The Korean electronics manufacturer LG has quietly slipped under the technology radar with its 3D displays but all that is set to change with ambitious plans to introduce a system for consumers in 2009.
Using 'lenticular' lenses, LG's code named M4200D does not require special glasses to achieve a 3D effect. LG's approach uses transparent cylindrical lenses known as lenticules. Lenticules are placed onto a transparent sheet, which is fixed onto an LCD. The transparency of the lenticular sheet is crucial because it allows for full brightness and contrast.
The lenticular sheet is fixed onto an LCD panel so that the image plane of the LCD is at the focal plane of the lenses. The viewer's eye observing the screen perpendicular to the display sees the portion of the LCD that is directly under each lens. The other eye, observing the screen from a different angle, sees a portion of the LCD that is off-center under each lens, the two different views creating the perception of depth.
The only downside seems to be 'an optimum viewing distance' of 4m and early indications are that for the technology to work effectively this distance must be pretty much adhered to. The viewing distance however is not restricted to 'head on' viewing with movement form side to side permissible.
LG are planning a 42in version of the 'Flatron M4200D' which will offer a Full HD (1920 x 1,080) resolution, 500cd/m2 brightness, 8-millisecond response time along with a 1600:1 contrast ratio.
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