Thanks for the article. Notice how there is no debate on what a 1080p projector is. Total waste of money, earth resources and will result in huge electronics waste over the coming years. It often connotes that there is something inauthentic and undesirable about the pixel shifting technologies and the 4K projectors that use them. Consider what you experience when you see an image from a high-end DSLR on a TV or computer monitor or phone or tablet. Different manufacturers use different terminology to describe this technology. Then, before it reaches the projector lens, the images apparent resolution is boosted using so-called pixel-shifting technology. Even the current JVC and Epson models that use two-phase pixel shifting on 1080p chips can produce pictures that come a lot closer to replicating a full 4K picture than one might imagine possible--sometimes they can even beat the 4K UHD DLP chips in the subjective impression of image sharpness. A system is only as good as its weakest link. Joe, all TVs and projectors must by definition upscale or downscale a video signal internally so that it matches its native display characteristics, though some, like the native 1080p Epsons that accept 4k/HDR, do give you the option to manually turn off the pixel-shifting enhancement with 1080p signals and just view those signals organically via the 1080p chips without processing. So it does not produce 8.3 million pixels, and Epson has never represented that it did -- they market this class of projectors as 4K-enhanced. This constant jump would make pixel structure less distinct. You get maximum benefit from 4K projectors when using them on 100" or larger screens, depending on your viewing distance. But according to the Consumer Electronics Association (CEA), a projector being described as 4K UHD must have at least one HDMI input that can accept a native 4K UHD signal, and be capable of. Time and time again weve been surprised by new models and the seriously impressive images they can achieve.When you take the steep price difference between these models and the native 4K alternatives, into account, its really worth giving them their dues.Resolution: 3840 x 2160 pixels (achieved through pixel shifting)Total pixels: 8.3 million, Not to be confused with: Native 4K DCi resolution. This is a fantastic article. Timely writeup of course, thanks. So the VW285ES looks subjectively sharper and more three dimensional despite the fact that there really is no additional detail in the picture. Thus, in theory, if the number and size of discrete pixels has anything to do with it, the VW285ES should be able to resolve more detail than the UHZ65, assuming the three chips on the VW285ES are perfectly aligned. Question, do all 4K projectors automatically (default attempt) upscale all 1080p content? A screen of reasonable size with a standard black felt frame will usually hide it, but if you project on a wall or maybe have a screen with a fine bezel it's just there. On the UHD50, when you are at the same distance of 12 inches from a 5-foot wide screen, you can detect an extremely subtle hint of pixel structure, but it is nowhere near as distinct as on the UHD60. Likewise, we've seen something similar in a few single-chip 4K/UHD DLP models that use the 0.47-inch 1080p DMD before applying XPR pixel shifting for 4K; there's a mode where you can turn off the 4-phase pixel shifting and just view the output of the DMD prior to the shifting. Both have discernable discrete pixel structure, but the pixels on the UHZ65 are (by comparison) larger and more well-defined. True 4K, provided color and contrast are of similar high quality is still a different and better beast. When comparing these projectors there were obvious differences in detail and image sharpness. It might be fine with static images but movement causes visual problems. Today there are 4K projectors using chips in various physical resolution formats -- 1920 x 1080, 2716 x 1528, 3840 x 2160, and 4096 x 2160. Freephone 0800 073 0833, Projectorpoint 2022 all rights reserved, Top 7 Laser Projectors For Businesses 2022, Best Meeting Room Laser Projectors For 2022, Why Choose 4K Resolution Displays For Your Business, Choosing The Right Size Display For Your Meeting Room. This means all the AV devices in the setup, any switchers, splitters, AV receivers and, of course cabling.Achieving the right level of data transfer speed with 4K content is a bit trickier than it is with standard HD. At this distance the UHD60 and the UHD50 look the same, at least in terms of detail resolution. So when we back up from the screen to a viewing distance of 1.5x the screen width and put on some 4K HDR material, the Epson 4000 actually appears to be a bit sharper than the PX727-4K. So put me in the Pixel-Shifting convert category. Small differences in image detail which are obvious when examined close up become insignificant or even invisible when you sit back to enjoy a movie in a typical theater set up. In the world of consumer 4K, UHD TV's the TV's panel has anativeresolution of 3840 x 2160 pixels. Since "4K" is all about resolution, it is not surprising that so many folks have been preoccupied with native 4K vs. pixel shifting 4K, and debating the merits of each. Only native 4k projectors? When viewing the Epson HC 4000 from our close-up distance of 12 inches from a 5-foot wide screen, there is no distinct pixel definition. Once again, the big issue is contrast - the UHZ65's 4K HDR picture is substantially brighter and noticeably higher in contrast than the VW285ES. It is a terrific technology that is hard not to love once you see it. Nobody I know of with a projector uses such a small screen. If youre watching a BluRay in 4K quality, the difference between the quality of resolution of the image produced by a native 4K projector and a pixel-shifting 4K UHD resolution projector is arguably negligible apart from when it comes to small intricate details/text in the image then native 4K wins hands down. It begins with this notion that detail is somehow irrelevant once one can no longer