公开(公告)号：US11251389B2

公开(公告)日：2022-02-15

申请号：US16161802

申请日：2018-10-16

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyu-Nam Kim ,  Hye-Li Min ,  Min-Surk Hyung

IPC: H01L51/50 ,  H01L51/52 ,  H01L27/32

Abstract: A quantum dot, a quantum dot light emitting diode and a quantum dot display device are discussed. The quantum dot includes a first core including a first semiconductor material, a first shell positioned at an outer side of the first core and including a second semiconductor material, and a second core positioned between the first core and the first shell and including one of the first and second semiconductor materials and a doping metal.

公开(公告)号：US11050034B2

公开(公告)日：2021-06-29

申请号：US15700610

申请日：2017-09-11

Applicant: LG Display Co., Ltd.

Inventor： Tae-Yang Lee ,  Kyu-Nam Kim ,  Sung-Il Woo

IPC: H01L51/50 ,  H01L51/42 ,  H01L21/02 ,  F21V8/00 ,  G02F1/13357 ,  H01L27/32

Abstract: A quantum dot (QD) light emitting diode comprising first and second electrodes facing each other; a QD emitting material layer between the first and second electrodes; and a semiconducting member acting as a hole transporting path in the QD emitting material layer is provided.

公开(公告)号：US10217882B2

公开(公告)日：2019-02-26

申请号：US15702187

申请日：2017-09-12

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyung-Kook Jang ,  Byung-Geol Kim ,  Wy-Yong Kim ,  Kyu-Nam Kim ,  Sung-Il Woo

IPC: H01L31/0352 ,  F21V8/00 ,  H01L21/02 ,  C08K3/28 ,  G02B5/30 ,  G02F1/1335 ,  H01L51/52 ,  H01L33/58 ,  H01L51/00 ,  G09F9/30 ,  C09K11/00 ,  C09K11/08 ,  H01L33/50

Abstract: A quantum rod, a synthesis method of the quantum rod and a quantum rod display device are discussed. The quantum rod according to an embodiment includes a core, a first shell covering the core, and a second shell covering a side of the first shell. In the quantum rod, a first thickness of the first shell is greater than a second thickness of the second shell, and a first length of the first shell is smaller than a second length of the second shell.

公开(公告)号：US10287497B2

公开(公告)日：2019-05-14

申请号：US14956051

申请日：2015-12-01

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyu-Nam Kim ,  Jin-Wuk Kim ,  Byung-Geol Kim ,  Sung-Woo Kim ,  Kyung-Kook Jang ,  Hee-Yeol Kim ,  Sung-Il Woo

IPC: C09K11/88 ,  F21V9/14 ,  F21V8/00 ,  G02F2/02 ,  B82Y20/00

Abstract: A quantum rod luminescent display device includes a first substrate having a plurality of pixel regions; a plurality of first electrodes alternately arranged with a plurality of second electrodes in each of the plurality of pixel regions; a plurality of quantum rod compound layers over the first electrodes and the second electrodes, respectively in each of the plurality of pixel regions, each of the quantum rod compound layers including a quantum rod having a core, a shell surrounding the core, and an electron acceptor; a second substrate facing the first substrate; and a backlight unit at an outer surface of the first substrate. The electron acceptor is attached to or adjacent to the quantum rod.

公开(公告)号：US09228717B2

公开(公告)日：2016-01-05

申请号：US14552028

申请日：2014-11-24

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyu-Nam Kim ,  Jin-Wuk Kim ,  Byung-Geol Kim ,  Sung-Woo Kim ,  Kyung-Kook Jang ,  Hee-Yeol Kim ,  Sung-Il Woo

IPC: F21V9/14 ,  F21V8/00 ,  B82Y20/00

CPC classification number: C09K11/883 ,  B82Y20/00 ,  F21V9/14 ,  G02B6/0056 ,  G02F2/02 ,  Y10S977/762 ,  Y10S977/95

Abstract: A quantum rod luminescent display device includes a first substrate having a plurality of pixel regions; a plurality of first electrodes alternately arranged with a plurality of second electrodes in each of the plurality of pixel regions; a plurality of quantum rod compound layers over the first electrodes and the second electrodes, respectively in each of the plurality of pixel regions, each of the quantum rod compound layers including a quantum rod having a core, a shell surrounding the core, and an electron acceptor; a second substrate facing the first substrate; and a backlight unit at an outer surface of the first substrate. The electron acceptor is attached to or adjacent to the quantum rod.

Abstract translation: 量子棒发光显示装置包括具有多个像素区域的第一基板; 多个第一电极，在多个像素区域的每一个中与多个第二电极交替排列; 分别在多个像素区域的每个中的第一电极和第二电极上的多个量子棒化合物层，每个量子棒复合层包括具有芯的量子棒，围绕芯的壳和电子 受体; 面对所述第一基板的第二基板; 以及在所述第一基板的外表面处的背光单元。 电子受体附着在量子棒上或与量子棒相邻。

公开(公告)号：US10450507B2

公开(公告)日：2019-10-22

申请号：US15249302

申请日：2016-08-26

Applicant: LG Display Co., Ltd.

