公开(公告)号：US11864411B2

公开(公告)日：2024-01-02

申请号：US17092568

申请日：2020-11-09

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yungbin Chung ,  Sanggun Choi ,  Yeoungkeol Woo ,  Myounggeun Cha ,  Eunjin Kwak

IPC: H10K50/844 ,  H01L29/786 ,  H10K71/00

CPC classification number: H10K50/844 ,  H01L29/786 ,  H10K71/00

Abstract: A display apparatus includes a first substrate, a main pixel circuit located on the first substrate and including a first semiconductor layer, an auxiliary pixel circuit located on the first substrate and including a second semiconductor layer, a buffer layer located between the first substrate and the first semiconductor layer and between the first substrate and the second semiconductor layer, and a barrier layer located between the first substrate and the buffer layer, including one material from among silicon nitride (SiNx), aluminum oxide (Al2O3), and zirconium oxide (Zr2O3), and having a density ranging from about 2 g/cm3 to about 6 g/cm3.

公开(公告)号：US20230090817A1

公开(公告)日：2023-03-23

申请号：US17743424

申请日：2022-05-12

Applicant: Samsung Display Co., Ltd.

Inventor： Myounggeun Cha ,  Joohee Jeon ,  Sanggun Choi

IPC: H01L27/32

Abstract: A display apparatus for displaying a high-resolution image and having a low occurrence rate of defects caused by a voltage drop. The display apparatus includes a substrate, a first conductive layer arranged on the substrate and including an auxiliary data line extending in a first direction, a first semiconductor layer arranged on the first conductive layer, a first gate layer arranged on the first semiconductor layer, a first connection electrode layer arranged on the first gate layer and including a first connection electrode electrically connected to the first semiconductor layer and the auxiliary data line, and a second connection electrode layer arranged on the first connection electrode layer and including a data line electrically connected to the first connection electrode.

公开(公告)号：US11257887B2

公开(公告)日：2022-02-22

申请号：US16737653

申请日：2020-01-08

Applicant: Samsung Display Co., Ltd.

Inventor： Thanh Tien Nguyen ,  Meejae Kang ,  Yongsu Lee ,  Sanggun Choi

IPC: H01L27/14 ,  H01L27/32 ,  H01L27/12 ,  H01L29/786

Abstract: A thin film transistor substrate includes: a substrate, a first electrode disposed on the substrate, a bank disposed on the substrate and having an inclined surface inclined at an angle with respect to the substrate, a second electrode disposed on the bank, an active pattern electrically connected to the first electrode and the second electrode, disposed on the inclined surface, and including a first conductive region and a second conductive region in which impurities are doped, and a channel region between the first conductive region and the second conductive region, and a gate electrode overlapping at least a portion of the channel region of the active pattern. The inclined surface extends in a first direction in a plan view. The first conductive region, the channel region, and the second conductive region are sequentially disposed on the inclined surface along a second direction that crosses the first direction.

公开(公告)号：US11455955B2

公开(公告)日：2022-09-27

申请号：US17264703

申请日：2019-03-29

Applicant: Samsung Display Co., Ltd.

Inventor： Myounggeun Cha ,  Sanggun Choi ,  Jiyeong Shin ,  Yongsu Lee

IPC: G09G3/3258 ,  G09G3/3233 ,  G09G3/3225

Abstract: A display device may include a substrate, an organic light emitting element on the substrate, a pixel circuit between the substrate and the organic light emitting element, electrically connected to the organic light emitting element, and including a first transistor and a second transistor, a first metal layer between the substrate and the pixel circuit, overlapping the first transistor, and configured to receive a first voltage, and a second metal layer between the substrate and the pixel circuit, overlapping the second transistor, and configured to receive a second voltage different from the first voltage.

公开(公告)号：US11183650B2

公开(公告)日：2021-11-23

申请号：US16202595

申请日：2018-11-28

Applicant: Samsung Display Co., Ltd.

Inventor： Myounggeun Cha ,  Sanggun Choi ,  Meejae Kang ,  Sanggab Kim ,  Joon woo Bae ,  Thanh Tien Nguyen ,  Kyoungwon Lee ,  Yongsu Lee

IPC: H01L51/00 ,  H01L27/32 ,  H01L51/52 ,  H01L51/50 ,  H01L51/56

Abstract: A display substrate includes a first conductive layer on a base substrate, a first insulation layer on the first conductive layer, a second conductive layer on the first insulation layer, a second insulation layer on the second conductive layer, and a third conductive layer on the second insulation layer. The third conductive layer is connected to the first conductive layer and the second conductive layer through a contact hole passing through the first insulation layer, the second conductive layer, and the second insulation layer. A sidewall of the contact hole has a stepped shape.

