Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
73 words
A thin film electroluminescent element comprising a phosphor thin film, a dielectric thin film disposed on at least one surface of said phosphor thin film, and electrodes for applying a voltage across said films, characterized in that said dielectric thin film is constituted by a dielectric material having composition expressed by a general formula of AB 2 0 6 where A represents a divalent metal element and B represents a pentavalent metal element.
Claim 2
Dependent Claim
73 words
A thin film electroluminescent element comprising a phosphor thin film, a dielectric thin film disposed on at least one surface of said phosphor thin film, and electrodes for applying a voltage across said films, characterized in that said dielectric thin film is constituted by a dielectric material having composition expressed by a general formula of AB 2 0 6 where A represents a divalent metal element and B represents a pentavalent metal element.
Claim 3
Dependent Claim
51 words
A thin film electroluminescent element according to claim 1, characterized in that the divalent metal element A is at least one selected from a group consisting of Pb, Sn, Mg, Ca, Sr, Ba, Zn and Cd, and that the pentavalent metal element B is at least one of Ta and Nb.
Claim 4
Dependent Claim
46 words
A thin film electroluminescent element according to claim 1, characterized in that the divalent metal element A is at least one selected from a group consisting of Pb, Sr and Ba, and that the pentavalent metal element B is at least one of Ta and Nb.
Claim 5
Dependent Claim
34 words
A thin film electroluminescent element according to claim 1, characterized in that the divalent metal element A is Pb and that the pentavalent metal element B is at least one of Ta and Nb.
Claim 6
Dependent Claim
93 words
A thin film electroluminescent element according to claim 1, characterized in that the dielectric thin film is constituted by a first dielectric thin film expressed by the general formula of AB 2 0 6 (where A represents a divalent metal element and B represets a pentavalent metal element) and a second dielectric thin film which has a product E b ·E γ of dielectric breakdown electric field intensity E b and dielectric constant E y, said product being not . smaller than 80, and which is insusceptible to dielectric breakdown of self-healing type.
Claim 7
Dependent Claim
40 words
A thin film electroluminescent element according to claim 5, characterized in that the second dielectric thin film insusceptible to the dielectric breakdown of the self-healing type is formed of a dielectric material containing perovskite type titanate as a main component.
Claim 8
Dependent Claim
53 words
A thin film electroluminescent element according to claim 5 or 6, characterized in that the divalent metal element A is at least one selected from a group consisting of Pb, Sn, Mg, Ca, Sr, Ba, Zn and Cd, and that the pentavalent metal element B is at least one of Ta and Nb.
Claim 9
Dependent Claim
48 words
A thin film electroluminescent element according to claim 5 or 6, characterized in that the divalent metal element A is at least one selected from a group consisting of Pb, Sr and Ba, and that the pentavalent metal element B is at least one of Ta and Nb.
Claim 10
Dependent Claim
34 words
A thin film electroluminescent element according to claim 5 or 6, characterized in that the divalent metal element is Pb, and that the pentavalent metal element is at least one of Ta and Nb.