A Study on Viewing Zone of Auto-stereoscopic 3D Displays
Date Issued
2012
Date
2012
Author(s)
Chang, Wen-Hui
Abstract
The way of image display has been advanced from 2D to 3D, and with the hardware advancement, the 3D stereoscopic technology becomes more and more advanced. One of the amazing 3D stereoscopic displays is auto-stereoscopic display and its advantage is that observers don’t need to wear extra glasses, thus the auto-stereoscopic display definitely will be the main stream of 3D stereoscopic display, and furthermore the auto-stereoscopic display will be the key technology to make 3D stereoscopic display popular.
For an auto-stereoscopic display, the viewing image quality for the observers depends on viewing position. Therefore, viewing zone is one of the most important topics for 3D stereoscopic displays. Though there are lots of studies on viewing zone, we still need lots of deep researches for further understanding. Thus this thesis proposed a novel evaluation method to describe viewing zone by analytic formula and discussing the affecting factors for viewing zone of the parallax barrier stereoscopic display, such as parallax barrier thickness, the refraction of glass panel, crosstalk and other factors.
One special point should be noticed in this thesis is that owning to using a film for the parallax barrier in the past, the parallax barrier thickness is thin in such display structure. But with the innovation and advance of 3D display, no matter the 2D/3D switchable function or the head-tracking function to modify parallax barrier or the time multiplex system which switching right and left eye image parallax barrier position constantly, the parallax barrier thickness may bring unknown problem. Up to present, there are no studies about parallax barrier thickness and the thesis is the first one. The study not only provides profound understanding on parallax barrier thickness but also provides the designers a new controllable parameter for designing parallax barrier displays. Finally we expect this thesis can provide 3D display researcher a deeper understanding on the dimension, shape, position and other characteristics of viewing zone.
Subjects
auto-stereoscopic 3D displays, parallax barrier stereoscopic display, viewing zone, parallax barrier thickness, binocular effect, glass refractive index, crosstalk
Type
thesis
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