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Character Height It is also important to know that at least seven rows of diodes (the individual lights) are required to make one text character. For multiple lines of text, it requires an eighth line as a separator. This means that for each line of text there needs to be eight rows of pixels, and that those eight rows together measure the required character height. In other words, if you need three lines of ten inch text characters, you need to have 24 rows of 36 mm pitch pixels to get the proper character height. Typically 1 inch of LED is sufficient for 30 feet of viewing distance. Of course, you can always use a higher resolution display and combine lines to make bigger text letters. |
