公开(公告)号：US20220223772A1

公开(公告)日：2022-07-14

申请号：US17445801

申请日：2021-08-24

Applicant: Samsung Display Co., Ltd.

Inventor： Chang Hee LEE ,  Young Il KIM ,  Hyo Jin KO ,  Dong Hoon KWAK ,  Dong Uk KIM ,  Se Hun KIM ,  Ji Yoon KIM

IPC: H01L33/62 ,  H01L25/075 ,  H01L27/12 ,  H01L33/00 ,  H01L33/24

Abstract: A light emitting diode includes: a first semiconductor layer; an active layer located on one surface of the first semiconductor layer; a second semiconductor layer located on one surface of the active layer; an electrode layer located on one surface of the second semiconductor layer; and a bonding electrode layer located on the other surface of the first semiconductor layer.

公开(公告)号：US20220140186A1

公开(公告)日：2022-05-05

申请号：US17310745

申请日：2019-08-20

Applicant: Samsung Display Co., Ltd.

Inventor： Jung Hong MIN ,  Dae Hyun KIM ,  Dong Uk KIM ,  Hyun Min CHO ,  Se Young KIM ,  Seung A LEE ,  Hyung Rae CHA

IPC: H01L33/24 ,  H01L33/38 ,  H01L27/15 ,  H01L33/62

Abstract: A light emitting element may include an emission stacked pattern including a first conductive semiconductor layer, an active layer, and a second conductive semiconductor layer that are stacked in a longitudinal direction of the emission stacked pattern. The active layer may include a first surface that is in contact with the first conductive semiconductor layer in the longitudinal direction of the emission stacked pattern, and a second surface that is opposite the first surface and is in contact with the second conductive semiconductor layer. The first conductive semiconductor layer may include at least one n-type semiconductor layer, and the second conductive semiconductor layer may include at least one p-type semiconductor layer. Further, the first surface of the active layer may be located at a point corresponding to −20% to +20% of half of a total length of the emission stacked pattern in the longitudinal direction of the emission stacked pattern.

公开(公告)号：US20220005991A1

公开(公告)日：2022-01-06

申请号：US17291398

申请日：2019-05-27

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Min CHO ,  Jung Hong MIN ,  Dae Hyun KIM ,  Dong Uk KIM

IPC: H01L33/62 ,  H01L33/00 ,  H01L33/38 ,  H01L27/15 ,  H01L33/16

Abstract: A light emitting element structure may include at least one light emitting element which is disposed on a substrate and spaced apart from each other, and extends in a direction perpendicular to the substrate; an auxiliary layer which is disposed on the substrate, exposes at least a portion of the upper surface of the substrate, and surrounds the outer surface of the light emitting element; a current spreading layer which is disposed on the auxiliary layer and electrically contacts an end of the light emitting element; a first pad which is electrically connected to the end of the light emitting element, disposed on the current spreading layer, and does not to overlap the light emitting element; and a second pad which is electrically connected to another end of the light emitting element disposed on the upper surface of the exposed substrate and spaced apart from the auxiliary layer.

公开(公告)号：US20210202450A1

公开(公告)日：2021-07-01

申请号：US17250826

申请日：2019-03-07

Applicant: Samsung Display Co., Ltd.

Inventor： Jung Hong MIN ,  Dong Uk KIM ,  Hyung Rae CHA ,  Dae Hyun KIM ,  Hyun Min CHO

IPC: H01L25/075 ,  G06F3/147 ,  H01L27/12 ,  H01L33/00 ,  H01L33/24 ,  H01L33/30 ,  H01L33/40 ,  H01L33/42 ,  H01L33/44 ,  H01L33/62

Abstract: A light emitting element includes a first semiconductor layer; an active layer on a surface of the first semiconductor layer; a second semiconductor layer on the active layer; an insulating film to enclose an outer periphery of each of the first semiconductor layer, the active layer, and the second semiconductor layer; and an electrode layer on the second semiconductor layer. The first semiconductor layer includes a first area that is covered by the insulating film, and a second area that is not covered by the insulating film. A perimeter of the outer periphery of the first semiconductor layer in the first area and a perimeter of the outer periphery of the first semiconductor layer in the second area are different from each other.

公开(公告)号：US20190319168A1

公开(公告)日：2019-10-17

申请号：US16352706

申请日：2019-03-13

Applicant: Samsung Display Co., Ltd.

Inventor： Dong Uk KIM

IPC: H01L33/20 ,  H01L33/06 ,  H01L27/15 ,  H01L33/50 ,  H01L33/58

Abstract: A display device includes: a substrate including a display region and a non-display region; a plurality of pixels provided in the display region, the plurality of pixels including first to third sub-pixels each having a light emitting region configured to light; a first light emitting element that is provided in each of the first and second sub-pixels and emits first color light, and a second light emitting element that is provided in the third sub-pixel and emits second color light; and a color conversion layer corresponding to each of the first and second sub-pixels, the color conversion layer converting the first color light into light of a set color for each corresponding sub-pixel.

公开(公告)号：US20240421256A1

公开(公告)日：2024-12-19

申请号：US18818017

申请日：2024-08-28

Applicant: Samsung Display Co., LTD.

