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Main interest on OLED technology

HW R&D, small LED displays been used. No OLED yet

Hi Carol and other archive users!

Hi Carol and other archive users!

I have used OLEDs for small data displays.  I like them, but the cost is still too high for my applications.

Iron

Day 4 , useful , well presented OLED presentation

System/design engineer. Have not used OLEDs

Thank you, Carol!

Iron

@Alex - re. apps... interested in low power consumption displays (long battery life).

Iron

@Alex - have not used the AMOLEDs/OLEDs yet, but planning to...

Iron

@Alex - job function s/w, h/w and currently focus on standardization

Iron

Good to have access to recorded sessions...

Iron

Missed a class due to travel.

Iron

Thank you Carol.  Bye.

Iron

Thank you for today's presentation Carol

Iron

All right, folks, thanks for the interesting questions. Hope to see you all tomorrow!

Blogger

Transmittance is a percentage. Light out/ light in.

Blogger

TFT is in mobile and tablets.  Passive matrix is usually used only in black and white handheld meter screens.

Blogger

"@Carol, what display technology is best for reliable operation at -40? We design equipment for northern/arctic operation."

Wow that's pretty cold. I don't know the answer, since most specs say down to -40C. I don't know if the tests just stop there or that they actually fail below -40C. You would probably have to test them yourself. I would guess LEDs are fine. OLEDs might be different . I think the starting is the issue. Once they start they would warm up. Since you are right at the edge of the spec, you could pre-heat if that's really an issue.

Blogger

and how's the outlook of MOLD vs. III-V based LEDs?

Iron

Thanks you Carol for another very informative talk!

pricewise, is OLD pricier than normal LED? what about MOLD?

Iron

Thanks again for the info, hope I'll be able to use it soon

Iron

does TFT have applications in mobileb applications? cellphones, tablets?

Iron

Carol - operation at -40 deg C ?

Iron

@the glue - I sure wish I had a rhetorical answer.

Iron

I think @cpn just wanted their name in lights so they can write the 1/2 hour off as a business expense :) the question was rhetorical

Iron

@cpn - Helloooo.  Are you there?

Iron

Thanks Carol and Alex, time for me to go. See all tomorrow.

Iron

"QUESTION: Are current LED TV sets TFT ?"

Absolutely.

Blogger

OLEDs can degrade with exposure to moisture and oxygen. A high quality barrier material and edge seal is critical. On the other hand, if you are using the display, the heat drives out the moisture and oxygen. This is an ongoing issue in the industry and I believe they can make significant improvemens.

Blogger

@LevitonDave - Thanks, I'll look at EnOcean, too.

@cpn - Help us out here so we can help you.  Can you clarify for us?

Iron

@flared0ne - Hey, that was good.  I couldn't figure that one out, but got it.  But if they posted the question of how to get here, and they had to be here to post the question, then that's confusing too.  I suppose I still don't understand the question.

Iron

For alternatives to ZigBee Light Link you may want to look at EnOcean Alliance for wireless Lighting and HVAC control.

@cpn, I believe what he said was "Digi Key Continuing Education Center" (dkcec) chat page.

That's here, where we are now.

Platinum

FYI - I was searching for info last night on ZigBee Light Link, which was discussed yesterday.  The ZigBee Alliance has a webinar on it on May 16.  There's no DesignNews class that day.  www.zigbee.org

For outdoor display, I've seen examples where OLEDS can be hard to see, since they actually are dimmer to start with. LCD is probably your best bet.

Blogger

Hi jerry, not sure, just want to get on the answering page??

 

Iron

@cpn - What do you mean by "dkcdg page?"  I don't understand what that is.

Iron

THANKS CAROL AND ALEX. GREAT INFO.

LG and samsung each develop their proprietary OLED technologies. They each have many patents and jealously guars them. There are other players too. But these are the two big manufacturers.

Blogger

Can you answer some of the posts about enviormental issues for OLED

Iron

thanks Carol,very useful information

Iron

OLEDs may have burn in, in that the lifetime of the pixel may degrade and become dimmer. I'm sure it's an issue the manufacturer's are working hard on.

 

Blogger

thanks again for another good presentation.

Iron

thanks carol and alex...

Iron

how do I get on the dkcdg page?  New to the program

Iron

which us company supplies oled to samsung and lg or its ip technology

Iron

Thank you Carol and Alex.

Iron

Thanks Carol - useful overview of the spectrum of technologies.
Thanks Alex for facilitating.

Carol,

Can OLED displays suffer from a burn problem like CRTs?  That is, if some pixels are used all the time, will they start to dim compared to the less frequently used pixels?

