Abstract

ABSTRACT Auto-stereoscopic 21-inch display with eye tracking having wide viewing zone and bright image was fabricated. The image of display is projected to retinal through several optical comp onents. We calculated optical system for wider viewing zone by using Inverse-Ray Trace Method. The viewing zone of first model is 155mm (theoretical value: 161mm). We could widen viewing zone by controlling paraxial radius of curvature of spherical mirror, the distance between lenses and so on. The viewing zone of second model is 209mm. We used two spherical mirrors to obtain twice brightness. We applied eye-tracking system to the display system. Eye recogn ition is based on neural network card based on ZICS technology. We fabricated Auto-stereoscopic 21-inch display with eye tracking. We measured viewing zone based on illumination area. The viewing zone was 206mm, which was close to theoretical value. We could get twice brightness too. We could see 3D image according to position without headgear. Keywords: Autostereoscopic display, eye tracking, Optical design, Inverse ray trace, viewing zone, neural network

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