0.91-inch 128x32 I2C OLED Display - Blue - oled display i2c

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ANSI/ ASME Screw Thread Size Chart. All units are in inches. Screw. Size ... 2-56. 2A. 0.0860 0.0854 0.0813 0.0744 0.0738 0.0717. 0.0635. 2-56. 3A. 0.0860 ...

What's the "organic" part? The specific electroluminescent materials used in OLED displays are organic compounds, which means they contain carbon plus some other ingredients. Each color requires a different organic compound (though these aren't necessarily the colors you see on the TV -- more on that later).

Being one of the oldest and traditionally cheapest panels to manufacture, TN panels have the worst color reproduction of all, followed by VA showing slight improvements, and then IPS and OLED panels easily leading the pack. IPS panels were initially targeted toward professionals who required incredibly accurate displays for color grading, but with advancements in other areas, they quickly became ideal for gamers as well.

OLEDdisplay

Response time across different panel types has generally been reduced to the point where you won't get a bad experience even with a budget gaming monitor though, provided it's a relatively modern model.

Coming to OLEDs, this isn't an issue for them at all, as you mostly get anywhere from 165° to 180° viewing angles, which is similar or sometimes even better than IPS models. Despite the excellent viewing angles of IPS, backlight bleeding is a very real problem. It is the dirty gray screen effect called IPS glow that you see on IPS panels in dark scenes, more pronounced in dim lighting conditions. VA and TN panels don't suffer from this to a great extent, and OLED panels don't exhibit this phenomenon at all.

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IPS monitors aren't able to block the backlight enough to produce decent blacks, and suffer from mediocre contrast ratios of around 1000:1. Quality VA panels perform much better in this department, becoming an ideal option for gaming as well as media consumption. Lastly, TN panels generally perform the worst here. In summary, it's hard to beat OLED options when it comes to the best HDR monitors.

You may have heard OLED discussed when it comes to mobile phone displays. The top-of-the-line models from Apple , Samsung, Google and others, use OLED screens. This is similar, though not exactly the same, as the OLED tech found in TVs.

As a gamer, you're probably targeting a decently high refresh rate, 1440p or 4K resolution, 27-inch or higher screen size, and a panel with great image quality. Thankfully, all of these things are easily available at affordable prices in today's market. Whether you want the greatest 4K monitors or the best curved monitors, you often don't need to spend more than $350-$400 for a well-rounded model.

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Another common question I get about OLED TVs is about how long they'll last. The blue OLED material was always shorter-lived than other "flavors" of OLED. But wait! I hear you exclaim. Wouldn't that mean the LG's whole TV will die out at the faster blue rate, since every pixel incorporates blue? Apparently pairing the blue OLED with yellow, as LG did, provides longevity benefits.

Though this seems odd and convoluted, it obviously works since LG is the only company that has successfully marketed large-screen OLED TVs in any numbers. This is because it's more cost-effective to make ("more" being the key word there).

Another important factor usually ignored is input lag or the delay between the user making an input and the monitor registering the same. This is different from the response time, as it doesn't relate to the pixels but rather the monitor itself. Input lag for mainstream gaming monitors is usually seen to be less than 10ms at different refresh rates.

Like any technology, we'll see larger, cheaper and better OLEDs from LG, at least in the short term. LG has already showed OLED TVs that roll up, as well as impressive and huge 8K models.

OLED displays are expensive, but their drop in price from just a few years ago is dramatic. That has leveled off somewhat, but in return they've gotten even better, with higher brightness and wider color gamut.

OLEDscreen

Now that we've covered the more fundamental aspects of monitor panel types, it's time to delve into the features that differentiate them in terms of good or bad gaming monitors. A decent gaming experience requires superior motion handling and fluid image reproduction in addition to excellent image quality. The gaming performance is determined mostly by three factors: response time, input lag, and refresh rate.

Here's a section of a 2018 LG C8 OLED TV screen displaying a gray test pattern after 5 hours watching CNN on the brightest (Vivid) mode. They're the same image, but we've circled the section with the logo on the right to highlight it. To see it better, turn up your screen's brightness and look for a rectangular shape. In person, it's more visible in a dark room, but much less visible with moving images as opposed to a test pattern. Since it disappeared after running LG's Pixel Refresher, this is an example if image retention and not burn-in.

OLEDstructure

You can measure color reproduction for a particular model by referring to its sRGB or DCI-P3 coverage. These are professional standards for measuring how much of a particular color space a monitor panel can cover. Anything between 90-100% coverage indicates a great display for delivering accurate and lifelike colors. Essentially, IPS and OLED monitors are the best when it comes to color reproduction.

