為了得到更自然的立體影像，近年來已吸引許多專家及廠商投入立體顯示器的發展。傳統的偏振式投影式立體顯示器無法達到裸視效果，而裸眼式視差遮罩立體顯示器則無法應用在前投影式大尺寸顯示器上。本篇論文將結合這兩種立體顯示器的優點，提出一種全新的裸眼式前投影立體顯示器。
本論文提出的結構是利用可投出偏振光的投影機，柵狀的偏光片，以及四分之一波片和氧化銀投影幕，所製成的大尺寸前投影式立體裸眼式顯示器。而柵狀偏光片和四分之一波片的整體功能就和一般視差遮罩無異，可分離左右眼的影像分別之觀察者的左右眼中。經由模擬結果可發現，此顯示器的直視鬼影干擾可低於５％，硬體實驗結果也顯示出其直視鬼影干擾也可達到２０％以下。此種顯示器的優點包括製程容易，低鬼影干擾，可製成大尺寸(大於５０吋)，高亮度以及不需要配戴立體眼鏡。此顯示器可應用於電影院，醫學檢驗，娛樂及商業用途。

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. The traditional projection type polarized stereoscopic displays need to wear glasses, and the parallax barrier auto-stereoscopic display can not make in direct projection. Consequently we proposed a new kind of projection type auto-stereoscopic display combining the advantages of both projection type’s polarized stereoscopic display and parallax barrier auto-stereoscopic display.
A new kind of large size directly projection type auto-stereoscopic 3D display was designed, which includes a polarization projector, parallax pattern polarizer, quarter wave plate and AgO screen. Furthermore, the function of pattern polarizer is parallax barrier, which could separate the left and right eye images for observers. The crosstalk is less than 5% in simulation for direct vision. The experiment result shows that the crosstalk is less than 20% for direct viewing. The advantages of this structure is easy to fabricate, low crosstalk, large panel size(>50-inch), high brightness and dose not need to wear glasses, it can be used in large size movie theater screen, medical examine, entertainments, and commercial application .

Table of Contents
Abstract(Chinese) i
Abstract(English) ii
Acknowledgment iv
Figure Caption vii
Chapter 1 1
1.1 Preface 1
1.2 Principle of 3D vision 2
1.3 Introduction to 3D display 4
1.3.1 3D display using stereoscopic system 5
1.3.2 Auto-stereoscopic display 6
1.3.3 Multi-view display 6
1.4 Prior Arts on projection 3D displays 7
1.5 Motivation and Objective 9
1.6 Organization 10
Chapter 2 11
2.1 Traditional parallax barrier uses in projection type 11
2.2 The proposed structure 13
2.2.1 Equipments- Pattern polarizer and quarter wave plate 13
2.2.2 Proposed structure device 16
2.3 Principle of proposed structure 17
2.4 Light path of the proposed structure 18
2.5 Proposed structure design formula 20
2.6 Multi-view display design formula 21
Chapter 3 23
3.1 Simulation model setup 23
3.2 Simulation in light distribution 24
3.3 Improved in viewing window and crosstalk issues – open aperture optimization 25
3.4 The multi-view system 29
3.5 Summary 31
Chapter 4 32
4.1 Experimental equipment 32
4.2 Experimental method 35
4.3 Experimental results 37
4.4 Discussion 39
Chapter 5 40
5.1 Step one: Improved in reflected light issue 40
5.1.1 Principles of the improved method 41
5.1.2 Experimental Results of improved method 42
5.1.3 Light Distribution Measurement 43
5.2 Step two: Open aperture optimized 44
5.3 The crosstalk issues 46
5.4 Step three: Improvement by DCR (digital crosstalk reduce) method 50
5.5 Experimental pictures 50
5.6 Summary 53
Chapter 6 56
6.1 Conclusions 56
6.2 Future works 57
References 59

