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：US20240431151A1

公开(公告)日：2024-12-26

申请号：US18823518

申请日：2024-09-03

Applicant: LG Display Co., Ltd.

Inventor： Sunmi LEE ,  JungSun BEAK ,  Seongjoo LEE

IPC: H10K59/122 ,  H10K50/813 ,  H10K50/818 ,  H10K59/123

Abstract: A display panel and an organic light emitting display device with enhanced light extraction efficiency is described. The display panel and the display device include an insulating film including at least one concave portion, a first electrode disposed to cover the concave portion, a bank including a first part on the first electrode and overlapping a part of the flat portion of the concave portion, a second part extending from the first part and overlapping an inclined portion of the concave portion, and a third part extending from the second part and disposed on the side portion, an organic layer overlapping the concave portion, and a second electrode on the organic layer and the bank. A width of the first part of the bank is wider than a width of the second part of the bank. Thus, it is possible to provide a display device with enhanced light extraction efficiency.

公开(公告)号：USD1055053S1

公开(公告)日：2024-12-24

申请号：US29797335

申请日：2021-06-30

Applicant: LG DISPLAY CO., LTD.

Designer： Wonjun Lee ,  Seyoung Kim ,  Youhong Cha ,  Sungsu Ham ,  Dongkyu Yoon ,  Jaewan Park ,  Nakyoung Han ,  Sangyong Park

公开(公告)号：US12178030B2

公开(公告)日：2024-12-24

申请号：US17897649

申请日：2022-08-29

Applicant: LG DISPLAY CO., LTD.

Inventor： Dongwon Jang ,  Kou Choi

IPC: H05K9/00 ,  H05K5/03 ,  H05K7/20

Abstract: A display device has an anti-static layer extending from a cover member along a side surface of a display panel to an inner surface of a hole of a cushion plate. Thus, a contact area between the anti-static layer and the display panel may be increased, thereby reducing a brighter phenomenon and a greenish phenomenon at a distal end of the display panel.

公开(公告)号：US12176357B2

公开(公告)日：2024-12-24

申请号：US17539613

申请日：2021-12-01

Applicant: LG DISPLAY CO., LTD.

Inventor： Jae Young Oh ,  Heechul Woo

IPC: H01L27/32 ,  H01L27/12 ,  H01L51/00 ,  H01L51/52 ,  H01L51/56 ,  H10K50/844 ,  H10K59/12 ,  H10K59/121 ,  H10K59/122 ,  H10K59/124 ,  H10K71/00 ,  H10K77/10 ,  H10K85/10 ,  H10K59/35 ,  H10K59/65 ,  H10K59/80

Abstract: An organic light emitting display device includes a first display area having a plurality of sub-pixel areas therein and a second display area having a plurality of sub-pixel areas and a plurality of transmissive areas therein. The organic light emitting display device includes a plastic substrate including a first portion corresponding to the first display area and a second portion corresponding to the second display area; a plurality of thin film transistors on the plastic substrate to correspond to the plurality of sub-pixel areas; and a plurality of organic light emitting elements on the plurality of thin film transistors to correspond to the plurality of sub-pixel areas, wherein the second portion includes polyimide and a ligand compound, and the first portion includes polyimide with the ligand compound absent therein.

公开(公告)号：US12175940B2

公开(公告)日：2024-12-24

申请号：US18426934

申请日：2024-01-30

Applicant: LG DISPLAY CO., LTD.

Inventor： Jae-Min Kim ,  Bong-Hwan Kim

IPC: G09G3/3266 ,  H10K59/121

Abstract: A light emitting display device in which odd scan stages receive odd first and second scan clocks alternately, and even scan stages receive an even scan clock, in a multi-frequency mode in which a first region is driven at a higher frequency than a second region, an odd first scan clock is provided to a n+5-th scan stage at a begin of the second region, an even scan clock is provided to a n+4-th scan stage at an end of the first region, and an odd second scan clock is provided to a n+3-th scan stage of the first region, and in the multi-frequency mode, during a driving frame of refreshing the first region and refresh-skipping the second region, the odd first scan clock does not have an i+2-th clock pulse corresponding to a scan pulse of the n+4-th first scan line.

公开(公告)号：US12175911B2

公开(公告)日：2024-12-24

申请号：US18073306

申请日：2022-12-01

Applicant: LG Display Co., Ltd.

Inventor： YeoMyeong Yoon ,  Li-Jin Kim ,  HyunJun Min

IPC: G09G3/20 ,  G09G3/3233

Abstract: A luminance difference correction method and a light emitting display apparatus using the same is discussed. The luminance difference correction method can include receiving by an camera an image, which is output from a camera region of a light emitting display panel and is reflected by at least one of a reflector or a cover glass associated with the apparatus. The method can further include analyzing by a controller the image received by the camera, and varying a level of at least one of (i) a gamma voltage used to generate a data voltage to be output to data lines included in the light emitting display panel, and (ii) one or more of driving voltages supplied to pixels included in the light emitting display panel.

公开(公告)号：US20240423072A1

公开(公告)日：2024-12-19

申请号：US18743922

申请日：2024-06-14

Applicant: LG DISPLAY CO., LTD.

Inventor： Howon CHOI ,  Taehyeon KIM

IPC: H10K59/80 ,  H10K59/122 ,  H10K102/10

Abstract: A display apparatus includes a substrate including a plurality of subpixels; a pattern portion having a concave shape and disposed between adjacent subpixels of the plurality of the subpixels; and a reflective portion disposed on the pattern portion, wherein each of the plurality of the subpixels includes a light emitting layer disposed on the substrate; and a nano-lens portion including a plurality of nano-lenses, and disposed between the light emitting layer and the substrate and spaced apart from the reflective portion, thereby improving a light extraction efficiency of light emitted from the light emitting layer.

公开(公告)号：US20240423020A1

公开(公告)日：2024-12-19

申请号：US18814302

申请日：2024-08-23

Applicant: LG Display Co., Ltd.

Inventor： Howon Choi

IPC: H10K59/121 ,  H10K59/12 ,  H10K59/122 ,  H10K59/124 ,  H10K71/00

Abstract: A display apparatus includes a substrate including an emission area and a non-emission area surrounding the emission area, a planarization layer formed on the substrate, a light emitting device disposed on the planarization layer, and including an anode electrode, and a separation layer disposed to be spaced apart from the anode electrode on the planarization layer, wherein the planarization layer is formed to overlap at least a portion of the non-emission area and includes a trench portion formed by removing at least a portion of the planarization layer, the trench portion at least partially overlaps an end of each of the anode electrode and the separation layer in the non-emission area, the light emitting device further including a light emitting layer and a cathode electrode sequentially formed on the anode electrode, and the light emitting layer and the cathode electrode are discontinuously formed in the trench portion.

公开(公告)号：US20240421264A1

公开(公告)日：2024-12-19

申请号：US18706161

申请日：2021-11-01

Applicant: LG ELECTRONICS INC. ,  LG DISPLAY CO., LTD.

Inventor： Hongcheol LEE ,  Doohwan YANG ,  Youngdo KIM

IPC: H01L33/48 ,  H01L25/16 ,  H01L33/62

Abstract: A display device includes a substrate, a first assembly wiring and second assembly wiring on the substrate, a first insulating layer on the first and second assembly wirings, a barrier wall comprising a hole on the first insulating layer, a semiconductor light emitting device in the hole, and a connection part is configured to electrically connect a side of the semiconductor light emitting device and at least one assembly wiring of the first and second assembly wirings. A gap between an inner surface of the hole and an outer surface of the semiconductor light emitting device is 50% to 200% of a thickness of the semiconductor light emitting device.