This is the screen of the smartphone under a microscope ... and this is not a finger.
This is a special tool. like a pencil or rather
its sharpest tip ... thick less than a millimeter.
Just what would you understand how tiny are here
these points.
Let's dissect the screen smartphone and see
what are these points like from they get colorful
and juicy picture as well take a look right under working
display?!
The first thing to know before going deep
in the topic of displays - why they have multiplied so much.
Scrolling through the characteristics on sites or reviewing
card on the shop window, you can meet the most different
names of matrices starting from the usual IPS and AMOLED, ending
PLS, LTPS, POLED and more marketing Retina and eaea with them.
But this does not mean that all they are radically different
apart, no.
The fact is that manufacturers constantly invent something
and improve their screens.
Changes are not always significant, but market laws oblige
patent this whole thing come up with a new name
and promote under the guise of - "It's revolution Johnny."
In fact, everything is easier.
Smartphone screens can divide by just two types:
LCD and OLED.
The first is now the most popular.
If I go shopping and randomly point the finger
on the screens, then somewhere in 70% cases get on the LCD.
Pls, LTPS and of course everyone's favorite
Ips.
So, more to the point.
How do the LCD screens of smartphones and how do they look inside?
If you lift all the top display layers then in the very
bottom we will see a bright light - this is the backlight, from here
the creation of the picture begins.
And it seems that shines all basis, but it is an illusion.
Ray flow is created total a dozen diodes, plus or minus,
here they are, tiny.
And then the light hits on a reflective substrate,
which distributes it throughout the area.
Here you can see how much sags the screen brightness
if you tear this mirror, in quotes.
But the picture is still visible, so look what will
if you continue to remove layers at the working screen right
"On living".
He certainly did not last long.
Following are a few scattering light layers and immediately after
remove the first of them on the screen finally
brightness is lost from the diodes.
Only echoes are visible pictures at the very bottom
of them.
But what brings this very picture?
Main element in this The sandwich is on top,
over all filters - layer liquid crystals.
Here's how it looks under a microscope.
Green, blue and red strokes are subpixels.
Which due to filters miss only one
color spectrum.
Together three such strips make up that same pixel
small colored dot on your screen.
And the construction scheme is called as RGB, from English - red,
green and blue.
If you look even deeper in subpixel itself, then we
see such a scheme.
The main role is played here. LCD molecules that change
its construction under the action voltage and pass
more or less light.
Millions of molecules constantly move and due to this
changing pixel brightness.
Some become brighter others are darker, one gives out
more green the second is red.
All this happens every millisecond.
And so the picture is built, which you see before
by myself.
And the screens are called LCD or Liquid crystal display - liquid crystal
displays.
Well, with the first, the most popular type sorted out.
But the most attentive of you must have noticed that
pixel at the beginning of the video the grid was completely different.
And shone strange - were she has some black islets.
It was a screen of the second type, based on organic
LEDs - OLED.
AMOLED applies to him, SuperAMOLED, POLED and other derivatives
from this type of matrix.
Unlike LCD, where the light created by backlight diodes,
here it radiates by itself subpixels, those multi-colored
points.
If there was such a genre as horror movie for smartphones
then probably this video would claim an oscar.
Now you see how the fishing line broken screen
IPhone 10, more precisely, the display separated from the protective
glass
A terrible sight.
But it needs to be seen, because that the first differences are immediately clear
OLED from LCD.
Here it is, the display itself ... That's it!
This one, not afraid of it the words are leaf, and there is the whole
matrix.
The difference for a long time to search is not need to.
As you can see - there are no diodes backlights and multiple layers.
The display is thinner and at the same time pretty good bends.
Moreover, despite all the bullying here
so shabby it can be connected back
and it will work after all.
The more interesting to look inside and understand how to build
a picture in such a matrix ..
Organic LED consists of several layers
polymers that are under action voltage capable
emit light.
This is if very simplistic.
And then the scheme is about is the same.
Only one color pass through filters and creation
single point image from subpixels.
And that's what it gives.
Unlike LCD, where necessary constantly energize
even on dark pixels, in OLED, you can simply turn them off.
That's where these black holes come from under the microscope.
Pixels just don't burn.
So do not consume energy.
Also due to this they give a picture of this
black and high contrast
Even so close look what a clear
transition from bright color fields in the dark.
That's why when I test autonomy of smartphones
with IPS and Super Amoled, the first can hold out for 7 hours and
the second is all 11.
Same battery, diagonal, iron, brightness about
- and time is different, because that the screen is more economical.
And for the same reason, when IPhones switched to OLED, all
indignant - "where is the black topic, damn it?
And it seems to be still outraged because in the new dozens
no ... correct it, if I am mistaken.
This, by the way, is in the topic "It's revolution Johnny. "
Although it is already a thought for an individual video.
Now, in the story with the displays, I will not put the point.
Suddenly want to know more about the features of some
specific matrix and figure out that she was fastened this,
because of what she got give a special name
know in the comments.
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In the meantime, look how they work mobile cameras with this
The topic we have already figured out.
See you later!
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