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Table of contents
1080i / 1080p
The 1080i (1080 interlaced) and 1080p (1080 progressive) HDTV standards both comprise a resolution of 1,080 vertical pixels and 1,920 horizontal pixels. (1,920 x 1,080).
480i / 480p
The 480i (480 interlaced) and 480p (480 progressive) TV standards both comprise a resolution of 480 vertical pixels and 640 horizontal pixels. (640 x 480)
720i / 720p
The 720i (720 interlaced) and 720p (720 progressive) HDTV standards both comprise a resolution of 720 vertical pixels and 1,280 horizontal pixels. (1,280 x 720)
ANSI (American National Standards Institute) lumen is the industry standard for the measurement of projector brightness. A higher brightness specification means that the projector is able to show a higher level of image brightness for clearer and sharper images and color performance.
In scientific terms, contrast is the ratio between the light intensity of the brightest and the darkest points in an image. What it does in practice is to allow a screen to show both light and dark details as well as possible. A higher contrast performance often allows darker details to show better and therefore improves picture quality.
DLP (Digital Light Processing) projection technology utilizes chips containing thousands of micro mirrors to provide rich color contrast and images of superior clarity. DLP projectors are able to work for extended periods of time without overheating and DLP projector lamps are typically capable of longer service lives than that of LCD projectors.
HDTV (High-Definition television) is the latest standard in television technology, the HDTV format offers extremely high picture resolutions in the 16:9 widescreen aspect ratio for superb image quality.
The resolution of an image represents the number of pixels, calculated by multiplying the number of vertical pixel columns with the number of horizontal pixel rows displayed in the projected image. Projectors offering higher resolutions can display more information on screen and higher quality images.
The throw distance refers to the distance between the projector and the projection screen or surface.