Sharp Reveals 4-Color 3D TV Technology

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Mahwah, N.J. - Showing that it has eyes for 3DTV too, Sharp announced in Japan Monday that it has developed 3D technology around it new four-color LCD TV system.

Like competitive systems in the market now, Sharp's system requires the use of special 3D active-shutter glasses.

Sharp explained that most 3D LCDs use a system based on time-sequential display technology using special active LC (liquid crystal) shutter glasses. Images intended for the left and right eye on the LCD screen are presented sequentially, alternating between the two perspectives.

The LC shutters in the special 3D glasses are synchronized with the display, "opening" (becoming transparent) and "closing" (becoming opaque) in such a way that the left and right eye see separate images, Sharp said.

The human brain combines these two slightly different images to create the perception of depth in a three-dimensional image.

The drawback to the system, Sharp said, is that displaying 3D images on a conventional display using this system yield low brightness and crosstalk in the image.

Sharp's newly developed 3D LCD system

combines five proprietary LCD technologies, including UV2A technology, Sharp's core LCD TV panel technology, four primary-color technology, FRED technology and side-mount scanning LED backlight technology.

The system optimizes LCD for 3D TV by increasing screen brightness when displaying 3D images 1.8 times higher than that of the conventional displays, while minimizing crosstalk.

Sharp's four-primary-color technology, currently marketed in 2D as Quattron, utilizes four primary colors, adding Y (yellow) to the three conventional primary colors of R (red), G (green), and B (blue).

Sharp said this technology contributes to brighter, more vivid colors using higher light-transmission efficiency through the panel and a wider color gamut, which had been difficult to attain on conventional three-primary-color displays.


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