Very informative!  THanks!

 

Iron

Thanks Carol, Alex, Design News and Digikey.

Iron
Thanks Carol and Alex for today's lecture
Iron

@Carol, on some OLED displays we use, we have noticed some type of pixel-burn-in (the display is static and does not change a lot). Is this normal for OLED displays? Thanks...

Iron

Thx Carol, Alex and Digi-Key!

Iron

Wrap up tomorrow -- Ok. Thanks, Carol.

Platinum

Same question as SumedhaHewa:

What is best for outdoor displays ( handheld) under day light, LCD, LED or OLED ?

Iron

thanks carol, great presentation. thanks alex. see you tomorrow

Iron

thank you Carol,

Iron

Carol, thank you for the great info on these technologies.

Gold

@Alex - send your eyes to me and I can perform some tests on them.

Iron

@alex - can still hear u

Iron

Thanks for the lecture today, Carol.

Iron

What is best for outdoor displays ( handheld) under day light, LCD, LED or OLED ?

what are your opinions on the prospects of flexible display in near future? 

Iron

How does temperature extreems affect performance?

Iron

Carol, what is the best way to get in touch with you?

Iron

Hi, Carol:

OLED requires constant voltage or constant current to drive?

What voltage turn on an OLED?
OLED light contain UV or infrared?

Q: What is the best way to drive LEDs for backlighting? PWM, analog?

Iron

need display to work in severe artic cold and deep south humidity and heat as well

Iron

Regarding environmental limitations - of both the individual device, as well as the display [assembly]

Iron

Life cycle is always important.

Iron

Definitely discuss environmental limitations [temp, temp cycle, humidity, etc] for AMOLED and OLEDs 

Iron

@Carol, what display technology is best for reliable operation at -40? We design equipment for northern/arctic operation.

Iron

@flaredOne - Yes, low current, it's a LED.

Iron
Nothing specific yet.
Iron

Slide 11 shows a 2-10 volt bias across the display stack. That's just an electric field, no significant current, right?

Platinum

advanced display that can be clearly visible under bright light conditions and can withstand extreme temperatures (-40C to 150C)

Iron

new technology / technical information and applications

Iron

for various families Power consumption?  Power consumption in future

Iron

Aren't (or weren't) there environmental survivability problems for OLEDs and AMOLEDs? Have those mostly been addressed?

Platinum

Just an interested student

Iron

interactive product / advertising displays

Iron

Looking at moving product from CCFL to LED backlight. LCDs with LED backlighting I have tested seem to have blue tint compared to CCFL ones.

Iron

no particular application in mind.

Iron

general interest in advanced displays, building my toolbox for future apps.

Iron

No application interest.  Just watching to continue the series.

Iron

What apps are you interested in for these advanced displays?

Blogger

On slide 9, cold white LED does not have UV.

From other source, some blue LED or white LED also has UV.

Does that depend on material for which has UV or not?

Which material absolutely has no UV?

Or which color LED absolutely has no UV?

Interested in displays

Iron

are some TVs black back light. is that better?

Iron

need OLED display for extreme bright situations and harsh outdoor enviornment

Iron

hello from SUNNY MIAMI.

On that IPS slide, is "transmittance" a percentage?? What measurement?

Platinum

current interest: general information

Iron

Interactive displays

Iron

have not used AMOLEDs or OLEDS... just learning.

Iron

HW Engineering Tech, we are using AMOLED with touch for system control.

 

Iron

Interest in displays for handheld/battery powered devices.

Iron

interactive displays as well

 

Iron

hello everyone...sorry I am late...

Iron

My use for the displays at this time will only be for troubleshooting modules.  Future use may be on the equipment itself.

Iron

primarily for interactive displays

Iron
Interested in learning what is being done with displays
Iron

Indoor lighting applications.

Iron

Display for mobile handheld unit

Iron

interested in super-low-power displays for mobile devices

Iron

Apps: eye glasses.

Iron
Hw/sw. Have not used yet. Not sure of near future
Iron

Interested in LED backlighting.

Iron

heads-up display glasses.

Platinum

Indicators and backlighting

Iron

QUESTION: Are current LED TV sets TFT ?

Iron
Have not used Oleds yet
Iron

(like at the fuel pump at the gas station, or with your iPhone).

Platinum

Electrical test engineer

Iron

Polarized sunglasses will essentially NEVER interact positively with LCDs, then...

Platinum

Job dis function: Sr Embed Des Eng.

