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Projector terms explained
Understand throw, brightness, lens shift, keystone, screens and projection technology.
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3LCD
3LCD is a projector technology that uses separate LCD panels for red, green, and blue light, then combines them to create the projected image.
Learn more4K enhancement
4K enhancement is a projector feature that uses image processing and/or pixel shifting to present a more detailed-looking image. It does not by itself mean the projector has a native 4K imaging panel.
Learn moreA
ambient light
Ambient light is the light already present in a room, such as daylight or lamps. For projectors, it can affect how clearly the image appears, especially in dark scenes.
Learn moreANSI lumens
ANSI lumens measure a projector’s light output using a standardized test method. A higher figure generally means a brighter image, but it is not a rating of overall picture quality.
Learn moreaspect ratio
Aspect ratio is the proportional shape of a projector’s image, written as width:height. Common projector formats include 16:9, 16:10, and 4:3.
Learn moreC
ceiling mount
A ceiling mount is hardware used to attach a projector to a ceiling instead of placing it on a table or shelf. Its fit and installation requirements depend on the projector and mounting system.
Learn morecolor brightness
Color brightness describes how much light a projector produces when displaying colored images. It is distinct from white brightness and helps indicate how vivid colors may appear in a given viewing environment.
Learn morecontrast ratio
Contrast ratio compares a projector’s brightest white with its darkest black. A higher stated ratio can indicate greater tonal separation, but figures are not always measured or reported the same way.
Learn moreD
digital zoom
Digital zoom changes a projector’s displayed image size through electronic image processing rather than by changing the lens’s focal length. It may involve scaling, cropping, or both.
Learn moreDLP
DLP, or Digital Light Processing, is a projection technology that uses microscopic mirrors to control light and create an image. It identifies how the projector forms the picture, not its overall quality.
Learn moreH
HDCP
HDCP is a copy-protection system that helps secure digital video and audio between a source, such as a player or computer, and a projector. Compatibility depends on the HDCP support and version across the signal path.
Learn moreHDMI ARC
HDMI ARC (Audio Return Channel) sends audio between a projector and a compatible soundbar or AV receiver over an HDMI connection, reducing the need for a separate audio cable.
Learn moreHDR
HDR (High Dynamic Range) is a picture standard or processing capability that can represent a wider range of brightness and color than standard dynamic range. On a projector, it depends on both the source and the projector’s implementation.
Learn moreI
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lamp life
Lamp life is the manufacturer’s estimate of how long a projector’s lamp may operate before it needs replacement or reaches a specified brightness threshold.
Learn morelamp projector
A lamp projector uses a traditional lamp-based light source to create its projected image, rather than an LED or laser source. The label describes the light-source type, not overall picture quality.
Learn morelaser projector
A laser projector uses laser light as its projection light source instead of a traditional lamp. The label identifies the light-source type, not the projector’s overall image quality.
Learn moreLCD
LCD (liquid crystal display) is a projector imaging technology that uses liquid crystal panels to shape light into an image. The label identifies the display method, not the projector’s overall quality.
Learn morelens shift
Lens shift moves the projected image horizontally or vertically without moving the projector. It can make installation easier when the projector cannot be centered precisely with the screen.
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screen gain
Screen gain describes how much light a projection screen reflects toward viewers compared with a standard reference surface. Higher gain can look brighter from the center, while lower gain usually spreads light more evenly.
Learn moreshort throw
A short throw projector can create a relatively large image from a shorter distance than a standard-throw projector. The exact placement depends on its throw ratio, lens, and required image size.
Learn moreT
throw distance
Throw distance is the space between a projector’s lens and the screen or projection surface. It helps indicate where the projector can be placed to create an image of a particular size.
Learn morethrow ratio
Throw ratio is the distance from a projector’s lens to the screen divided by the projected image width. It helps you judge whether a projector can fit your room and screen.
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