Non-profit standards association VESA has put forth a new open standard called DisplayHDR for defining HDR specifications and performance for PC laptop and desktop LCDs. The new test specification, dubbed Display HDR 1.0, defines a transparent testing methodology and definitions along with specifying three tiers of HDR system performance that will identify displays as being certified for minimum, mid-range, and high-end HDR with their respective badges of DisplayHDR 400, DisplayHDR 600, and DisplayHDR 1000. Consumers will be able to easily identify which panels have HDR and how they stack up.
The new HDR standard was devised by VESA with input from over two dozen of its member companies including major OEMs of displays, panels, graphics cards, CPUs, display drivers, and color calibration providers. DisplayHDR is reportedly a fully open and transparent standard with automated tools that end users can download and run to verify the results for themselves. The standard includes three peak luminance tests, two contrast measurement tests (native and local dimming), color testing and validation of BT.709 and DCI-P3 color gamuts, bit-depth requirement tests (see below), and HDR backlight response time measurements.
DisplayHDR 400 represents the minimum entry-level tier of HDR per the VESA specification and specifies that a LCD display must feature at least 400 nits brightness (both short, local bursts and full screen flashes), 8-bit color depth, HDR-10, and global dimming. VESA notes that many non-HDR displays that advertise as supporting 8-bit colors, it is actually a 6-bit panel that uses a dithering algorithm to achieve a simulated 8-bits. DisplayHDR specifies true 8-bit at a minimum, and for DisplayHDR 600 and DisplayHDR 1000 displays must achieve 10-bit depth using 8-bit panels combined with 2-bit dithering at a minimum.
Display and PC manufacturers have reportedly had their hands on the DisplayHDR test specification for some time now and are working on validating their displays so that they can offer products with the DisplayHDR logos. New product announcements and demonstrations are expected during CES 2018 next month with DisplayHDR compatible products showing up as early as Q1 2018. VESA notes that while DisplayHDR currently only targets LCDs, it hopes to extend the open standard to include OLED displays in the future.
I think this is a good thing as there is a lot of confusing and conflicting advertising out there when it comes to HDR. A vendor neutral specification and badge that can also be independently tested may be just what the display market needs to push HDR into the mainstream.
Subject: Displays | August 17, 2015 - 05:07 PM | Jeremy Hellstrom
Tagged: video, monitor, mg279q, lcd, ips, freesync, display, asus, 90Hz, 2560x1440, 144hz, 1440p
The response to Al's review of the ASUS MG279Q was, to be polite, somewhat energetic. While not much was learned a lot of opinions were voiced and occasionally they were even on topic. The Tech Report, not dissuaded by the response just posted a 10 minute video offering their thoughts on the new Freesync technology in general and this monitor specifically. The Closed Caption feature offers some rather amusing translations of what is being said but you should pay attention to what is actually being said as the video offers a good overview of what FreeSync is.
"Asus' MG279Q is a 27" FreeSync monitor with a 144Hz, 2560x1440 IPS panel for an appealing price. Our own Gyromancer, Nathan Wasson, has spent some quality time with the MG279Q, and he's collected his impressions in video form."
Here are some more Display articles from around the web:
- Asus MG278Q FreeSync Game Monitor @ Kitguru
- BenQ GW2765HT @ Kitguru
- BenQ RL2755HM @ Kitguru
- SilverStone SST-MR01 Aluminium Monitor Riser @ eTeknix
Introduction, Specifications, and Packaging
AMD fans have been patiently waiting for a proper FreeSync display to be released. The first round of displays using the Adaptive Sync variable refresh rate technology arrived with an ineffective or otherwise disabled overdrive feature, resulting in less than optimal pixel response times and overall visual quality, especially when operating in variable refresh rate modes. Meanwhile G-Sync users had overdrive functionality properly functioning , as well as a recently introduced 1440P IPS panel from Acer. The FreeSync camp was overdue for an IPS 1440P display superior to that first round of releases, hopefully with those overdrive issues corrected. Well it appears that ASUS, the makers of the ROG Swift, have just rectified that situation with a panel we can finally recommend to AMD users:
Before we get into the full review, here is a sampling of our recent display reviews from both sides of the camp:
- ASUS PG278Q 27in TN 1440P 144Hz G-Sync
- Acer XB270H 27in TN 1080P 144Hz G-Sync
- Acer XB280HK 28in TN 4K 60Hz G-Sync
- Acer XB270HU 27in IPS 1440P 144Hz G-Sync
- LG 34UM67 34in IPS 25x18 21:9 48-75Hz FreeSync
- BenQ XL2730Z 27in TN 1440P 40-144Hz FreeSync
- Acer XG270HU 27in TN 1440P 40-144Hz FreeSync
- ASUS MG279Q 27in IPS 1440P 144Hz FreeSync(35-90Hz) < You are here
The reason for there being no minimum rating on the G-Sync panels above is explained in our article 'Dissecting G-Sync and FreeSync - How the Technologies Differ', though the short version is that G-Sync can effectively remain in VRR down to <1 FPS regardless of the hardware minimum of the display panel itself.
