Reports: Samsung Readying Hybrid QD-OLED TV Production Technology
Even as it prepares to launch the first consumer MicroLED display, Samsung is reportedly moving forward with production partners to produce TV display technology based on OLED emitters and QLED (quantum dot) photo luminescent filters, according to a recent report from the South Korean ETNews relayed through OLED-Info.
According to the report, Samsung Display is developing the technology along with Japan’s Canon Tokki and U.S.-based Kateeva, which are contributing test production and ink-jet-printing based equipment, respectively.
The process will leverage blue and yellow OLED emitter technology and quantum dots to convert the light to white and then apply quantum dot color filters on top of the white light to produce the additional red and green hues.
The complex process is expected to give Samsung the ability to produce OLED televisions that are less costly than its previous attempts at RGB OLED sets (pictured at top) that were abandoned after one year. The new process would eliminate the need for precise OLED patterning while adding a wider color gamut and brightness boost via photo-luminescent quantum dots. The technique is not dissimilar to LG’s WRGB OLED technology that uses white and yellow OLED emitters along with color filters to produce full color OLED panels that can be cost-effectively mass produced.
ETNews said Samsung Display recently signed a non-disclosure agreement with Canon Tokki to produce test production equipment. Samsung will exclusively receive from the company 6G OLED deposition equipment for mass production, with plans to develop 8th generation deposition equipment under the agreement.
ETNews further said that prototype QD-OLED panels already have been produced but the final production process still has some kinks to work out.
Samsung Display previously began collaborating with U.S.-based Kateeva on inkjet-printing technology to apply red and green quantum dot materials on a color filters, reports said, and Samsung Display has taken an ownership stake in Kateeva.
According to ETNews, Kateeva’s QLED inkjet printing system is expected to be installed at the site of Samsung Display’s Tangjung 8th generation LCD production line (L8), where the QD-OLED pilot line will be finalized in the second half of 2019.
Back at the CES 2018 in January, Samsung show its first 4K MicroLED modular television screen that is planned for introduction later this year. That technology offers an alternative to 4K OLED that is self-emitting, allows wide viewing angles and doesn’t have problems with image retention. However, due to dot-pitch measurements, screen sizes of 146-inches are necessary to get full 4K Ultra HD resolution in round one.
By Greg Tarr
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