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3 D Display Technology

3 D Display Technology. TYWu. 3 D Display Technology. Seeing in Depth Not only X and Y axis, but also Z Stereoscopic Image Technologies Eyeglass Eyeglassless. Spatial Division. Head Mounted Displays (HMD) http://www.i-glassesstore.com/. Polarization Division. Polarization

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3 D Display Technology

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  1. 3D Display Technology TYWu

  2. 3D Display Technology • Seeing in Depth • Not only X and Y axis, but also Z • Stereoscopic Image • Technologies • Eyeglass • Eyeglassless

  3. Spatial Division • Head Mounted Displays (HMD) • http://www.i-glassesstore.com/

  4. Polarization Division • Polarization • Linear polarization

  5. Polarization Division • Polarization LCD • JVC Passive Xpol system • Linear polarization • http://www.youtube.com/watch?v=rbx3K1xBxVU&feature=related

  6. Polarization Division • Polarization (Linear) LCD • iZ3D

  7. Polarization Division • Polarization (Linear) LCD • http://viml.nchc.org.tw/blog/paper_info.php?CLASS_ID=1&SUB_ID=1&PAPER_ID=145

  8. Polarization Division • Linear polarization • Any effort to tilt the head sideways would result in the polarization failing, ghosting, and both eyes seeing both images. • Circular polarization has alleviated this problem.

  9. Polarization Division • Polarization • Circularly Polarization • If light is composed of two plane waves of equal amplitude by differing in phase by 90°

  10. Polarization Division • Polarization • Circularly Polarization

  11. Polarization Division • Polarization • Circularly Polarization

  12. Polarization Division • Polarization LCD • Images are displayed from top to bottom with alternative lines assigned to left and right eyes. • Resolution Penalty

  13. Polarization Division • Polarization LCD • Advantage • Full-color display • Flicker-free • Polarizing glasses (passive) are cheap • Youtube • http://www.youtube.com/watch?v=rZgNpzqIIaw&NR=1 • http://www.youtube.com/watch?v=Sdv0J57_U5g

  14. Polarization Division • Two Projectors

  15. Wavelength Division • Standard LCD • Red/Blue method • Japan’s BS11 satellite channel • Side-by-Side • Method adopted by Arisawa • Line-by-Line • Advantage • Glasses (passive) are very cheap

  16. Wavelength Division • Illustration 1

  17. Wavelength Division • Illustration 2 • Input: Side by Side

  18. Wavelength Division • Standard LCD • Example • http://www.youtube.com/watch?v=dHG2IWV1caE&feature=related

  19. Wavelength Division • Anaglyph techniques • Color separation technique • Use two complementary colors to display the left and right views respectively • Use red and green (blue) glasses to observe it • Adv.: simplicity and economical

  20. Wavelength Division • Anaglyph Technique

  21. Wavelength Division • Anaglyph Technique

  22. Wavelength Division • 如果您沒有紅藍立體眼鏡，歡迎您附回郵索取。回郵請寄 : • 台北縣三重市光復路一段88-11號8樓馬路科技顧問股份有限公司 辛金星先生收 • http://www.iz3d.com.tw/news_into.php?id=MTc3

  23. Time Division • 120 Hz LCD • Glasses are very expensive • Shutter Glasses (Active Glasses)

  24. Time Division • 120 Hz LCD/Projector • Glasses • NVIDIA "Geoforce" Graphics card + Projector itself needs to be NVIDIA certified • The glasses work by communicating with an external USB controller/IR (Infrared) emitter.

  25. Time Division • 120 Hz LCD • 3D Wired Shutter Glasses (Cheap) • http://www.youtube.com/watch?v=mM9NnN9Cebc

  26. Time Division • DLP 3D Ready Projector • http://www.dlp.com/projector/dlp-innovations/dlp-link.aspx

  27. Time Division • 利用DMD (Digital Micromirror Device)反應速度高達16~25μs (40~62.5 KHz)的特性，在左右視角畫面之間插入2ms的灰階訊號(Gray Scale Signals)畫面，快門式眼鏡內建Sensor偵側畫面灰階訊號藉以切換左右眼 • DLP-Link 優點：(1)無需同步訊號發射器； (2)投影機端無附加硬體成本，業者導入速度快

  28. Autostereoscopic Display (Eyeglassless) • Without Glasses • Philips 42" 3DWOW

  29. Eyeglassless • Parallax Barrier • Lenticular Lenslets

  30. Eyeglassless • Techniques • http://www.mrl.nyu.edu/~perlin/demos/autostereo.html#autoshutter

  31. Troubles • 人眼雖對焦在3D銀幕上，但凝視不同距離的3D影像內容，兩眼內聚夾角會改變，違反對焦與內聚同步改變的自然現象。 • 經訓練能適應這種不自然的觀看環境，但跟2D影像相比，兩眼內聚夾角如隨3D內容不斷改變，容易使控制眼球的肌肉疲勞。  • 立體視覺就像色盲一樣，不是人人都能感受得到，約有百分之四人沒有立體視覺，一成五的人立體視覺異常，這些人都不適合觀看3D影像。

  32. Focus Distance Focus Distance Screen Natural Environment 3D Video Troubles • Illustration

  33. Tools • Stphmkre • http://stereo.jpn.org/eng/stphmkr/ • File/Open Left/Right Images… • File/Open Stereo Image… • Stereo/ColorAnaglyph • Etc.

  34. Tools • Image (side by side)

  35. Tools • Result

  36. Tools • 3D Maker • Filter/3D Glasses • File/Open Picture • Set X and Y Offsets • Mark the area by mouse • Convert

  37. Tools • Illustration

  38. Tools • 3D Video Player • Stereoscopic Player • http://www.iz3d.com.tw/support_1.php

  39. References • http://www.iz3d.com.tw/ • http://viml.nchc.org.tw/blog/paper_info.php?CLASS_ID=1&SUB_ID=1&PAPER_ID=145 • http://www.nvidia.com/object/product_GeForce_3D_VisionBundle_us.html • http://viml.nchc.org.tw/blog/paper_info.php?CLASS_ID=1&SUB_ID=1&PAPER_ID=142 • http://andrew.csie.ncyu.edu.tw/pdf3/050504.pdf • http://www.fpd.edu.tw/entry/content!newsView.htm?id=302 • http://www.taifook.com/data/taiwan/pdf/2010031654022_02_new.pdf • http://www.3d-forums.com/autostereoscopic-displays-t1.html

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