Most gamers should be fine with 144Hz or 165Hz and don't really need a 240Hz monitor, or anything higher than that. While TN panels are highly suitable for ultra-high refresh rates, IPS and VA panels are still the most popular for most gamers. You can find great models featuring both technologies from reputed manufacturers, ranging from 144Hz to 240Hz. Even relatively affordable 1440p OLED monitors are available with refresh rates up to 240Hz.

Would we like to see them even cheaper, and made by more than one company? Absolutely. Until then, they sure make some lovely images.

In the most LCDs, the entire backlight works as one, dimming the entire screen (if that). Local dimming LED LCDs are far better, but still only dim and brighten relatively large "zones" of the screen independently. With OLED TVs, the "dimming" operates on a per-pixel basis. So while the best local dimming LED LCDs may have a few dozen, a few hundred or up to 1,000 dimming zones on the screen, a 4K OLED TV has more than 8 million -- one for each pixel. No LCD has as much control over each pixel's brightness as an OLED TV.

However, for the average gamer, all the other disadvantages of TN panels take center stage. As a result, the slightly higher response times of VA and IPS panels are perfectly acceptable for the majority of gamers.

LG's OLED only use two colors: a sandwich of blue and yellow OLED materials. Then, using color filters, the yellow and blue light is filtered to create red, green and blue. To add a bit more brightness, there's also a clear "white" element, too. It's a lot easier if I show you:

What this means is that each tiny OLED pixel in the screen creates light depending on how much electric current you send it. Lots of current, lots of light. No current, no light. And that's one key to OLED's excellent picture quality.

I'll separate the various terms and technologies surrounding gaming monitors into two categories — image quality and gaming performance. Starting with image quality, this is what you'll experience every time you look at your display, gaming or not. Five major parameters together decide how good your display will look: color reproduction, brightness, contrast ratio, HDR experience, and viewing angles.

Contrast ratio refers to the difference between the brightest and darkest parts of an image displayed on a monitor or display.

As for the best panel type, it's fairly easy to pick once you're aware of the pros and cons of the various technologies. Outside of professional competitive players, no one should really consider TN models today. Between IPS and VA, the two most popular options, choose IPS if you prefer great image quality, responsiveness, and viewing angles. That is, unless you frequently play in dark or dim lighting — in that case, choose one of the better VA models for their superior contrast ratio and image quality.

Response time or pixel response time is the time it takes the monitor's pixels to change colors, usually measured from gray to gray (G2G). TN panels have a big advantage here, as they can easily reach response times of as low as 1ms or lower. This is the reason TN is the tech of choice for affordable ultra-fast gaming monitors even today, such as the 500Hz Alienware AW3524HF monitor.

All modern televisions use one of two basic display technologies: LCD and OLED. The vast majority are LCD, and only some more recent TVs from LG and Sony are OLED. While LCD may be the norm, OLED TVs offer better picture quality overall, though at a higher price.

Perhaps most interesting, these aren't mutually exclusive technologies. Quantum dots (the photoluminescent version) don't really care what kind of light you give them. So you could have an OLED material creating one color of light, with quantum dots creating the other colors (instead of color filters). Maybe that would be QOLED ("Quoh-lead")? Q-DOLED ("Que-doh-lead")?

We don't think burn-in will be an issue for most people, which is why we still recommend OLED TVs for people looking for the best image quality. If you're curious about burn-in and image retention, check out OLED screen burn-in: What you need to know.

Do note that VA panels are known to exhibit ghosting, causing a blurred image in some fast-paced scenarios. But, at least you won't be riddled with the horrible backlight bleeding seen on many IPS monitors. Consider OLED, QD-OLED, and Mini-LED models only if you have around $700-$1000 to spend on a monitor and want the absolute best picture quality and fastest response time on the market.

OLED panels, thanks to the absence of any backlight (unlike the other three technologies), feature superb color reproduction, but generally, the high-end IPS panels actually fare better.

Down the road a little farther is the electroluminescent version of this technology. No LED backlight at all; just pixels made of quantum dots. These direct-view quantum dot displays, "QLED" if you will, should offer all the benefits of OLED at even cheaper prices. This is something Samsung is looking into, since it couldn't get OLED to work in large screen sizes.

Choosing the best gaming monitor for your needs is not always easy, considering the vast number of options of varying quality and prices. From the days of sturdy CRT monitors to the explosion of TN, VA, and IPS models to the advent of OLED monitors, gaming monitors have changed a lot.

Some OLED monitors have higher than 10ms input lag at certain refresh rates, which makes them unsuitable for competitive gaming. But, outside such situations, it's rare that you'll get a panel with a bad input lag in today's market. The overall input lag of your system is dependent on other hardware as well, such as your mouse and keyboard.

According to LG's spokesman: "We have secured a lifespan for OLED TVs of more than 50,000 hours, which is generally longer than conventional TVs." So if you watch six hours of TV a day, that's over 22 years of use.

