Autostereoscopic 2D-3D Switching Display With Multi-Electrically Driven Cylindrical Liquid Crystal Lens
In order to get more natural 3D sensation from displays, many researchers and manufacturers were attracted to invest in the development of 3D display technology in recent years. These technologies make it possible for the users to obtain more immersive experience by adding the real depth to the visual content shown on the display. In the case of non-glasses lenticular lens sheets must be prepared. However, since most of display applications have majority in displaying 2D image content, the fixed optical elements used for the 3D modes cause the degradation of the displayed 2D image quality. To overcome the degradation of 2D image quality under a given 3D displays, optical paths must be controlled by switching the optical elements to change 2D and 3D modes. In this thesis we designed an optical component that can switched between 2D and 3D images, and estimate the focusing capability to reduce the effect of crosstalk. So that can enhance the image quality of 3D images. In the simulation results, an optimized structure was designed to fit the lens-like distribution. The lens-like distribution has vivid improved compared to that of conventional double electrode LC lens. In experiment, the lens-like distribution was achieved as well. The measurement result also indicates that our device is closer to the ideal lens-like distribution. And the numerical aperture (NA) of our device shows an improve by a factor of 1.66. Also the voltage requirement is much lower with same NA. In addition, due to a smaller beam size of proposed design the crosstalk of our device is lower than that of the conventional double electrode LC lens about 43%. In conclusion, the 3D displays with proposed method not only smaller beam size and lower crosstalk, but lower operation voltage.
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