1. Speaker: Yi-Ching Huang 黃怡菁 Advisor: Prof. Han-Ping D. Shieh( 謝漢萍教授 ) Prof. Yi-Pai Huang( 黃乙白教授 ) Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu, Taiwan Mar.16 2009 High Resolution Auto-stereoscopic 3D Display With Multi-Electrically Driven Cylindrical Liquid Crystal Lens (MeDLC) Master thesis proposal

2. 2 Advanced Display Optics Lab Outline  Introduction  Motivation & Objective  Active scanning film -- Multi-Electrically Driven Liquid Crystal Lens (MeDLC)  Future Work

3. 3 Advanced Display Optics Lab Outline  Introduction  Motivation & Objective  Active scanning film -- Multi-Electrically Driven Liquid Crystal Lens (MeDLC)  Future Work

4. 4 Advanced Display Optics Lab 3D Display Binocular Parallax 3D display technology Stereoscopic (with glasses) Shutter type Polarization type Anaglyph type Pulfrich type Head Mounted Display Auto-stereoscopic (without glasses) Holographic type Volumetric type 2D multiplexed type Time- multiplexed Spatial- multiplexed

5. 5 Advanced Display Optics Lab Stereoscopic Display Polarization typeShutter type Anaglyph typeHead Mounted Display Drawback ： It’s not convenient to wear glasses.

6. 6 Advanced Display Optics Lab 3D Display 3D display technology Stereoscopic (with glasses) Shutter type Polarization type Anaglyph type Pulfrich type Head Mounted Display Auto-stereoscopic (without glasses) Holographic type Volumetric type 2D multiplexed type Time- multiplexed Spatial- multiplexed

7. 7 Advanced Display Optics Lab Auto-Stereoscopic Display Time-multiplexed Drawback ： Limited viewing angle

8. 8 Advanced Display Optics Lab Auto-Stereoscopic Display Spatial-multiplexed Barrier Lens Array Slanted Lenses Drawbacks ： Low resolution Limited viewing angle (~11°)

9. 9 Advanced Display Optics Lab Concept 4 10 16 3 9 15 2 8 14 1 7 13 5 11 17 6 12 18 Active scanning film Organic LED panel Auto-stereoscopic display (Time-multiplexed) Fast Response OLED ： Offer images for different views Active scanning film ： Project images to different views

10. 10 Advanced Display Optics Lab Outline  Introduction  Motivation & Objective  Active scanning film -- Multi-Electrically Driven Liquid Crystal Lens (MeDLC)  Future Work

11. 11 Advanced Display Optics Lab Motivation and Objective  Motivation Auto-stereoscopic with Full resolution images and Wide viewing angle approach 3D display.  Objective 1. Active scanning film 2. 32ms scanning 3. 9 views, 11° viewing angle 4 10 16 3 9 15 2 8 14 1 7 13 5 11 17 6 12 18

12. 12 Advanced Display Optics Lab Outline  Introduction  Motivation & Objective  Active scanning film -- Multi-Electrically Driven Liquid Crystal Lens (MeDLC)  Future Work

13. 13 Advanced Display Optics Lab Active Scanning Film Active scanning film unit - Multi-Electrically Driven Liquid Crystal Lens (MeDLC) V op

14. 14 Advanced Display Optics Lab Active Scanning Film Glass ITO Electrode LC layer Projected light Pixel 10 16 9 15 2 14 7 13 11 17 12 18 Advantages ： Full resolution Wide viewing angle

15. 15 Advanced Display Optics Lab MeDLC Prototype Spacer Bottom glass Top glass Side view Top view electrode Experimental setup

16. 16 Advanced Display Optics Lab Outline  Introduction  Motivation & Objective  Active scanning film -- Multi-Electrically Driven Liquid Crystal Lens (MeDLC)  Future Work

17. 17 Advanced Display Optics Lab Future Work Equivalent lens Short term -- Active scanning V 1 V 2 V 3 V 4 MUX V out MeDLC FPGA

18. 18 Advanced Display Optics Lab Future Work Long term -- Reduce response time Formula 1 : : rotational viscosity : elastic constant : cell gap : threshold voltage : bias voltage: applied voltage Formula 2 : Δn: Refractive index difference between the center and the edge of the cell. Δn ↑ Cell gap (d) ↓ Response time(τ) ↓

19. 19 Advanced Display Optics Lab mosseyes@ms91.url.com.tw

20. 20 Advanced Display Optics Lab Auto-Stereoscopic Display Volumetric type Holographic type

21. 21 Advanced Display Optics Lab Formulas: where Δn is a parabolic form (Δn: Refractive index difference between the center and the edge of the cell. )  Δn r Ideal Curve

22. 22 Advanced Display Optics Lab Low Focusing Ability Whole Aperture-size High Freedom of Adjustment  Double-Electrode Unit  Multi-Electrode Unit Multi-Electrode is closer to the ideal curve