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LCD Nanotube 3D Display

LCD Nanotube 3D Display

A new application of carbon nanotube technology merged with liquid crystal displays allows creation of display components with three dimensional characteristics.

3D liquid crystal device made with carbon nanotubes – [eng.cam.ac.uk]

(Nanowerk News) Dr. Tim Wilkinson from the University of Cambridge Department of Engineering’s Photonics Research Group has made an exciting breakthrough, he has combined liquid crystals with vertically grown carbon nanotubes to create a reconfigurable three-dimensional liquid crystal device structure. This offers completely new ways to control molecules in liquid crystals, allowing the crystals to move in a variety of directions to create optical components such as lenslet arrays. This technology is still in the early phase of development, but recent trials indicate that potential applications exist in adaptive optical systems such as the wavefront sensors used in optometry, digital video cameras, optical diffusers and emerging head-up display devices.

Building the Perfect 3D Hologram

Liquid crystals are potentially a very exciting technology for creating a real-time high- resolution three-dimensional (3D) display system. There have already been several different attempts to do this including lenticular flat panel displays, autostereoscopic systems and volumetric systems. Recently, amplitude holograms have been used to demonstrate a full-color 3D projection display by Qinetiq1, however this system was bulky, expensive and ultimately limited by the liquid crystal amplitude holograms. For the reproduction of a full 3D image, a fully complex hologram is the ultimate solution, but is very difficult to display using current technology. A purely phase-only hologram (or kinoform) is the best solution that we have for building 3D display at the moment, however there are limits due to the way in which a liquid crystal can be used to modulate a phase-only hologram. We have been developing a new liquid crystal device structure using a vertically grown multi-wall carbon nanotube (MWCNT)2 as a 3D electrode structure which allows a much more complicated phase-only hologram to be displayed using a conventional liquid crystal material.

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