LCD or Plasma with HDMI 1.3

Is HDMI a requirement to get actual HD content? (1080p, Trillions of colours and so forth)?

I was looking at the HDMI formats:
a brief history.

HDMI 1.1
Released May 2004.

- Supports DVD Audio.

HDMI 1.2
Released August 2005.

- Supports up to 8 channels of One Bit Audio, used on Super Audio CDs.
- Availability of HDMI Type A connector for PC sources.
- Ability for PC sources to use native RGB color-space while retaining the option to support the YCbCr CE color space.
- Requirement for HDMI 1.2 and later displays to support low-voltage sources.

HDMI 1.2a
Released December 2005.

- Fully specifies Consumer Electronic Control (CEC) features, command sets, and CEC compliance tests.

HDMI 1.3
Released 22 June 2006.

- Increases single-link bandwidth to 340 Mhz (10.2 Gbps)
- Supports 30-bit, 36-bit, and 48-bit (RGB or YCbCr) color depths or over one billion colors, up from 24-bit in previous versions.
- Supports xvYCC color standard.
- Incorporates automatic audio syncing (lip sync) capability.
- Supports output of Dolby TrueHD and DTS-HD Master Audio streams for external decoding by AV receivers. TrueHD and DTS-HD are lossless audio codec formats used on HD DVDs and Blu-ray Discs. If the disk player can decode these streams into uncompressed audio, then HDMI 1.3 is not necessary, as all versions of HDMI can transport uncompressed audio.
- Availability of a new mini connector for devices such as camcorders.


and i relised that New sets bost the capability to produce 4 Trillion colours, yet HDMI 1.3 only JUST came available.

are these Displays capable of receiving all this data via a better(more thorough then HDMI 1.1 or or 1.2a) source the an HDMI connection?

Can anyone explain this more clearly???