公开(公告)号：US11024696B2

公开(公告)日：2021-06-01

申请号：US16510614

申请日：2019-07-12

Applicant: Samsung Display Co., Ltd.

Inventor： Myounggeun Cha ,  Yongsu Lee ,  Sanggun Choi ,  Jiyeong Shin

IPC: H01L27/32 ,  H01L51/00 ,  H01L27/12

Abstract: A display apparatus has a display area and a non-display area around the display area, the display apparatus includes, in the non-display area, a first power line, a driving circuit on a layer over the first power line, and a second power line electrically connected to the first power line and on a same layer on which one electrode of the driving circuit is arranged.

公开(公告)号：US09634041B2

公开(公告)日：2017-04-25

申请号：US14461618

申请日：2014-08-18

Applicant: Samsung Display Co., Ltd.

Inventor： Seung-Yeon Chae ,  Sanggun Choi ,  Hansu Kim ,  Taewoon Cha

IPC: G02F1/1339 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1368 ,  H01L27/02 ,  H01L27/12 ,  G02F1/1362

CPC classification number: H01L27/1259 ,  G02F1/133377 ,  G02F1/133512 ,  G02F1/136209 ,  G02F2001/136222

Abstract: A display apparatus includes a number of pixels. Each pixel includes a substrate including a pixel area and a non-pixel area disposed between adjacent pixel areas, a first electrode disposed on the substrate in the pixel area, and a second electrode extending in a first direction and being spaced apart upward from the substrate by a predetermined distance in the pixel area defining a tunnel-shaped cavity, an image display layer disposed in the tunnel-shaped cavity and driven by an electric field formed between the first electrode and the second electrode, a roof layer disposed on the second electrode, and a sealing layer extending in the first direction, having a black color, and being disposed in the non-pixel area between adjacent pixel areas in a second direction crossing the first direction to seal the tunnel-shaped cavity.

公开(公告)号：US20210320278A1

公开(公告)日：2021-10-14

申请号：US17092568

申请日：2020-11-09

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yungbin Chung ,  Sanggun Choi ,  Yeoungkeol Woo ,  Myounggeun Cha ,  Eunjin Kwak

IPC: H01L51/52 ,  H01L51/56 ,  H01L29/786

Abstract: A display apparatus includes a first substrate, a main pixel circuit located on the first substrate and including a first semiconductor layer, an auxiliary pixel circuit located on the first substrate and including a second semiconductor layer, a buffer layer located between the first substrate and the first semiconductor layer and between the first substrate and the second semiconductor layer, and a barrier layer located between the first substrate and the buffer layer, including one material from among silicon nitride (SiNx), aluminum oxide (Al2O3), and zirconium oxide (Zr2O3), and having a density ranging from about 2 g/cm3 to about 6 g/cm3.

公开(公告)号：US10991783B2

公开(公告)日：2021-04-27

申请号：US16573882

申请日：2019-09-17

Applicant: Samsung Display Co., Ltd.

Inventor： Myounggeun Cha ,  Sanggun Choi ,  Jiyeong Shin ,  Yongsu Lee

IPC: H01L27/32 ,  G09G3/3258 ,  G09G3/3266 ,  H01L27/12

Abstract: A scan driver includes a substrate, a first transistor on the substrate, the first transistor including a first active pattern and a first gate electrode, the first active pattern including first and second regions, and a first channel region between the first and second regions, a second transistor on the first transistor, the second transistor including a second active pattern and a second gate electrode, the second active pattern including third and fourth regions, and a second channel region between the third and fourth regions, first and second electrodes on the second transistor, the first electrode and the second electrode electrically connected to the first region and the second region, respectively, and third and fourth electrodes on the second transistor, the third electrode and the fourth electrode electrically connected to the third region and the fourth region, respectively, wherein the first and third electrodes are electrically connected.

公开(公告)号：US20210043139A1

公开(公告)日：2021-02-11

申请号：US16897646

申请日：2020-06-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Myounggeun Cha ,  Sanggun Choi ,  Hyena Kwak ,  Jiyeong Shin ,  Yongsu Lee ,  Kiseok Choi

IPC: G09G3/3233 ,  H01L27/32 ,  G09G3/3266 ,  G09G3/3291

Abstract: A display device includes a first transistor including a first channel region, a first gate electrode overlapping the first channel region, and a first electrode connected to a node receiving a driving voltage, a second transistor electrically connected to the first electrode of the first transistor, the second transistor including a second channel region and a second gate electrode overlapping the first channel region and receiving a scan signal, a light emitting element electrically connected to a second electrode of the first transistor, a first conductive line overlapping the first gate electrode with the first channel region in between and receiving a variable voltage different from the driving voltage, and a second conductive line overlapping the second gate electrode with the second channel region in between and receiving the scan signal.