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John Siracusa

πŸ‘€ Speaker
10649 total appearances

Appearances Over Time

Podcast Appearances

Accidental Tech Podcast
676: A Sternly Worded Instruction

The the market has been focused on, you know, sort of competition between two different ways of making good TVs divided by whether or not you can turn on individual pixels.

Accidental Tech Podcast
676: A Sternly Worded Instruction

Every time someone talks to me about TV online, I always say that I demand per pixel lighting control.

Accidental Tech Podcast
676: A Sternly Worded Instruction

That is obviously the technically best way to form a nice picture, which is that you can turn individual pixels on and off.

Accidental Tech Podcast
676: A Sternly Worded Instruction

And you're thinking, doesn't every TV do that?

Accidental Tech Podcast
676: A Sternly Worded Instruction

Doesn't every monitor do that?

Accidental Tech Podcast
676: A Sternly Worded Instruction

What are you even talking about?

Accidental Tech Podcast
676: A Sternly Worded Instruction

Well, lots of televisions and lots of monitors to make a single pixel turn on have to turn on a huge amount of light behind that single pixel.

Accidental Tech Podcast
676: A Sternly Worded Instruction

Studio display turns on the entire backlight.

Accidental Tech Podcast
676: A Sternly Worded Instruction

If you just want one pixel to be turned on.

Accidental Tech Podcast
676: A Sternly Worded Instruction

All the other pixels are trying mightily to prevent the backlight from going through, but there is just one giant backlight.

Accidental Tech Podcast
676: A Sternly Worded Instruction

And if you make a black screen with a white pixel in the middle of it, the entire backlight is on.

Accidental Tech Podcast
676: A Sternly Worded Instruction

And the screen is trying to not let you see any of it except for that one white pixel.

Accidental Tech Podcast
676: A Sternly Worded Instruction

That's very difficult.

Accidental Tech Podcast
676: A Sternly Worded Instruction

And various technologies for stopping you from seeing that entire backlight have been tried over the years, but they can't stop all the light, which is why if you take the studio display, put it in a pitch black room and make the studio display show a black screen, it will light up your room.

Accidental Tech Podcast
676: A Sternly Worded Instruction

Because that's just the way it is.

Accidental Tech Podcast
676: A Sternly Worded Instruction

And then as you go down the spectrum, okay, let's break up the backlight into a bunch of little pieces.

Accidental Tech Podcast
676: A Sternly Worded Instruction

And then we'll just turn on the little pieces that are behind things.

Accidental Tech Podcast
676: A Sternly Worded Instruction

So if we have a single white pixel in the middle of a black screen, we'll just turn on like a one inch by one inch square behind that pixel.

Accidental Tech Podcast
676: A Sternly Worded Instruction

but then you get a little glowing region around the one-inch pixel.

Accidental Tech Podcast
676: A Sternly Worded Instruction

People refer to that as bloom.