You can see why manufacturers choose to go with a simpler term. A more appropriate name would be “LED-backlit LCD,” but that’s a mouthful. In general, if you see an LED screen for sale to consumers, it’s actually an LCD screen with an LED backlight. There are “true LED” displays that are made up exclusively of colored LEDs, but that’s not what you see in consumer electronics most often. Unfortunately, this has complicated the topic for consumers who understandably think that the LED TVs they see advertised at electronics stores are totally different from LCD TVs. This is where manufacturers have had to simplify terms to express a pretty complex idea. When it comes to digital displays, LEDs are also used as backlights for LCD screens. LEDs are everywhere - household light bulbs, flashlights, those electric Open/Closed signs in store windows, the string lights on your patio, the small colored indicators on your keyboard (like the one that lights up to tell you that you left the Caps Lock on) - if you see a little colored light on something, it’s probably an LED. Basically, it’s a very small electrical component that lights up a certain color when you pass electricity through it. Importantly, liquid crystals don’t produce any light on their own, so LCD panels need a separate light source, or backlight, to show images, but we’ll come back to that later. They’re much simpler, but they work on the same principle as your 4K TV and your computer monitor. The little display on your microwave, that calculator you still have from math class, even that old-school digital watch - all of these are LCD screens. While the topic of LCD screens has become more popular in recent decades thanks to the rise of affordable LCD televisions and computer monitors, this technology has been around longer than you might think, and you only need to look around your house to find countless everyday examples. Just remember that it’s the most common type of screen technology for electronics right now. Don’t worry, that’s about as technical as we’ll need to get. When it comes to liquid crystal displays (LCDs), there is a layer of this liquid crystal substance inside the screen that makes it possible to show complex images. Liquid crystals are substances that have the physical properties of both liquids and solid crystals. So, what are liquid crystals? Brace yourself for this, because we’ll need to get a bit into the weeds. In this article, we’ll define these acronyms, talk a little bit about how modern screens work, and hopefully give you a little more knowledge and confidence when it comes to buying a digital display. Not to mention, these acronyms have become shorthand for much more complicated concepts as well, which can make it even harder to know what you’re buying when looking for a display. This can be confusing, as you might see these terms used prominently in marketing or on packaging without any explanation as to what they mean. It’s time to proceed to the next step: Z-axis Calibration.Start shopping around for monitors, TVs, or digital signage and you’ll encounter two very similar acronyms right away - LED and LCD. This is to test if the LCD displays the same grid image as the touch screen, if yes, it means the LCD works fine.Īfter all 3 modes have been displayed correctly on your LCD screen, your LCD screen is functioning properly. The grid lines should fill the entire LCD screen. On the touch panel, click on ⚙️> System > Hardware Testing > LCD TEST > LCD GRID This ensures there are no light spots and that the LCD screen can cover up the light. The light on the LCD screen should be covered up completely. On the touch panel, click on ⚙️> System > Hardware Testing > LCD TEST > BLACKENED LCD SCREEN This ensures that the LCD screen lights up completely and that there are no black spots. The LCD screen should be lit up completely. On the touch panel, click on ⚙️> System > Hardware Testing > LCD TEST > LIGHT UP ENTIRE LCD SCREEN Make sure to test your LCD screen in the following order:ĭO NOT look directly at the UV light to prevent eye discomfort. We will guide you through the steps of performing an LCD test and how you can read it: This is to ensure that both the UV lights and the Mono-LCD screen are functioning properly. Before printing, you may need to check the status of your Sonic Mighty 8K's LCD screen.
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