1. Speaker: Tsung-Wei Pai ( 白宗緯 ) Advisors: 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 Oct. 06 2008 Three Dimensional Interaction Display

2. 2 Advanced Display Optics Lab Outline  Introduction  3D Interaction Display  Theoretical Model  Experimental Results  Conclusion  Future work

3. 3 Advanced Display Optics Lab Motivation  3D display  3D Interaction panel  3D Display will be the next generation display system.  3D Interaction panel should also be an important interaction interface between user and 3D display. pc 3D Display 3D touch panel

4. 4 Advanced Display Optics Lab 3D Interaction Display Required an extra sensing component Restricted to the area far from the panel Objective: Develop an embedded optical 3D sensing system in the 3D TFT-LCD panel. 3D panel

5. 5 Advanced Display Optics Lab Novel 3D Interaction Display 1 11 2 2 2 Barrier view 1view 2 LCD 21 2121 Z=0 Z=d R-sensor image L-sensor imageR-sensor imageL-sensor image  With Farther “Z” distance, larger Disparity.  According to disparity, the “Z” can be determined. B/W barrier L/R sensor source Disparity

6. 6 Advanced Display Optics Lab Principle of XYZ_sensing 1 2 3 4 5 6 ………….. Z X Y Sensor Barrier (Y)

7. 7 Advanced Display Optics Lab Flow chart Concept Theoretical Simulation Concept Theoretical Simulation Experiment Concept Theoretical h n Light Panel with barrier Object

8. 8 Advanced Display Optics Lab Theoretical Model h d Height_Disparity_relation Disparity (Pixels) Height(mm) Panel size: 2.83inches Range: 0~140mm Interval: 5mm Barrier Glass Sensors β

9. 9 Advanced Display Optics Lab Simulated Results_XYZ Detection Disparity (Z) (X) The results proved the correctness of proposed concept by LightTools.

10. 10 Advanced Display Optics Lab Simulated Results_Z sensing range Panel size: 2.83inches Range: 0~140mm Interval: 10mm Interacting Distance: 0~120mm About 120mm Height_Disparity_relation Disparity Height(mm)  Simulated Theoretical

11. 11 Advanced Display Optics Lab Experimental setup Panel with barrier (capture image) Object Light Panel size: 2.8’’ Pixel resolution: 320x240 Sensor resolution: 640x480 Oscilloscope (analyze image)

12. 12 Advanced Display Optics Lab Experimental Results_Z-Relation Experimental Disparity Disparity (Z) Simulated Disparity Panel size: 2.83inches Range: 0~60mm Interval: 10mm About 40mm Height_Disparity_relation Disparity (Pixels) Height(mm) Interacting Distance: 0~40mm

13. 13 Advanced Display Optics Lab Conclusion  A novel 3D Interaction panel with embedded optical sensors was demonstrated and patent has been submitted.  The experimental results proved that the farther Z-distance, the larger disparity.  The interacting range is 4cm with a 2.8” panel and applicable for mobile LCDs.

14. 14 Advanced Display Optics Lab Future work Static 3D Interaction Dynamic 3D Interaction

15. 15 Advanced Display Optics Lab Thanks for your kind attention

16. 16 Advanced Display Optics Lab Future works_2D Optical touch Issue: function error Solution: Disparity or not Function error Z=0 Z=d L Sensor & Pixel Black Matrix Glass Sensor & Pixel Glass Black Matrix L LLRR L LLRR

17. 17 Advanced Display Optics Lab Experimental Results_XY-Detection X_axis Y_axis The X/Y position can also be determined

18. 18 Advanced Display Optics Lab Simulated Results_3D image Quality L R 450mm Crosstalk↓ Aperture Ratio ↓