公开(公告)号：US20220216382A1

公开(公告)日：2022-07-07

申请号：US17607613

申请日：2019-05-07

Applicant: LG ELECTRONICS INC.

Inventor： Sangdae PARK ,  Sungjin PARK ,  Jaegwang UM ,  Hwankuk YUH

IPC: H01L33/60 ,  H01L25/075

Abstract: Discussed is a display device using a semiconductor light emitting diode disposed on a substrate, a planarization layer stacked on the substrate while defining a hole that is a region in which the semiconductor light emitting diode is disposed, a light-transmitting layer filling the hole, and a reflective layer formed along at least one surface of the substrate and the planarization layer defining an inner surface of the hole, wherein the hole is formed so that a width thereof expands as a distance from the substrate increases.

公开(公告)号：US20210167177A1

公开(公告)日：2021-06-03

申请号：US17268325

申请日：2019-08-12

Applicant: LG ELECTRONICS INC. ,  UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

Inventor： Jaegwang UM ,  Sunghwan KIM ,  Jin JANG

IPC: H01L29/417 ,  H01L29/786 ,  H01L29/66 ,  H01L25/16 ,  H01L27/12

Abstract: Discussed is a display device including a substrate, a thin film transistor formed on the substrate, the thin film transistor including a source electrode, a drain electrode, and a gate electrode, and a plurality of semiconductor light emitting devices emitting light so as to each form individual pixels and each having a p-type electrode and an n-type electrode, wherein at least one of the plurality of of the semiconductor light emitting devices is disposed so that one of the p-type electrode and the n-type electrode overlaps the source electrode of the thin film transistor.

公开(公告)号：US20230290916A1

公开(公告)日：2023-09-14

申请号：US18014012

申请日：2020-07-03

Applicant: LG ELECTRONICS INC.

Inventor： Jaegwang UM ,  Dohyung LEE ,  Sungguk LEE ,  Sangdae PARK ,  Hwankuk YUH ,  Sunju LEE

IPC: H01L33/62 ,  H01L25/075 ,  H01L25/16 ,  H01L27/12

CPC classification number: H01L33/62 ,  H01L25/0753 ,  H01L25/167 ,  H01L27/124

Abstract: The present invention is applicable to a display device-related technical field, and relates to, for example, a display device using a micro light-emitting diode (LED). The present invention provides the display device using an LED, wherein the display device may comprise: a thin film transistor (TFT) substrate including a TFT for driving an active matrix and a connection pad connected to the TFT; a light-emitting package including a unit pixel disposed on the TFT substrate and electrically connected to the connection pad, and including a transparent resin layer, a wiring layer positioned on the TFT substrate, and at least one LED positioned between the TFT substrate and the transparent resin layer, electrically connected to the wiring layer, and each forming a sub-pixel; and connection wiring electrically connecting the wiring layer and the connection pad to each other.

公开(公告)号：US20230087374A1

公开(公告)日：2023-03-23

申请号：US17909232

申请日：2020-07-29

Applicant: LG ELECTRONICS INC.

Inventor： Sungguk LEE ,  Dohyung LEE ,  Sangdae PARK ,  Jaegwang UM

IPC: H01L27/12 ,  H01L25/16

Abstract: Discussed is a display device using a micro light-emitting diode (LED) and a module-type display device where the display device can include a first substrate having a first surface and a second surface, and further having a first electrode placed on the first surface and a second electrode placed on the second surface and electrically connected to the first electrode, a second substrate placed on the first substrate and including a connection wire that defines multiple individual pixel regions, the second substrate being placed on the first substrate so as to have an exposure part through which at least a part of the first electrode of the first substrate is exposed, a connection electrode connecting the first electrode of the first substrate to the connection wire of the second substrate while being in contact with the exposure part, and light-emitting diodes connected to the connection wire of the second substrate.

公开(公告)号：US20230275200A1

公开(公告)日：2023-08-31

申请号：US18016220

申请日：2020-07-17

Applicant: LG ELECTRONICS INC.

Inventor： Dohyung LEE ,  Sangdae PARK ,  Hwankuk YUH ,  Jaegwang UM

IPC: H01L33/62 ,  H01L25/16 ,  H01L27/12

CPC classification number: H01L33/62 ,  H01L25/167 ,  H01L27/124 ,  H01L2933/0066

Abstract: Discussed is a display device that can include a base portion including a plurality of pixel areas, a plurality of semiconductor light-emitting elements disposed in the plurality of pixel areas, and a plurality of thin-film transistors disposed in the plurality of pixel areas and driving the plurality of semiconductor light-emitting elements. The plurality of pixel areas can include a first sub-pixel area in which a red semiconductor light-emitting element is dispose,; a second sub-pixel area in which a green semiconductor light-emitting element is disposed, a third sub-pixel area in which a blue semiconductor light-emitting element is disposed, and a fourth sub-pixel area in which any one of the red, green, and blue semiconductor light-emitting elements may be disposed. The thin-film transistors are respectively disposed in the first to fourth sub-pixel areas.

