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：US20200168827A1

公开(公告)日：2020-05-28

申请号：US16691224

申请日：2019-11-21

Applicant: LG Display Co., Ltd.

Inventor： Sung-Il Woo ,  Byung-Geol Kim

IPC: H01L51/50 ,  H01L27/32

Abstract: A quantum-dot light emitting diode includes a first electrode; a second electrode facing the first electrode; a QD emitting material layer between the first and second electrodes and including a QD; a hole transporting layer between the first electrode and the QD emitting material layer and including a first hole transporting material; a first electron transporting layer between the QD emitting material layer and the second electrode; and a first electron control layer between the QD emitting material layer and the first electron transporting layer and including a second hole transporting material.

公开(公告)号：US10174249B2

公开(公告)日：2019-01-08

申请号：US14935294

申请日：2015-11-06

Applicant: LG Display Co., Ltd.

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

IPC: C09K11/88 ,  C09K11/56 ,  C09K11/89 ,  G02F2/02 ,  B05D3/14 ,  C09K11/02 ,  C09K11/54 ,  G02F1/01 ,  G02F1/17 ,  G02F1/03 ,  C09K19/24 ,  C09K19/38 ,  C09K19/12 ,  C09K19/20

Abstract: Embodiments relate to a quantum rod composition, a quantum rod film, a display device with a quantum rod film, and a method of forming a quantum rod film. The quantum rod film includes a plurality of quantum rods and a polymer with a dipole side chain. Responsive to an external electric field, the major axis of the quantum rods and an axis of the dipole side chain arranges in the same direction. The display device includes a plurality of pixel and common electrodes for generating an electric field, and a backlight unit positioned under a first substrate. Responsive to receiving light from the backlight unit, the quantum rod film emits light polarized in a direction parallel to the major axis of the quantum rods.

公开(公告)号：US10516127B2

公开(公告)日：2019-12-24

申请号：US15724374

申请日：2017-10-04

Applicant: LG DISPLAY CO., LTD.

Inventor： Sung-Il Woo ,  Byung-Geol Kim ,  Kyu-Nam Kim ,  Kyung-Kook Jang ,  Tae-Yang Lee

IPC: H01L51/50 ,  H01L33/06 ,  G02F1/17 ,  G02F2/02 ,  G02F1/1335 ,  H01L27/15 ,  H01L33/50

Abstract: A quantum rod panel includes a first substrate and a second substrate facing each other, a pixel electrode and a common electrode over the first substrate and spaced apart from each other, and a quantum rod layer between the pixel electrode and the common electrode and including quantum rods and metal particles.

公开(公告)号：US10364391B2

公开(公告)日：2019-07-30

申请号：US15249322

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

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：US11849594B2

公开(公告)日：2023-12-19

申请号：US16129114

申请日：2018-09-12

Applicant: LG Display Co., Ltd.

Inventor： Min-Jee Kim ,  Sung-Il Woo ,  Hye-Ock Choi ,  Ji-Yeon Kang

IPC: H10K50/115 ,  C08L29/04 ,  C08K3/22 ,  C08K3/36 ,  C09D129/04 ,  H10K50/16 ,  H10K50/81 ,  H10K50/82 ,  H10K50/17 ,  H10K59/121 ,  H10K50/15 ,  H10K50/165 ,  H10K102/00

CPC classification number: H10K50/115 ,  C08K3/22 ,  C08K3/36 ,  C08L29/04 ,  C09D129/04 ,  H10K50/16 ,  H10K50/171 ,  H10K50/81 ,  H10K50/82 ,  H10K59/1213 ,  C08K2003/2217 ,  C08K2003/2231 ,  C08K2003/2296 ,  C08L2207/53 ,  H10K50/15 ,  H10K50/165 ,  H10K2102/331 ,  H10K2102/351

Abstract: A quantum dot emitting diode includes first and second electrodes facing each other; a quantum dot emitting material layer between the first and second electrodes; and an electron transporting layer including an electron transporting material and disposed between the quantum dot emitting material layer and the second electrode, wherein the electron transporting material includes a core of metal oxide and a shell of silica.

公开(公告)号：US11127913B2

公开(公告)日：2021-09-21

申请号：US16691224

申请日：2019-11-21

Applicant: LG Display Co., Ltd.

Inventor： Sung-Il Woo ,  Byung-Geol Kim

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/00

Abstract: A quantum-dot light emitting diode includes a first electrode; a second electrode facing the first electrode; a QD emitting material layer between the first and second electrodes and including a QD; a hole transporting layer between the first electrode and the QD emitting material layer and including a first hole transporting material; a first electron transporting layer between the QD emitting material layer and the second electrode; and a first electron control layer between the QD emitting material layer and the first electron transporting layer and including a second hole transporting material.

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：US11228013B2

公开(公告)日：2022-01-18

申请号：US16165691

申请日：2018-10-19

Applicant: LG Display Co., Ltd.

Inventor： Sung-Il Woo ,  Dong-Young Kim ,  Hye-Ock Choi

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/00 ,  H01L51/56

Abstract: The present disclosure relates to a light-emitting diode including a first electrode and a second electrode facing each other; an electron transfer layer between the first electrode and the second electrode; and a light emitting material between the first electrode and the second electrode, wherein the electron transfer layer consists of anisotropic nanorods, and the long axes of the anisotropic nanorods are arranged at an angle of about 20 degrees to about 90 degrees with respect to an interface with an adjacent layer into which electrons are injected.