公开(公告)号：US20230056650A1

公开(公告)日：2023-02-23

申请号：US17977968

申请日：2022-10-31

Applicant: LG DISPLAY CO., LTD.

Inventor： Seong Hwan JU ,  Hyeon Ho SON ,  Jin Yeong KIM ,  Jung Eun SON ,  Hanchul PARK ,  Hyunwoo KIM

IPC: H01L25/16 ,  H01L33/44 ,  H01L33/62

Abstract: The present disclosure relates to a micro light emitting diode (LED) display device including a substrate having a plurality of thin film transistors thereon; a plurality of micro light emitting devices (LEDs) on an upper surface of the substrate, the micro LEDs each having a protecting film provided with a first contact hole to expose a portion of an upper surface of a corresponding micro LED; at least one insulating layer covering the micro LED, the insulating layer provided with a second contact hole to expose a portion of the upper surface of the corresponding micro LED; and a connection electrode in the first contact hole and the second contact hole configured to transfer signals to the micro LED, wherein the first contact hole is larger than the second contact hole.

公开(公告)号：US20250022864A1

公开(公告)日：2025-01-16

申请号：US18896638

申请日：2024-09-25

Applicant: LG DISPLAY CO., LTD.

Inventor： Seong Hwan JU ,  Hyeon Ho SON ,  Jin Yeong KIM ,  Jung Eun SON ,  Hanchul PARK ,  Hyunwoo KIM

IPC: H01L25/16 ,  H01L33/32 ,  H01L33/36 ,  H01L33/44 ,  H01L33/62

Abstract: The present disclosure relates to a micro light emitting diode (LED) display device including a substrate having a plurality of thin film transistors thereon; a plurality of micro light emitting devices (LEDs) on an upper surface of the substrate, the micro LEDs each having a protecting film provided with a first contact hole to expose a portion of an upper surface of a corresponding micro LED; at least one insulating layer covering the micro LED, the insulating layer provided with a second contact hole to expose a portion of the upper surface of the corresponding micro LED; and a connection electrode in the first contact hole and the second contact hole configured to transfer signals to the micro LED, wherein the first contact hole is larger than the second contact hole.

公开(公告)号：US20220216376A1

公开(公告)日：2022-07-07

申请号：US17701590

申请日：2022-03-22

Applicant: LG Display Co., Ltd.

Inventor： Hyunwoo KIM ,  Jinyeong KIM

IPC: H01L33/44 ,  H01L25/075 ,  H01L33/62 ,  H01L33/20 ,  H01L27/12 ,  H01L33/06 ,  H01L33/32 ,  H01L33/38 ,  H01L33/50 ,  H01L33/60

Abstract: A light-emitting device and a display including the same can improve the process stability during the process of disposing the light-emitting device. A light-emitting device includes the n-type semiconductor layer and the p-type semiconductor layer, and a structure is disposed so as to minimize electrical short between electrodes even if the light-emitting device is misaligned. The structure may have at least one side surface in an inverted taper shape and may be disposed between electrodes to minimize a short-circuit therebetween during the process of connecting the electrodes.

公开(公告)号：US20170371198A1

公开(公告)日：2017-12-28

申请号：US15608628

申请日：2017-05-30

Applicant: LG DISPLAY CO., LTD.

Inventor： Hyunwoo KIM

IPC: G02F1/1333 ,  G02F1/167 ,  G02F1/1335 ,  H01L51/50 ,  H01L51/00

CPC classification number: G02F1/133308 ,  G02F2001/133314 ,  G02F2001/133322 ,  G02F2201/465 ,  H01L51/0006 ,  H01L51/5012

Abstract: The present disclosure relates to a display device including a display module, cover bottom, a PCB, and a cover shield. The PCB includes a guide hole formed therethrough in a thickness direction and coupled to the cover bottom to be disposed on a rear surface of the cover bottom. The cover shield includes a guide protrusion configured to protrude from one surface at a position corresponding to the guide hole to be inserted into the guide hole and configured to be coupled to the cover bottom to cover the PCB. Accordingly, the cover shield is configured in such a way that the guide protrusion of the cover shield is inserted into the guide hole of the PCB interposed between the cover bottom and the cover shield while the cover shield is coupled to the cover bottom, thereby more easily and accurately guiding an assembly position of the cover shield.

