What's that in millimetres?
06 August 2010 at 10:12
It is commonly thought that pixels on a computer screen are a measurement such as inches or centimetres.
As much as this would be useful, it is not the case. You can change your screen settings so that it shows a different number of pixels across the width and height of the screen. This is also known as changing the resolution.
The screen above has 1280 pixels running across the top of the screen and 1024 pixels running down the side of the screen. The blue box on the screen is 240 pixels across and 240 pixels down.
By changing resolution, we can make everything on screen appear bigger. The screen above is the same screen, but it now has 1024 pixels running across the top and 768 pixels running down the side. The blue box is the same size, at 240 pixels square, but it displays at a different size on screen. The pixel dimensions have remained the same but the physical dimensions have changed.
It is important when designing for the screen that you take into account that pixels can appear different sizes on different screens, so cannot be measured with physical measurements.
Posted in General Web Advice | No Comments
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