公开(公告)号：US20190081268A1

公开(公告)日：2019-03-14

申请号：US16082995

申请日：2017-03-16

Applicant: Sharp Kabushiki Kaisha

Inventor： Asae ITO ,  Manabu NIBOSHI ,  Yuto TSUKAMOTO ,  Shinichi KAWATO

IPC: H01L51/50 ,  H01L51/52 ,  H01L27/32 ,  H01L51/00

CPC classification number: H01L51/5016 ,  H01L27/322 ,  H01L27/3246 ,  H01L51/001 ,  H01L51/5032 ,  H01L51/5044 ,  H01L51/5088 ,  H01L51/5206 ,  H01L51/5221 ,  H01L2251/5376

Abstract: Provided is an EL element utilizing upconversion light emission involving highly efficient triplet-triplet annihilation. A blue-light-emitting layer includes an ionic liquid, a red phosphorescent material, and a blue fluorescent material. The blue fluorescent material and the red phosphorescent material are homogeneously dispersed in a liquid film of the ionic liquid.

公开(公告)号：US20190067379A1

公开(公告)日：2019-02-28

申请号：US15758735

申请日：2016-08-10

Applicant: Sharp Kabushiki Kaisha

Inventor： Hideki UCHIDA ,  Katsuhiro KIKUCHI ,  Yoshiyuki ISOMURA ,  Masanori OHARA ,  Satoshi INOUE ,  Eiji KOIKE ,  Yuto TSUKAMOTO ,  Asae ITO

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/56

CPC classification number: H01L27/322 ,  G02B5/20 ,  H01L27/3211 ,  H01L51/5206 ,  H01L51/5221 ,  H01L51/5271 ,  H01L51/5284 ,  H01L51/56 ,  H01L2251/5361 ,  H01L2251/5369 ,  H01L2251/558

Abstract: An organic electroluminescence device includes a base material including a recessed portion on a surface side, a reflective layer disposed at least on a surface of the recessed portion, a filling layer having optical transparency, the filling layer being disposed in the recessed portion through the reflective layer, a first electrode having optical transparency, the first electrode being disposed at least on an upper-layer side of the filling layer, an organic layer including at least a light emitting layer, the organic layer being disposed on an upper-layer side of the first electrode, and a second electrode having optical transparency and light reflectivity, the second electrode being disposed on an upper-layer side of the organic layer. The filling layer includes at least one type of phosphor.

公开(公告)号：US20190012948A1

公开(公告)日：2019-01-10

申请号：US16066813

申请日：2016-12-22

Applicant: Sharp Kabushiki Kaisha

Inventor： Masanori OHARA ,  Hideki UCHIDA ,  Katsuhiro KIKUCHI ,  Yuto TSUKAMOTO ,  Eiji KOIKE ,  Kazuo TAKIZAWA ,  Noboru NOGUCHI ,  Noritaka KISHI ,  Asae ITO ,  Yoshiyuki ISOMURA

IPC: G09G3/20 ,  H01L27/32 ,  G09G3/3258 ,  G09G3/3233

Abstract: In each of pixel circuits in an organic EL display device configured to display color images in a field sequential method, a drive transistor is connected to first to third organic EL elements configured to emit red light, green light, and blue light through first to third light emission control transistors. A connection point between the drive transistor and the light emission control transistors is connected to a data line through a monitor control transistors. A data-side driving circuit is provided with a data voltage output unit circuit and a current measurement unit circuit for each of data lines. The data-side driving circuit is configured to be able to switch between the unit circuits to connect either one of the unit circuits to the data line.

