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    Due to the popularity of the 3D films, 3D television technology is gaining momentum and major television manufacturers have started development of the 3D television technology.


    There are several methods that TV manufacturers use to create 3D images on an LCD television, the 3 primary methods of 3-D home theater technology used in upcoming years are:


    1. Lenticular viewing: This technology is pioneered by Philips. TV sets that use this technology can be watched without using glasses. The TV set uses a lens that can send different images to each eye, which means a viewer’s left eye will see a completely different image from his/her right eye, emulating the viewer’s two eyes' use of stereopsis. The one weakness of lenticular viewing is that a viewer must sit in a very specific spot in front of the TV. This limits the number of people to watch the TV at the same time due to its small viewing angle.


    2. Passive glass systems: This technology is developed by Hyundai using LCD monitor which will allow both 2D and 3D images to be viewed. Viewers will need to wear the traditional glasses to watch the 3-D images. The TV has two overlapping images and the glasses have polarized lenses. Each lens is polarized so that it can see only one of the two overlapping images. This technology is very feasible and 40 to 50 inch LCD currently.


    3. Active glass systems: This technology is developed by Samsung & Mitsubishi and it is very similar to the passive glass system, except that the glasses do all the work. The glasses synchronize with the refresh rate of the TV and then they alternate the polarization of each lens, making the wearers of the glasses see 3-D images. This technology enables viewers to switch between watching a 2-D movie and 3-D movie. However the glasses could be very expensive.