Three dimensional motion picture technologies

We introduce various 3D motion picture technologies, from the commercially available stereogram to a spatial image methods such as holography. We show a magneto optical spatial light modulator with sub-micron pixels driven by spin transfer switching (spin SLM) as a holography display device. It has a potential to solve the long-standing narrow viewing zone issue. We have developed the spin SLM with a transistor back plane which plays an important role for extending large scale. The fabricated spin SLM has 10 × 5 pixels with magnetic tunneling junctions with backplane transistors. We have successfully demonstrated its electrical operation with as low current density as 0.6 MA/cm² which is one of the smallest current density with spin transfer switching, and confirmed its contrast change by magnetization switching in light modulation elements. In summary, we have shown that the Spin SLM with backplane transistor technology could be crucial technology to solve the critical issue for the electrical holography.