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QLED vs. OLED

Monday, 19 April 2021 11:29
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For the last few years, Samsung, the most popular TV maker in the world, has been branding its TVs “QLED.” Its 2021 QLED lineup is massive, with Neo QLED models in 4K and 8K resolution, The Frame art TV, Serif and the Sero rotating TV all bearing the Q. Meanwhile, LG’s 2021 OLED TVs include six series, from the relatively affordable A1 to the 8K Z1 to a model that rolls up like a poster.

Picture quality comparison:

QLED TV picture quality varies more than OLED. Samsung and TCL each have multiple QLED series and the most expensive perform a lot better than the cheaper ones. That’s mainly because the biggest improvements in the picture quality of QLED sets don’t have much to do with quantum dots. Instead they’re the result of mini-LED backlights, better full-array local dimming, bright highlights and better viewing angles, which help them outperform QLED (and non-QLED) TVs that lack those extras.

Meanwhile, every OLED TV I’ve reviewed has very similar image quality — all have earned a 10/10 in picture quality in my tests. There’s some variation among different OLED TVs, but they’re not nearly as significant as the differences between various QLED TV series. In 2021, LG and Sony will sell the first OLED TVs that might perform significantly better, thanks to higher brightness. We’ll see.

OLED has better contrast and black level. One of the most important image quality factors is black level, and their emissive nature means OLED TVs can turn unused pixels off completely, for literally infinite contrast. QLED/LCD TVs, even the best ones with the most effective full-array local dimming, let some light through, leading to more washed-out, grayer black levels and blooming around bright sections.

QLED is brighter. The brightest QLED and LCD TVs can get brighter than any OLED model, which is a particular advantage in bright rooms and with HDR content. In my tests, however, OLED TVs can still get plenty bright for most rooms, and their superior contrast still allows them to deliver a better overall HDR image than any QLED/LCD TV I’ve tested.

OLED has better uniformity and viewing angles. With LCD-based displays, different areas of the screen can appear brighter than others all the time, and backlight structure can also be seen in some content. Even the best LCDs also fade, lose contrast and become discolored when seen from seats other than the sweet spot directly in front of the screen. OLED TVs have almost perfectly uniform screens and maintain fidelity from all but the most extreme angles.

Resolution, color, video processing and other image quality factors are basically the same. Most QLED and OLED have the same resolution and 4K, and both can achieve 8K resolution too. Neither technology has major inherent advantage in color or video processing areas. Check out OLED vs. LCD for more details.

QLED can get bigger and smaller (and cheaper)

There are only five sizes of OLED TV on the market today: 48-, 55-, 65-, 77- and 88-inch, with an 83-inch version on sale later in 2021. Meanwhile, QLED TVs come in 32, 43-, 49-, 55-, 65-, 75-, 82-, 85- and, yes, 98-inch sizes. Of course, non-QLED LCD TVs can get even smaller.

One big advantage, so to speak, that QLED and LCD have over OLED is the cost of mainstream sizes over 65 inches. Large televisions are the fastest-growing segment of the market and show no signs of slowing down. LG’s 77-inch OLED costs around $3,300, significantly more than most 75-inch QLED TVs, and in larger sizes the difference is even more drastic.

Samsung is actually working on an OLED TV of its own (again), investing $11.1 billion in new facilities to create “QD display” tech that’s basically OLED with a different name — and quantum dots, natch. Rumors pin 2022 as the earliest customers could buy one.

For now, however, OLED rules the picture quality roost over QLED.

Source: https://www.cnet.com/news/qled-vs-oled-samsung-and-lg-tv-technologies-explained/

Sales of Networking Gear Rise

Monday, 19 April 2021 11:20
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Likely driven by the work from home and distance learning trends, the PowerHouse Alliance distribution group recently created a white paper discussing the emerging trend in consumer networking. This white paper was based on a survey of over 55 distributors analyzing sales data from the start of 2020 through the end of 2020.

Using these distributor interviews and sales data pulled from 2020, they anticipate a 54% increase in home networking in 2021. In addition, they project a 15% increase in home control/automation and 4K displays.

Manufacturers have done a great job at keeping up with spikes in demand, in spite of the difficulty finding integrators to actually perform the installations. However, we are seeing inventory levels of network electronics dropping due to the backup of container ships at the ports.  This may start to have an effect on projects in the near future.   Hopefully, manufacturers will continue to produce and get their products out while these new trends encourage more AV integrators to focus on the networking and not just the audio and video aspect of business.

Home & Office Network Solutions has been specializing in networking since its inception in 2003.

Smart Living Requires Broad Wi-Fi Coverage and Bandwidth

Sunday, 28 February 2021 15:23
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The average home network wasn’t built to handle the number of connected devices that consumers have needed to use during the pandemic, especially when multiple family members are taking advantage of multiple services — streaming media, e-learning, videoconferencing — all at the same time.