Iron

@Jarnail  - Me too.  Also yesterday.  Just refresh your browser to stop it and sync up with the audio.

Iron

@Alex - No use of OLEDs yet.

Iron

r&d engineer, instrumentations manufacturer - OLEDs have been used for our displays

Iron

Job Title: Sr. Research Engr./Project Mgnr.

Iron

Sorry, just stepped in. Attentive. Primarily hardware design, project/proto/product.

Platinum

Where are you, Carol and Alex ?

Stuck in a loop

Iron

Job function: Mechanical Design Engineer... loving the EE world.

 

Iron

Used early OLED several years ago. Had problems with low life span. Hope technology has improved.

Iron

Embedded software

 

Iron

@Alex - HW/SW/FW.

Iron

Engineering technician, R&D, No OLEDs yet but will reserve the answer to whether or not I will use them until after todays lecture.

Iron

telecommunication sytems Engineer

Iron

Development Engineer interested in Automotive exterior lighting applications.

Gold

have not used AMOLED or OLEDs - not sure about future use yet

Iron

we purchase active matrix displays for applications

Iron

Director of Engineering - No OLED design yet but plan to use in midterm future

Feelin' loopy ?

F5 to reload and de-loop.

Iron

Hi Carol, Alex, and everyone.

Iron

Software, firmware and some hardware.  Haven't used OLEDs

Chief Dev. Engineer; not presently using OLEDs

Iron

Hardware & software design

Iron

hardware design engineer

Iron

Plan to use OLEDs.

Want to know how long they last.

Iron

R&D Lab Engineer @ NXP.

Iron

we use OLED in an advanced display for our guided wave radar level gauge

Iron

Sr. Embedded Software Engineer - Not currently plaiing on using AM-OLEDs

Materials & Process Development

Iron

Embedded Systems Design Engr. HW & SW. OLEDs not in the plan at present.

Iron

H/W & S/W & F/W.  Yes, use oLEDs, etc.

ANSWER: HAVE YOU USED AMOLEDs or OLEDs OR DO YOU PLAN TO?

Blogger

Engineering Manager - hardware/software/firmware/management - have not used any fancy LEDs

Iron

Mine too, stuck in a loop!

 

Iron

I have not used OLEDs.

Iron

hardware design engineer

Iron

@jfs1970 - mine did too.  Refreshed it twice

Iron

sustaining engineering for an instrumentation manufacturer

Iron

hardware eng, lpe

general interest

audio loop, do 'F5'

Program manager, Alex.

Iron

@Mark_K - Me too.  Also yesterday.  Just refresh your browser to stop it and sync up with the audio.

Iron

good morning everyone

 

Iron

Hi Carol, we have the same name.

Iron

Good afternoon Carol.

Iron

My audio is stuck in a loop.

Gold

Good afternoon, Alex.

Iron

good day everyone! nice to be back!

Iron

Hello and welcome back! 

Blogger

Hello, Carol/Buss Dev

Iron

@KentJ - no contradictions

We finally have some sun in lower Michigan - but heavy frost on the ground again this morning 

Iron

Good afternoon, folks.

 

Iron

Hi from sunny but blustery NoVA.

Iron

Sorry Steven.  Looks like I'm contradicting you but your message just came out first.

Iron

We need an official count-down timer [display]

Iron

Should be about 5 minutes to go

Iron

Lecture hasn't started yet, has it?

Gold

Hi all! (That works no matter what time zone you're in.)

Iron

@SumedhaHewa   I just tried it, audio works fine.

I missed yesterday , looks like I can not hear it today, anybody try y'day lec today?

Good day everyone

 

Iron

Good afternoon all from cold and cloudy Toronto

Iron

Do you have to attend/view every lecture, a single class or a weekly sequence?

They'll mail it when the Course is over.

 

Iron

it's nice in the Pacific NW as well :)

Good afternoon from the breadbasket of America!  Great day today!

Gold

Hi - What was the conclusion on the Starbucks card discussion the other day?

Very quiet indeed. 

Iron

Good afternon everyone. (morning in the west coast)

Iron

hmmmm, seems a bit quiet today

Iron

Good afternoon everyone

Iron

Be sure to click 'Today's Slide Deck' under Special Educational Materials above right to download the PowerPoint for today's session.

Blogger

Please join our Digi-Key Continuing Education Center LinkedIn Group at http://linkd.in/yoNGeY

Blogger

The streaming audio player will appear on this web page when the show starts at 2pm eastern today. Note however that some companies block live audio streams. If when the show starts you don't hear any audio, try refreshing your browser.

 

Blogger


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