1. Technology Futures 電機所碩一 R93921095 邱國權 2005/6/1

2. Outline Visual Displays Visual Displays Sharp Corporation's TFT 3D LCD Audio Displays Audio Displays Haptic Displays Haptic Displays

3. Visual Displays Stereoscopic visual display Stereoscopic visual display Autostereoscopic display Autostereoscopic display Specially designed lenticular screen Specially designed lenticular screen Eliminating the need for wearing special headgear Eliminating the need for wearing special headgear No limitation of user’s movement No limitation of user’s movement Real-time interactive stereoscopic wall-size display Real-time interactive stereoscopic wall-size display

4. 3D Display Products 3D display without the need for special glasses 3D display without the need for special glasses Switches between 2D and 3D display mode Switches between 2D and 3D display mode

5. Stereopsis Theory If two images were presented, one to each eye, whereby the perspective difference was the same as that normally viewed by each eye independently, then the brain would fuse these two images and interpret this as an image with visual depth. If two images were presented, one to each eye, whereby the perspective difference was the same as that normally viewed by each eye independently, then the brain would fuse these two images and interpret this as an image with visual depth.

6. Wheatstone’s mirror stereoscopic display

7. Original technology of 3D display Using a high refresh rate CRT monitor and 3D glasses Using a high refresh rate CRT monitor and 3D glasses Computer generates two different perspective images and sends each image to the CRT sequentially Computer generates two different perspective images and sends each image to the CRT sequentially The 'wrong' eye is blocked from seeing an image by glasses The 'wrong' eye is blocked from seeing an image by glasses

8. Sharp 3D display Two images are displayed concurrently Two images are displayed concurrently The display uses revolutionary switchable parallax barrier technology to ensure each eye only sees one of these images The display uses revolutionary switchable parallax barrier technology to ensure each eye only sees one of these images The parallax barrier is a series of vertical slots which are carefully designed to focus pixels in different directions The parallax barrier is a series of vertical slots which are carefully designed to focus pixels in different directions

12. Summary The Parallax Barrier is placed between the LCD and the backlight and can be switched on and off The Parallax Barrier is placed between the LCD and the backlight and can be switched on and off Without glasses and objects appear to leap out of the screen Without glasses and objects appear to leap out of the screen Need appropriate software Need appropriate software

13. Audio Displays Present sound regardless of which the display is placed Present sound regardless of which the display is placed Tracked headphones Tracked headphones Conjunction with projection VR system Conjunction with projection VR system Transparent speakers Transparent speakers

14. Other techniques Sonic rendering Sonic rendering Physically based sound-modeling algorithms Physically based sound-modeling algorithms Echo cancellation Echo cancellation For large-screen immersive spaces For large-screen immersive spaces

15. Haptic Displays Tactile sensation Tactile sensation Allow the Participant to sense different surface textures or object edges Allow the Participant to sense different surface textures or object edges Array of small pins Array of small pins Array of miniature electrodes Array of miniature electrodes Temperature display Temperature display Minimal effort in developing but could create a compelling experience Minimal effort in developing but could create a compelling experience

16. Miniature Electrodes