LG Display Co., Ltd.
Display Device

Abstract:

A display device comprises a substrate having an active region and an outer region surrounding the active region, a substrate hole provided in the active region of the substrate, a separation area positioned between the active region and the substrate hole, a first thin film transistor provided in the active region, a first interlayer insulating layer covering a first gate electrode of the first thin film transistor, a first intermediate insulating layer on the first interlayer insulating layer, a second thin film transistor positioned on the first intermediate insulating layer, a second interlayer insulating layer covering a second gate electrode of the second thin film transistor and extending to the separation area, and a second intermediate insulating layer covering an upper portion of the second interlayer insulating layer and extending to the separation area. The second intermediate insulating layer has different thicknesses in the active region and the separation area.