公开(公告)号：US09048326B2

公开(公告)日：2015-06-02

申请号：US13710889

申请日：2012-12-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Youngjoo Choi ,  Gwang-Bum Ko ,  GwonHeon Ryu ,  Joongeol Kim ,  Do-Hyun Kim ,  Sang-Moon Moh ,  WooGeun Lee ,  WonHee Lee

IPC: H01L21/00 ,  H01L29/786 ,  H01L29/66 ,  H01L27/12 ,  G02F1/1343

CPC classification number: H01L29/78693 ,  G02F1/134363 ,  H01L27/1225 ,  H01L27/124 ,  H01L27/1259 ,  H01L27/1288 ,  H01L29/66969

Abstract: A thin film transistor substrate includes a substrate; a gate electrode on the substrate; a semiconductor pattern on the gate electrode; a source electrode on the semiconductor pattern; a drain electrode on the semiconductor pattern and spaced apart from the source electrode; a pixel electrode connected to the drain electrode; and a common electrode partially overlapped with the pixel electrode. The semiconductor pattern is in a same layer of the thin film transistor substrate as the pixel electrode and has an electrical property different from an electrical property of the pixel electrode.

Abstract translation: 薄膜晶体管基板包括基板; 基板上的栅电极; 栅电极上的半导体图案; 半导体图案上的源电极; 半导体图案上的漏电极，与源电极间隔开; 连接到所述漏电极的像素电极; 以及与像素电极部分重叠的公共电极。 半导体图案与像素电极在薄膜晶体管基板的同一层中，具有与像素电极的电特性不同的电特性。

公开(公告)号：US20220173198A1

公开(公告)日：2022-06-02

申请号：US17402696

申请日：2021-08-16

Applicant: SAMSUNG DISPLAY CO., LTD

Inventor： Jongin Kim ,  Hyunseong Kang ,  Joongeol Kim ,  Seokhwan Bang ,  Seungsok Son ,  Woogeun Lee ,  Youngjae Jeon ,  Soojung Chae ,  Jiyun Hong

IPC: H01L27/32

Abstract: A display apparatus includes a substrate including a display area and a peripheral area outside the display area, a thin film transistor arranged on the substrate corresponding to the display area and including a semiconductor layer and a gate electrode, a pad electrode arranged on the substrate corresponding to the peripheral area and including a material the same as that of the semiconductor layer, and a first insulating layer arranged on the thin film transistor and the pad electrode and including an opening that partially exposes the pad electrode. Accordingly, failure to perform a normal operation by a pixel circuit and a light-emitting element may be prevented.

公开(公告)号：US11980083B2

公开(公告)日：2024-05-07

申请号：US16832583

申请日：2020-03-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Keum Hee Lee ,  Joongeol Kim ,  Kap Soo Yoon ,  Woo Geun Lee ,  Seung-Ha Choi ,  Jiyun Hong

IPC: H01L51/56 ,  H10K71/00 ,  H10K71/20 ,  H10K71/60 ,  H10K102/10

CPC classification number: H10K71/00 ,  H10K71/233 ,  H10K71/60 ,  H10K2102/103

Abstract: A method of manufacturing a thin film transistor includes: forming an active pattern on a substrate; forming an insulating layer and a gate electrode layer on the active pattern in order; forming a photoresist pattern on the gate electrode layer; forming a preliminary gate electrode by wet etching the gate electrode layer using the photoresist pattern; forming an insulating pattern by dry etching the insulating layer using the photoresist pattern and the preliminary gate electrode; and forming a gate electrode by wet etching a side surface of the preliminary gate electrode using the photoresist pattern.

公开(公告)号：US20220139970A1

公开(公告)日：2022-05-05

申请号：US17358640

申请日：2021-06-25

Applicant: Samsung Display Co., Ltd.

