Download "Como funciona TV de tubo, LCD, Plasma, LED e OLED"

Please wait. We're preparing links for easy ad-free video watching and downloading.

Next video: Как пользоваться MyASUS?

1:05

Tubo de raios catódicos

6:11

Tela de plasma

10:16

Diodo orgânico emissor de luz

Как пользоваться MyASUS?

Как пользоваться MyASUS?

Channel: ASUS CIS

tv em câmera lenta

como funciona tv

televisão

televisor

lcd

led

oled

tv de tubo

tv de raios catódicos

crt

lcd led

plasma

tv de plasma

como funciona televisão

eletrônica

pixels

zoom tv

como funciona tv led

lcd vs led

led vs oled

diferença tv

diferença tv led

integrando conhecimento

diferença plasma lcd

00:00:00

Have you ever wondered how the

00:00:02

image is formed on your TV and a notebook, how

00:00:05

old tube TVs,

00:00:07

LCD TVs, LED plasma TVs and modern

00:00:11

LED TVs work, but first we should do this by

00:00:15

inviting you to subscribe to our

00:00:17

new news channel about science and

00:00:19

technology or integrating knowledge

00:00:21

news subscribe stay up to date whenever

00:00:26

you are watching you have the

00:00:28

illusion of seeing an object in motion in

00:00:30

fact you version several

00:00:32

still images presented very quickly a

00:00:37

film usually presents 24 images

00:00:40

per second

00:00:41

this is called of 24 frames per second

00:00:43

which is the frequency at which the images

00:00:44

shown

00:00:46

this is so fast that to your eyes it

00:00:48

looks like a moving object

00:00:50

other videos or games still use 30

00:00:53

or 60 frames per second or even more

00:00:55

but televisions cannot

00:00:58

instantly switch to the next image

00:01:00

they have a transition time between

00:01:02

images let's see this effect is an

00:01:06

old cathode ray tube TV

00:01:09

when we see an old tube TV

00:01:11

appearing on another television we notice

00:01:13

an image effect running from top

00:01:15

to bottom

00:01:16

this is because the speed of capture from the

00:01:18

camera that is filming is out of

00:01:20

sync with the refresh rate of the

00:01:22

old TV, images from tube TVs are

00:01:26

built from top to bottom line by

00:01:28

line several times per second

00:01:30

in Brazil 30 times per second in

00:01:32

fact it showed 60 half images

00:01:35

per second

00:01:36

formed by the odd or even lines

00:01:37

of the entire image week with a

00:01:41

capture rate of 25 frames per second we see

00:01:44

the image being projected several times

00:01:45

seek to increase but the camera capture rate

00:01:49

to 1,600 frames per second

00:01:52

we notice that there is only one line active

00:01:54

pixel at every moment we are the ones who

00:01:56

assemble the complete image our head

00:01:59

when we put it even more in slow motion

00:02:01

increasing the camera capture rate

00:02:03

to 2,500 frames per second

00:02:05

we can see each block being

00:02:07

built from top to bottom line by

00:02:09

line with a camera extremely fast

00:02:13

we can see that images are

00:02:15

built not only from top to bottom

00:02:16

but also from left to right at

00:02:19

over 100 thousand frames per second

00:02:21

we can see this happening perfectly

00:02:30

now let's take a look at how the

00:02:32

image is projected and how the

00:02:34

colors at the base of the tube to three

00:02:37

electron guns one for each color red green

00:02:39

and blue

00:02:40

these colors combined can make up

00:02:42

any body you see on the screen

00:02:43

these gains fired beams of

00:02:45

electrons on the monitor screen is covered

00:02:48

internally by posts a type of

00:02:50

posts for each color when the electrons

00:02:53

collide with this chemical layer they

00:02:55

emit light with the color of the respective

00:02:57

phosphor

00:02:58

the stronger the beam emitted the

00:03:00

stronger the light

00:03:02

these fish are reflected by

00:03:05

magnetic and electromagnetic electric fields

00:03:07

capacitors around the tube

00:03:09

in this way they can be directed

00:03:11

point-to-point thus forming an image

00:03:14

of how the image is formed on

00:03:17

modern televisions on an LCD TV which means

00:03:21

liquid crystal display it is not just a

00:03:23

line of pixels that is updated that

00:03:24

stays lit it is the entire image in this way the

00:03:27

entire image remains projected

00:03:29

while updated from top to bottom

00:03:31

an lcd tv and has a backlight

00:03:34

generated generally by

00:03:35

cold cathode fluorescent lamps and has

00:03:38

an lcd screen in front of the lcd screen

00:03:40

where the images and colors are formed

00:03:43

it is formed by two glass plates

00:03:45

with liquid crystal between them, the

00:03:48

glass plates have parallel microscopic grooves

00:03:51

and one glass plate is

00:03:53

positioned 90° to the other, the light from a

00:03:56

lamp behind the monitor passes through the

00:03:58

polarizer propagating only in one

00:04:00

direction and through the first plate

00:04:02

glass,

00:04:03

when passing through the liquid crystal, the plane

00:04:05

of polarized light undergoes a deviation of 90

00:04:07

degrees

00:04:08

through the second glass plate and

00:04:10

another colonizer

00:04:11

with his own polarization direction

00:04:13

declared first, in this way we see the TV

00:04:16

illuminated

00:04:17

when the voltage is applied between the

00:04:19

plates, thus generating a electric field

00:04:22

the liquid crystal molecules

00:04:23

oriented themselves in the direction of this electric field,

00:04:25

no longer deflecting the polarized light, the

00:04:28

light does not pass through the second polarizer

00:04:30

and what we saw is the TV turned off,

00:04:33

in this way each pixel can be turned on and

00:04:36

off electronically using

00:04:37

liquid crystals to rotate the polarized light,

00:04:41

in addition, changing the level of voltage

00:04:43

applied between the plates,

00:04:44

the test also the intensity of the light that

00:04:46

passes through each pixel, each pixel is formed

00:04:53

by three suffixes to red, green, blue,

00:04:56

they are simply small

00:04:58

colored plates that allow each color to pass through,

00:05:00

as already We saw that this composition can create

00:05:03

the illusion of millions of colors just

00:05:05

by changing the intensity of light emitted

00:05:07

by each pixel with all lights on, we have the

00:05:13

white light decreasing the intensity of the

00:05:15

light we go through gray until we reach

00:05:17

black,

00:05:18

a negative point of the LCD TV is that it

00:05:21

can't reproduce

00:05:22

true black because for that to happen it would have to

00:05:24

be completely opaque, which doesn't

00:05:26

happen because the backlight is

00:05:28

always on,

00:05:29

so whenever you see a white screen

00:05:31

you're seeing millions of blue,

00:05:33

green and red lights,

00:05:35

each pixel so small that you only

00:05:37

notice the composition of the general light, which is as

00:05:39

white as each pixel, formed by

00:05:42

three supic skies.