References
[1] J. A. Castellano, Handbook of Display Technology, Academic Press, San Diego (1992).
[2] N. Holliman, 3D Display Systems, Department of Computer Science, University of Durham, 3, Feb. (2005).
[3] B. Lane, Proc. SPIE, 0367 (1982).
[4] Jae Hwan Oh, Stereoscopic TFT-LCD with Wire Grid Polarizer and Retarder.SID’08 p.444
[5] Sung-Min Jung, Late-News Paper: A Novel Polarizer Glasses-type 3D Displays with an Active Retarder.
[6] L. Lipton et al., Proc. SPIE, 4660, p.229 (2002).
[7] D. Takemori, K. Kanatami, S. Kishimoto, S. Yoshi, and H. Kanayama, Proc. SID’95, p.55 (1995).
[8] C. van Berkel and J. A. Clarke, Proc. SPIE, 3012, p.179 (1997).
[9] Wallen Mphepö, Zero Barrier, Zero Crosstalk Auto-stereoscopic 3D Display System for Cinema & Home Theater Multi-user Settings. SID’08 p.615
[10] Yu-Cheng Lai, Direct View and Projection Functions Hybrid Switchable Mobile Display, Master Thesis NCTU July 2009
[11] DLP technology, from the Texas Instruments http://www.dlp.com/tech/what.aspx.
[12] 3LCD technology, from the 3LCD: http://www.3lcd.com/.
[13] LCOS technology, from the Himax: http://www.himax.com.tw/en/product/lcos.asp.
[14] Quarter wave plate, from the http://www.freepatentsonline.com/EP1022800.html
[15] David F. McAllister, Display Technology: Stereo & 3D Display Technologies
[16] Ronald Kaptein, Effect of Crosstalk in Multi-View Auto-stereoscopic 3D Displays on Perceived Image Quality, SID 07 DIGEST 1220
[17] Ming-Der Chou, A Novel 2-D/3-D Arbitrarily Switchable Auto-stereoscopic Display, SID 09 DIGEST p.1407
[18] Dr Nick Holliman, 3D Display Systems
[19] Qiong-Hua Wang, An Auto-stereoscopic 3D Projector Based on Two Parallax Barriers, SID’09 p.619
[20] TOPCON TECHNOHOUSE CORPORATION, SR-UL1R, http://www.topcon-techno.co.jp/eng/products/110383.html
[21] Ian J. Hodgkinson, Birefringent thin films and polarizing elements
[22] Yu-Cheng Chang, Crosstalk Suppression by Image Processing in 3-D Displays, SID’10 p.10.2
[23] Michio Oikawa, Sample Applications Suitable for Features of Integral Videography, SID 08 DIGEST 748
[24] Hiroki Kaneko, Desktop auto-stereoscopic display using compact LED projector, Proc. of SPIE Vol. 5006
[25] N. A. Dodgson, MULTI–VIEW AUTO-STEREOSCOPIC 3D DISPLAY, IBC 99
[26] Chi-Lin Wu, High Transmittance LC Pixel Design for Multi-View 3D Mobile Display, Master Thesis NCTU July 2008
[27] To-Chiang Shen, Auto-stereoscopic 2D/3D Switching Display with Multi-Electrically Driven Cylindrical Liquid Crystal Lens (MeDLC), Master Thesis NCTU July 2009
[28] Yu-Mioun Chu, Design and Fabrication of Dual Directional Backlight System for 3D Mobile Display, Master Thesis NCTU July 2005
[29] B. Ardashnikov, A Mobile Projection Engine with a Multi-layer Reflective Polarizer Bases PBS, SID08 DIGEST, pp.1089-1091, 2008.
[30] C. Huang, Process, characterizations, and system applications of color-filter liquid-crystal-on-silicon microdisplays,” J Soc Info Display, Vol. 14, pp.499-508, 2006.
[31] N. Shibano, Development of CyberDome-a scalable Immersive Multi Projection Display with Hemi-Spherical Screen, IDW ’04 1431