Actual LED TVs? do they exist?

;)

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs 
Principal Consultant 

As Phil implied by his link, their are organic LEDs (OLED) display TVs on the market. Many at consumer friendly prices (

There's some difficulty with non-organic LEDs being SO hard to make three colors, but this projector-compatible item shows that there is some progress being made

=======================

** No.

** Yep - highly efficient white ones. ** No fooling ?

TV screens are intended for indoor use in subdued light - get yourself a Lux meter and see how the difference is HUGE like 1000s to 1.

Large LED screens have long existed and are used outdoors, as are LED traffic lights.

Horses for courses ...

..... Phil

You're incorrect, I found OLED.

Not very efficient when you block half the light with the LCD in front of it.

Do you mean "no kidding"?

Really? Do you shut the curtains when you watch TV? I don't. That's only needed for cheap shit projectors.

Difference between what and what?

Really? You can buy LEDs of red green and blue pretty easily.

What would those be used for? TV inside glasses right next to your eye? Otherwise I don't think your eye can detect 10,000 dpi.

Don't be so rude, I didn't know the term "OLED".

I got that too. How the f*ck did Duckduckgo intercept that?

That doesn't mean you can mass-produce a full array on a wafer, though.

Put a lens in front of it, and project to a screen. Kinda like a 16mm film projector, but the light is power-efficient and there's no moving parts.

You are rude, wasting people's time by posting questions without doing basic research.

You owe the Oracle three minutes of life.

Then shouldn't that acronym get longer, like the LGBTQP stuff?

I cannot look up something without knowing the name of it.

What would you like me to do for you for those three minutes sire?

Why not? those colours have been around for decades.

Ah, good idea. So I assume something similar but not as good is used on those phones that have "projectors" in them. I'd always assumed they'd be shit.

So how efficient are those things? They seemed to be making a lot of light for something that small, I assume they are way more efficient than say a normal household LED light?

Yes. The top-of-the line Sony and LG OLED 65-inch TVs are around $2000 to 3000. (LCD types this size are under $1000). LG also has some very good OLED 55-inchers at around $1500.

2020 was supposed to be the year when a lot new players (from China) enter the OLED TV market, and drive these prices down. But, haven't seen 'em yet!

This is a discussion group. "Google it" doesn't promote mucg discussion.

Is an OLED actually a diode?

Yes. I haven't kept up with the technological details for a decade, but

10 years ago they all contained a layer of metallic calcium for the electron donor. Certain passivation issues resulted. ;)

(An old boss of mine for whom I have a good deal of respect, Frank Libsch, was one of the inventors.)

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs 
Principal Consultant 

Some questions are worth discussing.

Silly provocative questions that can be trivially answered, aren't.

The forward v-i curve looks exponential-ish, but I haven't spotted any decent reverse bias curves. I doubt that worries people :)

CK's question wasn't provocative. He hadn't heard of OLEDs, so Phil told him.

What's wrong with that?