The use of an LCD equipped with lenticular lenses is an attractive route to achieve an autostereoscopic multi-view 3D
display without losing brightness. However, such a display suffers from a low spatial resolution since the pixels are
divided over various views. To overcome this problem we developed switchable displays, using LC-filled switchable
lenticulars. In this way it is possible to have a high-brightness 3D display capable to regain the full native 2D resolution
of the underlying LCD. We showed the feasibility of LC-filled switchable lenticulars in several applications. For
applications in which it is advantageous to be able to display 3D and 2D on the same screen, we made a prototype
having a matrix electrode structure. A problem with LC-filled lenses is that in the 2D state there is a residual lens effect
at oblique angles. This effect and a possible solution are discussed as well.
In this paper we describe the design of a lenticular based 2D/3D display for mobile applications. This display combines look-around capability with good 3D resolution. In order to allow high resolution datagraphic applications we have developed a concept based on actively switched lenses. A very noticeable problem for such displays is the occurrence of dark bands. We will show that, despite slanting the lenticular and defocusing the lens, banding becomes unacceptable when the display is viewed from an angle. As a solution, we introduce fractional viewing systems to reduce the banding intensity by almost two orders of magnitude. The resulting 3D display can be viewed from any horizontal direction without banding.
We have built a mini-projector with LED light sources that is sufficiently small for portable applications. The projector has a three-panel architecture with transmissive LCD micro-displays in order to combine a high lumen output with a low cost price. The volume of the light engine is 100 cc.
A prerequisite for a wide market acceptance of 3D displays is the ability to switch between 3D and full resolution 2D. In this paper we present a robust and cost effective concept for an auto-stereoscopic switchable 2D/3D display. The display is based on an LCD panel, equipped with switchable LC-filled lenticular lenses. We will discuss 3D image quality, with the focus on display uniformity. We show that slanting the lenticulars in combination with a good lens design can minimize non-uniformities in our 20" 2D/3D monitors. Furthermore, we introduce fractional viewing systems as a very robust concept to further improve uniformity in the case slanting the lenticulars and optimizing the lens design are not sufficient. We will discuss measurements and numerical simulations of the key optical characteristics of this display. Finally, we discuss 2D image quality, the switching characteristics and the residual lens effect.