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1. • • A DCI 4K stream is compressed using JPEG2000, can have a bitrate of up to 250Mbps, and employs 12-bit 4:4:4 color depth. The next step up from HD is UHD, or Ultra High Definition. It's the official name for the display resolution of 1,920 by 1,080.
     www.extremetech.com/extreme/174221-no-tv-makers-4k-and-uhd-are-not-the-same-thing

     4K vs. UHD: What's the Difference? | Extremetech

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   What version of 4K is used in Ultra-HD?

   • The version used in Ultra-HD is 2.2. 4K is a new Ultra High Definition (UHD) video technology that delivers a higher quality picture when you're watching movies or TV shows. The term "4K" refers to the resolution of a screen, 3,840 pixels horizontaly and 2,160 pixels vertically.

   UHD 4K FAQ | 4K Media

   4kmedia.org/faq/

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   What is ultra high definition vs 4K?

   • Technically, "Ultra High Definition" is actually a derivation of the 4K digital cinema standard. However while your local multiplex shows images in native 4096 x 2160 4K resolution, the new Ultra HD consumer format has a slightly lower resolution of 3840 x 2160.

   What is 4K resolution? Our guide to Ultra HD viewing - TechRadar

   www.techradar.com/news/what-is-4k-resolution-ultra-hd

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   What does 4K mean?

   • The term "4K" is generic and refers to any resolution with a horizontal pixel count of approximately 4,000. : 2 Several different 4K resolutions have been standardized by various organizations. The terms "4K" and "Ultra HD" are used more widely in marketing than "2160p".

   4K resolution - Wikipedia

   en.wikipedia.org/wiki/4K_resolution

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   What is a 4K TV?

   • The TV tech term 4K describes an ultra high-definition screen resolution. You might also see this labelled as UHD, 4K or 4K UHD depending on which brand makes the TV. But they’re all talking about the same thing. Right now, 4K has overtaken both HD and full HD to become the most popular TV resolution of choice for all major TV brands.

   What is 4K resolution? Our guide to Ultra HD viewing - TechRadar

   www.techradar.com/news/what-is-4k-resolution-ultra-hd

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3. www.makeuseof.com › tag › whats-difference-4k-ultra-hdWhat's the Difference Between 4K and Ultra HD (UHD)? - MUO

   www.makeuseof.com › tag › whats-difference-4k-ultra-hd

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   2020年2月25日 · UHD-1 is often referred to as 4K UHD or just 4K. Some people occasionally refer to UHD-1 as 2160p. When you see any of these terms, they typically mean the same thing. When it comes to TVs, there is no difference between 4K and UHD. Note: There is also Full Ultra HD, sometimes called 8K, which refers to a resolution of 7620x4320.

   • 職業: Senior Author | Onboarding Manager

4. www.techradar.com › news › what-is-4k-resolution-ultra-hdWhat is 4K resolution? Our guide to Ultra HD viewing - TechRadar

   www.techradar.com › news › what-is-4k-resolution-ultra-hd

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   2022年1月4日 · The TV tech term 4K describes an ultra high-definition screen resolution. You might also see this labelled as UHD, 4K or 4K UHD depending on which brand makes the TV. But they’re all...

   • 作者: Nick Pino

5. 影片

   • 

     techradar.com

     What is 4K? The basics of Ultra HD explained

     2022年1月4日

   • 

     pcmag.com

     What Is 4K (Ultra HD)?

     2021年2月1日

   • 

     0:54

     digitaltrends.com

     What is 4K? Everything you need to know about 4K Ultra HD

     2023年11月27日

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6. en.wikipedia.org › wiki › 4K_resolution4K resolution - Wikipedia

   en.wikipedia.org › wiki › 4K_resolution

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   In October 2012, the Consumer Electronics Association (CEA) announced their definition of the term Ultra High-Definition (or Ultra HD) for use with marketing consumer display devices. CEA defines an Ultra HD product as a TV, monitor, or projector with the

7. www.extremetech.com › extreme › 174221-no-tv-makers-4k-and-uhd4K vs. UHD: What's the Difference? | Extremetech ...

   www.extremetech.com › extreme › 174221-no-tv-makers-4k-and-uhd

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   2024年2月10日 · The next step up from HD is UHD, or Ultra High Definition. It's the official name for the display resolution of 1,920 by 1,080. UHD quadruples that resolution to 3,840 by 2,160. It's not the...

8. www.digitaltrends.com › home-theater › everything-you-need-toWhat is 4K? Everything you need to know about 4K Ultra HD

   www.digitaltrends.com › home-theater › everything-you-need-to

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   2023年11月27日 · In a nutshell, 4K Ultra HD is the name assigned to a screen with a resolution that’s four times that of a Full HD (1080p) TV. That translates to 8 million pixels being crammed into the same ...

9. www.benq.com › technology › common-what-is-4k4K UHD是什麼？它跟Full HD差在哪？真4K與假4K又有什麼不一樣？ ...

   www.benq.com › technology › common-what-is-4k

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   2017年10月5日 · 所謂的4K UHD，就是指顯示器材或影像內容的水平解析度達到4000畫素（pixel）的水準，但與Full HD不同的是，4K UHD解析度在專業領域會有一些規格上的差異，存在許多水平像素×垂直像素的定義。 以家用顯示器來說，4K UHD的規格包含3840×2160與4096×2160兩種，但4K UHD經過這幾年的發展，市場現行主流的4K UHD顯示器，絕大多數都是以3840×2160解析度為主，只有極為少數產品是4096×2160解析度。

10. en.wikipedia.org › wiki › Ultra-high-definition_televisionUltra-high-definition television - Wikipedia

    en.wikipedia.org › wiki › Ultra-high-definition_television

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    Sony announced they would market their 4K products as 4K Ultra High-Definition (4K UHD). [70] On October 23, 2012, Ortus Technology Co., Ltd announced the development of the world's smallest 3840 × 2160 pixel LCD panel with a size of 9.6 in (24 cm) and a pixel density of 458 px/in. [71] [72] [73] The LCD panel is designed for medical equipment ...