Resolution refers to the number of pixels that make up an image. A pixel is the single point that emits light. When many of these are working together they will create the impression of an overall image. To see this yourself look very closely at your computer monitor.
There are two ways that resolution is defined:
Total number of pixels - this is the total number of pixels a video screen can show and has no relationship to the screensize. For example a device may be labelled as "1080p HD". This means that it has 1080 rows of pixels and 1920 columns. This could be a small computer monitor or a large-format projector.
Pixel density - how many pixels are in a given area OR the distance between the pixels.
Generally the higher the resolution of a video system the better. More pixels means a more realistic image and a better viewing experience.
However, we have a lot of clients who ask for 1080p HD, which we will provide, but often the client will find that the content is not of a high enough quality. Any video system is only as good as its weakest link. So if we are providing a 1080p HD video solution and someone provides a standard DVD, or powerpoint in standard WXGA (a common computer resolution), the images viewed will only be as good as the system used and a lot of money has been wasted on cutting-edge technology.
So if your client requests HD video, make sure that all people providing content are aware of the required quality to maintain this. We would be happy to draft an email for you to send to all those involved.
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