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Guru3D.com » News » Samsung will show 'OLED' TV based on quantum dots

Samsung will show 'OLED' TV based on quantum dots

by Hilbert Hagedoorn on: 01/02/2019 09:17 AM | source: c\\\'t magazine | 23 comment(s)
Samsung will show 'OLED' TV based on quantum dots

Yes, that news title is a bit of a paradox eh? But is the claim really, perhaps OLED quality would describe it better. At the CES, the manufacturer wants to show a TV in which an organic luminescent layer based on quantum dots that provides high-color and high-contrast images.

Samsung apparently wants to rely again on OLEDs: The Korean display specialist uses a blue-glowing organic layer to stimulate quantum dots that produce red and green pixels from the blue light. The advantage over the previous LCD TVs with quantum dots: a viewpoint independent, high-contrast representation. The advantage over previous OLED TVs: extremely rich colors. In addition, the quantum dot OLED combination (QD-OLED) works in an energy-efficient way, as the complete light from the blue "OLED backlight" is used here for image generation. In LCDs, on the other hand, two-thirds of the light is blocked at the color filters and is therefore lost to the display.

The QD OLEDs also require a yellow reflector, which prevents the ambient light from exciting the quantum dots and emitting them, even though the underlying organic layer does not light up. The quantum dots for the red and green subpixels are printed in the pixel grid, while the organic luminescent layer is applied over a large area.

It consists of various organic layers, which can, however, be vapor-deposited cost-effectively and unstructured by means of CVD (Chemical Vapor Deposition) methods. As a result, no metal mask has to be precisely positioned and moved over the large TV substrates in production and, unlike the techniques used for smartphones, no expensive organic material is lost when the luminous layer is applied. Both of these factors led Samsung, among other things, to refrain from developing its 2013 OLED TV with a pixel matrix of red, green and blue organic light dots. 

  

Image: DigiTimes

  

According to Digitimes, Samsung wants to redesign a generation 8 LCD factory for OLED fab with oxide TFT substrates. Thus, the manufacturer could go relatively quickly into series production. For example, the first samples will be available by mid-2019 and then run 25,000 substrates per month - if six (perfect) TV screens are cut from each substrate, that would be 150,000 TVs per month. By 2020, capacity will be doubled. However, Samsung still has a few technical hurdles to overcome. Samsung plans to apply the organic material to Canon coating machines and print the quantum material on Kateeva machines. What will cost such a QD OLED TV in the end, is still open. The goal can only be to not be significantly above the current OLED prices.

Sources - Heise



Samsung will show 'OLED' TV based on quantum dots




« GDDR6 significantly more expensive than GDDR5 · Samsung will show 'OLED' TV based on quantum dots · December 2018 Guru3D Contest Winner Announcements »

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MaCk0y
Senior Member



Posts: 918
Joined: 2015-12-30

#5622921 Posted on: 01/02/2019 03:38 PM
Bought my 60" zt60 when they were on clearance in '13 or '14. 5 year square trade, but it's still going strong and looks better than nearly all 4k TV's(sansOLED) at the right viewing distance. Sports on a plasma is heaven.


I agree with sports content on Plasma. Do you have burn in?

HonoredShadow
Senior Member



Posts: 4280
Joined: 2007-05-27

#5622933 Posted on: 01/02/2019 04:21 PM
There is a difference between burn in and image retention.

350winder
Junior Member



Posts: 7
Joined: 2015-11-20

#5622938 Posted on: 01/02/2019 04:37 PM
How long have you had the plasma for?

Mine is 14 years old. Panasonic P50 something.

illrigger
Senior Member



Posts: 251
Joined: 2017-02-16

#5622969 Posted on: 01/02/2019 06:04 PM
The issue with plasmas is that they have a half-life of about 10 years - meaning they lost half their brightness approximately every 10 years. The change is so gradual that most people don't notice, but I know that my 2009 Panasonic P50 was getting pretty bad as far as viewability on bright summer days when it died a couple months back.

I replaced it with a 2017 LG OLED and man, I would never want to go back. Sharpness is the big difference - plasma tends to be a bit "soft" due to cell bleed, but the color vibrancy is much better, and HDR looks incredible (unlike on the LG 70" LCD in my HT, where it's barely notable, probably because of the lack of local dimming).

fry178
Senior Member



Posts: 1661
Joined: 2012-04-30

#5623004 Posted on: 01/02/2019 07:53 PM
Doubt the got sony to license them the tech,
so its maybe based on their phone screens.
But also shows how "not so good" their tvs are, or they wouldn't feel the need to improve on things like viewing angle..

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