Mercury-free flat fluorescent lamps

Abstract

The present invention relates to a mercury-free flat fluorescent lamp, which is comprised with two separated electric circuits in electron flow that are a driving electric circuit on a base plate glass and an internal electric circuit formed in a Xe chamber. The internal electric circuit receives the electric energy from the driving electric circuit by means of the surface-bound-charges that form with polarized charges in surface volume of insulator particles and the ionized Xe+ and e− charges in the Xe chamber, which are induced by the alternated electric field from electrodes in the driving electric circuit. The internal electric circuit has electron flow between separately accumulated charges of Xe+ and e− on the insulator particles in the Xe chamber; and Xe discharge is generated by the moving electrons in the Xe chamber. Phosphor screens coated on inner wall of the Xe chamber emit photoluminescence under irradiation of the vacuum ultraviolet lights emitted from Xe discharge in the Xe chamber. By optimization of the individual items involved in operation, a practical mercury-free flat fluorescent lamp has been invented.

Dependencies are inferred from the claim text.