00:05:55

representing a color on the

00:05:58

LCD screen, this individual polarization

00:06:00

of each suffix is done from top to

00:06:02

bottom, one line at a time, but this

00:06:05

happens so quickly that we don't even notice it,

00:06:11

and how a plasma TV works, you

00:06:14

know the three states, matter, solid,

00:06:17

liquid, gas,

00:06:18

but it is still the fourth state called

00:06:19

plasma and other states but that is

00:06:21

a topic with another video

00:06:24

when we grow a solid and it turns into a

00:06:26

liquid if we grow more the liquid villegas if

00:06:29

we continue to heat gas

00:06:30

the molecules and his hands break

00:06:32

releasing some of their electrons that

00:06:34

can so move freely we

00:06:37

then have plasma

00:06:38

when the atoms are disintegrated in this

00:06:41

way they were positively charged particles

00:06:43

called ions the mixture

00:06:46

of positively charged ions

00:06:48

negatively charged electrons a

00:06:50

plasma turns it into a kind of

00:06:52

hot soup that will lead to electricity

00:06:55

very easily when When we grow the gas

00:06:59

we are supplying energy this process

00:07:01

can also be achieved by conducting

00:07:03

electricity and in the gas thus obtaining the

00:07:05

so-called cold plasmas which is what we have

00:07:08

in fluorescent lamps and in

00:07:10

plasma TVs on the screen of a plasma TV there are

00:07:13

two glass plates between them to

00:07:16

millions of small cells with

00:07:17

xenon gas and none, as if they were millions of

00:07:20

microscopic lamps, each of these

00:07:22

micro lamps can be individually

00:07:24

turned on or off very quickly by

00:07:27

applying attention, circulating

00:07:29

a current and organizing the lamp,

00:07:31

thus allowing ultraviolet light, as

00:07:34

in tube tv the

00:07:36

ultraviolet light hits a

00:07:38

phosphor layer inside a

00:07:40

supershow cell transforming the invisible light into

00:07:41

a red, green or blue light,

00:07:44

depending on the type of phosphor, each of these

00:07:47

ufics can be turned on and off

00:07:50

individually by an

00:07:51

electronic circuit and three of these south pics

00:07:53

red green blue forms a pixel

00:07:56

this means that iron TVs

00:07:59

have greater brightness contrast

00:08:01

compared to LCD ones,

00:08:02

they can also turn pixels on and off

00:08:04

thousands of times faster than

00:08:06

LCD ones, allowing for more

00:08:09

defined images and - it says, especially focused

00:08:11

for moving images such as

00:08:13

action films or games,

00:08:15

the points against which they consume more

00:08:18

energy and are more fragile and images that

00:08:21

remain on the screen for a long time can

00:08:22

burn that point on the screen or even

00:08:25

over time the pixel can burn out and

00:08:26

something stops working recurring

00:08:28

in these televisions

00:08:30

[Music]

00:08:32

let's see now how the LED TV works

00:08:33

while in the old tube TVs

00:08:37

there were three electron cannons

00:08:38

projecting the plasma image small

00:08:41

individual cells with plasma and

00:08:43

nadielle cdru fluorescent lamps

00:08:44

illuminating the entire panel

00:08:46

currently the TVs most modern ones are

00:08:48

lit by LEDs,

00:08:50

a light one consists of a

00:08:52

pn injunction semiconductor diode with some

00:08:55

chemical components added, when

00:08:57

energized, the black electrons from one side

00:08:59

of the junction to the other,

00:09:00

emitting light and heat, basically

00:09:04

led monitors and even the newer ones

00:09:06

called dots Quantum LEDs are

00:09:09

the same liquid crystal LCD monitors

00:09:11

with the background fluorescent lamp

00:09:14

replaced by LEDs and they can be of

00:09:16

three types TV is LED with

00:09:20

white LED lighting on the side of the panel are very

00:09:23

thin and generally used on

00:09:25

laptop screens TV direct led

00:09:29

white led lighting spread behind the panel

00:09:32

it has better contrast and definition

00:09:34

than sad led and rgb led tvs that

00:09:38

use red green blue leds

00:09:40

spread behind the panel it is the best

00:09:42

among the three with a much higher definition

00:09:45

as you must have As you can see, LED TVs and

00:09:47

monitors do not have an LED for

00:09:50

each pixel, this is because the LED is very

00:09:52

large, we

00:09:53

only see this on large

00:09:54

external panels in the streets and stores compared

00:09:58

to traditional LCD TVs, the LED ones

00:10:00

have a contrasting black level.

00:10:03

This is much better because you can control the

00:10:05

lighting by region by turning

00:10:07

the LEDs on and off, in addition to these actors,

00:10:11

LED TVs consume much less energy

00:10:13

than the previous ones,

00:10:14

well now let's move on to modern

00:10:17

OLED TVs, OLED or organic medium is similar

00:10:22

to LED. normal, but instead of the

00:10:24

semiconductor junction to pm it uses an

00:10:26

organic film containing carbon to emit

00:10:28

light similar to plasma TVs and

00:10:32

unlike LCD and LED TVs where

00:10:34

the entire illuminated background on OLED TVs each

00:10:37

pixel is high and illuminated

00:10:39

depending the level of voltage applied

00:10:41

to the LED while on the LED TV the

00:10:44

lighting of each region belonging to

00:10:46

an LED could be controlled.

