National Inventors' Day in Mexico

February 17 has been celebrated in Mexico since 1993, in memory of the birthday of Guillermo González Camarena, who created the trichromatic sequential field system for television (color television).

Guillermo González Camarena (Guadalajara, Jalisco; February 17, 1917- Las Lajas, Veracruz; April 18, 1965) was a Mexican scientist, researcher, engineer and inventor.

In 1952 he founded Channel 5 in Mexico City.

In 1940 he invented the trichromatic sequential field system (known as STSC), a system for transmitting color television. He also invented later, in the 1960s, a simpler system to generate color, the simplified two-color system. Gonzalez Camarena launched color television in Mexico years before the implementation of the NTSC standard.