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Ask Slashdot: Why Don't HDR TVs Have sRGB Or AdobeRGB Ratings?
dryriver writes: As anyone who buys professional computer monitors knows, the dynamic range of the display device you are looking at can be expressed quite usefully in terms of percentage sRGB coverage and percentage AdobeRGB coverage. The higher the percentage for each, the better and wider the dynamic range of the screen panel you are getting. People who work with professional video and photographs typically aim for a display that has 100 percent sRGB coverage and at least 70 to 80 percent AdobeRGB coverage. Laptop review site Notebookcheck for example uses professional optical testing equipment to check whether the advertised sRGB and AdobeRGB percentages and brightness in nits for any laptop display panel hold up in real life.
This being the case, why do quote-unquote "High Dynamic Range" capable TVs -- which seem to be mostly 10 bits per channel to begin with -- not have an sRGB or AdobeRGB rating quoted anywhere in their technical specs? Why don't professional TV reviewers use optical testing equipment that's readily available to measure the real world dynamic range of HDR or non-HDR TVs objectively, in hard numbers? Why do they simply say "the blacks on this TV were deep and pleasing, and the lighter tones were..." when this can be expressed better and more objectively in measured numbers or percentages? Do they think consumers are too unsophisticated to understand a simple number like "this OLED TV achieves a fairly average 66 percent AdobeRGB coverage?"
This being the case, why do quote-unquote "High Dynamic Range" capable TVs -- which seem to be mostly 10 bits per channel to begin with -- not have an sRGB or AdobeRGB rating quoted anywhere in their technical specs? Why don't professional TV reviewers use optical testing equipment that's readily available to measure the real world dynamic range of HDR or non-HDR TVs objectively, in hard numbers? Why do they simply say "the blacks on this TV were deep and pleasing, and the lighter tones were..." when this can be expressed better and more objectively in measured numbers or percentages? Do they think consumers are too unsophisticated to understand a simple number like "this OLED TV achieves a fairly average 66 percent AdobeRGB coverage?"
Firstly, quote-on-quote is just wrong (points for hyphenation, though). It's said 'quote-unquote' and is the spoken way of indicating that the phrase that follows would probably have quotes around it in written form, to indicate the phrase "so-called". So many people use air quotes in conversation that it's probably no surprise the author is unfamiliar with the correct spelling. This leads me to the next obvious thing which is that the piece is written. The quotes are actually used in the text around the part that is 'quote-unquoted', so there is no need for that phrase at all.
Was this dictated to Siri or something?
When they came for the communists, I said "He's next door. Take him away. Goddam commies."
Someone I know took a 4-year degree in computer science without ever touching a terminal. Holey cards, line printers, and batch processing all of the way. Imagine all of that time and having no concept of interactive software.
Bruce Perens.