From the course: CompTIA A+ (220-901) Cert Prep: 4 Displays and Printers

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How monitors work

How monitors work

- If you want to understand how monitors work, we've got to take it down to the very base level to the most core piece of your monitor, the pixel. This is a pixel. Now mine's actually you could walk through it, but in the real world this is actually made from liquid crystal display or LCDs. Now a single pixel on an LCD is actually composed of three pieces. Each one of these pieces is called an element. Now the reason we use three pieces is because we need colors. So what I'm gonna do here, it's not gonna be a very pretty pixel but it'll work. There we go. So what I've got here is a pixel that's broken up into three distinct pieces of LCD. You see LCDs have a really cool feature. With an LCD, if you give it electricity, you can see through it. But if you turn the electricity off, you can't see through a part of the LCD pixel. So we can take advantage of LCD technology to make a pixel. So what I'm gonna do is I'm going to take an LCD panel and I'm gonna put it over red, green, and blue…

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