Color reproduction refers to the accuracy and diversity of colors a panel can reproduce. It's actually determined by the color gamut (the range of colors a display can show) and color accuracy (how well those colors are distinguished from each other). The better and more calibrated these parameters are, the better the image quality will be on the monitor.

At least, that's how long they expect the panel to last. On most modern TVs of any technology, it's the power supply that dies long before the panel. Not to mention that a TV bought today probably won't be able to be connected to anything in 22 years (just like how TVs circa 1994 are obsolete today). But that's for a different article.

OLED TV marketing often claims "infinite" contrast ratios, and while that might sound like typical hyperbole, it's one of the extremely rare instances where such claims are actually true. Since OLED can produce a perfect black, emitting no light whatsoever, its contrast ratio (expressed as the brightest white divided by the darkest black) is technically infinite. And contrast ratio is arguably the most important aspect of picture quality.

A yellow OLED material creates yellow (i.e. red and green) light. When combined with blue (1), this creates "white" light (2). Using color filters (3) the desired sub-pixel color (including clear/white) is created (4).

OLED doesn't have the extreme light output of the best current-generation LCD TVs, though. They're still very bright, and have better blacks for a better contrast ratio, but in a well lit room, or in direct sunlight, you'll be able to see an LCD better. Because of that better contrast ratio, in most other situations, or in a room with curtains, TV shows and movies -- everything from standard-def to high-def to 4K with high-dynamic range -- all really pop.

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Between IPS and VA, the two most popular options, choose IPS if you prefer great image quality, responsiveness, and viewing angles.

OLED stands for organic light-emitting diode. Each pixel in an OLED display is made of a material that glows when you jab it with electricity. Kind of like the heating elements in a toaster, but with less heat and better resolution. This effect is called electroluminescence, which is one of those delightful words that is big, but actually makes sense: "electro" for electricity, "lumin" for light and "escence" for, well, basically "essence."

When an electric current is applied, the liquid crystal cells are able rotate freely through 90° allowing light to pass through resulting in a white display ...

OLED is the only technology capable of absolute blacks and extremely bright whites on a per-pixel basis. LCD definitely can't do that, and even the vaunted, beloved, dearly departed plasma couldn't do absolute blacks.

Still have a question? Tweet at him @TechWriterGeoff, then check out his travel photography on Instagram. He also thinks you should check out his best-selling sci-fi novel and its sequel.

Do not use DC voltage to drive the LCD and keep the voltage within the specified limit. Excess voltage will shorten the display's life. Within limit, the ...

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Contrast ratio and black levels play a huge part in how good the image looks on screen, especially in dark scenes and dim room lighting. This is where the best OLED monitors shine, as the self-lit pixels can shut completely off during dark scenes to deliver an infinite contrast ratio and inky blacks, essentially creating millions of local dimming zones. These days, QD-OLED monitors offer the excellent contrast of OLED monitors with a Quantum Dot layer to provide even higher brightness and richer colors.

A big concern among gamers when buying OLED is the possibility of burn-in, where some parts of an image can become permanently seared into the pixels. Many manufacturers try to solve this by keeping certain elements on the screen moving or by putting the display to sleep during inactivity. Many also offer a burn-in warranty of two to three years after purchase, so you can rest assured. Mini-LED panels can suffer from the halo effect, where some parts of an image can bleed into the surrounding zones.

Why can't LCD do that? The liquid crystal that makes an LCD an LCD only blocks the light created by its backlight. It's like putting sunglasses in front of a candle. Even the best LCDs can't completely block all the light, so in order to get those inky movie-theater-like blacks, you have to turn the backlight down (the "candle" in this analogy).

Mainstream IPS and VA panels usually have peak brightness levels anywhere between 250 and 400 nits. This is more than enough for playing games or watching movies in a scenario where you're sitting quite close to the screen. OLED panels feature significantly higher peak brightness at around 1000 nits, but they also cost a lot more than other models. Mini-LED monitors have emerged as a decent alternative to OLEDs, thanks to the lower prices and a great experience nonetheless.

Today, before choosing the right monitor, you need to carefully understand your use case. And to do that, you need to know the ins and outs of the different panel types among gaming monitors: IPS vs. VA vs. TN vs. OLED.

What makes OLED different from the LCDs found in most homes? How do they create better-looking images? Why are they so expensive? Read on.

Currently, all OLED TVs are made by LG , and how they've made them is rather unusual. All TVs, to create the images you watch, use red, green, and blue mixed together to create all the colors of the rainbow (well, not quite all colors, but most). To create the colored light, LCDs use RGB color filters, while plasmas used RGB phosphors and Samsung 's short-lived OLED TV (and all their OLED-screened phones ) use red, green and blue OLED elements.