Introduction and Specifications
Seiki has spent the past few years making quite the entrance into the display market. Starting with LCD TVs, they seemingly came out of nowhere back in April of 2013 with a 50” 4K display that was available at a very competitive price at that time. Since then, we’ve seen a few more display releases out of Seiki, and they were becoming popular among home theater enthusiasts on a budget and for gamers who wanted a bigger panel in front of them. Last June, Seiki announced a desktop line of 4K monitors. These would not just be repurposed televisions, but ground-up designs intended for desktop professionals and gamers alike. The most eagerly awaited part of this announcement was promised 60 Hz support at 4K resolutions.
Just under a year later, we are happy to bring you a review of the first iteration on this new Seiki Pro lineup:
Subject: General Tech | July 9, 2014 - 01:38 PM | Jeremy Hellstrom
Tagged: cellphone, lcd, quantum dots
Research into using quantum dots in LCDs has been ongoing and several breakthroughs at research laboratories have proven that they can provide much a much wider and more accurate colour spectrum than conventional backlit LCDs. The size of the dot effects the colour, with larger dots fluoresce red, mid-sized dots green and the smallest blue, emulating the familiar spectrum of pixels at a lower energy cost and greater accuracy. DigiTimes is reporting on the predictions of DisplaySearch which feel that quantum dots will be the next step forward for LCD technology and could represent up to a quarter of the smartphone display market by 2020.
The technology to incorporate quantum dots into displays is currently available but there are several hurdles which need to be overcome before you can expect to see them in your next mobile device. First and foremost is the price of manufacturing, as with any new process the first generations are quite expensive to manufacture, even if it is ways to molecularly seed a panel with a tailored particles to produce quantum dots succeeds in large quantities. Current mass production relies mostly on heavy metals such as Cadmium which are strictly regulated when used in commercial products and would likely not be approved for use in the production of mobile phones in the amounts currently required. It won't happen in the next few generations of phones but keep your eyes peeled for greatly enhanced LCD panels by the end of the decade.
"The firm said that the penetration of quantum dots in smartphone TFT LCDs will be 3% in 2015, growing to 26% in 2020. Penetration in tablets will also be relatively high, with nearly 2% penetration in 2015, growing to 15% in 2020. The quantum dot penetration in LCD TVs is expected to be lower, due to the large area of TV displays. DisplaySearch forecasts that less than 1% of LCD TV screens will use quantum dots in 2015, growing to 9% in 2020."
Here is some more Tech News from around the web:
- TSMC to speed up development of 10nm process @ DigiTimes
- Break Your Frames? Print Some New Ones! @ Hack a Day
- Adobe issues critical Flash Player update for Windows and Mac @ The Inquirer
- Teensy card skimmers found in gullets of ATMs @ The Register
- It's finally happened: Bloke builds BOFH-style goofing-off cattle prod @ The Register
- Panic like it's 1999: MS Office macro viruses are BACK @ The Register
Subject: Displays | November 20, 2012 - 04:33 PM | Jeremy Hellstrom
Tagged: asus, PLS, lcd, 2560x1440, PB278Q, 27
Before they even turned the ASUS PB278Q on, Hardware Canucks had formed several opinions about the monitor; on the positive side the stand was very versatile and more stable than other 27" displays but on the negative side was the complete lack of an anti-glare coating. The OSD was quite comprehensive, especially if you contrast it with some of the high definition displays from Korea we have seen recently. The overall performance of monitor was not quite up to the Samsung SyncMaster 27A850 which is another PLS display on the market, however you can get the ASUS display for at least $100 less which may make it the preferred choice of those needing something better than a TN display but can't afford the top model.
"PLS panel technology hasn't been around for all that long but it has already made a lasting mark upon the display market. ASUS' new PB278Q puts this technology to good use in a 27" 2560 x 1440 WQHD monitor that is targeted towards gamers and professionals alike."
Here are some more Display articles from around the web:
- Asus PB278Q Review @ TechReviewSource
- ASUS PB278Q Review: An IPS Competitor Emerges @ AnandTech
- Philips Brilliance P-Line 241P4QPYKES 24″ LED Monitor @ Kitguru
- Dell UltraSharp U2713HM Review @ TechReviewSource
From Viewers Like You...
About two months ago, a viewer of the podcast that Ryan co-hosts on the This Week in Tech network, This Week in Computer Hardware, wrote in with some information that immediately excited the staff here at PC Perspective. Ryan for a long time has been of the opinion that the proliferation of 1080p displays, and prohibitive cost of high resolution monitors has been holding the industry back as a whole. With talk of 4K displays being introduced for consumers this year, a major topic on the podcast in the weeks prior to this viewer email had centered around why we haven't seen affordable 2560x1440 (or 2560x1600) displays.
