公开(公告)号：US20180175077A1

公开(公告)日：2018-06-21

申请号：US15828207

申请日：2017-11-30

Applicant: LG Display Co., Ltd.

Inventor： HyungJoon Koo ,  SeHee Park ,  Kwanghwan Ji ,  PilSang Yun ,  Jaeyoon Park ,  HongRak Choi

IPC: H01L27/12

CPC classification number: H01L27/1255 ,  H01L27/1225 ,  H01L27/124 ,  H01L27/1251 ,  H01L27/3262 ,  H01L27/3265 ,  H01L27/3272 ,  H01L29/78633 ,  H01L29/78648 ,  H01L29/7869

Abstract: Disclosed is a thin film transistor substrate which facilitates to realize a bottom gate structure where a gate electrode is disposed below an active layer, and to increase an area for a storage capacitor, and a display device including the same, wherein the thin film transistor substrate may include a light shielding layer, a buffer layer for covering the light shielding layer, and a driving transistor prepared on the buffer layer while being overlapped with the light shielding layer, and provided to supply a driving current to an organic light emitting device.

公开(公告)号：US10741126B2

公开(公告)日：2020-08-11

申请号：US15828194

申请日：2017-11-30

Applicant: LG Display Co., Ltd.

Inventor： HongRak Choi ,  SeHee Park ,  PilSang Yun ,  HyungJoon Koo ,  Kwanghwan Ji ,  Jaeyoon Park

IPC: G09G3/325 ,  H01L27/32 ,  H01L27/12 ,  G09G3/3233 ,  G02F1/1676

Abstract: Disclosed are a transistor assembly, an organic light emitting display panel including the same, and an organic light emitting display device including the organic light emitting display panel, in which a first electrode of a switching transistor is used as a gate of a driving transistor.

公开(公告)号：US11676970B2

公开(公告)日：2023-06-13

申请号：US17671452

申请日：2022-02-14

Applicant: LG Display Co. Ltd.

Inventor： Kwanghwan Ji ,  HongRak Choi ,  Jeyong Jeon ,  Jaeyoon Park

IPC: H01L27/12 ,  H01L29/417 ,  H01L29/45 ,  H01L29/66 ,  H01L29/78 ,  H01L49/02 ,  H01L29/786

CPC classification number: H01L27/1225 ,  H01L27/1255 ,  H01L27/1288 ,  H01L28/60 ,  H01L29/41733 ,  H01L29/45 ,  H01L29/66969 ,  H01L29/7869

Abstract: A panel comprises a substrate; a transistor disposed on the substrate and including: a source electrode, a drain electrode, a gate electrode, a gate insulation layer, an active layer, an auxiliary source electrode configured to electrically connect one end of the active layer to the source electrode, and an auxiliary drain electrode configured to electrically connect an other end of the active layer to the drain electrode; and a capacitor disposed on the substrate and including a first plate and a second plate. The first plate of the capacitor is made of a same material as the auxiliary source electrode and the auxiliary drain electrode.

公开(公告)号：US20180151114A1

公开(公告)日：2018-05-31

申请号：US15828194

申请日：2017-11-30

Applicant: LG Display Co., Ltd.

Inventor： HongRak Choi ,  SeHee Park ,  PilSang Yun ,  HyungJoon Koo ,  Kwanghwan Ji ,  Jaeyoon Park

IPC: G09G3/325 ,  H01L27/32

Abstract: Disclosed are a transistor assembly, an organic light emitting display panel including the same, and an organic light emitting display device including the organic light emitting display panel, in which a first electrode of a switching transistor is used as a gate of a driving transistor.

公开(公告)号：US20230146562A1

公开(公告)日：2023-05-11

申请号：US17978100

申请日：2022-10-31

Applicant: LG Display Co., Ltd.

Inventor： Dohyung Lee ,  HongRak Choi ,  ChanYong Jeong

IPC: H01L27/32

CPC classification number: H01L27/3262 ,  H01L27/3272 ,  H01L27/1225

Abstract: A thin film transistor and a display device comprising the same are provided. The thin film transistor comprises a first gate electrode and a second gate electrode, which are spaced apart from each other to overlap each other, and an active layer disposed between the first gate electrode and the second gate electrode, including a first active layer and a second active layer, wherein the active layer includes a channel portion, a first connection portion that is in contact with one side of the channel portion, and a second connection portion that is in contact with the other side of the channel portion. The channel portion includes a first channel portion and a second channel portion, which are disposed in parallel.

