Analysis of High-resistance Liquid Crystal Lens Array for 2D/3D Switchable Light Field Displays

• Main Authors: Deng, Chih-Kai, 鄧至凱
• Other Authors: Kuo, Cheng-Huang
• Format: Others
• Language: en_US
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/ub3526

碩士 === 國立交通大學 === 照明與能源光電研究所 === 107 === 　　Nowadays, many researchers dedicate to developing 3D display technology to produce more natural images from displays. Also, glass-free 3D displays are developed and regarded as the next-generation 3D display technology due to the convenience of no glass-wearing necessary. However, there remain some issues of the traditional multi-view display. The most critical one is the visual fatigue caused by the accommodation-convergence conflict after continuously watching the multi-view display. To solve this issue, we design a one-dimensional light field structure. The lens pitch is set as 150 μm and the lens orientation is slanted -54.8 degrees to provide 12-view images on display panel. 　　In this thesis, we utilize the lenticular high-resistance (Hi-R) LC lens array for 2D/3D switchable light field display with compact structure, easy driven method and low driving voltage. In order to obtain an ideal lens with high optical performance, the sheet resistance of Hi-R layer and the ratio of lens aperture to cell gap have been considered. Both would affect the electric field distribution connected to the LC layer. For LC lens array of lens aperture 148 µm and cell gap 15 µm, we apply the proper Hi-R sheet resistance 10 to the power of 8 Ω/sq and then the focusing ability can be maintained superior as the focal length reaches the experimental required value. With analysis of these characteristics of lenticular Hi-R LC lens array, a high image performance 2D/3D switchable light field display is achieved.