Why the “black color” in TV screen are not black?


It so disappointing when you watch movie in the dark and you can see that the black color of your TV it’s not the same black as the room that you are in, it’s looks more like a dark grey.

In: Technology

It’s because instead of the tv turning off pixels to show black, they are just showing the minimum possible light. You should look into oled panels. They are pricey but should give you what you’re looking for

Could be due to what’s called “setup”. It’s the way tv broadcast signals were established, with the darkest levels (maximum black) set to be at 7.5 IRE (units of brightness measurement) above the darkest possible levels. More here http://www.glennchan.info/articles/technical/setup/75IREsetup.html and here https://en.m.wikipedia.org/wiki/IRE_(unit)

One way to create television displays which is very common these days is an LCD, or liquid crystal display. There is a white light behind a series of tiny colored cells (red, green, and blue) which are blocked in varying amounts by a liquid crystal matrix in order to form the desired image.

The problem is that the liquid crystals can’t ever block *all* the light perfectly so they can’t reach a perfect black. The backlight always makes it through a little bit.

An older technology of a CRT which uses an electron beam to make the screen glow doesn’t have this problem but they are bulky, heavy, and use a good bit of power. Newer technology of OLED displays don’t have this problem but they are expensive and subject to wear that can “burn in” frequently displayed images. So it is all a trade off.

it depends on what kind of TV you have. if you want a “true black” get a plasma screen, however I have a plasma tv and have to turn the brightness up all the way bc it is so dark and shiny i can see my nasty ass reflection during night shots lol. if you have a newer type of tv (recent 10 years i’m guessing) you can raise the contrast levels in the settings.