Answer:
An OLED is an abbreviation for Organic Light-Emitting Diodes.
Explanation:
It is basically a type of light-emitting diode or LED that has an emissive electroluminescent layer that acts as a film of organic compounds and is responsible for emitting light when an electric current is applied.
I’m not 100% sure but I think it’s drop patterns
The printing is from a stone (lithographic limestone) or a metal plate with a smooth surface. It was invented in 1796 by German author and actor Alois Senefelder as a cheap method of publishing theatrical works.Lithography can be used to print text or artwork onto paper or other suitable material.