公开(公告)号：US20240170616A1

公开(公告)日：2024-05-23

申请号：US18424800

申请日：2024-01-27

Applicant: LG DISPLAY CO., LTD.

Inventor： Hyunwoo KIM ,  Jinyeong KIM

IPC: H01L33/44 ,  H01L25/075 ,  H01L33/20 ,  H01L33/38 ,  H01L33/50 ,  H01L33/60 ,  H01L33/62

CPC classification number: H01L33/44 ,  H01L25/0753 ,  H01L33/20 ,  H01L33/38 ,  H01L33/507 ,  H01L33/60 ,  H01L33/62

Abstract: A display device includes a substrate; a thin-film transistor including an active area, a source electrode, and a drain electrode disposed on the substrate; a passivation layer disposed on the thin-film transistor; a light-emitting device disposed on the passivation layer and including a first electrode, a second electrode, and a structure disposed between the first electrode and the second electrode; a planarization layer disposed on the passivation layer to cover a side surface of the light-emitting device; a pixel electrode electrically connected to the drain electrode of the thin-film transistor through a first contact hole in the passivation layer and the planarization layer, and electrically connected to the first electrode through a second contact hole in the planarization layer; and a common electrode electrically connected to the second electrode through a third contact hole formed in the planarization layer.

公开(公告)号：US20240220045A1

公开(公告)日：2024-07-04

申请号：US18389501

申请日：2023-11-14

Applicant: LG Display Co., Ltd.

Inventor： HongJu LEE ,  Hyunwoo KIM ,  JaeKyu PARK

IPC: G06F3/041

CPC classification number: G06F3/0416

Abstract: A touch display device can include a plurality of touch electrodes disposed on or in a display panel; and a touch driving circuit configured to drive the plurality of touch electrodes by outputting a touch driving signal having a first level period and a second level period. Also, the touch driving circuit includes a current regulator configured to receive an input current from at least one of the plurality of touch electrodes during at least a partial period of the first level period and at least a partial period of the second level period of the touch driving signal, and scale down the input current to a first current and output the first current; and a converting integrator configured to output a sensing voltage based on the first current or a second current adjusted from the first current.

公开(公告)号：US20240105125A1

公开(公告)日：2024-03-28

申请号：US18361741

申请日：2023-07-28

Applicant: LG Display Co., Ltd.

Inventor： Beom-Jin KIM ,  Hyunwoo KIM ,  Bongchoon KWAK ,  HongJu LEE

IPC: G09G3/3275 ,  G09G3/3266

CPC classification number: G09G3/3275 ,  G09G3/3266 ,  G09G2310/0286 ,  G09G2310/0291 ,  G09G2310/0294 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2320/0673

Abstract: Embodiments of the disclosure relate to a display device and a data driving circuit. Specifically, there may be provided a display device comprising a display panel where a plurality of gate lines, a plurality of data lines, and a plurality of subpixels are disposed, a gate driving circuit configured to supply scan signals to the plurality of gate lines, a data driving circuit configured to convert digital image data into an analog data voltage and supply the analog data voltage to the plurality of data lines, a timing controller configured to control the gate driving circuit and the data driving circuit, a first gamma circuit generating a first gamma voltage corresponding to a first pixel during a period corresponding to a first color selection signal, and a second gamma circuit generating a second gamma voltage corresponding to a second pixel during a period corresponding to a second color selection signal different from the first color selection signal.

公开(公告)号：US20190181301A1

公开(公告)日：2019-06-13

申请号：US16046037

申请日：2018-07-26

Applicant: LG Display Co., Ltd.

Inventor： Hyunwoo KIM ,  Jinyeong KIM

IPC: H01L33/44 ,  H01L25/075 ,  H01L27/12 ,  H01L33/06 ,  H01L33/32 ,  H01L33/38 ,  H01L33/50 ,  H01L33/60 ,  H01L33/62

Abstract: A light-emitting device and a display including the same can improve the process stability during the process of disposing the light-emitting device. A light-emitting device includes the n-type semiconductor layer and the p-type semiconductor layer, and a structure is disposed so as to minimize electrical short between electrodes even if the light-emitting device is misaligned. The structure may have at least one side surface in an inverted taper shape and may be disposed between electrodes to minimize a short-circuit therebetween during the process of connecting the electrodes.