Technology Futures

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Technology Futures

• ?????
• R93921095 ???
• 2005/6/1

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Outline

• Visual Displays
• Sharp Corporation's TFT 3D LCD
• Audio Displays
• Haptic Displays

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Visual Displays

• Stereoscopic visual display
• Autostereoscopic display
• Specially designed lenticular screen
• Eliminating the need for wearing special headgear
• No limitation of users movement
• Real-time interactive stereoscopic wall-size
  display

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3D Display Products

• 3D display without the need for special glasses
• Switches between 2D and 3D display mode

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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.

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Wheatstones mirror stereoscopic display
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Original technology of 3D display

• Using a high refresh rate CRT monitor and 3D
  glasses
• 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

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Sharp 3D display

• Two images are displayed concurrently
• 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

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Summary

• 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
• Need appropriate software

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Audio Displays

• Present sound regardless of which the display is
  placed
• Tracked headphones
• Conjunction with projection VR system
• Transparent speakers

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Other techniques

• Sonic rendering
• Physically based sound-modeling algorithms
• Echo cancellation
• For large-screen immersive spaces

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Haptic Displays

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

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Miniature Electrodes
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