Pillarbox
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The pillarbox effect occurs in
Some older
Pillarboxing is the vertical equivalent of letterboxing and is sometimes called reverse letterboxing. Its name is derived from its resemblance to pillar box-style mailboxes used in the UK and the Commonwealth of Nations. The four-direction equivalent is called windowboxing, caused when programming is both letterboxed and pillarboxed.
In order to use the entire screen area of a widescreen display (which is already significantly less than a fullscreen of equal diagonal measurement), and to prevent a reverse
Because certain
Stylized pillarboxing on television
Some
The use of graphics assures viewers that they are watching the HD version of a channel, instead of their thinking they are watching the SD version, along with filling the entire screen with a video image rather than the regular black bars. This also tells widescreen
the video).A limited number of local stations also apply custom pillarboxes, but most have removed them with both the advent of all-HD schedules and customer complaints about erroneous technical information in
Some channels have a similar format called "enhanced HD", in which extra informative graphics and text is shown on the side, such as expanded stock quotes, charts, and graphs on
Some Japanese anime switched from SD to HD during their run. Sometimes a flashback to a scene produced in SD had to be shown. For instance, in Naruto, the image of Naruto and Sasuke filled in the blank gaps as one of the SD-era flashbacks is being shown.[citation needed]
See also
- 14:9 aspect ratio
- 16:9 aspect ratio
- Aspect ratio (image)
- Index of articles related to motion pictures
- Letterboxing (filming)
- Stretch-o-Vision
- Vertical video
- Widescreen
- Windowbox (filmmaking)