Digital Photo Frames – A Guide to Screen Resolution & Quality
Let’s face it: at least at one point, each of us have stood around the local electronics store and gazed longingly at their selection of digital photo frames. They’re just exciting to look at! The ability to showcase all the pictures from your latest holiday, get-together or even old family photos is quite spectacular. But why is it that some of the digital photo frames look better than others? Why do some of the digital photo frames appear so much more vibrant and colourful, or bright and clear? The reason for this disparity is that some digital photo frames offer a higher screen resolution and quality than others.
When talking about digital photo frames, the screen resolution refers to the number of pixels that the screen can display. A pixel is a tiny square of light that can display one colour at a time. When large numbers of these pixels are combined, they can form a picture. If you look very closely at a computer screen, or even at digital photo frames, you can see the outlines of these thousands of colourful squares. The more pixels a screen can display, the higher the resolution it is said to have. When digital photo frames have a very high screen resolution, the image looks very sharp and vivid. When a screen has a low resolution, the image will look blocky, or “pixelated” and unclear.
Most digital photo frames today come with a screen resolution between 480 x 234 pixels and 1280 x 1024 pixels. Usually, larger screen size means a higher pixel resolution, and a sharper overall image. Digital photo frames with higher resolutions than normal for their size can look especially clear and vibrant. Screens that are smaller than 6 inches should have at least a 480 x 234 pixel resolution, and 6 to 11 inch digital photo frames should have a screen resolution of about 800 x 480 pixels. 12 to 17 inch digital photo frames should have a resolution of 1024 x 768 pixels, and anything larger than 17 inches should have a resolution of at least 1280 x 1024 pixels.
Another factor that determines the overall appearance of digital photo frames is the contrast ratio. The higher the contrast ratio, the darker dark colours will be, and the lighter the light colours will be. This means that a screen with a high contrast ratio will appear more colourful and life-like. Digital photo frames with low contrast ratios will look dull and washed out. An average contrast ratio for digital photo frames is about 250:1, with high quality models having contrast ratios as high as 500:1.
High quality digital photo frames have both high contrast ratios and high screen resolutions, and will stand out among groups of frames for their crisp, vibrant picture.
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