than 30 hours per charge.
Advantage of PDP stressed
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Advantage of PDP stressed
For displaying 3D images, Panasonic used the frame sequential method, which combines a 120Hz-driven PDP and glasses with liquid crystal shutters. The same method was employed for the 3D Viera VT2, which the company released in April 2010 (See related article).
Though the frame sequential method is known to generate cross-talk, a phenomenon where images for the right and left eyes interfere with each other, Nishiguchi said, "Because the response speed of PDP is fast, cross-talk seldom occurs in the first place."
The PDP used for the RT2B series has the same specifications as the PDP equipped in the VT2 series. For the panel, the afterglow time of phosphors was shortened by improving the phosphor material and the method of controlling light emission. The contrast ratio of the panel is as high as 5,000,000:1.
"We realized a high capability of rendering black color and low cross-talk at high levels," Nishiguchi said. "It is possible to reduce cross-talk even with devices with slower response speeds such as LCDs. For example, there is a method of showing black color until the brightness reaches a point where cross-talk does not occur. With this method, however, it is not possible to draw dark parts, and the image loses contrast."