Historical evolution of liquid crystal display principle

1888, Austrian botanist Linitz discovered a special mixed substance, which is between solid and liquid under normal circumstances. Not only that, it also has the dual characteristics of solid and liquid substances. At that time, this substance did not have a suitable name, so it was called liquid crystal (as the name suggests).

The application of liquid crystal in electronic display is 1888, and it will be 1968 in the next 80 years.

1968 in the chanov R&D center of RCA company (the invention company of radio and television) in the United States, engineers found that liquid crystal molecules would be affected by voltage, changing their molecular arrangement and deflecting the incident light. Using this principle, RCA invented the world's first screen using liquid crystal display, and applied for a national patent in the United States. In the following years, liquid crystal display technology was widely used in general electronic products, such as calculators, electronic watches, mobile phone screens, instruments used in hospitals or screens on digital cameras and so on.

Later, Sony and Sharp in Japan bought out the patents of RCA in the United States, improved LCD technology, and widely promoted it to various commercial fields.