公开(公告)号：US20170309761A1

公开(公告)日：2017-10-26

申请号：US15643180

申请日：2017-07-06

Applicant: LG ELECTRONICS INC.

Inventor： Jungmin HA ,  Sungjin KIM ,  Juhwa CHEONG ,  Junyong AHN ,  Hyungwook CHOI ,  Wonjae CHANG ,  Jaesung KIM

IPC: H01L31/0224 ,  H01L31/18 ,  H01L31/0216 ,  H01L31/02 ,  H01L31/0368 ,  H01L31/0747 ,  H01L31/077

CPC classification number: H01L31/022433 ,  H01L31/0201 ,  H01L31/02167 ,  H01L31/02168 ,  H01L31/022425 ,  H01L31/03685 ,  H01L31/0747 ,  H01L31/077 ,  H01L31/1824 ,  H01L31/1864 ,  H01L31/1868 ,  Y02E10/50

Abstract: A method for manufacturing a solar cell can include a tunnel layer forming step of forming a tunnel layer on a first surface of a semiconductor substrate, a first conductive type semiconductor region forming step of forming a first conductive type semiconductor region on the first surface of the semiconductor substrate, a second conductive type semiconductor region forming step of forming a second conductive type semiconductor region by doping impurities of a second conductive type into a second surface of the semiconductor substrate, a first passivation film forming step of forming a first passivation film on the first conductive type semiconductor region and an electrode forming step of forming a first electrode connected to the first conductive type semiconductor region and a second electrode connected to the second conductive type semiconductor region.

公开(公告)号：US20240421258A1

公开(公告)日：2024-12-19

申请号：US18709423

申请日：2021-11-12

Applicant: LG ELECTRONICS INC.

Inventor： Wonjae CHANG ,  Chilkeun PARK ,  Jaewon CHANG

IPC: H01L33/40 ,  H01L25/075 ,  H01L33/38 ,  H01L33/44 ,  H01L33/62

Abstract: The display device includes a substrate, a first and second assembly wirings on the substrate, a partition having a hole on the first and second assembly wirings, and a semiconductor light emitting device in the hole, wherein the hole configured to have an inner side with a first obtuse angle to a lower side, and wherein the semiconductor light emitting device configured to have at least one side having a second obtuse angle with respect to the lower side.

公开(公告)号：US20240030182A1

公开(公告)日：2024-01-25

申请号：US18224319

申请日：2023-07-20

Applicant: LG ELECTRONICS INC.

Inventor： Wonjae CHANG ,  Sunghyun HWANG ,  Chunghyun LIM ,  Minwoo LEE ,  Myoungsoo KIM

IPC: H01L23/00 ,  H01L33/44 ,  H01L33/38

CPC classification number: H01L24/95 ,  H01L33/44 ,  H01L33/38 ,  H01L2224/95085 ,  H01L2224/95144 ,  H01L2924/01028

Abstract: Embodiment relates to a semiconductor light emitting device for a display pixel and a display device including the same. A semiconductor light emitting device for a display pixel according to an embodiment includes a light emitting structure including a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer, the first conductivity type semiconductor layer in the semiconductor light emitting device for a display pixel, a first contact electrode electrically connected to, a metal layer disposed under the first conductivity-type semiconductor layer, a second contact electrode disposed on the second conductivity-type semiconductor layer, and a passivation disposed on the light emitting structure may contain layers. The metal layer may include a magnetic material, and a weight ratio of the magnetic material to the weight of the semiconductor light emitting device may be 0.25% to 36.75%.

公开(公告)号：US20230415483A1

公开(公告)日：2023-12-28

申请号：US18034782

申请日：2020-11-06

Applicant: LG ELECTRONICS INC.

Inventor： Wonjae CHANG ,  Jinsung KIM ,  Byungjun KANG ,  Myoungsoo KIM ,  Junghoon KIM

IPC: B41J2/145 ,  B41J2/10 ,  B41J2/045

CPC classification number: B41J2/145 ,  B41J2/10 ,  B41J2/04573

Abstract: An inkjet head device comprises a body comprising light emitting devices, a nozzle installed on a lower side of the body to spray the light emitting devices onto the substrate in units of droplets, and a first guide part disposed in the body to guide the light emitting devices to the nozzle in a line. Since the light emitting devices arranged in a line by the first guide part are dropped on the substrate in units of a predetermined amount of droplets, the number of light emitting devices included in each droplet may be the same or similar. Thus, since the same or similar number of light-emitting elements are disposed or aligned in each sub-pixel, the luminance in each sub-pixel obtained by the light-emitting elements can be uniform.

公开(公告)号：US20230378141A1

公开(公告)日：2023-11-23

申请号：US18030394

申请日：2020-10-13

Applicant: LG ELECTRONICS INC.

Inventor： Myoungsoo KIM ,  Jinsung KIM ,  Wonjae CHANG ,  Byungjun KANG ,  Junghoon KIM

IPC: H01L25/075 ,  H01L33/62

CPC classification number: H01L25/0753 ,  H01L33/62

Abstract: A display device comprises a substrate comprises a substrate comprising a plurality of sub pixels, a first electrode in the plurality of sub pixels, a second electrode in the plurality of sub pixels, and adjacent to the first electrode, a first magnetic layer between the first electrode and the second electrode, and a plurality of light emitting elements between the first electrode and the second electrode. The light emitting element comprises at least one second magnetic layer in contact with the magnetic layer.

公开(公告)号：US20220293823A1

公开(公告)日：2022-09-15

申请号：US17633520

申请日：2019-08-21

Applicant: LG ELECTRONICS INC.

