ALTERNATING CURRENT-DRIVEN PLASMA ELEMENT FOR FLAT LAMP AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide an alternating current-driven plasma element for a flat lamp, and its manufacturing method, used for an LCD backlight, a flat light source for illumination, or the like, with an improved method of forming partition walls and an improved structure of a phosphor layer for the sake of facilitating manufacturing, curtailing manufacturing cost, and lowering a drive voltage for discharging.

SOLUTION: With the alternating current-driven plasma element consisting of a top plate and a bottom plate, the top plate 20 is structured of a front glass substrate 21 with a transparent electrode 22 of a thickness of several thousand Å (angstrom) and a protective film 24 laminated, and the bottom plate 25, made by cutting or molding, is structured of a number of glass partition walls 31 or the like with a given height, and discharge cells 30 separated by them with side faces and a bottom face coated with white color phosphors 29, as well as a metal electrode 28 deposited on the underside face of the rear glass substrate 26 on top of a rear glass substrate 26. After the top plate and the bottom plate are fused and bonded with a sealing material 27 so that the deposited face of the transparent electrode 22 of the top late and the protective film 24 is placed in opposition to a discharge cell forming part, air in the discharge cells 30 is made exhausted and discharge gas is injected and sealed in the discharge cells 30.

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