discern individual pixels. The chip's physical resolution, at least in the home theater world, has become irrelevant. In addition, one of the biggest factors influencing what you see as image detail and sharpess is contrast. Hey Evan, Since you are talk about the differences between a 2 and 4 phase chip, does that mean they can easily change the 2 phase chip to a 4 phase chip in the future for 8K on the .66 chipset? Because it's obvious. Let's now consider the display of an HD 1080p picture rather than 4K HDR. Notice how no one argues over whether the Sony VW285 is 4K or not. Viewing distance is a huge factor in perceived resolution. The lens on Sony projectors has been well known as a limiting factor in transmitting true 4K resolution in the lower models. When viewed very close up they look not quite perfectly identical as far as the indistinct pixel array is concerned, but they are pretty darned similar. In our new reality of 4K resolution and pixel shifting technologies, there is ZERO correlation between native resolution (the number of physical pixels on the chip) and the actual resolution of the picture you see on the screen. In reality, pixel shifting has produced rapid advances in picture resolution at prices far lower than you must pay for projectors that have native resolution 4K chips. That holds for all 4K compliant projectors that rely on pixel shifting -- whether we are talking about a 1080p projector that doubles the pixel count for something in between 1080p and 4K resolution (like the Epsons), or a full 4K projector that puts all the pixels in a UHD signal on the screen using pixel shifting (ie, all the single-chip 4K DLP models). The projectors that can display the full 8.3 million pixels have now won countless awards from the toughest critics using lamps, lasers, and LED light sources over many years since the article was written. Any conclusions reached based upon the number of discrete elements in the panels are erroneous, For the person talking about 110" screens, you're right, 4K is not for you. The indistinct pixel structure on these projectors is a feature of the four-phase pixel shifting going on with the 0.47" chip. The UHD60 has two-phase pixel-shifting to double the number of pixels on the screen while the UHD50 has four-phase shifting to quadruple the number of pixels. Heres a quick guide to HDMI cables for 4K resolution formats :Basic 4K less than 10-bit colour, no HDR =10.2Gbps.Standard 4K 10-bit colour, no HDR =11.1Gbps.Advanced 4K 10-bit colour or higher and HDR =18Gbps.You can find out more about home cinema cabling in detail in ourcabling guide.Finally, check out a range of4K projector screensto complete your setup and ensure that none of the details from the image is lost to visual noise created by screen material structure of non 4K screens such as standard matte white. Ive seen no such projector that is 1080p look like a 4K image. Butthere is one inescapable fact and I can scarcely believe this doesn't get talked about more. Good informative post Evan. To detect any visible differences, the detail must exist in the source to begin with, so we need to use a 4K source. However, with HD 1080p we once again encounter a big difference in contrast, except this time the VW285ES wins. The ViewSonic PX727-4K has the 0.47" DLP chip with a 1920 x 1080 mirror matrix, generating a 4K picture (8.3 million pixels) via four-phase pixel shift. And as we know, high contrast makes a picture look sharper. The short answer is yes, you will enjoy enhanced detail with 1080p content on one of these 4K-friendly projectors. So not only does native 4K imaging have a set of applications for which it is uniquely advantageous, 8K does too, and it is coming sooner than you think. What is this? Are these different technologies from native 4K?Those selling you the latest tech dont always take the time to explain the difference between these terms and how this difference affects your purchase decisions. Once you back up to a viewing distance of two feet from a 5-foot wide screen (that is, 0.4x the screen width and a lot closer to the screen than anyone would want to be when watching a movie), all hint of visible pixel structure disappears on both projectors. Each pixel is extremely small of course, but you can see clearly distinct pixels in rows and columns when you examine the image close up. I've never had a 1080p projector with this problem why do the uhd dlp's have this, makes me wonder if we are getting a uhd picture made from less than the chip can produce. This occurs in the first scene, where detail in the straw hat and the subtle texture of the leather jacket are more successfully resolved by the VW285ES. With true 4K source material, a true 4K projector that is displaying simultaneously the entire array of pixels will have an advantage in actual information visible. Thanks for your comments, Felix. Visible pixelation (the screendoor effect) on lower resolution projectors was supremely annoying and desperately to be avoided. At any normal viewing distance beyond 1.0x the screen width, the differences in perceived sharpness of upscaled 1080p material is entirely attributable to factors other than the physical resolution of the chips. It makes senses this would work because they have already perfected this on the 1080p chipset, so they probably already have this 8k setup now on a 4 phase .66 chipset. Now that doesn't mean that a projector with superior contrast or more accurate color won't be deemed superior in overall enjoyment. 720p to 4K conversion (as you might experience coming from a cable box on certain channels) is more complex and not always quite as clean, though most set-top boxes will perform a conversion from 720p to 1080i or 1080p before sending it to the display -- probably with worse results than if you let the display do it. Then Texas Instruments released an 0.66" 4K UHD chip with a physical mirror matrix of 2716 x 1528 which uses two-phase pixel shifting to create 8.3 million pixels, which is 4K UHD.
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