An IMDB tomato
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Nowadays, if you have a demand for chasing dramas and movies, you usually use a tablet to watch it. But once I walked into the mall and started to choose TV, :why are all TV screens, why are there LCD, LED, OLED, ULED, QLED, SLED, GLED ... these look There are similar things with ED.
Are they all the same? And why should we use the models marked with different letters? How are they different? Let ’s simplify first, and now there are actually two types of TV display panels on the market.
One is the most commonly used liquid crystal LCD panel, which is also used in most TV products.
One is the current OLED panel, which is more common in the mobile phone field, but basically exclusive to high-end TVs.
Liquid Crystal Screen (LCD)
The first thing to talk about is the LCD screen. Its full name is Liquid Crystal Display, so the Chinese translation is the LCD screen.
In fact, the LCD screen is just a general term. In order to avoid confusing everyone at the beginning of the article, here we first introduce the principle of the common TFT-LCD panel. The LCD panel needs a backlight layer to emit white light, and in order to make the scattered light more directional and softer, it needs to pass through several films.
The next stop of the light is the color filter. After changing the direction, the light passes through the filter horizontally, and finally becomes horizontally polarized light. After passing through the horizontal polarizer, the corresponding color can be displayed.
If you do not want to display this color, as long as the liquid crystal does not change direction, the light cannot pass through the horizontal polarizer, so it will not be displayed.
Each sub-pixel on the TFT substrate has a transistor that can adjust the brightness of the light, then the brightness of the monochromatic light can be achieved, and the adjustment of the brightness of each pixel finally shows that we see a gorgeous picture on the TV .
Organic Light Emitting Diode (OLED)
Since the organic light-emitting layer can emit light by itself, the OLED does not need a backlight layer and a polarizing plate, and only needs to sandwich the organic light-emitting layer between two electrodes, and can emit light by meeting positive and negative electrons in the organic layer.
Here we simply add that OLED has two main development directions, one is passively driven PMOLED, and the other is AMOLED, which is the common OLED screen on our mobile phones.
What are the advantages of OLED?
More and more mobile devices are now using OLED panels, and in terms of color performance of LED TVs, viewing angle, refresh rate, response speed, etc., which is the future development direction of display devices.
ULED, QLED, SLED, GLED ...
Finally, it ’s your turn to the “ED” brothers. Do you think they all feel that they are a family of OLED extensions? In fact, they are still in the LCD screen family, so here are some of these “ED” "Bros.
The addition of partitioned light control technology allows the TV to achieve a good contrast between light and dark, so it performs well in HDR effects.
As for the SLED joint between Konka and LG Display, which means Slim (slim) and Swinging (dazzling), it means that the screen can be ultra-thin while still providing colorful display effects.
The last GLED screen was developed by Skyworth, using WRGB (white, red, green, blue) 4 colors 4K + technology, plus Skyworth's own image processing engine, to optimize the picture effect and improve the picture quality.
The future shows the direction of development
In addition to these seemingly different ED brothers, QD-OLED and Micro-LED are truly future-oriented display technologies.
This QD-LED is also different from QLED, the same is that Samsung mainly promotes and uses QD quantum dot technology.
Are they all the same? And why should we use the models marked with different letters? How are they different? Let ’s simplify first, and now there are actually two types of TV display panels on the market.
One is the most commonly used liquid crystal LCD panel, which is also used in most TV products.
One is the current OLED panel, which is more common in the mobile phone field, but basically exclusive to high-end TVs.
Liquid Crystal Screen (LCD)
The first thing to talk about is the LCD screen. Its full name is Liquid Crystal Display, so the Chinese translation is the LCD screen.
In fact, the LCD screen is just a general term. In order to avoid confusing everyone at the beginning of the article, here we first introduce the principle of the common TFT-LCD panel. The LCD panel needs a backlight layer to emit white light, and in order to make the scattered light more directional and softer, it needs to pass through several films.
The next stop of the light is the color filter. After changing the direction, the light passes through the filter horizontally, and finally becomes horizontally polarized light. After passing through the horizontal polarizer, the corresponding color can be displayed.
If you do not want to display this color, as long as the liquid crystal does not change direction, the light cannot pass through the horizontal polarizer, so it will not be displayed.
Each sub-pixel on the TFT substrate has a transistor that can adjust the brightness of the light, then the brightness of the monochromatic light can be achieved, and the adjustment of the brightness of each pixel finally shows that we see a gorgeous picture on the TV .
Organic Light Emitting Diode (OLED)
Since the organic light-emitting layer can emit light by itself, the OLED does not need a backlight layer and a polarizing plate, and only needs to sandwich the organic light-emitting layer between two electrodes, and can emit light by meeting positive and negative electrons in the organic layer.
Here we simply add that OLED has two main development directions, one is passively driven PMOLED, and the other is AMOLED, which is the common OLED screen on our mobile phones.
What are the advantages of OLED?
More and more mobile devices are now using OLED panels, and in terms of color performance of LED TVs, viewing angle, refresh rate, response speed, etc., which is the future development direction of display devices.
ULED, QLED, SLED, GLED ...
Finally, it ’s your turn to the “ED” brothers. Do you think they all feel that they are a family of OLED extensions? In fact, they are still in the LCD screen family, so here are some of these “ED” "Bros.
The addition of partitioned light control technology allows the TV to achieve a good contrast between light and dark, so it performs well in HDR effects.
As for the SLED joint between Konka and LG Display, which means Slim (slim) and Swinging (dazzling), it means that the screen can be ultra-thin while still providing colorful display effects.
The last GLED screen was developed by Skyworth, using WRGB (white, red, green, blue) 4 colors 4K + technology, plus Skyworth's own image processing engine, to optimize the picture effect and improve the picture quality.
The future shows the direction of development
In addition to these seemingly different ED brothers, QD-OLED and Micro-LED are truly future-oriented display technologies.
This QD-LED is also different from QLED, the same is that Samsung mainly promotes and uses QD quantum dot technology.
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