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posted by martyb on Thursday October 17 2019, @05:42AM   Printer-friendly
from the does-anyone-still-*need*-to-use-a-CRT? dept.

Samsung is investing an additional ₩13.1 trillion ($11 billion) in the R&D and production of quantum dot-enhanced organic light-emitting diode (QD-OLED) panels:

The QD-OLED technology promises to simplify (i.e. lower the cost of) production of OLED-based televisions and monitors, as well as enabling wider color gamuts, which is something expected from next-generation content. Contemporary WOLED panels from LG Display use a blue or white (yellow + blue) OLED emitter stack, and a WRGB color filter system on top with a variety of additional layers behind, between, and ahead of them. By contrast, a QD-OLED panel uses an OLED emitter stack (some believe, with two emitting stacks) with a quantum dot RGB color filter (also called quantum dot color converter, or QDCC) system on top.

Today's OLED panels feature 22 layers, whereas a QD-OLED panel may cut the number to 13, which means fewer deposition stages, lower material and production costs, and, perhaps, better yield. The QD-OLED technology is still considered to be rather challenging as Samsung has to solve light management issues. Meanwhile, according to Display Supply Chain, one square meter of an QD-OLED panel will cost around $26, whereas one square meter of a contemporary OLED panel costs approximately $95.

Related:
Claims of Industrial Espionage Plague OLED Development
Bright Blue PHOLEDs Almost Ready for TV
SEL Develops 8K OLED Displays for Tablets and Laptops
VESA Expands DisplayHDR Specification to Include OLED and Emissive Displays


Original Submission

Related Stories

Claims of Industrial Espionage Plague OLED Development 13 comments

The Korea Times reports:

LG Display blasted Samsung Display on Sunday for allegedly stealing its display panel technology, following a prosecution decision to indict several Samsung employees involved in a case of alleged industrial spying.

The article says that an LG spokesman called it an "illegal and organized theft of our large organic light-emitting diodes (OLED) display panel technology committed by Samsung Display employees". It also mentions a response by Samsung:

Samsung Display also released a statement on Sunday, expressing regret over the accusation and urging LG Display to stop making slanderous accusations.

Over on OLED-Info.com it's mentioned that these are the latest events in a long running fight between the two companies:

with lawsuits launched by both sides and even accusations of stolen prototype TVs. In 2013 two two Korean arch-rivals agreed to resolve their OLED dispute ... But settlement negotiation failed, and it seems that the OLED wars are far from over.

Whilst OLED screens are used in many mobile devices, the technology is still a long way from widespread adoption in desktop and laptop monitors. Manufacturers seem to be focusing on high end OLED televisions first. For example, LG's 65" 4k curved OLED TV, the 65EC9700 is now shipping in the US and UK.

Bright Blue PHOLEDs Almost Ready for TV 7 comments

A new energy-efficient organic LED (OLED) that glows a deep blue is finally close to meeting the most stringent U.S. video display brightness requirements, researchers say.

OLEDs have enabled a new generation of bright, high-quality, low-cost, power-efficient, flexible, lightweight flat panel displays. Each pixel in an OLED display typically consists of red, green, and blue OLEDs that shine with different brightnesses to produce any desired color.

Phosphorescent OLEDs (PHOLEDs) use only one quarter the energy of conventional OLEDs. Green and red PHOLEDs are already used in smartphones and TVs, leading to longer battery lives and lower electricity bills, but developing the kind of bright deep blue PHOLEDs needed for video displays has proven challenging.

Now scientists have developed what they say are the brightest deep blue PHOLEDs reported so far, work sponsored by Universal Display Corporation and the U.S. Air Force. The researchers added their new lights nearly meet the most stringent requirements of the National Television Systems Committee (NTSC), the video standards used across most of the Americas.


Original Submission

SEL Develops 8K OLED Displays for Tablets and Laptops 13 comments

New 8K OLED Displays for Tablets and Laptops: 8.3 and 13.3 Inches

Semiconductor Energy Laboratory, a technology developer from Japan, has developed the industry's first 8.3 and 13.3-inch OLED displays featuring an 8K resolution. The monitors use crystalline oxide semiconductor technology and they are likely preliminary designs for future product commercialization. The company also recently showcased a bendable 8.6-inch OLED panel, potentially for a foldable tablet or smartphone.

