This article lists

computer monitor A computer monitor is an output device that displays information in pictorial or textual form. A discrete monitor comprises a electronic visual display, visual display, support electronics, power supply, Housing (engineering), housing, electri ...

, television, digital film, and other graphics display resolutions that are in common use. Most of them use certain preferred numbers.

Computer graphics

;

Pixel aspect ratio A pixel aspect ratio (PAR) is a mathematical ratio that describes how the width of a pixel in a digital image compares to the height of that pixel. Most digital imaging systems display an image as a grid of tiny, square pixels. However, som ...

(PAR): The horizontal to vertical ratio of each pixel. ; Storage aspect ratio (SAR): The horizontal to vertical ratio of solely the number of pixels in each direction.LCD panels' resolutions are often quoted in terms of raw subpixels, misnamed "pixels" in manufacturer's specifications. Each real pixel includes one subpixel for each of three colors, so calling subpixels "pixels" inflates the claimed resolution by a factor of three. This bit of marketing obfuscation is calculated as horizontal resolution × vertical resolution × 3. For example: 640 × 480 VGA is subpixels, or pixels, 800 × 600 SVGA is subpixels, or pixels, and 1024 × 768 XGA is subpixels, but only full-color pixels. ;

Display aspect ratio The display aspect ratio (DAR) is the Aspect ratio (image), aspect ratio of a display device and so the proportional relationship between the display size, physical width and the height of the display. It is expressed as two numbers separated by a ...

(DAR): The combination (which occurs by multiplication) of both the pixel aspect ratio and storage aspect ratio giving the aspect ratio as experienced by the viewer.

Television and media

For television, the display aspect ratio (DAR) is shown, not the storage aspect ratio (SAR); analog television does not have well-defined pixels, while several digital television standards have non-square pixels.

Analog systems

Digital standards

Many of these resolutions are also used for video files that are not broadcast. These may also use other aspect ratios by cropping otherwise black bars at the top and bottom which result from cinema aspect ratios greater than , such as 1.85 or 2.35 through 2.40 (dubbed "Cinemascope", "" etc.), while the standard horizontal resolution, e.g. 1920 pixels, is usually kept. The vertical resolution is usually a multiple of 8 or 16 pixels due to most video codecs processing pixels on such sized blocks. A widescreen FHD video can be for a ratio or for roughly , for instance.

Films

The below distinguish SAR (aspect ratio of pixel dimensions), DAR (aspect ratio of displayed image dimensions), and the corresponding PAR (aspect ratio of individual pixels), though it currently contains some errors (inconsistencies), as flagged.

Video conferencing

CCTV

960H is a resolution used in analog

CCTV Closed-circuit television (CCTV), also known as video surveillance, is the use of closed-circuit television cameras to transmit a signal to a specific place on a limited set of monitors. It differs from broadcast television in that the signa ...

equipment. 960H represents the number of horizontal

pixels In digital imaging, a pixel (abbreviated px), pel, or picture element is the smallest addressable element in a raster image, or the smallest addressable element in a dot matrix display device. In most digital display devices, pixels are the sma ...

in a video signal transmitted from a camera or received by a DVR (Digital Video Recorder). The resolution of 960H depends on whether the equipment is PAL or NTSC based: 960H represents (PAL) or (NTSC) pixels. 960H represents an increase in pixels of some 30% over standard D1 resolution, which is pixels (PAL), or pixels (NTSC). The increased resolution over D1 comes as a result of a longer horizontal scan. The difference is that whilst D1 has a 4:3 aspect ratio 960H has a 16:9 widescreen aspect ratio. The extra pixels are used to form the increased area to the sides of the D1 image. The pixel density of 960H is identical to standard D1 resolution so it does not give any improvement in image quality, merely a wider aspect ratio. Alternative analog video transport technologies carrying higher resolutions than 960H include HD-TVI, HDCVI, and AHD.

Notes

References

External links

Interactive Visualization : Screen Resolutions

Resolutions for Common Aspect Ratios
{{DEFAULTSORT:Common Resolutions Resolutions Display resolutions