<title>50-inch autostereoscopic full-color 3D TV display system</title>

Abstract

This paper reports on a 50-inch diagonal autostereoscopic full-color 3-D TV display system that requires no special glasses and uses 4 color TV cameras with a 3-D color viewfinder, a highresolution liquid crystal (LCD) video projector, and a specially designed lenticular screen. The resulting 3-D image is of high resolution, exceptionally bright, and vividly three-dimensional. The key technologies supporting this 3-D TV display system are a 3-D image display method, a newly developed HDTV LCD color video projector with incredibly high resolution (4.5 million pixels), and a new type of lenticular screen with a "hollow structure". Images from 4 color TV cameras are recorded by 4 professional VTRs with a time code signal, and are multiplexed, pixel by pixel, to form a vertical stripe image projected by the single LCD video projector behind the lenticular screen. Using this 3-D image display method, optical alignment between the projected stripe image and lenticular screen is both accurate and easily attained. The new lenticular screen with hollow structure has resulted in a reduced total screen weight and thickness with increased light transmittance.

A time‐sequential multi‐projector autostereoscopic display

“…Parallax barriers, 5 lenticular sheets, 6 and holographic optical elements 7 have all been used to divide the resolution of a display device between multiple views. The display is almost always a liquid-crystal device because this allows relatively simple alignment of the barrier or lenticules with the pixel structure.…”

Analysis of the viewing zone of the Cambridge autostereoscopic display

“…They normally provide two views, which does not provide movement parallax. Both a four-view 2 and an eightview 3 lenticular display have been demonstrated, but precise alignment of microlenses and pixel array and the high resolution required make more than four views difficult to achieve.…”

P-87: Optimization of Display Image in Fresnel Lens-based Floating Display System Using a Curved Screen

“…Another demerit is the crosstalk between multiple images, because of the possibility of mis-alignment between lenticular-sheet. In addition, a parallax barrier-based autostereoscopic 3D display technique has been developed [5]. It is functionally very similar to that of the lenticular sheet-based system, but this method suffers from a moire-like effect in which the observers see dark bands on the screen, which is resulted from the imaging of the black space between parallax barriers.…”