HDMI 1.4a and DisplayPort now support transmission of Stereo 3D frames and offer ‘plug and play’ support for Stereo3D via communication of device capabilities and standard Stereo 3D transmission formats. A key point about these transmission approaches is that the matching-up of appropriate glasses (including synchronization of active shutter glasses, where appropriate) is driven by the displays supporting the standards, rather than directly by the GPU or system generating Stereo 3D content. This will further simplify Stereo 3D solutions by taking out the requirement of an understanding by the user of exactly which glasses to use with a given display type. We already see this with the availability of stereo glasses (active and passive) from the vendors of consumer TV sets, all of which support the HDMI 1.4a standard.
One point of note, however, is that the current HDMI infrastructure, including the cables in use and most devices today, supports limited bandwidth. This means that 120Hz Stereo 3D can be achieved only up to 720p resolution. In order to support 1080p resolutions, the frame rate is limited to 48Hz, or 24Hz Stereo 3D. This refresh rate is suitable for film content playback (e.g. Blu-Ray 3D), the bandwidth required for 120Hz stereo (devices today support 48Hz stereo – corresponding to 24Hz Stereo for standard movie playback). However, because of this limitation you would perhaps not want to use a screen (including LCD TV's) with HDMI 1.4a for 3D gaming since you would be limited to 720p resolution maximum at 120Hz. Instead if you want full 1080p support for 3D gaming you would need to consider a 120Hz capable desktop monitor with a suitable interface which will carry the higher bandwidth.
DisplayPort (particularly v1.2), with its significantly higher bandwidth does support 120Hz Stereo 3D, and displays supporting Stereo 3D over DisplayPort are now available. This is AMD's preferred method of connectivity for their HD3D enabled displays.
On other desktop displays, including those supporting NVIDIA's 3D vision, Dual-link DVI is used to allow the support of content up to 1920 x 1080 @ 120Hz although this is not standardised. This is fine for connection of PC graphics cards to drive 3D content, but of course is of no use for connecting external devices to the display. You would need to think about the availability of DisplayPort of HDMI 1.4a if you want to view 3D content from a non-PC device.
HDMI 1.4a and DisplayPort now support transmission of Stereo 3D frames and offer ‘plug and play’ support for Stereo3D via communication of device capabilities and standard Stereo 3D transmission formats. A key point about these transmission approaches is that the matching-up of appropriate glasses (including synchronization of active shutter glasses, where appropriate) is driven by the displays supporting the standards, rather than directly by the GPU or system generating Stereo 3D content. This will further simplify Stereo 3D solutions by taking out the requirement of an understanding by the user of exactly which glasses to use with a given display type. We already see this with the availability of stereo glasses (active and passive) from the vendors of consumer TV sets, all of which support the HDMI 1.4a standard.
One point of note, however, is that the current HDMI infrastructure, including the cables in use and most devices today, supports limited bandwidth. This means that 120Hz Stereo 3D can be achieved only up to 720p resolution. In order to support 1080p resolutions, the frame rate is limited to 48Hz, or 24Hz Stereo 3D. This refresh rate is suitable for film content playback (e.g. Blu-Ray 3D), the bandwidth required for 120Hz stereo (devices today support 48Hz stereo – corresponding to 24Hz Stereo for standard movie playback). However, because of this limitation you would perhaps not want to use a screen (including LCD TV's) with HDMI 1.4a for 3D gaming since you would be limited to 720p resolution maximum at 120Hz. Instead if you want full 1080p support for 3D gaming you would need to consider a 120Hz capable desktop monitor with a suitable interface which will carry the higher bandwidth.
DisplayPort (particularly v1.2), with its significantly higher bandwidth does support 120Hz Stereo 3D, and displays supporting Stereo 3D over DisplayPort are now available. This is AMD's preferred method of connectivity for their HD3D enabled displays.
On other desktop displays, including those supporting NVIDIA's 3D vision, Dual-link DVI is used to allow the support of content up to 1920 x 1080 @ 120Hz although this is not standardised. This is fine for connection of PC graphics cards to drive 3D content, but of course is of no use for connecting external devices to the display. You would need to think about the availability of DisplayPort of HDMI 1.4a if you want to view 3D content from a non-PC device.
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