IPC Subgroup
H01J 1/316 having an electric field parallel to the surface, e.g. thin film cathodes
Introduced: January 2000
Last revised: January 2006
Full Title
Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps > Main electrodes > Cold cathodes > having an electric field parallel to the surface, e.g. thin film cathodes
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS