The notebook LCD screen is based on the liquid crystal material as the basic component. The liquid crystal material is filled between two parallel plates, and the arrangement of the molecules inside the liquid crystal material is changed by voltage to achieve the purpose of shading and transmitting light to display different shades. Scattered and uniform images, and as long as a ternary color filter layer is added between the two plates, color images can be displayed.

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  TFT is commonly used in notebook LCD screens. The TFT screen is a thin film transistor, the English full name (ThinFilmTransistor), is an active matrix type liquid crystal display. A special light tube is set on its back to actively control each independent pixel on the screen. This is also the origin of the so-called active matrix TFT. , This can greatly improve the response time, about 80 milliseconds, and STN is 200 milliseconds! It also improves the STN flicker (water ripple) blur phenomenon, effectively improving the ability to play dynamic pictures, compared with STN, TFT has excellent color saturation, reduction ability and higher contrast. It can still be seen very clearly in the sun, but the disadvantage is that it consumes more power and costs more.

  LED is the abbreviation of Light Emitting Diode.

  LED applications can be divided into two categories: one is LED single tube applications, including backlight LEDs, infrared LEDs, etc.; the other is LED displays. At present, there is still a certain gap between China and the international in LED basic material manufacturing, but As far as LED displays are concerned, China's design and production technology levels are basically synchronized with the international level.

  The LED display screen is a display device composed of light-emitting diodes. It adopts low-voltage scanning drive, which has the characteristics of low power consumption, long service life, low cost, high brightness, low failure, large viewing angle, and long visual distance.

  Compared with LCD displays, LED displays have more advantages in terms of brightness, power consumption, viewing angle, and refresh rate. The power consumption ratio of LED to LCD is about 10:1, and the higher refresh rate makes LED have better performance in video, can provide a wide viewing angle of 160°, and can display a variety of text, numbers, and color images And animation information, can also broadcast TV, video, VCD, DVD and other color video signals, and multiple display screens can also be broadcast online. The reaction speed of a single element of an organic LED display is 1000 times that of an LCD liquid crystal screen. It can also be illuminated under strong light and can adapt to a low temperature of minus 40 degrees. Using LED technology, a thinner, brighter, and clearer display than LCD can be manufactured, which has a wide range of application prospects.

  Simply put, LCD and LED are two different display technologies. LCD is a display screen composed of liquid crystals, while LED is a display screen composed of light-emitting diodes. Compared with LCD displays, LED displays have more advantages in brightness, power consumption, viewing angle and refresh rate.

  OLED: Organic Light Emitting Display, or organic light-emitting display, is a new emerging category in mobile phone LCD, known as the "dream display." OLED display technology is different from traditional LCD display methods. It does not require a backlight, and uses very thin organic material coatings and glass substrates. When current passes through, these organic materials will emit light. Moreover, the OLED display screen can be made lighter and thinner, has a larger viewing angle, and can significantly save power. However, although OLEDs with better technology will replace LCDs such as TFTs in the future, organic light-emitting display technology still has short-lived and difficult-to-large screens. 


What is the laptop LCD screen