Patent ID: 11927860
Assignee: SHARP DISPLAY TECHNOLOGY CORPORATION
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 20:
21. The manufacturing method of an active matrix substrate according to claim 14,
wherein the active matrix substrate includes a plurality of wiring line overlapping portions and a plurality of groove regions arranged in the non-display region,
in each of the plurality of wiring line overlapping portions, one of first wiring lines formed of the first conductive film and one of second wiring lines formed of the second conductive film overlap each other with the gate insulating layer interposed between the one of first wiring lines and the one of second wiring lines,
in each of the plurality of groove regions, the organic insulating layer includes a groove extending in a predetermined direction when viewed from the normal direction of the substrate,
the forming of the interlayer insulating layer (E) is patterning the inorganic insulating layer and the organic insulating layer by photolithography using different photomasks from each other, and includes forming, in the organic insulating layer, a first opening exposing the inorganic insulating layer located in each of the plurality of wiring line overlapping portions, and the groove exposing the inorganic insulating layer located in each of the plurality of groove regions,
in the forming of the first dielectric layer (G), the first dielectric layer covers each of the plurality of wiring line overlapping portions and each of the plurality of groove regions, and is in contact with the inorganic insulating layer in the first opening in each of the plurality of wiring line overlapping portions, and is in contact with the inorganic insulating layer in the groove in each of the plurality of groove regions.