公开(公告)号：US20240113152A1

公开(公告)日：2024-04-04

申请号：US18535829

申请日：2023-12-11

Applicant: LG Display Co., Ltd.

Inventor： Dong-Il CHU ,  Min-Joo KIM ,  Jae-Won LEE ,  Sang-Hoon PAK ,  Sang-Hyuk WON ,  Seung-Hyun YOUK ,  Seon-Hee LEE

IPC: H01L27/15 ,  H01L29/786 ,  H01L33/12 ,  H01L33/38 ,  H01L33/62

CPC classification number: H01L27/156 ,  H01L29/78618 ,  H01L29/7869 ,  H01L33/12 ,  H01L33/38 ,  H01L33/62

Abstract: A display apparatus can include a substrate having a penetrating area and a separating area, the penetrating area including a substrate hole, a first buffer layer having a first-buffer lower layer, and a first-buffer upper layer, a first thin film transistor including a first semiconductor pattern, a first gate electrode, and a first source electrode and a first drain electrode, a first interlayer insulating film; a second interlayer insulating film, an opening extending through the second interlayer insulating film, the first interlayer insulating film, the first gate insulating film and the first-buffer upper layer, and a separation structure in the opening, the separation structure including a first separation layer having a same stacked structure as the first-buffer upper layer, a second separation layer having a same stacked structure as the first gate insulating film, and a third separation layer having a same stacked structure as the first gate electrode.