U.S. 3M display with LED light source and LCOS panel of ultra small projector

[BP] the Nikkei news agency reported the successful development of the 3M can be in the hands of the mini projector products like a mobile phone, and in the "2008 International Consumer Electronics Show (2008 International CES)" on the display. Images can be projected at about 20 inches in the tens of centimeters. The company plans to supply the equipment manufacturer OEM with a "moving projection engine" for assembling light sources and panels on a self-developed optical system". The engine has been able to supply, the company hopes to find suppliers in 2008.

Engine development, 3M uses a LED light source and LCOS panel. On the choice of LED light source and the LCOS panel, 3M explained: "because it can meet the following four conditions: miniaturization, high efficiency, good quality, moderate price" (3M). The company's commentator said: "LED is cheaper than laser, and there is no spot noise (image flicker noise). Although some people do not care about the speckle noise, but also a lot of people care about".

The projection engine for the use of monolithic LCOS panel veneer form. The number of pixels in the LCOS panel is 640 x 480 VGA. Because the projection PowerPoint picture, the minimum resolution must reach VGA. In the demonstration of the exhibition, the prototype is used to read the image from the SD card, and then the projection is performed. The company in the CES booth booth not only exhibited a small projector, but also on the projection engine.

Figure 1: ultra small projector (left), engine (right)

Figure 2: the development of the mobile projection engine

Figure 3: using a prototype live demonstration

Source: Technology Online