You will notice two differences from the original image. Here we see our example image (which is 250 pixels high by 400 pixels wide) resized for a 32×128 display matrix.Įxample image resized to 32 x 128 pixels. The larger the original image, the more pixels that need to be combined to fit onto the available LED matrix. In essence, you are combining many pixels into one, resulting in a loss of detail. The least desirable way to put an image or video on your display is to simply resize it. Starting example image at 250 x 400 pixels. They also apply equally to video as well as images. It is in color, but the following instructions also apply to red or amber displays. We will be using this example image that is currently 250 pixels high by 400 pixels wide.
Resizing (shrinking the image or video to fit on the display).When it comes to placing an image or video onto an LED display, there are three ways to make it fit: So how does someone take their own image or video and make it look good on their sign? The answer is to find an optimal way to change its size to fit the display.
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In comparison, high definition TV is 1080 pixels high and a 5 mega-pixel image is 1920 pixels high.Ĭlearly, this amount of detail cannot be replicated on an LED display. LEDs are typically presented longer rather than taller so that the user has the option to include text messages from left to right on the display.Ī typical LED display may be between 32 and 96 pixels in height. This is because the height is typically smaller than the width, and is therefore more of a deciding factor for display capabilities. For example, a 32×128 pixel display is 32 pixels high and 128 pixels wide, for a total of 4096 pixels.Ĭommonly, only display height in pixels is used for comparison purposes. This forms the pixel matrix, typically written as height by width. Pixels are arranged in rows that go across the length of the display, and columns that go up/down the height of the display. Text messages transmitted directly onto a sign are typically using pixels that are either on or off to make up each character in the message itself. The difference in light output is what creates a three dimensional image on the display itself. Each pixel is controlled as either on or off – and in some LED signs, each pixel can produce different levels of light output. The reason for this limitation has to do with the number of pixels, or points of light, that make up the display.
Despite this, all LEDs have limits when it comes to the amount of detail they can display. They are capable of showing text, images, animations and video visible from far away and under harsh outdoor conditions. LED signs are amazing pieces of technology.
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