Do you really understand LCD screens?

What is the LCD screen used for?

Liquid crystal display (LCD) is a type of display used in digital clocks and many portable computers. The LCD display uses two polarized materials with a liquid crystal solution between them. When an electric current passes through the liquid, it rearranges the crystals so that light cannot pass through them. Thus, each crystal acts as a shutter, both allowing light to pass through and blocking it. Liquid crystal display (LCD) technology information products are light, thin, short, and smallputers. The LCD display uses two polarized materials with a liquid crystal solution between them. When an electric current passes through the liquid, it rearranges the crystals so that light cannot pass through them. Thus, each crystal acts as a shutter, both allowing light to pass through and blocking it. Liquid crystal display (LCD) technology information products are light, thin, short, and small. The computer has a long history on the periphery of display products, of course, and is no exception. In terms of ease of carrying and handling, traditional display methods such as CRT, CRT, and LED display boards are limited by their large size, huge power consumption, and other factors, making them unable to meet the actual needs of users. The development of liquid crystal display technology is just in line with the current trend of information products; whether it is a right-angle display, low power consumption, small size, zero radiation, or other advantages, users can enjoy the best visual environment.

The birth of liquid crystals

To trace the origin of liquid crystal display, we must start with the birth of "liquid crystal". In 1888 AD, an Austrian botanist, Frederick Friedrich Reinitzer, discovered something special. He extracted a compound called helical toluate from plants. When he heated the compound, he accidentally found that it had two melting points at different temperatures. Its state is between the liquid and solid substances we are generally familiar with, somewhat similar to a soapy water gelatinous solution, but it has both liquid and crystalline properties in a certain temperature range. Also, because of its unique state, it was named "liquid crystal," which is the meaning of liquid crystalline substance. But although liquid crystals were discovered as early as 1888, it would take another 80 years for them to become useful in everyday objects.

In 1968, engineers at the Sanoff Research and Development Center of RCA (the company that invented radio and television) discovered that liquid crystal molecules were affected by voltage, changing their arrangement and deflecting incoming light. Using this principle, RCA invented the world's first screen using liquid crystal displays. After that, liquid crystal display technology is widely used in general electronic products, such as calculators, electronic watches, mobile phone screens, hospital instruments used (because of the consideration of radiation measurement), digital camera screens, and so on. Interestingly, liquid crystals predate vacuum or cathode ray tubes, but not much was known about the phenomenon until 1962, when the first book was published by a chemist at the RCA research group, Joe. Mr. Joe Castellano published a book to describe Like the image tube, both technologies were invented by RCA, an American company, but developed by Sony and Sharp, respectively, in Japan.