公开(公告)号：US20230186853A1

公开(公告)日：2023-06-15

申请号：US18050999

申请日：2022-10-30

Applicant: LG DISPLAY CO., LTD.

Inventor： MunChae YOON ,  ByeongUk GANG ,  Seonghwan HWANG

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2320/043 ,  G09G2320/0233

Abstract: A pixel circuit for a display device includes a light emitting element, a driving transistor for driving the light emitting element, a scan transistor controlled by a scan signal supplied from a gate line and controlling a connection between a first node of the driving transistor and a data line, a storage capacitor connected between the first node of the driving transistor and a second node of the driving transistor, and a driving control diode connected between the second node of the driving transistor and a reference voltage line.

公开(公告)号：US20240128277A1

公开(公告)日：2024-04-18

申请号：US18395553

申请日：2023-12-23

Applicant: LG Display Co., Ltd.

Inventor： YounSub KIM ,  JongSik SHIM ,  ByeongUk GANG ,  SeongHwan HWANG

IPC: H01L27/12 ,  G02F1/13 ,  H01L23/522

CPC classification number: H01L27/124 ,  G02F1/13 ,  H01L23/5226 ,  H01L23/528

Abstract: A display device includes a data line transmitting a data voltage to each pixel, a power line supplying current to each pixel, wherein the data line and the power line are disposed on a substrate and extended along a first direction, a light shielding layer shielding a light emitting diode from light coming from outside, a gate line transmitting a gate voltage to each pixel and extended along a second direction intersecting the first direction, a gate insulating layer and a buffer layer disposed between the data line and the gate line, wherein the data line and the power line are disposed on a same layer as the light shielding layer.

公开(公告)号：US20240260430A1

公开(公告)日：2024-08-01

申请号：US18540372

申请日：2023-12-14

Applicant: LG Display Co., Ltd.

Inventor： KwangYong CHOI ,  EunJi PARK ,  ByeongUk GANG

IPC: H10K59/80 ,  H10K59/122

CPC classification number: H10K59/8792 ,  H10K59/122 ,  H10K59/351

Abstract: A display device capable of enhancing the negative bias temperature illumination stress (NBTiS) characteristics and the reliability of a thin film transistor, can include a substrate including having an emission area and a non-emission area, a thin film transistor disposed on the substrate, a passivation layer covering an upper portion of the thin film transistor, an overcoat layer disposed on the passivation layer and having a slit or through hole recessed toward the passivation layer, and a black bank layer disposed on the overcoat layer and formed to have a shape corresponding to the slit or through hole to form a protrusion positioned in the slit or through hole.

公开(公告)号：US20210202533A1

公开(公告)日：2021-07-01

申请号：US17200531

申请日：2021-03-12

Applicant: LG Display Co., Ltd.

Inventor： YounSub KIM ,  JongSik SHIM ,  ByeongUk GANG ,  SeongHwan HWANG

IPC: H01L27/12 ,  H01L23/522 ,  G02F1/13

Abstract: In the contact structure according to an exemplary aspect of the present disclosure and a display device including the same, the pixel may be designed regardless of the size of the contact hole by designing a size (or an area) of the contact hole to be larger than the contact area and applying different structures depending on the characteristics of the lower layer. Therefore, the size of the contact hole is increased so that the halftone mask may be easily applied and the number of masks may be advantageously reduced. Further, a degree of freedom of metal in the pixel design is increased so that the pixel may be designed in a high resolution model and the aperture ratio is increased without having the electrode margin. The contact structure comprises: a lower layer; at least a first insulating layer on the lower layer, the first insulating layer having a predetermined contact hole to expose a part of the lower layer; and an upper layer on the first insulating layer to be in contact with the lower layer through the contact hole, wherein the contact hole has a relatively larger area than a contact area where the upper layer and the lower layer are in contact with each other.

公开(公告)号：US20190181156A1

公开(公告)日：2019-06-13

申请号：US16165059

申请日：2018-10-19

Applicant: LG DISPLAY CO., LTD.

Inventor： YounSub KIM ,  JongSik SHIM ,  ByeongUk GANG ,  SeongHwan HWANG

IPC: H01L27/12 ,  H01L23/522

Abstract: In the contact structure according to an exemplary aspect of the present disclosure and a display device including the same, the pixel may be designed regardless of the size of the contact hole by designing a size (or an area) of the contact hole to be larger than the contact area and applying different structures depending on the characteristics of the lower layer. Therefore, the size of the contact hole is increased so that the halftone mask may be easily applied and the number of masks may be advantageously reduced. Further, a degree of freedom of metal in the pixel design is increased so that the pixel may be designed in a high resolution model and the aperture ratio is increased without having the electrode margin. The contact structure comprises:a lower layer; at least a first insulating layer on the lower layer, the first insulating layer having a predetermined contact hole to expose a part of the lower layer; and an upper layer on the first insulating layer to be in contact with the lower layer through the contact hole, wherein the contact hole has a relatively larger area than a contact area where the upper layer and the lower layer are in contact with each other.

公开(公告)号：US20230217742A1

公开(公告)日：2023-07-06

申请号：US17976392

申请日：2022-10-28

Applicant: LG Display Co., Ltd.

Inventor： ByeongUk GANG ,  InHyo HAN

IPC: H01L27/32 ,  H01L51/56

CPC classification number: H01L27/3276 ,  H01L27/322 ,  H01L27/3246 ,  H01L27/3265 ,  H01L51/56 ,  H01L2227/323

Abstract: Embodiments of the disclosure relate to an organic light emitting display device and an organic light emitting display panel. Specifically, embodiments of the disclosure may provide an organic light emitting display device and an organic light emitting display panel which include a first signal line disposed between a first emission area and a second emission area and a second signal line spaced apart from the first signal line, a first insulation film disposed on the first signal line and the second signal line and having a first hole corresponding to a separation space between the first signal line and the second signal line, and a second insulation film disposed on the first insulation film, wherein the second insulation film is disposed in the separation space between the first signal line and the second signal line and the first hole of the first insulation film. Thus, it is possible to reduce the separation space between the signal lines and thus increase the area of the emission area to thereby enhance optical characteristics.

公开(公告)号：US20230018904A1

公开(公告)日：2023-01-19

申请号：US17952419

申请日：2022-09-26

Applicant: LG DISPLAY CO., LTD.

Inventor： YounSub KIM ,  JongSik SHIM ,  ByeongUk GANG ,  SeongHwan HWANG

IPC: H01L27/12 ,  H01L23/522 ,  G02F1/13

Abstract: In the contact structure according to an exemplary aspect of the present disclosure and a display device including the same, the pixel may be designed regardless of the size of the contact hole by designing a size (or an area) of the contact hole to be larger than the contact area and applying different structures depending on the characteristics of the lower layer. Therefore, the size of the contact hole is increased so that the halftone mask may be easily applied and the number of masks may be advantageously reduced. Further, a degree of freedom of metal in the pixel design is increased so that the pixel may be designed in a high resolution model and the aperture ratio is increased without having the electrode margin. The contact structure comprises: a lower layer; at least a first insulating layer on the lower layer, the first insulating layer having a predetermined contact hole to expose a part of the lower layer; and an upper layer on the first insulating layer to be in contact with the lower layer through the contact hole, wherein the contact hole has a relatively larger area than a contact area where the upper layer and the lower layer are in contact with each other.