公开(公告)号：US20240244967A1

公开(公告)日：2024-07-18

申请号：US18504980

申请日：2023-11-08

Applicant: LG Display Co., Ltd. ,  Korea University Research and Business Foundation

Inventor： Joon-Beom Im ,  Gyeong-Woo Kim ,  Ji-Seon Jang ,  Han-Jin Ahn ,  Jun-Yun Kim ,  Dong-Hoon Choi ,  Min-Ju Cho ,  Min-Ji Kang

IPC: H10K85/60 ,  C09K11/06 ,  H10K85/30 ,  H10K85/40

CPC classification number: H10K85/6572 ,  C09K11/06 ,  H10K85/346 ,  H10K85/40 ,  H10K85/615 ,  H10K85/657 ,  H10K85/6574 ,  H10K85/6576 ,  H10K50/11

Abstract: An organic light emitting diode includes a first electrode; a second electrode facing the first electrode; and a first emitting part including a first emitting material layer and positioned between the first and second electrodes, wherein the first emitting material layer includes a first p-type host and a first n-type host, and wherein the first p-type host is represented by Formula 1, and the first n-type host is represented by Formula 3.

公开(公告)号：US11828943B2

公开(公告)日：2023-11-28

申请号：US17127390

申请日：2020-12-18

Applicant: LG Display Co., Ltd.

Inventor： Seung-Ryong Joung ,  Sang-Hun Han ,  Ahn-Ki Kim ,  Hong-Seok Choi ,  Yoon-Deok Han ,  Gyeong-Woo Kim ,  Jun-Ho Lee ,  Hee-Su Byeon

IPC: G02B27/01 ,  H10K50/81 ,  H10K50/82 ,  H10K50/844 ,  H10K50/852 ,  H10K59/12 ,  H10K59/38 ,  H10K77/10

CPC classification number: G02B27/0172 ,  H10K50/81 ,  H10K50/82 ,  H10K50/844 ,  H10K50/852 ,  H10K59/12 ,  H10K59/38 ,  H10K77/10 ,  G02B2027/0132 ,  G02B2027/0178

Abstract: Disclosed are a display panel which changes the inner structure of an organic light emitting stack and a color transmission structure so as to improve luminance, and a head mounted display device using the same.

公开(公告)号：US11730006B2

公开(公告)日：2023-08-15

申请号：US17096616

申请日：2020-11-12

Applicant: LG Display Co., Ltd.

Inventor： Gyeong-Woo Kim ,  Hong-Seok Choi ,  Seung-Ryong Joung ,  Yoon-Deok Han ,  Jun-Ho Lee ,  Ji-Seon Jang

IPC: H10K50/11 ,  C09K11/06 ,  H10K50/12 ,  H10K50/13 ,  H10K101/10 ,  H10K101/00 ,  H10K102/00

CPC classification number: H10K50/11 ,  C09K11/06 ,  H10K50/12 ,  H10K50/13 ,  H10K2101/10 ,  H10K2101/90 ,  H10K2102/361

Abstract: Disclosed are an organic light emitting device and a display device using the same in which a light emitting layer includes a host and a plurality of dopants. In the light emitting layer, energy is transferred from a host and other dopants to one dopant by energy transfer system, thus it is possible to increase luminous efficacy of a single color and to increase lifetime of emission.

公开(公告)号：US11956980B2

公开(公告)日：2024-04-09

申请号：US17133874

申请日：2020-12-24

Applicant: LG Display Co., Ltd.

Inventor： Gyeong-Woo Kim ,  Hong-Seok Choi ,  Seung-Ryong Joung ,  Jun-Ho Lee ,  Yoon-Deok Han ,  Hee-Su Byeon

IPC: H10K50/12 ,  H10K50/11 ,  H10K59/121 ,  H10K59/38 ,  H10K101/10

CPC classification number: H10K50/121 ,  H10K50/11 ,  H10K59/1213 ,  H10K59/38 ,  H10K2101/10

Abstract: Discussed is an organic light emitting device in which a light emitting layer includes a host and different kinds of dopants, the fluorescent dopant is formed of a material having energy level properties facilitating thermally activated delayed fluorescence (TADF), and thus energy is concentratedly transferred to the fluorescent dopant so as to increase luminous efficacy of a single color.

公开(公告)号：US11730013B2

公开(公告)日：2023-08-15

申请号：US16999925

申请日：2020-08-21

Applicant: LG Display Co., Ltd.

Inventor： Seung-Ryong Joung ,  Hong-Seok Choi ,  Yoon-Deok Han ,  Gyeong-Woo Kim ,  Jun-Ho Lee ,  Ji-Seon Jang

IPC: G06F1/16 ,  G02B5/00 ,  H10K50/852 ,  G02B27/01 ,  H10K50/13 ,  H10K59/30 ,  H10K59/38 ,  H10K59/123

CPC classification number: H10K50/852 ,  G02B27/0172 ,  H10K50/131 ,  H10K59/123 ,  H10K59/30 ,  H10K59/38 ,  G02B2027/0112 ,  G02B2027/0178 ,  G06F1/163

Abstract: Disclosed is a display panel configured such that, in a structure in which the distance between a display surface and a viewer is short, the structure between a reflective plate and a first electrode (an anode) is changed such that light having three or more color peak properties for all subpixels is transmitted through a second electrode (a cathode), whereby white expression as well as color expression is possible, and a head mounted display device including the same.

公开(公告)号：US11233093B2

公开(公告)日：2022-01-25

申请号：US16516549

申请日：2019-07-19

Applicant: LG Display Co., Ltd.

Inventor： Hong-Seok Choi ,  Yoon-Deok Han ,  Gyeong-Woo Kim ,  Jun-Ho Lee

IPC: H01L27/32 ,  G02B27/01 ,  H01L51/52

Abstract: A head mounted display device comprises a display panel comprising first to third subpixels defined at a substrate, a reflection plate provided in the first, second and third subpixels, first electrodes vertically spaced apart from a lower surface of the reflection plate by a first distance, a second distance and a third distance at the first, second and third subpixels, respectively, a white organic stack on the first electrodes at the first, second and third subpixels, a second electrode on the white organic stack, and a first color filter on the second electrode at the third subpixel to transmit light having a long wavelength.