Summary: Episode 029 Light emitting diodes, or LEDs, have been used in commercial products since the 1960s. They are popular light sources for public lighting and signage, and for displays in TV’s, cell phones, and other mobile devices.
Summary: Episode 029 Light emitting diodes, or LEDs, have been used in commercial products since the 1960s. They are popular light sources for public lighting and signage, and for displays in TV’s, cell phones, and other mobile devices.