Inventor： Young Chul SIM ,  Hyung Rae CHA ,  Dong Uk KIM ,  Sung Ae JANG ,  Ji Hyun HAM

IPC: H01L33/32 ,  H01L27/15 ,  H01L33/00 ,  H01L33/38 ,  H01L33/42

Abstract: A light emitting element includes a first semiconductor layer including a first type of semiconductor, the first semiconductor layer including a 1-1-th semiconductor layer and a 1-2-th semiconductor layer, which are arranged in a length direction of the light emitting element; a second semiconductor layer including a second type of semiconductor different from the first type; an active layer disposed between the 1-2-th semiconductor layer and the second semiconductor layer; and an intermediate layer disposed between the 1-1-th semiconductor layer and the 1-2-th semiconductor layer and having a porous structure.

公开(公告)号：US20240365636A1

公开(公告)日：2024-10-31

申请号：US18538549

申请日：2023-12-13

Applicant: Samsung Display Co., LTD.

Inventor： Chaun Gi CHOI ,  Dong Uk KIM ,  Hyun Ho KIM ,  Hyoeng Ki KIM

IPC: H10K59/40 ,  G06F3/041 ,  G06F3/044 ,  H10K59/131

CPC classification number: H10K59/40 ,  G06F3/04164 ,  G06F3/0443 ,  H10K59/131 ,  G06F2203/04111

Abstract: A display device includes a display panel including a display area including light-emitting elements and a non-display area including display pads and touch pads. The display panel may include touch electrodes disposed on the light-emitting elements in the display area, touch lines electrically connected to the touch electrodes and extended to the non-display area, and a switching circuit electrically connected to the touch lines through input pads in the non-display area and switching connections between the touch lines and touch connection lines electrically connected to the touch pads. The input pads are disposed in a contact area of the non-display area. The contact area of the non-display area is an area on which inorganic films are stacked.

公开(公告)号：US20230369542A1

公开(公告)日：2023-11-16

申请号：US18024544

申请日：2020-12-16

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Min CHO ,  Dong Uk KIM ,  Se Young KIM ,  Seung Geun LEE ,  Seung A LEE ,  Yo Han LEE ,  Sung Ae JANG ,  Hyung Rae CHA ,  Ji Hyun HAM

IPC: H01L33/44 ,  H01L25/16 ,  H01L33/00

CPC classification number: H01L33/44 ,  H01L25/167 ,  H01L33/0093 ,  H01L2933/0025

Abstract: A light-emitting device includes a light-emitting device core including a first semiconductor layer, a second semiconductor layer disposed on the first semiconductor layer, and an element active layer disposed between the first semiconductor layer and the second semiconductor layer; a first insulating layer disposed on the side surface of the light-emitting device core to surround the side surface of the light-emitting device core, and having first fixed charges; and a second insulating layer surrounding the outer side surface of the first insulating layer, and including a material having second fixed charges different from the first fixed charges.

公开(公告)号：US20230215983A1

公开(公告)日：2023-07-06

申请号：US18093959

申请日：2023-01-06

Applicant: Samsung Display Co., LTD.

Inventor： Mi Hyang SHEEN ,  Yun Hyuk KO ,  Dong Uk KIM ,  Na Ri AHN ,  Chang Hee LEE ,  Do Hyung KIM ,  Ran KIM ,  In Pyo KIM ,  Ki Young YEON ,  Je Won YOO ,  Joo Hee LEE ,  Sang Ho JEON ,  Jung Woon JUNG ,  Chan Woo JOO ,  Jin Young CHOI ,  Na Mi HONG ,  Jong Il KIM ,  Jin Ho BYUN ,  Sang Ho OH ,  Jae Kwang LEE ,  Yong Seok CHOI ,  Jong Hoon HA

IPC: H01L33/38 ,  H01L25/075 ,  H01L33/20 ,  H01L33/00 ,  H01L33/62

CPC classification number: H01L33/382 ,  H01L25/0753 ,  H01L33/20 ,  H01L33/005 ,  H01L33/62 ,  H01L2933/0016

Abstract: A method for fabricating a light emitting element includes preparing a substrate, and forming a first semiconductor material layer, a light emitting material layer, a second semiconductor material layer and an electrode material layer on the substrate, forming semiconductor rods spaced apart from each other by etching the first semiconductor material layer, the light emitting material layer, the second semiconductor material layer and the electrode material layer in a direction perpendicular to an upper surface of the substrate, forming an insulating layer surrounding sides of the semiconductor rods through a sol-gel process by immersing the substrate, including the semiconductor rods, in a solution containing a precursor material, and forming light emitting elements by separating the semiconductor rods, including the insulating layer, from the substrate, and the light emitting elements have an external quantum efficiency of 20.2±0.6%.

公开(公告)号：US20230066350A1

公开(公告)日：2023-03-02

申请号：US17662205

申请日：2022-05-05

Applicant: Samsung Display Co., Ltd.

Inventor： Young Chul SIM ,  Jin Wan KIM ,  Dong Uk KIM ,  Dong Kyun SEO ,  Byung Ju LEE ,  Seung Geun LEE ,  Hyung Rae CHA

IPC: H01L33/30 ,  H01L33/18

Abstract: A light emitting element may include: a light emitting element core including a first semiconductor layer, a second semiconductor layer, and a light emitting layer between the first semiconductor layer and the second semiconductor layer; and a single crystal insulating layer around a side surface of the light emitting element core.