Patent ID: 7541626

Claim:
A transparent thin film transistor device comprising: a transparent substrate; a high dielectric constant insulator layer disposed over the transparent substrate at a defined temperature, said high dielectric constant insulator layer comprises at least one material selected from the group consisting of Bi 2 (Zn 1/3 Nb 2/3 ) 2 O 7 , Bi 1.5 Zn 1.0 M 1.5 O 7 (M=Nb, Ta, Sb), (Bi) 1˜2 (Zn, Nb, Ta, Ti) 2 O 7 , (Ca, Ba, Sr, Pb) 1˜2 (Zn, Nb, Ta, Ti, Zr) 2 O 7 , and (Ca 1-x Sr x )Bi 4 Ti 4 O 15 ; and a transparent semiconductor layer disposed over the high dielectric constant insulator layer.