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  • - My new TV has HDR

  • What does that mean?

  • So if you've been shopping for a television recently

  • particularly a 4k television

  • you've probably seen the letters HDR.

  • So what do those mean?

  • HDR stands for High Dynamic Range.

  • Ultimately it means trying to represent colors

  • in a more realistic, lifelike way.

  • Something that traditional televisions

  • weren't always the best at.

  • With cameras and photography HDR is really referring to

  • trying to get a camera to behave the way our eyes do.

  • Our irises can expand and contract as light levels change.

  • But cameras can't do that.

  • You set a settings and you take a picture.

  • You can change the setting and take another picture

  • but you're kinda stuck with what you get.

  • HDR technology takes a series of pictures

  • at different luminosity levels

  • and then combines them all into a mashup image.

  • Now with displays like this

  • we're really looking at something called Nits.

  • Nits is a unit of measurement.

  • It's a measurement of luminosity

  • which in itself is the brightness level

  • from a source of light.

  • So, when you are shopping for a TV

  • you are literally nit picking.

  • Anyway, luminosity relates to two different concepts.

  • Contrast, which is the difference between

  • your brightest whites and your darkest black colors

  • on a television screen.

  • And color representation.

  • The greater the number, the greater the range.

  • The better color representation you'll get

  • the more vibrant the images are.

  • In fact people have said the jump from 1080 resolution

  • to a 4K resolution wasn't really that noticeable

  • until HDR technology started to get rolled into it.

  • There are a couple of things you need to know

  • before you go out and buy your 4K HDR set.

  • One is that content is somewhat limited.

  • You can get certain Amazon shows that have HDR content

  • and Sony is rolling out some content in HDR.

  • But it's not everywhere and it's not magically going to turn

  • your old television shows into spectacular displays.

  • Another thing to remember is that

  • there are a lot of companies working on HDR right now.

  • So there's some competing standards at play here.

  • But this is the future of high resolution.

  • I'm sorry, ultra high resolution displays.

  • So when you are looking for that next television

  • look for those three letters and then tell somebody

  • hey, I know what that means.

  • Guys, you've got to check back to

  • now.howstuffworks.com

  • every single day because we are going to have

  • cool stories about the latest in tech, science, pop culture

  • and just the weird stuff going on in the world.

  • So I wanna see you there.

  • now.howstuffworks.com.

- My new TV has HDR

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HDR電視到底是什麼?| HowStuffWorks NOW (What exactly is an HDR TV? | HowStuffWorks NOW)

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    alex 發佈於 2021 年 01 月 14 日
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