公开(公告)号：US10236310B2

公开(公告)日：2019-03-19

申请号：US15824974

申请日：2017-11-28

Applicant: LG Display Co., Ltd.

Inventor： SeHee Park ,  HongRak Choi ,  PilSang Yun ,  HyungJoon Koo ,  Kwanghwan Ji ,  Jaeyoon Park

IPC: H01L27/12 ,  H01L27/32 ,  H01L29/49 ,  H01L29/78 ,  H01L51/56 ,  H01L29/417 ,  H01L27/07 ,  H01L29/786

Abstract: Disclosed are a transistor substrate, an organic light emitting display panel including the same, a method of manufacturing the transistor substrate, and an organic light emitting display device including the organic light emitting display panel, in which a driving transistor and a switching transistor are provided and each include an oxide semiconductor of which both ends are covered by an insulation layer, and a gate of the driving transistor and a gate of the switching transistor are provided on different layers.

公开(公告)号：US11705460B2

公开(公告)日：2023-07-18

申请号：US17671452

申请日：2022-02-14

Applicant: LG Display Co. Ltd.

Inventor： Kwanghwan Ji ,  HongRak Choi ,  Jeyong Jeon ,  Jaeyoon Park

IPC: H01L27/12 ,  H01L29/417 ,  H01L29/45 ,  H01L29/66 ,  H01L29/78 ,  H01L49/02 ,  H01L29/786

CPC classification number: H01L27/1225 ,  H01L27/1255 ,  H01L27/1288 ,  H01L28/60 ,  H01L29/41733 ,  H01L29/45 ,  H01L29/66969 ,  H01L29/7869

Abstract: A panel comprises a substrate; a transistor disposed on the substrate and including: a source electrode, a drain electrode, a gate electrode, a gate insulation layer, an active layer, an auxiliary source electrode configured to electrically connect one end of the active layer to the source electrode, and an auxiliary drain electrode configured to electrically connect an other end of the active layer to the drain electrode; and a capacitor disposed on the substrate and including a first plate and a second plate. The first plate of the capacitor is made of a same material as the auxiliary source electrode and the auxiliary drain electrode.

公开(公告)号：US11276710B2

公开(公告)日：2022-03-15

申请号：US16659528

申请日：2019-10-21

Applicant: LG Display Co. Ltd.

Inventor： Kwanghwan Ji ,  HongRak Choi ,  Jeyong Jeon ,  Jaeyoon Park

IPC: H01L27/12 ,  H01L29/417 ,  H01L29/45 ,  H01L29/66 ,  H01L29/78 ,  H01L49/02 ,  H01L29/786

Abstract: A panel comprises a substrate; a transistor disposed on the substrate and including: a source electrode, a drain electrode, a gate electrode, a gate insulation layer, an active layer, an auxiliary source electrode configured to electrically connect one end of the active layer to the source electrode, and an auxiliary drain electrode configured to electrically connect an other end of the active layer to the drain electrode; and a capacitor disposed on the substrate and including a first plate and a second plate. The first plate of the capacitor is made of a same material as the auxiliary source electrode and the auxiliary drain electrode.

公开(公告)号：US10290658B2

公开(公告)日：2019-05-14

申请号：US15828207

申请日：2017-11-30

Applicant: LG Display Co., Ltd.

Inventor： HyungJoon Koo ,  SeHee Park ,  Kwanghwan Ji ,  PilSang Yun ,  Jaeyoon Park ,  HongRak Choi

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

Abstract: Disclosed is a thin film transistor substrate which facilitates to realize a bottom gate structure where a gate electrode is disposed below an active layer, and to increase an area for a storage capacitor, and a display device including the same, wherein the thin film transistor substrate may include a light shielding layer, a buffer layer for covering the light shielding layer, and a driving transistor prepared on the buffer layer while being overlapped with the light shielding layer, and provided to supply a driving current to an organic light emitting device.