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Abstract
英国留学生光学研究论文 We report our studies of vertical aligned mode on color filter liquid-crystal-on-silicon microdisplay. Three-dimensional optical analyses were performed to minimize fringing field effect in small color pixels. The simulation results were compared with experimental data and also the results of twisted nomadic mode.

Introduction
We have developed a color filter liquid-crystal-on-silicon (CFLCOS) micro display that integrated color filters on silicon. In our previous works, we have presented process, characterization and optical modeling of this breed of CF-LCOS micro displays entwisted nomadic (TN) mode [1, 2]. We used either rubbed or photo-aligned method [3] for these micro displays, and they worked well for near-to-eye or mini-projector which had light illumination below 8 million lox. However, the display performance started to degrade when the light illumination exceed15 million lox. The color filter can still resist strong light illumination. But the rubbed or photo-aligned layer was suffered from strong light illumination, especially the ultra-violet part of the light, and the contrast and color saturation of the display was accordingly degraded.
In this paper, we report our studies of vertical aligned (VA) modern the CF-LCOS micro displays. The use of inorganic silicon oxide as the alignment layer could improve light stability of themicrodisplays. We therefore applied this technology to CF-LCOSmicrodisplays, and at the same time, configured the microdisplaysto VA mode for better contrast [4]. Three-dimensional optical analyses were performed to analyze and optimize these VA CFLCOSmicrodisplays, and also provided guidelines for experiments.

2. Process of VA CF-LCOS Micro displays
The assembly process of the VA mode is very similar to that of the conventionally TN mode, except the alignment layer. Though there are special polyimide layers that can be spun and coated on the silicon or glass substrate as the alignment layer for the Vamoose [5, 6]. Their prettily angles were limited and they had light stability problem due to the polyimide base alignment layer. Therefore, at present, the majority of the LCOS micro displays ova mode used the silicon oxide as the alignment layer [7-11].In the process of the CF-LCOS micro display of the VA mode, the silicon oxide was also adopted as the alignment layer. The color filter silicon substrate was prepared by the same process as reported in our previous works [1]. The color filter array was again 0.75μm for all three colors. Then, a thin layer of silicon oxide was sputtered on the silicon substrate as the alignment layer. Thereafter, a CF-LCOS micro display of VA mode was assembled with a cell gap of 3μm. And a LC mixture, MLC-6608 (ne=1.5578, no=1.4748 and Δε= – 4.2) from Merck, was used for the assembly of the micro display.

7. References
[1] H. C. Huang, B. L. Zhang, H. S. Kwok, P. W. Cheng, and Y. C. Chen, Soc. for Info. Disp. Sump. Digest, 880 (2005).
[2] B. L. Zhang, H. S. Kwok, and H. C. Huang, J. of Appl. Phys., 98, 123103 (2005).
[3] B. L. Zhang, K. K. Li, V. G. Chagrined H. S. Kwok, and H. C. Huang, Jon. J. Appl. Phys., 44, 3983 (2005).
[4] S. Shimizu, Y. Ochi, A. Nakano, and M. Bone, Soc. for Info. Disp. Sump. Digest, 72 (2004).
[5] J. Kim, S. Kim, K. Park, and T. Kim, Soc. for Info. Disp. Sump. Digest, 806 (2001).本论文由英语论文网提供整理，提供论文代写，英语论文代写，代写论文，代写英语论文，代写留学生论文，代写英文论文，留学生论文代写相关核心关键词搜索。