Jul 06, 2017

Korean news site DDaily posted an interesting article that states that LG Display is looking to replace the fluorescent OLED emitter used in its OLED TVs with a blue TADF emitter.

LG OLEDC7 photo

Following the introduction into LG's OLED TV production process, LG hopes to also use TADF materials in its small and medium OLED production. The report is a bit confusing, but it seems that LGD also aims to use its WOLED display in small and medium display formats - even for VR applications.

A blue TADF emitter will offer a much higher efficiency compared to the current fluorescent emitters. TADF materials are also easily made soluble - which means that it'll prove an easier material to transition to ink-jet printing.

Want to continue reading? Become a premium user now and get full access and more benefits!



Source: 

Comments

how can one translate the

how can one translate the report?

 

What about the lifetime of these new emitters?

Will they finally improve the lifespan of blue pixels?

LG oled

Doesn't make sense to me. As OLED use that kodak patent of white OLED back lit per pixel with colour filters over the top to make wrgb.

So they shouldn't have any issues with the blue colour subpixels. I guess what they are considering is using tadf emiters behind the Color filters? Or are they going to a true RGB OLED screen like a Samsung AMOLED??

?

OLEDs are made from organic light-emitting materials that emit light when electricity is applied. OLED displays are emissive - and do not require any backlight or filtering systems that are used in LCDs. As a result, OLEDs can be made flexible and transparent while providing the best images possible.

So I'm unsure where you get by saying otherwise. There is still a lifespan issue with oled pertaining to light in the blue wavelength. There are countless articles that speak to this. However just as plasma tv's had burn in issues in the beginning, as the application of that tech got older the problem became less prominent. 

LED displays are the ones you'll run into this issue most often but they can easily be repaired (not to confuse with led backlit lcd which do not suffer from this as they use white diode) OLED would require entire replacement.

 

There are no color filters,

There are no color filters, each pixel suposedly is able to reproducew pretty much the emtire color gamut the human eye can see, albeit yellows still do not look correct to me on any OLED or LCD tv

LG's W-OLED TVs actually do

LG's W-OLED TVs actually do use color filters as all the OLED sub-pixels are "white".

White sub-pixel

I thought they could not make a white oled so they use blue+yellow stack to create white? Then they have a color filter very much NOT the same as lcd.....

Yes, the white OLED is

Yes, the white OLED is actually made by both blue and yellow OLED emitters.

Kyulux - Hyperfluoresence OLED emittersKyulux - Hyperfluoresence OLED emitters