公开(公告)号：US20230268476A1

公开(公告)日：2023-08-24

申请号：US18027558

申请日：2020-09-22

Applicant: LG ELECTRONICS INC.

Inventor： Sungguk LEE ,  Dohyung LEE ,  Sangdae PARK ,  Hwankuk YUH ,  Jaegwang UM

IPC: H01L33/62 ,  H01L33/38 ,  H01L25/075 ,  H01L27/12 ,  H01L25/16

CPC classification number: H01L33/62 ,  H01L33/382 ,  H01L25/0753 ,  H01L27/124 ,  H01L25/167

Abstract: The present invention can be applied to a technical field regarding a display device, and relates to, for example, a display device using a micro light emitting diode (LED) and a modular display device using same. The display device of the present invention may comprise: a first substrate comprising a first electrode located on a first surface and a second electrode located on a second surface which is an opposite surface to the first surface; a second substrate located on the first substrate and comprising a connection wire that defines multiple individual pixel regions, the second substrate being located on the first substrate so as to have an exposure portion exposing at least a portion of the first electrode on the first substrate; a connection electrode which contacts the exposure portion through the side surface of the second substrate to connect the first electrode of the first substrate to the connection wire of the second substrate; and a light emitting device connected to the connection wire of the second substrate.

公开(公告)号：US20230307597A1

公开(公告)日：2023-09-28

申请号：US18013744

申请日：2020-07-03

Applicant: LG ELECTRONICS INC.

Inventor： Jaegwang UM ,  Dohyung LEE ,  Sangdae PARK ,  Hwankuk YUH

IPC: H01L33/62 ,  H01L25/075 ,  H01L25/16 ,  H01L27/12 ,  G02F1/13357

CPC classification number: H01L33/62 ,  H01L25/0753 ,  H01L25/167 ,  H01L27/124 ,  G02F1/133603

Abstract: The present invention can be applied to the technical field of display devices, and relates to a display device using, for example, a micro light emitting diode (LED). A display device using a light emitting diode according to the present invention may comprise: a thin film transistor (TFT) substrate which includes a TFT for driving an active matrix and a connection pad connected to the TFT; a light emitting package including a unit pixel which is positioned on the TFT substrate and electrically connected to the connection pad, wherein the light emitting package includes a transparent resin layer, a wiring layer positioned on the TFT substrate, and at least two light emitting diodes which are connected to each other in series and are each positioned between the TFT substrate and the transparent resin layer and electrically connected to the wiring layer to form a sub pixel; and a connection wire electrically connecting the wiring layer and the connection pad.

公开(公告)号：US20230290918A1

公开(公告)日：2023-09-14

申请号：US18018493

申请日：2020-08-06

Applicant: LG ELECTRONICS INC.

Inventor： Sungguk LEE ,  Dohyung LEE ,  Sangdae PARK ,  Hwankuk YUH ,  Jaegwang UM

IPC: H01L33/62 ,  H01L25/075

CPC classification number: H01L33/62 ,  H01L25/0753

Abstract: Provided is a display device. The display device includes a substrate, a display panel including a display disposed on a front surface of the substrate and a flexible base material extending from the display to surround a portion of each of a side surface and a rear surface of the substrate, and a support layer disposed between the side surface of the substrate and the flexible base material to support the flexible base material. The flexible base material includes: a pair of curved portions spaced apart from the support layer and a side cover portion that is configured to connect the pair of curved portions to each other and is in contact with the support layer.

公开(公告)号：US20230207739A1

公开(公告)日：2023-06-29

申请号：US17996211

申请日：2020-04-13

Applicant: LG ELECTRONICS INC.

Inventor： Sangdae PARK ,  Dohyung LEE ,  Sungguk LEE ,  Hwankuk YUH ,  Jaegwang UM

IPC: H01L33/38 ,  H01L25/075 ,  H01L33/62 ,  H01L33/00 ,  G09F9/302 ,  G09F9/33

CPC classification number: H01L33/387 ,  G09F9/33 ,  G09F9/3026 ,  H01L25/0753 ,  H01L33/005 ,  H01L33/62 ,  H01L2933/0016 ,  H01L2933/0066

Abstract: A display device according to an embodiment of the present invention includes a first substrate, a plurality of semiconductor light emitting devices disposed in an array form on an upper surface of the first substrate, a first wiring electrode formed on the upper surface of the first substrate and electrically connected to the plurality of semiconductor light emitting devices, a first electrode pad formed in an area including an upper edge of the first substrate and connected to the first wiring electrode and a side electrode formed on a side surface of the first substrate and having one end in contact with a side surface of the first electrode pad. And a thickness of the first electrode pad can be greater than a thickness of the first wiring electrode.