Q. What's the 3D Technology in Theaters?

  • Most common approach is to project both Left & Right imagessimultaneously on screen.
  • Each image is polarized in the opposite direction, eyeglass's lenses are plarized accordingly so that each eye sees the intended image.
  • 3D effect is realized in the viewers brain when it putstogether two images with slightly different perspectives.

Q. What are the Components of 3D in Theaters?

  • Projector that displays 2 different images on screen simultaneously (digital or film)
  • Ploarizing lens in front of projector
  • Metallized screen to preserve polarization
  • Polarized glasses for viewer

Q. Will 3D be available to the consumer via Flat Panel (FP) or Front Projector (FP)?

  • Both Flat Panel & Front Projector approaches will be available.

Q. What types of 3D technology will be available for Flat Panels?

2 distinct methods: Active vs Passive

  1. Active method
    • Frame sequential & Active shutter glasses
    • Display: Left & Right images shown sequentially at very high speed
    • Glasses: Active shutter glasses synchronize with screen so each eye sees intended image.
    • Display must communicate with glasses

  2. Passive method
    • Polarizing film built into the front of flat panel screen & Passive polarized glasses
    • Polarize odd/even lines in opposite way
    • Simple Polarized lense glasses

Q. What are the advantages & disadvantages of Active method?

  • Pro - Full HD resolution
  • Pro - Cost on display side is minimal
  • Con - Active shutter glasses

Q. What are the advantages & disadvantages of Passive method?

  • Pro - Inexpensive glasses
  • Con - Cost goes into display
  • Con - May compromise 2D picture quality?

Q. What are the advantages & disadvantages of flat panel technologies?

  • LCD Pro - High brightness
  • LCD Con - Limited viewing angle
  • Plasma Pro - Smooth motion
  • Plasma Con - Low brightness

Q. What types of 3D technology will be available for home Projectors?

2 methods: Theater approach vs flat panel approach

  1. Theater approach
    • 2 projector/engine & metal screen & polarized glasses
    • Display both Left & Right images simultaneously

  2. Flat panel approach
    • 1 projector & standard screen & active shutter glasses

    • Frame sequential display of Left & Right image at high rate

Q. What are the advantages & disadvantages of 1 vs 2 projectors/engines?

  • 1 Pro - Cost for 1 projector
  • 1 Con - Active shutter glasses
  • 2 Pro - Inexpensive glasses
  • 2 Con - Up to double the cost
  • 2 Con - Difficult to calibrate
  • 2 Con - Need Metallized screen (retrofit issue)

Q. What do I need for 3D at home?

  • 3D capable display
  • 3D capable source (3D BD player/ PS3 / cable box)
  • 3D capable AV receiver with 3D signle pass through
  • High Speed HDMI cables
  • 3D content (Blu-ray disc, PS3 game, broadcast from cable/satellite
  • Eventually 3D content via IP connection

Q. Do I need to purchase a new TV panel/projector to watch 3D content?

  • In most cases yes, a panel/projector will require a significant ammount of video processing 'horse power (to properly display 3D content).

  • Also, for an active 3D system, the TV panel/projector must transmit a signalto the active glasses.

Q. Do I need HDMI 1.4 cables to watch 3D?

  • No, any HDMI cable that can handle 10.2 Gbps (340MHz). HDMI 1.3 High Speed cable has sufficeint bandwith to support 3D content. The cable must be High Speed rated.

Q. Can a 3D display show 2D content?

  • Yes, display remote will have a button to switch from 2D to 3D.

Q. Will all 3D disks display OK on any 3D system?

  • Yes, manufactures have agreed on the required 3D standards. So any 3D source signal will display OK.

Q. Will a display from manufacturer X work with a blue ray player from manufacturer Y?

  • Yes, manufactures have agreed on required 3D standards.

It's interesting FAQ_3D_Video_Consumer_Electronics

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