What They Say
I found the time to catch up with the Nanosys-sponsored Display Show interview of Bob O’Brien (DSCC) by Brian Berkeley. Overall, it was, as you would expect from two industry veterans, comprehensive and authoritative but didn’t really release anything new, other than a confirmation by O’Brien that he believes that the LG Display Evo technology adds an additional green layer to add to the dual blue and red/green/yellow emitter layers. Industry rumours identify the supplier of the green material as UDC.
Separately, we have also heard that LG Display may have switched to blue emitter material from DuPont. Last summer, there were reports that new blue fluorescent material, made using deuterium substitution (for hydrogen) were on the way that might boost the lifetime of blue. (Of course, if they last longer, you might be able to drive them harder without increasing the lifetime). It seems that these materials from DuPont may now be in use with LG Display.
What We Think
So, the plot thickens! We continue to dig around for the ‘non-device’ solution that LG Display says may boost brightness by an additional 30%. I’m reminded of the philosophy of Soichiro Honda who liked to push his engineers into a real corner to get new ideas. “When a dog is cornered, it stops thinking like a dog” or words to that effect! The WOLED TV panel developers at LG Display will be coming under increasing pressure from miniLED and then QD-OLED (and maybe QNED) and microLED, so will need to keep pushing hard. As we have reported, there is a huge amount of work going on in OLED materials. (BR)
DSCC’s view of LG’s latest OLED Stack.
