3D%20

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3D LCD
Post Pc Computing - 2001
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Basic Structure

• Stacked clear LCDs
• Image is accepted in 3Dby slicing the original
  picture

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Main Applications

• Medical use - Ultrasound imaging , etc.
• Geographical usage GPS map displays
• Games

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Other 3D technologies (I)

• Stereoscopic systems - such as 3D cinema(special
  glasses are needed)

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Other 3D technologies (II)

• Micro lens array over an LCD (Philips)

3D-LCD cross section
3D-LCD pixel projection
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Stacked LCD advantages

• More than one person at a given moment
• Almost unlimited viewing angles
• Ease of use (no glasses needed)
• No limited distance of viewing

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Potential Disadvantages

• Low horizontal resolution caused by the structure
  of multiple layers
• Back light necessary

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Technology Status

• Clear LCDs
• Processing unit capable of handling multiple
  screens
• Back light
• 3D picture computation methods and tools

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Predicted Difficulties in Development (I)

• LCD alignment in stack1. Polarizing filter
  alignment

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Predicted Difficulties in Development (II)

• LCD alignment in stack2. Color filters
  alignment (for color displays)

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Predicted Difficulties in Development (III)

• Heat distribution at least 50 of the light is
  absorbed in the display

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Power Consumption
Size Power Consumption for a single LCD
2 3.9 55mW 92mW
6.5 10 0.8W 1.52W
SHARP off the shelf LCDs

• Option - Save power by refreshing the screen only
  when needed.

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Price Estimate Market Demand
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Price Estimate (II)

• 15 LCD monitor
• August 1999 under 1100
• By December 2001 under 500
• Suppose a 10 layer 3D-LCD approx. 5000

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Next Steps

• Build a simple BW prototype, and study it
• Study the needs of a human eye for 3D vision1.
  Depth resolution2. Moving objects refresh rate
  in 3D3. Layer structure (overlapping images)
• Proceed with a color prototype

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There is only one problem

• The 3D-LCD is physically impossible!!!