HDMI TV, whether derived from compressed or uncompressed sources, is basically a video and audio interface which displays images and transmits sound via the conversion of electronic data. In particular, the video images are made up of tiny points, called pixels. The HDMI data can be uncompressed or compressed.
However, understand that all HDMI TV displays or presentations are technically already uncompressed data. The data may have started as compressed sources of the ultimate uncompressed video information presented on the screen for viewing, but by the time it reaches the eye, it is always uncompressed. Said another way, and at the risk of being over redundant, whether the data is coming from an compressed source or not, like a DVD or a cable transmission, when it finally appears, as pixels, on the HDMI TV screen, it is always uncompressed.
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So, is uncompressed HDMI TV or compressed HDMI TV better? Without being stodgy, and going into the explanation that it is always uncompressed as a final production to the eye, we say uncompressed. Uncompressed from start to finish. Why? Because, as we have discussed, though the display on an HDMI TV is always uncompressed by the time it reaches your eyes, the data going to the HDMI TV through cable, DVD, or other sources may be compressed at its origin, and in short, it takes time to uncompress data. You want to eliminate any bottlenecks throughout your HDMI system, which means if you are using uncompressed data throughout your system, you will have the fewest hurdles to achieving the best HDMI images possible. What is compressed HDMI data must become uncompressed HDMI data, and this takes work and time.
What does this mean? It takes time to uncompress HDMI TV source data, if it is found in any part of your HDMI system, starting from the beginning? Yes indeed. It means that if the hardware you are using has to work really hard to uncompress the data ultimately going to your HDMI TV display, your images may appear choppy or lack fluidity (this goes for audio, or sound, as well). Simply put, delivering the uncompressed data to HDMI TV from compressed data sources may take so much time that the data, in the form of quickly changing pixels, are not delivered fast enough to allow the final images on your screen to move as fast, or as fluidly, as they really should be delivered.