00:10:48

The OLED TV allows you to control the

00:10:50

lighting of each pixel individually

00:10:52

by turning each one on and off,

00:10:55

meaning it does not need light background

00:10:57

this means that when we see black

00:10:59

on the screen here

00:11:01

the pixels are all off being

00:11:03

true black

00:11:04

this also means a much

00:11:06

sharper image and with this we can

00:11:10

understand the operation of almost all

00:11:12

televisions that exist

00:11:15

now when you look at a

00:11:17

computer screen a television, be it an

00:11:19

LCD tube and LED or LED plasma,

00:11:22

you will know what is happening

00:11:23

behind it so that the image you

00:11:25

are seeing is formed, from the formation and projection

00:11:27

of light on the screen to the formation of colors

00:11:30

and images,

00:11:31

if you liked the video to follow

00:11:33

more about science like and subscribe

00:11:35

to the channel we have weekly videos

00:11:37

click and also on the cinema to receive

00:11:39

notifications of new videos

00:11:41

don't forget to share with

00:11:42

your friends our country needs more

00:11:44

efficiency

00:11:45

until next time

00:11:47

[Music]

Description:

Entenda como se forma a imagem na TV de tubo, plasma, LCD, LED e OLED. Errata: em 5:48, o correto é 2.359.296 pixels e não 3.359.296 pixels. Referências: https://sites.google.com/view/como-as-tvs-funcionam ------ Magdiel Schmitz, Dr. em engenharia elétrica (UFSM). Currículo Lattes: http://lattes.cnpq.br/0915695672216496 Instagram pessoal: https://www.instagram.com/magdielschmitz Twitter pessoal: https://twitter.com/magdielschmitz Instagram do canal: https://www.instagram.com/integrandoconhecimento Twitter do canal: https://twitter.com/IntConhecimento

Preparing download options

Popular

HD video

Only sound

All

* — If the video is playing in a new tab, go to it, then right-click on the video and select "Save video as..."

** — Link intended for online playback in specialized players

Questions about downloading video

How can I download "Como funciona TV de tubo, LCD, Plasma, LED e OLED" video?

http://unidownloader.com/ website is the best way to download a video or a separate audio track if you want to do without installing programs and extensions.
The UDL Helper extension is a convenient button that is seamlessly integrated into YouTube, Instagram and OK.ru sites for fast content download.
UDL Client program (for Windows) is the most powerful solution that supports more than 900 websites, social networks and video hosting sites, as well as any video quality that is available in the source.
UDL Lite is a really convenient way to access a website from your mobile device. With its help, you can easily download videos directly to your smartphone.

Which format of "Como funciona TV de tubo, LCD, Plasma, LED e OLED" video should I choose?

The best quality formats are FullHD (1080p), 2K (1440p), 4K (2160p) and 8K (4320p). The higher the resolution of your screen, the higher the video quality should be. However, there are other factors to consider: download speed, amount of free space, and device performance during playback.

Why does my computer freeze when loading a "Como funciona TV de tubo, LCD, Plasma, LED e OLED" video?

The browser/computer should not freeze completely! If this happens, please report it with a link to the video. Sometimes videos cannot be downloaded directly in a suitable format, so we have added the ability to convert the file to the desired format. In some cases, this process may actively use computer resources.

How can I download "Como funciona TV de tubo, LCD, Plasma, LED e OLED" video to my phone?

You can download a video to your smartphone using the website or the PWA application UDL Lite. It is also possible to send a download link via QR code using the UDL Helper extension.

How can I download an audio track (music) to MP3 "Como funciona TV de tubo, LCD, Plasma, LED e OLED"?

The most convenient way is to use the UDL Client program, which supports converting video to MP3 format. In some cases, MP3 can also be downloaded through the UDL Helper extension.

How can I save a frame from a video "Como funciona TV de tubo, LCD, Plasma, LED e OLED"?

This feature is available in the UDL Helper extension. Make sure that "Show the video snapshot button" is checked in the settings. A camera icon should appear in the lower right corner of the player to the left of the "Settings" icon. When you click on it, the current frame from the video will be saved to your computer in JPEG format.

What's the price of all this stuff?

It costs nothing. Our services are absolutely free for all users. There are no PRO subscriptions, no restrictions on the number or maximum length of downloaded videos.