Inventor： Joongeol Kim ,  Seulki Kim ,  Youngjae Jeon ,  Hyunseong Kang ,  Seungrae Kim ,  Jongin KIM ,  Seokhwan Bang ,  Seungsok Son ,  Donghoon Shin ,  Kapsoo Yoon ,  Kwangsoo Lee ,  Woogeun Lee ,  Jaehyun Lee ,  Kisu Jin ,  Junewhan Choi ,  Jongmoo Huh ,  Jiyun Hong

IPC: H01L27/12 ,  H01L27/32 ,  H01L51/56 ,  H01L25/16

Abstract: A display apparatus includes a substrate including a display area and a peripheral area adjacent to the display area, a thin-film transistor located in the display area of the substrate and including a semiconductor layer and a gate electrode overlapping a channel region of the semiconductor layer, a conductive layer disposed between the substrate and the semiconductor layer and including a first electrode located in the display area of the substrate and a pad electrode located in the peripheral area of the substrate, and a first insulating layer disposed between the conductive layer and the semiconductor layer and having a first opening that exposes at least a portion of an upper surface of the pad electrode.

公开(公告)号：US12108638B2

公开(公告)日：2024-10-01

申请号：US17402696

申请日：2021-08-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jongin Kim ,  Hyunseong Kang ,  Joongeol Kim ,  Seokhwan Bang ,  Seungsok Son ,  Woogeun Lee ,  Youngjae Jeon ,  Soojung Chae ,  Jiyun Hong

IPC: H10K59/131 ,  G09G3/3233 ,  H01L27/12 ,  H01L29/24 ,  H01L29/786 ,  H10K59/121

CPC classification number: H10K59/131 ,  H10K59/1213 ,  H10K59/1216 ,  G09G3/3233 ,  G09G2300/0809 ,  H01L27/1225 ,  H01L27/124 ,  H01L27/1255 ,  H01L29/24 ,  H01L29/7869

Abstract: A display apparatus includes a substrate including a display area and a peripheral area outside the display area, a thin film transistor arranged on the substrate corresponding to the display area and including a semiconductor layer and a gate electrode, a pad electrode arranged on the substrate corresponding to the peripheral area and including a material the same as that of the semiconductor layer, and a first insulating layer arranged on the thin film transistor and the pad electrode and including an opening that partially exposes the pad electrode. Accordingly, failure to perform a normal operation by a pixel circuit and a light-emitting element may be prevented.

公开(公告)号：US12002821B2

公开(公告)日：2024-06-04

申请号：US17358640

申请日：2021-06-25

Applicant: Samsung Display Co., Ltd.

Inventor： Joongeol Kim ,  Seulki Kim ,  Youngjae Jeon ,  Hyunseong Kang ,  Seungrae Kim ,  Jongin Kim ,  Seokhwan Bang ,  Seungsok Son ,  Donghoon Shin ,  Kapsoo Yoon ,  Kwangsoo Lee ,  Woogeun Lee ,  Jaehyun Lee ,  Kisu Jin ,  Junewhan Choi ,  Jongmoo Huh ,  Jiyun Hong

IPC: H01L27/12 ,  H01L25/16 ,  H10K59/124 ,  H10K59/131 ,  H10K71/00 ,  H10K59/12

CPC classification number: H01L27/1288 ,  H01L25/167 ,  H01L27/124 ,  H01L27/1248 ,  H10K59/124 ,  H10K59/131 ,  H10K71/00 ,  H10K59/1201

Abstract: A display apparatus includes a substrate including a display area and a peripheral area adjacent to the display area, a thin-film transistor located in the display area of the substrate and including a semiconductor layer and a gate electrode overlapping a channel region of the semiconductor layer, a conductive layer disposed between the substrate and the semiconductor layer and including a first electrode located in the display area of the substrate and a pad electrode located in the peripheral area of the substrate, and a first insulating layer disposed between the conductive layer and the semiconductor layer and having a first opening that exposes at least a portion of an upper surface of the pad electrode.