What is a liquid crystal?
Liquid crystal is the abbreviation for liquid crystal. It is a substance that resembles both a liquid (capable of flowing) and a crystal (possessing the optical properties of a crystal). The arrangement of liquid crystal molecules has a certain order, and under the action of an external electric field, the arrangement of liquid crystal molecules will change, thereby affecting their optical properties. So, as long as we control the arrangement of liquid crystal molecules appropriately, we can manipulate the liquid crystal molecules to allow some light to pass through while others are not, resulting in differences in transparency.
Liquid Crystal Display (LCD)
The LCD screen is composed of two parallel thin glass panels, with liquid crystals filled between them. The LCD panel itself does not emit light and needs to be illuminated by a backlight. The advantages of LCD screens are small size, light weight, large display area, stable image, no radiation, low energy consumption, and environmental protection.
TFT LCD screen
The abbreviation for Thin Film Transistor (TFT) is currently the most commonly used liquid crystal screen, belonging to the active matrix type liquid crystal screen. There is a special light tube on the back that can "actively" control each independent pixel on the screen, also known as the active matrix TFT. It has the characteristics of fast response time, large viewing angle, and high color saturation. Due to the memorable arrangement of TFT LCD screens, the current will not immediately return to its original state after it disappears, effectively improving the ability to play dynamic images.
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