1080p
















1080p HDTV




1080解析標章


1080p（也称作全高清，英语：Full HD）是一種影片顯示格式。字母p意為逐行掃描（progressive scan）[1][2]，有别于1080i的隔行掃描（interlaced scan）。數字1080則表示垂直方向有1080條水平掃描線。通常1080p的畫面解析度為1920×1080。


幀率通常為60Hz，可標示在p後面，如1080p30，意思是30Hz[3]。常見的幀率還有24、25、30。並非HDMI就一定有1080p的輸出，畫面必須要能支援1920×1080才能算是1080p輸出，只要水平掃描線超過1080條就能稱之為1080p，水平像素點並沒有嚴格的規範，Full HD才是規範垂直與水平掃描像素的標準，1080p僅規範垂直像素點（等同水平掃描線）。




目录






  • 1 播映標準


    • 1.1 ATSC


    • 1.2 DVB




  • 2 可用性


    • 2.1 广播电视


    • 2.2 藍光電影


    • 2.3 網路內容


    • 2.4 電視與投影機


    • 2.5 電玩




  • 3 注釋


  • 4 外部連結





播映標準



ATSC


在美國，依照最原始的ATSC標準，HDTV可支援1080p的影像，但幀率僅限於23.98、24、25、29.97以及30（也就是1080p24、1080p25和 1080p30）。



DVB


在歐洲，1080p25的訊號已被納入DVB suite的播放標準，至於1080p50可預見未來也會成為標準[4]，雖然這必須有更強大的頻寬以及編解碼器。



可用性



广播电视


在美國，截止到2013年1月1080p的播映還不存在；目前主要的網路是以720p60或1080i60的MPEG-2編碼為主。但是卫星电视服务已经使用H.264/MPEG-4 AVC编码的1080p/24-30标准给付费点播服务的客户提供电影（需要通过卫星或宽带事先下载）。



藍光電影


目前Blu-ray Disc 都可以支援1080p HD的電影內容。


曾經，東芝（TOSHIBA）和微軟一同為XBOX360開發的HD-DVD也可以輸出到1080P，但是由於後來停產所以宣告放棄這個格式。



網路內容


目前有些網路可以支援1080p的格式。例子包括有Apple QuickTime Trailers的QuickTime HD 1080p格式，微軟的WMV HD Content Showcase提供有1080p clips，另外YouTube已支援1080p的影片。



電視與投影機


液晶電視已開始支援1080p，還要同時備有支援1080p輸出的HDMI端子，電漿電視目前技術已可達1080P，且價格與液晶電視相差不大。顯示輸出設備要符合1080p高畫質規格，其解析度一定要達到1920x1080，否則只能稱為“擬1080p（1080p fit）”。


液晶電視要看1080p畫質影片，在傳統電視台是少有的，目前可以從數位電視收看到1080p節目，或是透過藍光光碟播放。再不然就是透過HDMI port來轉接1080p的投影機或攝影機。



電玩


一些著名的電玩平台，像是Sony的PlayStation 3以及微軟的Xbox 360（2007年6月以後生產）都可以透過HDMI ports（分別是HDMI 1.3a 和 HDMI 1.2）產生1080p。



注釋





  1. ^ afterdawn.com - 1080i


  2. ^ CNET - Glossary - 1080i[失效連結]


  3. ^ afterdawn.com - 1080p


  4. ^ EBU. EBU R115-2005: FUTURE HIGH DEFINITION TELEVISION SYSTEMS (PDF). EBU. May 2005 [2009-05-24]. （原始内容存档 (PDF)于2009-05-27）.  Technical recommendation




外部連結




  • 1080p and the Acuity of Human Vision Audioholics Home Theater Magazine. April 2, 2007.


  • High Definition 1080p TV: Why You Should Be Concerned. Secrets of Home Theater and High Fidelity. February 28, 2007.


  • The Facts and Fiction of 1080p. April 17, 2006.


  • High Definition (HD) Image Formats for Television Production (EBU technical publication). December 2004.

  • 1080p LCD HDTV Reviews





















































  • 查

  • 论

  • 编


顯示解析度

命名










用途例子 解析度（行） 螢幕更新頻率（Hz）
隔行扫描（場率） 逐行扫描（幀率）
低；MP@LL






LDTV, VCD
 240; 288（SIF）  
24, 30; 25
標準；MP@ML













SDTV, SVCD, DVD, DV
 480（NTSC, PAL-M） 60 24, 30
576（PAL, SECAM） 50 25
增強型





EDTV 480; 576  
60; 50
高；MP@HL













HDTV, HD DVD, BD, HDV
 720   24, 30, 60; 25, 50
1080 50, 60 24, 30; 25
超高





>UHDTV
 >2160, 4320 >50,60 60, 120



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