Computer holographic stereogram (CHS) is useful for holographic 3D TV because it is constructed from
the multi horizontal viewpoint plane images and is compatible to the multi-view point images. Each
hologram is recorded as a slit hologram (element hologram) but total viewing area and the number of the
element holograms have been limited to some extent by the size and the resolution points of LCD.
Therefore we used two LCDs for making CHS and deposited them horizontally and increased the viewing
points to two times and extend the display area to satisfy the binocular parallax. We considered how
viewing area becomes extended. We consider how we could improve the characteriostics of the images of
CHS. From now we consider the condition such as transmission and real time calculation about the