At last year’s CEDIA we reported on a new DLP imagining chip from Texas Instruments that offered one-half the pixels required for full 4K resolution. To produce 4K, the digital micromirrors first display half the pixels in the image, then microseconds later shift by a fraction of a pixel to show the others. While this is similar to the pixel shifting (a.k.a. wobulation) now used by JVC in most of its projectors (the new BLUEscent excepted), and by Epson in its laser model, TI argues that its micromirrors can shift far more rapidly.
from
http://www.soundandvision.com/content/sim2-projector-advances-4k-%E2%80%9Cwobulation%E2%80%9D
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