Inventor： Kyung-Kook Jang ,  Byung-Geol Kim ,  Wy-Yong Kim ,  Kyu-Nam Kim ,  Hee-Yeol Kim ,  Sung-Il Woo ,  Do-Hyung Kim ,  Tae-Yang Lee

IPC: C09K11/70 ,  H01L27/15 ,  C09K11/02 ,  C09K11/88 ,  C09K11/56 ,  G02F1/1335 ,  H01L33/50 ,  C09K11/08 ,  G02F1/13357 ,  H05B33/14 ,  H01L27/32 ,  G02F1/1368 ,  B82Y20/00 ,  B82Y40/00

Abstract: A quantum dot includes a seed and a core enclosing the seed. The core is grown from the seed to improve size uniformity of the core. The seed includes a first compound without Cd. The first compound may be GaP. The core may include a second compound including elements from group XIII and group XV. The second compound may be InP. The quantum dot may also include a first shell of a third compound enclosing the core. The third compound may be ZnSe or ZnS. The quantum dot may also include a second shell of a fourth compound enclosing the first shell. The fourth compound may be ZnS when the third compound is ZnSe. Embodiments also relate to a quantum dot including first to third elements selected from XIII group elements and XV group elements and fourth to sixth elements selected from XII group elements and XVI group elements.

公开(公告)号：US20190081263A1

公开(公告)日：2019-03-14

申请号：US16129123

申请日：2018-09-12

Applicant: LG Display Co., Ltd.

Inventor： Jae-Hyun Park ,  Kyu-Nam Kim ,  Young-Ju Ryu

IPC: H01L51/50 ,  H01L51/52

CPC classification number: H01L51/502 ,  B82Y20/00 ,  B82Y40/00 ,  G01N33/588 ,  G02B6/0229 ,  H01L21/02601 ,  H01L25/167 ,  H01L27/124 ,  H01L31/035218 ,  H01L33/06 ,  H01L51/426 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5092 ,  H01L51/5218 ,  H01L51/5221

Abstract: The present disclosure is directed to quantum dots comprising a core-shell structure and a novel arrangement of ligands thereon. Light emitting diodes including the quantum dots, light emitting devices including the same as well as methods associated with preparation and use of such compounds and devices are also provided.

公开(公告)号：US10135017B2

公开(公告)日：2018-11-20

申请号：US15837991

申请日：2017-12-11

Applicant: LG Display Co., Ltd.

Inventor： Byung-Geol Kim ,  Wy-Yong Kim ,  Kyu-Nam Kim

IPC: H01L29/66 ,  H01L31/00 ,  H01L51/50 ,  H01L51/52 ,  H01L27/32

Abstract: A quantum light emitting diode comprises a first electrode; a second electrode facing the first electrode; a light-amount enhancing layer between the first and second electrodes and having a structure guiding emitted light toward an emitting side; and an emitting material layer between the light-amount enhancing layer and the second electrode and including a quantum particle at the structure of the light-amount enhancing layer.

公开(公告)号：US20140319453A1

公开(公告)日：2014-10-30

申请号：US14104142

申请日：2013-12-12

Applicant: LG Display Co., Ltd.

Inventor： Kyung-Kook Jang ,  Jin-Wuk Kim ,  Byung-Geol Kim ,  Kyu-Nam Kim

IPC: H01L33/00 ,  H01L33/28 ,  H01L33/06

CPC classification number: C09K11/883 ,  C09K11/025 ,  H01L21/02601 ,  H01L29/0673 ,  H01L51/0059 ,  H01L2251/5369

Abstract: The present invention provides a quantum rod including a core including zinc compound; and a shell covering the core and including ZnS. The quantum rod emits the short wavelength light.

Abstract translation: 本发明提供一种包括含锌化合物的核的量子棒; 和覆盖核心并包括ZnS的壳体。 量子棒发出短波长的光。

公开(公告)号：US11903307B2

公开(公告)日：2024-02-13

申请号：US16193715

申请日：2018-11-16

Applicant: LG Display Co., Ltd.

Inventor： Young-Ju Ryu ,  Kyu-Nam Kim ,  Jae-Hyun Park

IPC: H10K85/60 ,  C07D495/04 ,  H10K50/115 ,  H10K50/15

CPC classification number: H10K85/636 ,  C07D495/04 ,  H10K85/633 ,  H10K50/115 ,  H10K50/156 ,  H10K85/626 ,  H10K85/6572 ,  H10K85/6576

Abstract: Compounds, and polymers thereof, useful dopants for light emitting diodes and light emitting display devices are disclosed. The compounds have the following structure Formula 1:




wherein R1, R2, R3, R4, L1, L2, L3, L4, a, b, c and d are as defined herein. Light emitting diodes including compounds of Formula 1 (and polymers thereof, i.e., compounds of Formula 3), light emitting devices including the same as well as methods associated with preparation and use of such compounds, polymers and devices are also provided.