Thin, durable electroluminescent lamp
A high brightness, durable, thick film electroluminescent lamp includes a base having a thin layer of PET on a release layer and a transparent front electrode of ITO particles in a resin, a transparent rear electrode, and a reflective layer overlying the transparent rear electrode.
1 . A durable, thin, thick-film, inorganic, electroluminescent lamp comprising:
a transparent front electrode;
a phosphor layer overlying said front electrode;
a dielectric layer overlying said phosphor layer;
a transparent rear electrode overlying said dielectric layer; and
a reflective layer overlying the transparent rear electrode.
2 . The lamp as set forth in claim 1 wherein said transparent front electrode is a layer including indium tin oxide.
3 . The lamp as set forth in claim 1 wherein said transparent front electrode is a base having a transparent conductive layer including particles of indium tin oxide in a resin.
4 . The lamp as set forth in claim 1 wherein said transparent rear electrode includes poly-3,4-ethylenedioxythiophene.
5 . The lamp as set forth in claim 1 wherein said transparent rear electrode includes indium tin oxide.
6 . The lamp as set forth in claim 1 wherein said reflective layer has a reflectance greater than ninety percent.
7 . The lamp as set forth in claim 1 wherein said reflective layer consists essentially of titanium dioxide in a polymer binder.
8 . The lamp as set forth in claim 1 wherein said transparent front electrode includes:
a substrate containing polyethylene terephthalate and having a thickness of 6μ-50μ;
a layer of resin containing particles of indium tin oxide.
9 . The lamp as set forth in claim 8 wherein said layer of resin contains nano particles of indium tin oxide.
10 . A high brightness, durable, thick film electroluminescent lamp comprising:
a transparent front electrode, wherein said transparent front electrode includes a layer of resin containing particles of indium tin oxide;
a phosphor layer overlying said front electrode;
a dielectric layer overlying said phosphor layer;
a transparent rear electrode overlying said dielectric layer; and
a reflective layer overlying the transparent rear electrode and consisting essentially of titanium dioxide in a polymer binder.
11 . The lamp as set forth in claim 10 wherein said transparent rear electrode includes poly-3,4-ethylenedioxythiophene.
12 . The lamp as set forth in claim 10 wherein said transparent rear electrode includes acicular indium tin oxide.
13 . The lamp as set forth in claim 10 wherein said transparent front electrode includes:
a thin substrate containing polyethylene terephthalate; and
said layer of said resin containing particles of indium tin oxide overlies said substrate.
14 . The lamp as set forth in claim 13 wherein said particles of indium tin oxide are nano particles.
15 . A high brightness, durable, thick film electroluminescent lamp comprising:
a transparent front electrode including a substrate containing polyethylene terephthalate and a layer of resin containing nano particles of indium tin oxide;
a phosphor layer overlying said front electrode;
a dielectric layer overlying said phosphor layer;
a transparent rear electrode overlying said dielectric layer; and
a reflective layer overlying the transparent rear electrode and having a reflectance of greater than ninety percent.
16 . The lamp as set forth in claim 15 wherein said transparent rear electrode includes poly-3,4-ethylenedioxythiophene.
17 . The lamp as set forth in claim 15 wherein said transparent rear electrode includes acicular indium tin oxide.