Inventor： Wonjae CHANG ,  Jisoo KO ,  Hyeyoung YANG ,  Hyunwoo CHO

IPC: H01L33/38 ,  H01L33/62 ,  H01L27/15 ,  H01L33/00

Abstract: Provided in the present specification are a substrate structure having an exclusive design for allowing assembly on a substrate, at the same time, of a plurality of semiconductor light emitting devices having various colors, and a new type of semiconductor light emitting device, such that the semiconductor light emitting devices can be quickly and accurately assembled on the substrate with a concern about color mixing. Here, at least one of the plurality of semiconductor light emitting devices, according to one embodiment of the present invention, comprises a bump part located in the lateral direction of a surface to be assembled. An assembly groove in which the semiconductor light emitting device including the bump part is assembled is provided with a protrusion part facing toward the inside of the assembly groove.

公开(公告)号：US20220254961A1

公开(公告)日：2022-08-11

申请号：US17630320

申请日：2019-08-21

Applicant: LG ELECTRONICS INC.

Inventor： Wonjae CHANG ,  Jisoo KO ,  Hyeyoung YANG

IPC: H01L33/38 ,  H01L33/62 ,  H01L33/00 ,  H01L23/00 ,  H01L25/075

Abstract: Provided in the present specification is a novel structured semiconductor light-emitting element capable of preventing an electrode forming failure due to an arrangement error occurring during assembly or transfer of semiconductor light-emitting elements on a substrate, when a display device is implemented using the semiconductor light-emitting elements, wherein at least one of a plurality of semiconductor light-emitting elements according to one embodiment of the present disclosure comprises: a first conductive type semiconductor layer; a second conductive type semiconductor layer located on the first conductive type semiconductor layer; an active layer arranged between the first conductive type semiconductor layer and the second conductive type semiconductor layer; a second conductive type electrode located on the second conductive type semiconductor layer; and a first conductive type electrode located on at least a one-side stepped portion of the first conductive type semiconductor layer exposed by etching a portion of the second conductive type semiconductor layer and the active layer.

公开(公告)号：US20180277694A1

公开(公告)日：2018-09-27

申请号：US15995701

申请日：2018-06-01

Applicant: LG ELECTRONICS INC.

Inventor： Jungmin HA ,  Sungjin KIM ,  Juhwa CHEONG ,  Junyong AHN ,  Hyungwook CHOI ,  Wonjae CHANG ,  Jaesung KIM

IPC: H01L31/0224 ,  H01L31/0747 ,  H01L31/18 ,  H01L31/077 ,  H01L31/02 ,  H01L31/0368 ,  H01L31/0216

CPC classification number: H01L31/022433 ,  H01L31/0201 ,  H01L31/02167 ,  H01L31/02168 ,  H01L31/022425 ,  H01L31/03685 ,  H01L31/0747 ,  H01L31/077 ,  H01L31/1824 ,  H01L31/1864 ,  H01L31/1868 ,  Y02E10/50

Abstract: A solar cell can include a silicon semiconductor substrate having a first conductive type; a oxide layer on a first surface of the silicon semiconductor substrate; a polysilicon layer on the oxide layer and having the first conductive type; an emitter region at a second surface of the silicon semiconductor substrate opposite to the first surface and having a second conductive type opposite to the first conductive type; a first passivation film on the polysilicon layer; a first electrode connected to the polysilicon layer through an opening formed in the first passivation film; a second passivation film on the emitter region; and a second electrode connected to the emitter region through an opening formed in the second passivation film.

公开(公告)号：US20170005218A1

公开(公告)日：2017-01-05

申请号：US15196743

申请日：2016-06-29

Applicant: LG ELECTRONICS INC.

Inventor： Wonjae CHANG ,  Sungjin KIM ,  Juhwa CHEONG ,  Junyong AHN

IPC: H01L31/0745 ,  H01L31/0236 ,  H01L31/0224 ,  H01L31/18 ,  H01L31/0368 ,  H01L31/0216

Abstract: Disclosed is a solar cell including a semiconductor substrate, and a dopant layer disposed over one surface of the semiconductor substrate and having a crystalline structure different from that of the semiconductor substrate, the dopant layer including a dopant. The dopant layer includes a plurality of semiconductor layers stacked one above another in a thickness direction thereof, and an interface layer interposed therebetween. The interface layer is an oxide layer having a higher concentration of oxygen than that in each of the plurality of semiconductor layers.

Abstract translation: 公开了一种太阳能电池，包括半导体衬底和设置在半导体衬底的一个表面上并具有不同于半导体衬底的晶体结构的掺杂剂层，掺杂剂层包括掺杂剂。 掺杂剂层包括在其厚度方向上彼此层叠的多个半导体层，以及插入其间的界面层。 界面层是具有比多个半导体层中的每一个更高的氧浓度的氧化物层。

公开(公告)号：US20240250065A1

公开(公告)日：2024-07-25

申请号：US18290995

申请日：2021-07-21

Applicant: LG ELECTRONICS INC.

Inventor： Chilkeun PARK ,  Byoungkwon CHO ,  Wonseok CHOI ,  Wonjae CHANG

IPC: H01L25/065 ,  H01L27/12 ,  H01L33/62

CPC classification number: H01L25/0652 ,  H01L27/124 ,  H01L33/62

Abstract: The display device can include a substrate, a barrier rib having an assembly hole on the substrate, a semiconductor light emitting device in the assembly hole, and a first connection part disposed in the assembly hole and on the barrier rib and electrically connected to a side surface of the semiconductor light emitting device. In the embodiment, maximum luminance can always be obtained regardless of whether the assembling wirings disposed on the substrate are disposed on the same layer or different layers, and each pixel has constant luminance, thereby improving image quality due to luminance uniformity.