| Real Life Information... on Topics related to Everyday Life - DIGITAL TV TRANSITION |
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| DIGITAL TELEVISION TRANSITION General Frequently Asked Questions |
When the aspect ratio of the television program and your television set
do not match, bars on the top and/or sides of the image may appear to
ensure that the image is not distorted.
In order to properly display 16:9 content on a 4:3 set, your digital
television or digital-to-analog converter box may place bars at the top
and bottom of the image – a process called “letterboxing.”
do not match, bars on the top and/or sides of the image may appear to
ensure that the image is not distorted.
In order to properly display 16:9 content on a 4:3 set, your digital
television or digital-to-analog converter box may place bars at the top
and bottom of the image – a process called “letterboxing.”
Why doesn’t the picture on my digital television fill up the entire screen?
Why do bars on the top and bottom or sides of the picture appear with
different programming?
Traditional analog TV has an aspect ratio of 4:3 (almost square). This
means that a TV screen is 4 inches wide for every 3 inches it is tall. Most
digital televisions have an aspect ratio of 16:9 (rectangular) and are
called “widescreen.” The 16:9 aspect ratio more closely approximates
the look of movies and the amount of programming that is being offered
in 16:9 is increasing.
Why do bars on the top and bottom or sides of the picture appear with
different programming?
Traditional analog TV has an aspect ratio of 4:3 (almost square). This
means that a TV screen is 4 inches wide for every 3 inches it is tall. Most
digital televisions have an aspect ratio of 16:9 (rectangular) and are
called “widescreen.” The 16:9 aspect ratio more closely approximates
the look of movies and the amount of programming that is being offered
in 16:9 is increasing.
Similarly, to properly display 4:3 content on a 16:9 television set, bars may be
placed on the sides of the screen – a process called “pillar boxing.”
Also, some programs are “letterboxed” or “pillar boxed” during broadcast. For
example, many commercials are produced in analog with a 4:3 aspect ratio,
but are broadcast with letterboxing for a “modern” look or to leave room for
text or subtitles. When such a commercial is aired during a widescreen (16:9)
program, it will also be pillar-boxed. This results in a 16:9 format broadcast
that already has bars above and below it. When such a broadcast is viewed on
a 16:9 set, it results in bars appearing above, below, and on the sides – a
result called a “postage stamp.”
Many digital-to-analog converter boxes and digital televisions allow you to
“zoom” into the image to eliminate the bars. This may result in part of the
image being cut off or “cropped.” Some digital-to-analog converter boxes and
digital televisions also provide the ability to alter the image to fit the screen,
either by “stretching” or “squeezing” the image. Please consult the owner’s
manual of your digital television or digital-to-analog converter box for details
on how to eliminate the bars through zooming, stretching or squeezing the
image on your screen.
placed on the sides of the screen – a process called “pillar boxing.”
Also, some programs are “letterboxed” or “pillar boxed” during broadcast. For
example, many commercials are produced in analog with a 4:3 aspect ratio,
but are broadcast with letterboxing for a “modern” look or to leave room for
text or subtitles. When such a commercial is aired during a widescreen (16:9)
program, it will also be pillar-boxed. This results in a 16:9 format broadcast
that already has bars above and below it. When such a broadcast is viewed on
a 16:9 set, it results in bars appearing above, below, and on the sides – a
result called a “postage stamp.”
Many digital-to-analog converter boxes and digital televisions allow you to
“zoom” into the image to eliminate the bars. This may result in part of the
image being cut off or “cropped.” Some digital-to-analog converter boxes and
digital televisions also provide the ability to alter the image to fit the screen,
either by “stretching” or “squeezing” the image. Please consult the owner’s
manual of your digital television or digital-to-analog converter box for details
on how to eliminate the bars through zooming, stretching or squeezing the
image on your screen.
Back to: Digital TV Transition General FAQs Overview
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