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LG Announces "Super UHD" TV Lineup (digitaltrends.com)
An anonymous reader writes: LG Electronics will be showing off a new line of 4K Ultra-HD television sets at CES this week and a 98-inch 8K Super UHD giant. Digital Trends reports: "The UH9500 (screen sizes 55-86 inches) UH8500 (screen sizes 55-75 inches) and UH7700 (screen sizes 49-65 inches) share several traits in common. All will offer what LG is calling HDR Plus, which means all of the sets in this series can process and display High Dynamic Range content from a variety of sources, include LG's Color Prime tech for enhanced color brightness. These sets will also apply processing that aims to improve non-HDR content for an HDR-like experience."
Selling spyware as a feature, the sales department should be congratulated. No, the whole industry.
Fun fact -- OTA HDTV was for a long time one of the highest (technical) quality sources available. Fairly high-bit-rate MPEG2 can look VERY good, and generally doesn't suffer from the recompression artifacts of a cable or satellite provider working to maximize the number of channels rather than the quality of any particular channel. Yes, a good Blu-ray or stream can provide better quality now, but for a waiting-room situation, OTA HDTV is probably the best bet going.
Not that there will be anything to watch, but at least your daytime TV will only be crappy due to content.
DPI is a meaningless measure without viewing distance. Since 20/20 vision means 1 arc minute or 1/60th degree resolution, the maximum field of vision (FOV) the screen should cover is easy to calculate.
For 20/20 vision ("normal" = does not need correction):
1920 pixels * 1/60th degree = 32 degrees
3840 pixels * 1/60th degree = 64 degrees
7680 pixels * 1/60th degree = 128 degrees
If you have 20/20 vision then FullHD at 55" / 7 feet = 31.9 degrees is all you can see. That's a fairly normal couch distance, but 28" / 3.4 feet is much further away from a desktop screen than is normal. A UHD monitor at 28" / 1.7 feet = 61.8 degrees is plenty though.
For 20/16 vision (normal in young and healthy):
1920 pixels * 1/60th degree * 16/20 = 25.6 degrees
3840 pixels * 1/60th degree * 16/20 = 51.2 degrees
7680 pixels * 1/60th degree * 16/20 = 102.4 degrees
If you have 20/16 vision as about 1/3rd of the population does, then UHD at 79" / 6 feet = 51.1 degrees is the limit of your vision. For a monitor 28" / 2.1 feet is slightly on the far side, maybe get a 5K monitor.
For 20/12 vision (the sharp-eyed):
1920 pixels * 1/60th degree * 8/20 = 19.2 degrees
3840 pixels * 1/60th degree * 8/20 = 38.4 degrees
7680 pixels * 1/60th degree * 8/20 = 76.8 degrees
Most people will won't ever see this good in their life ever, rare but also not truly exceptional. With UHD then 65" / 7 feet = 37.3 degrees is their limit, for a monitor 28" / 3 feet is clearly too long. An 8K monitor would actually be useful.
For 20/8 vision (the very, very few):
1920 pixels * 1/60th degree * 12/20 = 12.8 degrees
3840 pixels * 1/60th degree * 12/20 = 25.6 degrees
7680 pixels * 1/60th degree * 12/20 = 51.2 degrees
This is near the true limit of the human eye, there are a few elite baseball players like this. Since they have twice the vision of 20/16s, 8K at 79" / 6 feet = 51.1 degrees is the limit of their vision. For a monitor probably around 10K.
That became a much longer post than I expected...
Live today, because you never know what tomorrow brings
... the first HD TV's came out in the late 90's...
I'm going to be nit-picky here and point you towards Wikipedia's article on HDTV.
These are systems dating back to the start of the Korean War pretty much, and are "high definition" resolutions. Regardless of how popular they were (or were not) they existed, and therefore display devices capable of using them also existed. You can discount the first two if you want because they were military applications or false-starters, but the Japanese system was definitely in the consumer market.