公开(公告)号：US20240431172A1

公开(公告)日：2024-12-26

申请号：US18823233

申请日：2024-09-03

Applicant: LG Display Co., Ltd.

Inventor： Hangyu JUNG ,  Woojung BYUN

IPC: H10K59/35 ,  G09G3/3233 ,  H10K59/12 ,  H10K59/121

Abstract: A display panel can include sub-pixels arranged in a matrix configuration, in which each of at least one of the sub-pixels includes a light emitting device, a driving transistor to supply a driving current to the light emitting device, and a storage capacitor to maintain, for a certain period of time, a voltage for controlling a magnitude of the driving current. Also, the storage capacitor includes a bottom electrode, a buffer layer disposed on the bottom electrode, a middle electrode covering a portion of the buffer layer, a gate insulating layer covering the middle electrode and the buffer layer, and an upper electrode covering a portion of the gate insulating layer, and in the buffer layer, a thickness of a first area covered by the middle electrode is greater than a thickness of a second area that is in contact with the gate insulating layer.

公开(公告)号：US20220199714A1

公开(公告)日：2022-06-23

申请号：US17530341

申请日：2021-11-18

Applicant: LG Display Co., Ltd.

Inventor： Deuksoo JUNG ,  Woojung BYUN ,  Minchan KIM

IPC: H01L27/32

Abstract: A display device includes a substrate, a circuit element layer and a bank region. The substrate includes a light emitting region and a non-light-emitting region. The light emitting region forms an opening region. The non-light-emitting region is adjacent to the light emitting region. The circuit element layer is formed in the non-light-emitting region. The bank layer covers a top of the circuit element layer. The bank layer is not formed in the light emitting region.

公开(公告)号：US20220208881A1

公开(公告)日：2022-06-30

申请号：US17546674

申请日：2021-12-09

Applicant: LG Display Co., Ltd.

Inventor： Hangyu JUNG ,  Woojung BYUN

IPC: H01L27/32 ,  G09G3/3233

Abstract: A display panel having an improved opening ratio and a manufacturing method of the display panel are discussed. In the display panel, a storage capacitor includes a bottom electrode, a buffer layer disposed on the bottom electrode, a middle electrode covering a portion of the buffer layer, a gate insulating layer covering the middle electrode and the buffer layer, and an upper electrode covering a portion of the gate insulating layer. In the buffer layer, a thickness of a first area covering the middle electrode is greater than a thickness of a second area that is in contact with the gate insulating layer.

公开(公告)号：US20210202670A1

公开(公告)日：2021-07-01

申请号：US17135475

申请日：2020-12-28

Applicant: LG Display Co., Ltd.

Inventor： Youngju KOH ,  Woojung BYUN ,  Dongyoon LEE ,  Sungsoo KIM ,  Kwangyong CHOI

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

Abstract: Provided is an organic light-emitting diode (OLED) display device. The OLED display device includes a substrate in which a pixel area and a non-pixel area are defined, a power line formed on the substrate, at least one insulating film covering the power line, a light-emitting element formed on the insulating film, a connection electrode connected to the power line and formed to extend along an upper surface of the insulating film, and a passivation film having a contact hole through which a portion of the connection electrode is exposed within the non-pixel area. The light-emitting element includes a first electrode, an emissive layer, and a second electrode that are sequentially stacked. The second electrode is in direct contact with the connection electrode within the contact hole.

公开(公告)号：US20210202662A1

公开(公告)日：2021-07-01

申请号：US17128929

申请日：2020-12-21

Applicant: LG Display Co., Ltd.

Inventor： Yongsun JO ,  Woojung BYUN ,  Hangyu JUNG ,  Deuksoo JUNG

IPC: H01L27/32

Abstract: Provided are a display device and a method of manufacturing the display device, the display device including a substrate including a pixel area where a pixel is placed, and a wire area where wires connected to the pixel are placed, a first power line placed on the substrate, and through which driving power is applied to the pixel, an active layer including a first connection pattern, a second connection pattern, and a third connection pattern that are placed above the first power line in the wire area, the third connection pattern being connected to the first power line, and a first gate line connected to the first connection pattern, and a second gate line connected to the second connection pattern, the first gate line and the second gate line being placed on the active layer in the wire area, wherein the first to the third connection pattern are island-shaped electrodes.

公开(公告)号：US20210202631A1

公开(公告)日：2021-07-01

申请号：US17129110

申请日：2020-12-21

Applicant: LG Display Co., Ltd.

Inventor： Yongsun JO ,  Deuksoo JUNG ,  Woojung BYUN ,  Juhyuk KIM ,  Youngho KIM ,  Gunwoo LEE ,  Hangyu JUNG

IPC: H01L27/32 ,  H01L51/56

Abstract: A display device having a bankless structure may comprises: a substrate on which pixels including an emission area and a non-emission area are disposed; a first conductive layer disposed on the substrate, and including a lower electrode of a storage capacitor; an active layer formed on the first conductive layer; a second conductive layer formed on the active layer, and including electrodes of at least one transistor, and an upper electrode of the storage capacitor which is formed in a single pattern with at least one of the electrodes of the at least one transistor; an overcoat layer covering the second conductive layer; and a light-emitting element may be disposed on the overcoat layer, and connected to the upper electrode of the storage capacitor through a via hole, wherein the via hole does not overlap the at least one transistor, when viewed from above.