As you know if you’ve read previous e-newsletters or even been to our website, we have seen an increased demand for commercial-grade networks in the home. Generally, this need doesn’t come from someone asking for more hard wiring or additional access points, it comes from people simply wanting the spinning wheel to go away when they’re trying to watch a movie or they are tired of their video call buffering. Last spring and summer we also received a lot of requests for connectivity outdoors, where many were working and studying, or where automated lights, cameras, and more are increasingly part of the smart living experience.

Homes large and small now function like corporate offices and require more internal bandwidth and Wi-Fi coverage, in the form of a powerful router, high-speed network switches and multiple, strategically placed wireless access points inside and outside of the home.

This need hasn’t created just a huge demand on our design and installation services, it has created a huge demand for the products we install, preferably Ubiquiti systems. More and more often the products sell out at our distributors within weeks of them receiving them, to the point that we order as soon as we get a contract. Even then, sometimes we have to go directly to the manufacturer in the hopes that they are keeping some in stock, but then we wait longer for supplies to be delivered when they are manufactured across the country.

This demand is not going to end any time soon, so all we can do is be honest about timelines and ask for patience, which we are fortunate to see from the majority of our clients. Once these network systems are in place in the home, clients forget what it was like to have Internet problems.

Clean air Technology

Sunday, 28 February 2021 15:19
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While Home & Office Network Solutions does not recommend or install Clean Air Technology we thought the topic might be of interest to our readers so we start with a basic question. Will it control the spread of Covid?

The pandemic has brought heightened awareness of just how filthy the world can be, and marketers are taking advantage of it.

Air filtration is a tricky, complicated business, but it’s one of the main ways that experts say the spread of Covid could be controlled. Even a cheap, homemade air purifier might help limit the spread of viruses in a room, if done right.

A portable air purifier might seem handy, but if it’s too small or not powerful enough, it won’t be able to move enough air to properly filter a room. Even if the purifier is efficient, how well it works will depend on a variety of factors as variable as the different environments where you might find yourself: the number of people in a room, the shape of the room, its temperature and humidity, and so on.

So, while these products might help prevent the spread of Covid, most are being sold with a disclaimer that they “may or may not prevent Covid transmission.” That said, buyer beware.

Fixed Clean Air Technology is available for home HVAC systems. Hospitals use specialized UVC (Ultraviolet C) lights to sanitize equipment. Technology similar to what they use is used in the home systems. The devices are encased in the HVAC ductwork to protect the homeowner from harm. This type of light can be incredibly harmful on surfaces and especially your skin and eyes. When you see consumer gadgets with UV sanitizers in them, what’s most likely being used is the shorter wavelength (and much gentler) far-UVC light. Still, far-UVC has been shown to inactivate airborne coronavirus particles but more research is needed on the effectiveness. An interesting explanation of Ultraviolet light sanitization can be found at https://insights.regencylighting.com/uvc-vs-faruvc.

2021 Trends in Technology

Thursday, 28 January 2021 09:48
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Deloitte Global recently released its 2021 TMT Predictions report, which examines trends likely to change the way we work and live. Below are five that may particularly affect the consumer landscape.

5G Myths
Although data shows that consumer health will not be adversely affected by 5G radio waves, Deloitte predicts that up to a third of people around the world will worry about it anyway. To assuage consumer concerns, the telecom industry should communicate with legislators, be proactive on social media, and reach out to vertical sectors to explain how 5G works. For more on 5G, don’t miss the CES® panel “5G’s First Year: From Insight to Innovation.”

VR Comes to Education
Overall spending on augmented, virtual and mixed reality technology (collectively called XR) — headsets, software and services, including purchases by consumers, rose in 2020 to US$12 billion globally, and is expected to grow at 50% annually to 2024. Will we reach a tipping point for education? COVID-19 has forced multiple schools to use XR since in-person training wasn’t possible.

Virtual Doctor Visits
Five percent of all patient visits worldwide will be video calls in 2021, and the market for pure-play telehealth virtual visit solutions (both video and non-video) will reach US$8 billion. More than US$33 billion of medical-grade home health care technology — mainly therapeutic and monitoring solutions and including FDA-approved smartwatches — will be sold in 2021, up almost 20% over 2019. For additional insights, we encourage you to tune into Deloitte’s CES panel, “The Road to DIY Consumer Health.”

The Hyperquantified Athlete
By the end of 2021, multiple professional sports leagues will establish new formal policies around the collection, use and commercialization of player data. This can drive fan engagement and create new revenue streams from licensing the data, especially for gambling. One scenario is an app that would enable betting during games, based on data from player wearables.

8k TVs
In 2021, Deloitte Global predicts that more than one million 8K TVs will be sold, representing approximately $3.3 billion around the world and will almost double 2020 sales. Consumers will buy 8K TVs for four main reasons:
• Futureproofing. There’s little 8K content now, but when there is, buyers will be ready.
• Early adopter or the”cool factor.”
• To consumers, 8K just sounds better than 4K.
• Many cutting-edge TV sets happen to also be 8K.

Source: CEPro