In the nearer future, there's mini-LED. While this still uses an LCD layer, there are far, far more LEDs creating the light. Most local dimming LCDs, (i.e., pretty much all high-end LCDs on the market today) have a few hundred LEDs. The first mini-LED, TCL's 8-series, has 25,000 LEDs. The result is an image far closer to OLED, without that technology's price premium. Will we see more mini-LEDs in going forward? Probably, at least until we get MicroLED, which is a completely different technology, and an even cooler one at that.

OLED, or organic light-emitting diodes, can produce some of the best picture quality of any display technology. Curious what makes them different? You've come to the right place.

Got a question for Geoff? First, check out all the other articles he's written on topics like why you shouldn't buy expensive HDMI cables, TV resolutions explained, how HDR works and more.

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Some of the biggest contributors to an excellent visual experience are the brightness and contrast ratio of a monitor, which also determine whether you can expect a decent HDR experience from your display. While brightness in TN, VA, and IPS monitors is not dependent on the panel itself, but rather the backlight used, you'll not find many super-bright monitors using TN panels. This is due to the TN technology falling out of favor in recent years, now limited to super-high-refresh-rate displays alone, where brightness isn't a big factor.

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The refresh rate is perhaps one of the most recognizable factors among gamers when choosing a monitor. Moving from a 60Hz to a 144Hz or higher refresh rate is a big jump that makes a night-and-day difference in your gaming experience. The buttery-smooth motion and the added latency improvements contribute to a superior experience, and it's impossible to go back to a 60Hz monitor.

OLEDmonitor

As long as your graphics card is powerful enough to deliver the desired FPS at a resolution you like, you can choose anything from VA to IPS to OLED monitors, keeping other considerations in mind.

The apparent downsides, such as light output and color accuracy, don't seem to be issues. Sure, they're not as bright as the brightest LCDs, but they are still very bright, and the current models have the same color saturation as the best LCDs.

OLED panels feature significantly higher peak brightness at around 1000 nits, but they also cost a lot more than other models.

OLED TVs take all that's good about LED-backlit LCDs and make it better. Each cell is itself an emitter of light, with an organic (the O in OLED) covering over ...

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OLED TVs are susceptible to burn-in, but in all but the most extreme cases what you'd see is more accurately described as "image retention." Image retention goes away after watching something else for a few minutes. Burn-in is permanent, and would only happen if, say, you only ever watch one channel for 8 hours a day every day. As long as you use your TV to watch a variety of content (i.e., more than one channel), you should be fine.

The viewing angle refers to the horizontal and vertical angles within which you can view the image on screen without any degradation or color shifting. IPS monitors are known for their excellent viewing angles of around 178°, which means you can view the image perfectly well even from the sides. Compared to TN and VA panels, where you need to sit directly in front of the screen to get the best experience, IPS panels are far better.

Speaking of apparent downsides, here's another: burn-in. Or at least, the potential of burn-in. Burn-in is when an area of the screen can't produce the same amount of light as the rest. It's essentially more worn out than the rest. That section might look like it has a bit of a shadow, or in extreme cases, you can make out the shape of what burned in. For example, a shadowy after-image of a news station's channel logo might be visible when you change the channel.

As long as it is not VA, you are good to go. I tried it before and always have been disappointed because of the terrible black smearing on cheaper models. In comparison IPS panels even on a budget offer a fantastic image. Stable viewing angles, good blacks and color reproduction and while usually offering lower refresh rates, they are still totally fine and worth the bit of extra money to catch up to VA.

A high-end gaming monitor comes with a premium price tag, so make sure you're making the right choice after assessing your individual needs. Most gamers don't need cutting-edge monitors to enjoy their favorite games, so don't get affected by FOMO. Today's market offers plenty of affordable options for every use case, and quality assurance has certainly improved as well. You don't need to spend big bucks to get a great gaming display anymore.

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Samsung briefly sold OLED TVs, but it has effectively conceded the OLED TV space to LG. There are rumors that might be changing in the near-ish future, but for now it's still LG's game. Sony buys OLED panels from LG and puts their own processing and design to them. Outside the US, companies like Panasonic and Philips do the same.

IPS panels have improved drastically over the years, with response times of around 1ms finally possible on some high-end models. OLED panels, however, are in the lead again here, featuring response times of less than 0.1ms, much faster than even the fastest TN panels. This is again due to the fact that OLEDs use self-lit pixels and can be switched on or off instantly.

One of the most interesting current LCD technologies is quantum dots. These microscopic particles glow a certain color when you give them energy. Many new TVs have the photoluminescent version, with dots that glow a specific color when hit with light (usually the light from an LED backlight). These help LED LCDs achieve the deeper colors required of the wide color gamut aspect of high-dynamic range (HDR).

We've reviewed several OLED models over the years, and they consistently make fantastic-looking images. They're regularly CNET's pick for best picture quality of the year.