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There are only two major screen materials on the market: LCD (liquid crystal display) and OLED (organic light-emitting diode). OLED is generally considered to be more technologically advanced than LCD.
When we buy a TV, apart from the price, the first thing we must pay attention to is the picture quality. As the main body of TV, screen cost accounted for more than 60% of the whole machine. For a long time, the idea of "buying a TV and watching a screen first" has been widely spread among the people.
So, what kinds of TV screens are there? In the current TV market, the frequency of upgrading is getting faster and faster, and many new categories have been introduced. Like the OLED, QLED... Some new technologies are once again stimulating the desire of consumers.
At present, there are too many panel types and screen technology, not to mention ordinary consumers, even professional players are easy to confuse, today here to make a popular summary.
In fact, there are only two major screen materials on the market: LCD (liquid crystal display) and OLED (organic light-emitting diode). OLED is generally considered to be more advanced than LCD in technology. However, despite the strong popularity of OLED, LCD is still relatively abundant due to its limited price.
LCD
LCD is what we usually call liquid crystal display screen. It needs the support of backlight while displaying, and backlight through glass, color filters, optical diaphragm, substrate and direction film to produce polarized light, color and brightness will inevitably have a loss.
In LCD screen, TFT(Thin Film Transistor) deposits a thin film on a glass substrate next to a color filter to improve the quality of the image. The glass substrate on the top layer is next to the color filter, and the glass substrate on the bottom layer is embedded with transistors.
When the electric field changes through the transistor, the LCD screen molecules will be deflected to change the polarization of the light, and then the polarizer will be used to determine the light and shade state of the pixel.
At the same time, the color filters attached to the upper glass form the R, G and B primary colors contained in each LCD screen pixel, forming the picture displayed on the screen.
OLED
OLED, or Organic light-emitting Diode, does not require backlighting, unlike LCD screens. OLED is a kind of congenital surface light source technology, the light can be red, green, blue, white and other monochrome, and then achieve a full-color effect, belonging to a brand new luminous principle.
The quality of plasma, OLED and even earlier CRT technologies was praised mainly for their "self-illumination" properties. OLED technology allows individual pixels to be turned off and their brightness reset to zero. In theory, OLED contrast can be infinitely high. Therefore, it is impossible for OLED screen to leak light under black field, thus improving contrast and picture quality.
In addition, OLED technology does not need backlight support, so the LCD and backlight module are eliminated. The structure is very simple, and the body can be extremely thin, which is about 1/3 of the thickness of the traditional LED screen.OLED is also flexible and flexible, not just for TVS, but for smart devices in the future. Combined with the thin nature of OLED, the screen can be made as thin as a sheet of paper and can be bent and folded at will, something unthinkable in the LCD era.
Finally, whether it is LCD or OLED, as long as there is a meaning of it. As consumers, we don't have to get lost in a bunch of parameters. It's better to try more and go to the store to feel the real experience, so that we can choose the screen suitable for our own eyeballs.
When we buy a TV, apart from the price, the first thing we must pay attention to is the picture quality. As the main body of TV, screen cost accounted for more than 60% of the whole machine. For a long time, the idea of "buying a TV and watching a screen first" has been widely spread among the people.
So, what kinds of TV screens are there? In the current TV market, the frequency of upgrading is getting faster and faster, and many new categories have been introduced. Like the OLED, QLED... Some new technologies are once again stimulating the desire of consumers.
At present, there are too many panel types and screen technology, not to mention ordinary consumers, even professional players are easy to confuse, today here to make a popular summary.
In fact, there are only two major screen materials on the market: LCD (liquid crystal display) and OLED (organic light-emitting diode). OLED is generally considered to be more advanced than LCD in technology. However, despite the strong popularity of OLED, LCD is still relatively abundant due to its limited price.
LCD
LCD is what we usually call liquid crystal display screen. It needs the support of backlight while displaying, and backlight through glass, color filters, optical diaphragm, substrate and direction film to produce polarized light, color and brightness will inevitably have a loss.
In LCD screen, TFT(Thin Film Transistor) deposits a thin film on a glass substrate next to a color filter to improve the quality of the image. The glass substrate on the top layer is next to the color filter, and the glass substrate on the bottom layer is embedded with transistors.
When the electric field changes through the transistor, the LCD screen molecules will be deflected to change the polarization of the light, and then the polarizer will be used to determine the light and shade state of the pixel.
At the same time, the color filters attached to the upper glass form the R, G and B primary colors contained in each LCD screen pixel, forming the picture displayed on the screen.
OLED
OLED, or Organic light-emitting Diode, does not require backlighting, unlike LCD screens. OLED is a kind of congenital surface light source technology, the light can be red, green, blue, white and other monochrome, and then achieve a full-color effect, belonging to a brand new luminous principle.
The quality of plasma, OLED and even earlier CRT technologies was praised mainly for their "self-illumination" properties. OLED technology allows individual pixels to be turned off and their brightness reset to zero. In theory, OLED contrast can be infinitely high. Therefore, it is impossible for OLED screen to leak light under black field, thus improving contrast and picture quality.
In addition, OLED technology does not need backlight support, so the LCD and backlight module are eliminated. The structure is very simple, and the body can be extremely thin, which is about 1/3 of the thickness of the traditional LED screen.OLED is also flexible and flexible, not just for TVS, but for smart devices in the future. Combined with the thin nature of OLED, the screen can be made as thin as a sheet of paper and can be bent and folded at will, something unthinkable in the LCD era.
Finally, whether it is LCD or OLED, as long as there is a meaning of it. As consumers, we don't have to get lost in a bunch of parameters. It's better to try more and go to the store to feel the real experience, so that we can choose the screen suitable for our own eyeballs.
