Patent ID: 6262438
Filing Date: 2001-07-17
Classification: G02F,H01L

Abstract:
An active matrix type display circuit having at least one top-gate type thin film transistor, comprising:an N-type or a P-type active layer;a conductive film functioning as a black matrix and kept at a constant potential;a gate wiring line and a data wiring line;a first interlayer insulator including a silicon nitride layer and an organic resin layer, and being located between said gate wiring line and said data wiring line; anda second interlayer insulator located between said data wiring line and said conductive film,wherein said silicon nitride layer is located under said organic resin layer in said first interlayer insulator; andwherein an auxiliary capacitor is constituted by both electrodes formed of said active layer and said conductive film, and a dielectric formed of at least said silicon nitride layer of said first interlayer insulator, said auxiliary capacitor being located at a portion where said organic resin layer of said first interlayer insulator and said second interlayer insulator have been etched.