QD-OLED displays

Submitted by Ron Mertens on Wed, 03/20/2019 - 12:20

OLED displays are made from organic emitter materials - and are gaining in popularity as these next-generation displays offer excellent image quality and novel form factors.

Quantum Dots are tiny particles that have excellent photonic emission properties - and are used widely today in many LCD displays as the QD photoluminescence features enable the conversion of blue LED light to red and green light to create full-color displays that are better than white-backlit LCDs. QD particles can also be used to create emissive displays, in which the QDs themselves emit the light - read more about QD displays here.

QD-OLED - hybrid OLED and QD displays

QD-OLED displays are hybrid displays that use a combinattion of OLED emitters with QD color conversion layers and/or QD emitters.

Samsung QD-OLED

Samsung's QD Displays use blue OLED emitters and quantum-dots that convert the blue light to red and green light. Samsung's so-called QD-OLED displays have been in development for many years. Samsung Display aims to start QD-OLED panel production towards the end of 2021, and Samsung Electronics will reportedly launch the first QD-OLED products in early 2022.

QD-OLED stack scheme (DSCC, Oct-2018)



In its first-gen QD-OLED display, Samsung is using a fluorescent blue emitter (will hopefully change to a higher efficiency one in later generations) and ink-jet printed QDs.

TCL H-QLED

In March 2019 it was unveiled that China-based display maker TCL is developing a new hybrid display technology that uses a blue OLED emitter coupled with red and green QD emitters. All three emitter materials will be combined and printed using ink-jet printing technology. TCL calls this technology H-QLED and this could prove to be the technology of choice for TCL's future high-end emissive TV displays. For more information on TCL's H-QLED, click here.

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The latest QD OLED news:

Kateeva starts to ship 8K QD deposition systems to Samsung Display

According to reports, Kateeva started to ship quantum dots inkjet printing equipment to Samsung Display, for the production of QD-OLED panels. It appears as if Samsung is interested in producing 8K QD-OLEDs, and its current inkjet printing supplier, Semes, is not ready with printers that support 8K QD deposition.

Kateeva YIELDJet TFE system photo

Kateeva announced that it has designed a new system, called the YIELDjet Jarvis, that supports 8.5-Gen substrates and can indeed enable 8K TV deposition. Kateeva says that the Jarvis system has the ability to print using solvent-based RGB inks or nanoparticle inks with its proprietary ink recirculation system to ensure uniform particle distribution.

Read the full story Posted: Dec 03,2022

UBI: Samsung Display to produce QD-OLED monitor panels at its upcoming 8.7-Gen A5 line, targeting Apple as its main customer

According to UBI Research, Samsung Display has decided to produce QD-OLED panels at its upcoming 8.7-Gen A5 production line. The company IT display strategy will be to produce QD-OLED panels for monitor application (27-inch displays, at first) and tandem RGB panels for smaller IT displays (tablets, laptops).

Alienware AW3423DW photo

A 34-inch QD-OLED monitor (Dell Alienware)

Samsung is looking for design wins with Apple for both its display architectures - the larger QD-OLED panels for Apple's monitors and the smaller sized panels for its tablets.

Read the full story Posted: Nov 10,2022

DSCC: large-area OLED equipment sales to drop to zero in 2023, but resume in 2024 mostly for CSoT's inkjet printing panels

DSCC says that spending on equipment for the production of large area OLED panels (used in TVs and monitors) have decreased from $3 billion in 2019 to $2.05 billion in 2020, $1.47 billion in 2021 and will drop further to $1.42 billion in 2022.

LG B2 OLED TV photo

DSCC estimates that in 2023, the spending on such equipment will be zero. But OLED producers will resume buying large OLED equipment in 2024. Spending in 2024 will amount $2.01 billion, and in 2025 - $1.51 billion.

Read the full story Posted: Sep 26,2022

Samsung to increase its QD-OLED production capacity by year's end, will introduce 77-inch and 49-inch panels

Samsung Display says that it managed to increase its QD-OLED production yields to around 85% (up from 75% in April). The company plans to introduce new technologies and processes that will enable it to increase its production capacity from 30,000 monthly substrates to almost 40,000 at the same production line.

Samsung Display will so increase its QD-OLED production capacity by 30%. The main step to achieve this is the reduction of TAKT time (the time it takes to produce one panel).

Read the full story Posted: Aug 27,2022

OLED TVs take first place in Value Electronics' 2022 TV shootout

Esteemed US-based A/V retailer Value Electronics conducted its latest annual TV shootout, with very interesting results. It is not a big surprise, but OLED TV won the first places in both the 4K and 8K shootout.

Value Electronics 2022 TV shootout photo

In the 4K category, VE tested five TVs, out of which 3 were OLED TVs: The LG G2 OLED TV, Samsung S95B QD-OLED, Samsung QN95B (QD miniLED), Sony A95K QD-OLED and Sony's X95K mini-LED. The winner of this year's shootout was Sony's A95K QD-OLED.

Read the full story Posted: Aug 05,2022

Samsung reports its financial results for Q2 2022, with excellent earnings from SDC, confirms it is developing microdisplay technologies

Samsung Electronics reported its financial results for Q2 2022, with record second-quarter revenues of 77.2 trillion Won ($59 billion USD).

Samsung Display reported record second-quarter revenue and operating profit for mobile displays driven by solid demand from major customers. Samsung specifically mentions the growth in its laptop OLED business. Performance in the large panel business was weaker due to initial ramp-up costs of Samsung's QD-OLED displays, and a decline in LCD prices.

Read the full story Posted: Jul 28,2022

DSCC: the OLED market will grow 2% in 2022, led by strong demand for IT panels

DSCC estimates that the OLED market will increase 2% in 2022, to reach $42 billion. Revenues for smartphones, the leading OLED application, will actually decline by 4%, but this will be offset by increases in other applications.

AMOLED revenues by applications (2019-2022, DSCC)

In fact, some applications will experience very fast growth: OLED monitors (641% unit growth, 279% revenue growth), OLED laptops (64% units, 39% revenue) and automotive displays (73% units, 68% revenue).

Read the full story Posted: Jul 12,2022

Kateeva did not yet receive any QD-OLED inkjet printers orders from SDC, and may lose its patent portfolio to its latest investor

In 2020 Kateeva lost Samsung's QD-OLED inkjet printing inkjet printing contact to Korea's Semes, which resulted in massive layoffs including some of Kateeva's executives.

Kateeva YIELDJet TFE system photo

In January 2022 it was reported that Samsung has decided to change course, and rely on Kateeva's inkjet printers in its 2nd QD-OLED production line, as the Semes printers do not perform as well as Samsung hoped.

Read the full story Posted: Jul 07,2022