PicoP Display Engine - How it Works

Microvision’s PicoP display engine is used in Pico Projectors Displays, Vehicle Displays, and Wearable Displays. The PicoP display engine is comprised of a MEMS scanner, Red, Green and Blue Laser Light Sources, Optics, and Electronics. The PicoP display engine includes the drive electronics that acquire and process signals from a data source to control and synchronize the color mix and placement of individual pixels.
Each color pixel is generated by combining modulated red, green and blue laser light sources. The intensity of each of the light sources is varied to generate a complete palette of colors and shades. For example, red pixels require the red laser be turned on whereas the blue and green lasers are turned off. For purple pixels, red and blue lasers are turned on whereas the green laser is turned off.
The MEMS scanning mirror directs the beam of light toward the projection surface in the pico projector case. For other applications unique optical elements direct the beam of light toward the additional optics external to the PicoP display engine. For example, in the case of a head-up display there are external optics that ensure the image is viewable within the driver’s eyebox.
In the case of a wearable displays there are additional optics that are embedded into fashionable or protective eyeglasses. The pixels are arranged by a repetitive horizontal scanner motion that rapidly sweeps the light beam to place the pixels into rows and a vertical scanner motion that moves the light beam up and down to points where successive rows of pixels are drawn. This process is continued until an entire field of rows has been placed and a full image appears to the user.
The image is projected to the users eye, wall, or any other surface.
Since the PicoP display engine uses a single beam of light and a small scanning mirror to create an image, we can create a large image from a small package.

http://www.microvision.com/technology/picop.html