This brings us back to the knowledge which the listener Jeremy bestowed upon us. Jeremy brought to our attention that various eBay sellers were reselling and exporting generic 27", IPS, LED backlight, 2560x1440 monitors from South Korea. What is remarkable about these displays however is that various models can be found for just around, or even under $350. Everyone listening, including Ryan and his co-host Patrick Norton became immediately interested in these monitors, and I went into research mode.
Subject: General Tech | January 12, 2012 - 04:39 PM | Tim Verry
Tagged: touch screen, smart window, Samsung, lcd, CES
Aside from "no compromises," "smart" was the big buzz word at this years CES (Consumer Electronics Show) 2012. Among Samsung's "smart" products on display was a transparent touchscreen LCD monitor that doubles as a window named appropriately enough the Transparent Smart Window. The new concept design can be made transparent to see the world outside or completely opaque using virtual blinds that blank out the window with a window blind closing animation, even. Tested's Will Smith takes a look at the Samsung window in the video below.
The window display can show more than just blinds, however. It is capable of acting as a fully functional LCD display; playing movies, browsing the Internet, and displaying widgets and backgrounds are all possible. At CES, many sites noted the Twitter application and weather widgets for seeing just how much better the weather is elsewhere in the world. As it is just a concept, there were no specific specifications or hardware sets given. Pricing and availability are just as much up in the air (unknown). It is not likely that we will see this exact product come to market. On the other hand, the technology behind the concept device is what is important, and we will likely see it rolled into other future products. One such likely application of this technology would be to finally bring the HUD, or heads up display, to car windshields including image/light enhancement, back-up cameras, car information (speed, warnings, gps, ect), et al.
What other applications of this technology would you like to see come to market?
PC Perspective's CES 2012 coverage is sponsored by MSI Computer.
Follow all of our coverage of the show at http://pcper.com/ces!
Subject: Displays, Mobile | August 12, 2011 - 04:51 AM | Tim Verry
Tagged: solar cell, mobile, lcd, display
According to Ars Technica, researchers at UCLA announced on Tuesday a new LCD screen containing photovoltaic cells that promises to reduce back-light energy waste and improve battery life on mobile devices.
My N900 eats up battery with an hour of Angry Birds, but can go for two days with the display off. Where's my happy medium?
The researchers have placed what they are calling polarizing organic photovoltaics inside the LCDs in such a way that light that is normally filtered out and blocked in areas to create the displayed images can now be (mostly) recovered. While the process does not result in 100% reclamation of energy due to energy loss during the conversion process(es) and heat given off by the back-light, in a mobile device any amount of energy that can be recovered is desirable. Ars Technica states that up to 90% of a battery’s power is used to power the back-light of the display. Further, of that percentage, up to 75% is lost to the polarizing layers. By infusing the polarizing layer with photovoltaic cells and reclaiming as much of the otherwise wasted light as possible, battery life could be dramatically extended.
Mobile devices are getting beefier multi-core processors and graphics chips, numerous wireless radio connections (4G, WiFi, Bluetooth), and large power hungry displays; however, battery technology advancements have been rather stagnant and flat. As a result of this, having to make processors, displays, and other components as efficient as possible to make up the difference of battery technology not keeping up with other advancements, interesting tweaks like the photovoltaic infused displays become that much more important.
Whether this particular technology will catch on and work as well as they claim remains to be seen; however it is nonetheless an interesting experiment. More data on the researchers’ project will be published in the Advanced Materials journal in September 2011. What are your thoughts on the idea?
Subject: General Tech | July 29, 2011 - 11:22 AM | Jeremy Hellstrom
Tagged: lcd, solder, capacitor, DIY
Over at The Tech Report you will find a handy guide on restoring a monitor with busted caps to working condition, for not much money nor effort. A bit effort is all that you need to track down a dead capacitor on the circuit board, identified by the bulge which will be apparent at the top of the cap. Once you've found it you just need to desolder it and swap in a new one and your once broken monitor will be working again. Even better, this procedure can resurrect any peice of equipment you have which is suffering from failed capacitors. If you've never used a soldering iron to fix something, this would be a great place to start.
"In his latest blog post, our own David Morgan shows how to bring a monitor back from the dead with a simple capacitor transplant."
Here is some more Tech News from around the web:
- Google launches Page Speed Service optimiser @ The Inquirer
- Hackers' Flying Drone Now Eavesdrops On GSM Phones @ Slashdot
- Ask the Experts: Enterprise & Cloud Computing Questions Answered, Part 1 @ AnandTech
- Compro IP 70 Network Camera @ AnandTech