Hi, this is Wayne again with a topic “What is Contrast Ratio?”.
Have you been in the market for a new TV lately, if so, you’ve probably noticed that the TV manufacturers and big-box stores use a number of tricks to lure you in they mostly focus their advertising on the same stuff, high resolutions, huge screen sizes and rock-bottom prices? All designed to convince you to punch and elbow your way past, a bunch of strangers on Black Friday, like some sort of electronics piranha, but there’s a crucial, often ignored element, one that is arguably the biggest determinant of overall picture quality contrast ratio. But what the heck is that? Well, although it’s not something, that’s always easy to find. If you’re buying a TV or a monitor off the shelf at a brick-and-mortar store, you should have encountered contrast ratio at some point on a spec page if you’re shopping online. But what do those values? One thousand to one 1 million to one even mean? Well, you see contrast. Ratio is essentially the difference between the brightest white that a screen can produce and the darkest black, which is very important because having the correct brightness on different areas. On screen is critical for making dark areas, look sufficiently dark without losing detail and for optimal visibility in bright areas. Think of a shot of a city at night, a TV with good contrast, will clearly show you a dark night sky while making the detail of the city lights stand out.
If your screens contrast ratio is too low, the entire scene will be less detailed and more washed out with dull stars. On a charcoal backdrop, typically modern IPS displays, as well as better made TN panels, will offer contrast ratios in the neighborhood of a thousand to one meaning. The brightest pixel will be a thousand times brighter than the dimmest. If you opt for a usual VA type display.
You’Ll generally see better performance, at least by this particular metric, with contrast ratios between two and five thousand to one, but what about those spec sheets? You see that advertised insane contrast ratios of like ten million to one well. If you look closely you’ll see that these numbers indicate a dynamic contrast ratio, which is a number that a manufacturer claims a display can achieve with backlight trickery, so on lower-end sets, the entire backlight will be turned up or down depending on the brightness of the scene, While on high-end ones, this is done more granularly with certain parts of the scene being boosted or dimmed. These dimming techniques are quite useful and can result in better picture quality, but the experience definitely isn’t the same as having a panel that can achieve natively. An absurdly high contrast ratio like an OLED one, whose pixels individually emit their own light without any backlight allowing them to perform this dimming functionality on a per pixel level. They can even be turned off so long story short. Then, unless we’re talking about OLED, you should take those 10 million to one numbers with a huge grain of salt and for that matter, even ole Ed’s.
That might really have 10 million to 1 contrast ratios are sometimes advertised as having infinite contrast. That should really be undefined. If you don’t like divide by zero errors, you guys speaking of divide by zero and math errors. Do you find a counting complicated? Do you wish, as a small business owner or freelancer, that you could just spend your time doing your work and you could just like carry your accounting solution around in your pocket? Well, FreshBooks has you covered and at the link in the video description, you can try out fresh books for absolutely free.
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