Both of SEL's OLED panels featuring a 7680×4320 resolution use a color filter that relies on CAAC-IGZO (c-axis aligned crystalline indium gallium zinc oxide) material. The 8.3-inch 8K panel [boasts] a rather high pixel density of 1061 pixels per inch and has a refresh rate of 60 Hz. The larger 13.3-inch 8K panel features a pixel density of 662 PPI, but has a refresh rate of 120 Hz, which is particularly high for an OLED. The 8.3-inch 8Kp60 OLED was demonstrated last month at SEMICON Japan, whereas the 13.3-inch 8Kp120 OLED currently exists only in SEL's labs.


Original Submission

VESA Expands DisplayHDR Specification to Include OLED and Emissive Displays 11 comments

VESA Rolls Out Updated DisplayHDR Standard for OLED Displays: DisplayHDR True Black

This morning [January 3] the VESA is rolling out an update to the standard body's DisplayHDR monitor performance standard that's focused on expanding the specification to cover OLED displays. Dubbed DisplayHDR True Black, the new performance tiers to the DisplayHDR standard are intended for OLED and other emissive displays, laying out the levels of display performance that the association believes are appropriate for consumer HDR displays.

This update comes just over a year after the original DisplayHDR standard was launched. Intended to simplify the market for HDR displays, DisplayHDR sets a number of tiers of increasing performance, with each higher tier requiring better monitor technology and delivering a better HDR experience as a result. At the time of DisplayHDR's launch, the VESA opted to focus on LCDs, as these displays were already in the PC market and were what the association had the most experience with. The end result was the DisplayHDR 400, 600, and 1000 standards, which covered a range of monitor designs that essentially stretched from not-very-HDR to cutting-edge full array local dimming displays.

The DisplayHDR True Black update in turn adds two more tiers to the DisplayHDR standard: DisplayHDR 400 True Black, and DisplayHDR 500 True Black. Like the tiers for LCDs, the True Black tiers are divided up based on performance; though the gap isn't quite as big as with the LCD tiers. The end result is that displays reaching these standards, besides meeting the DisplayHDR specification's baseline requirements, can also hit a peak brightness of 400 nits and 500 nits respectively.

The need for separate tiers for OLEDs – and other future emissive technologies like microLEDs – is rooted in the fact that HDR itself is as much (or more) about dynamic range as it is absolute maximum and minimum brightness. While LCDs can offer the necessary contrast ratios with the right backlighting technology, they are still backlit displays, meaning that they can't quite hit black since they're always illuminated to a degree. OLEDs, on the other hands, can hit almost perfect black levels since the pixels can simply be turned off entirely – hence the True Black moniker – which means these displays need to be measured on a different scale. Conversely, while LCDs can sustain incredible 600+ nit brightness levels over the whole screen, OLED technology can only burst to these levels for short periods of time, so the maximum brightness offered by OLED displays isn't quite in sync either with HDR LCDs.

Extremely low minimum brightness seems more useful than blinding maximum brightness. Ergo, any display without "True Black" is junk.

Previously: VESA Announces DisplayHDR Specification


Original Submission

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  • (Score: 2) by Immerman on Thursday October 17 2019, @02:30PM (1 child)

    by Immerman (3985) on Thursday October 17 2019, @02:30PM (#908313)

    >one square meter of a contemporary OLED panel costs approximately $95.

    ... and thus we confirm that the cost of the screen itself is incidental to the price we pay at the store, and we shouldn't expect any price changes as a result of this. 1m^2 translates to a 1.53m(60" ) diagonal 16:9 screen. I don't know about any of you, but I've yet to see an OLED TV that size for under at least $1000, usually several.

    I guess it's good to know for sure that the price premium is a total ripoff?

    • (Score: 2) by takyon on Thursday October 17 2019, @03:27PM

      by takyon (881) <reversethis-{gro ... s} {ta} {noykat}> on Thursday October 17 2019, @03:27PM (#908344) Journal

      Not enough information there to make that conclusion. Displays come with different pixel densities. Are they telling us that a 60" 8K panel costs the same to make as a 60" 4K or 1080p panel?

      If you look at BOMs, you might be surprised at how little certain tech products cost to make. But they also have to be shipped around the world, given years of warranty/support, have a profit margin, etc. If Samsung prices their fancy new displays absurdly high for too long, Chinese brands will eventually eat their lunch.

      Finally, there are non-OLED technologies that are cheaper than OLED at the same size. I saw 60-inch 4K LED (LCD with LED backlight) for $500. So if QD-OLED is also cheaper to make than OLED, why won't it be priced accordingly?

      --
      [SIG] 10/28/2017: Soylent Upgrade v14 [soylentnews.org]
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