公开(公告)号：US20160254330A1

公开(公告)日：2016-09-01

申请号：US15032381

申请日：2014-10-24

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Hideki UCHIDA ,  Yuto TSUKAMOTO ,  Katsuhiro KIKUCHI ,  Manabu NIBOSHI ,  Yoshiyuki ISOMURA ,  Ayataka ENDO ,  Asae ITO

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

CPC classification number: H01L27/3244 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/5004 ,  H01L51/5024 ,  H01L51/5056 ,  H01L51/5068 ,  H01L51/5072 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5234 ,  H01L51/5278 ,  H01L2251/301 ,  H01L2251/303 ,  H01L2251/308 ,  H01L2251/5315 ,  H01L2251/552

Abstract: The present invention provides an organic electroluminescent panel capable of increasing the luminous efficacy and decreasing the driving voltage of a top emission (TE) organic EL element. The organic electroluminescent panel of the present invention includes: a substrate; and an organic electroluminescent element provided on the substrate. The organic electroluminescent element is a top emission element that includes, in the order from the substrate side: an anode; a light-emitting layer; an electron transport layer; a first metal layer; a p-type oxide layer; and a transparent cathode. The top emission element is configured to emit light from the transparent cathode side. The light-emitting layer and the electron transport layer are each formed from an organic material. At least one of a mixture layer of a p-type oxide and a hole transport material and a second metal layer is provided between the electron transport layer and the transparent cathode.

Abstract translation: 本发明提供能够提高发光效率并降低顶部发射（TE）有机EL元件的驱动电压的有机电致发光面板。 本发明的有机电致发光面板包括：基板; 以及设置在基板上的有机电致发光元件。 有机电致发光元件是顶部发光元件，其从基板侧依次包括阳极; 发光层; 电子传输层; 第一金属层; p型氧化物层; 和透明阴极。 顶部发射元件被配置为从透明阴极侧发射光。 发光层和电子传输层均由有机材料形成。 在电子传输层和透明阴极之间提供p型氧化物和空穴传输材料的混合层和第二金属层中的至少一种。

公开(公告)号：US20190326540A1

公开(公告)日：2019-10-24

申请号：US16459648

申请日：2019-07-02

Applicant: Sharp Kabushiki Kaisha

Inventor： Yuto TSUKAMOTO ,  Katsuhiro KIKUCHI ,  Shinichi KAWATO ,  Manabu NIBOSHI ,  Eiji KOIKE ,  Asae ITO

IPC: H01L51/50 ,  H01L51/56

Abstract: An organic EL element (10) includes a first light-emitting layer (33a) having the shortest emission peak wavelength of a light-emitting layer (33) and containing a host material and a TTF material or at least the TTF material, a second light-emitting layer (33b) containing at least a TADF material, a third light-emitting layer (33c) having the longest emission peak wavelength of the light-emitting layer (33) and containing at least fluorescent material. The excited triplet level of the TTF material is lower than the excited triplet level of the TADF material.

公开(公告)号：US20170338434A1

公开(公告)日：2017-11-23

申请号：US15673447

申请日：2017-08-10

Applicant: Sharp Kabushiki Kaisha

Inventor： Yuto TSUKAMOTO ,  Katsuhiro KIKUCHI ,  Manabu NIBOSHI ,  Yoshiyuki ISOMURA ,  Hideki UCHIDA ,  Ayataka ENDO ,  Asae ITO

IPC: H01L51/50 ,  H01L51/00 ,  H01L27/32 ,  H01L51/52

CPC classification number: H01L51/5012 ,  H01L27/3244 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0072 ,  H01L51/0085 ,  H01L51/5004 ,  H01L51/5016 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5076 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5234 ,  H01L2251/301 ,  H01L2251/303 ,  H01L2251/308 ,  H01L2251/5315 ,  H01L2251/552 ,  H01L2251/558

Abstract: The organic electroluminescent element of the present invention includes, in the given order: an anode; a light-emitting layer; and a cathode, the light-emitting layer including a luminescent dopant layer and a luminescent host layer, the luminescent dopant layer containing a luminescent dopant material and substantially no luminescent host material, the luminescent host layer containing a luminescent host material and substantially no luminescent dopant material.

公开(公告)号：US20160218311A1

公开(公告)日：2016-07-28

申请号：US15025931

申请日：2014-10-08

Applicant: Sharp Kabushiki Kaisha

Inventor： Manabu NIBOSHI ,  Yoshiyuki ISOMURA ,  Yuto TSUKAMOTO ,  Katsuhiro KIKUCHI ,  Hideki UCHIDA ,  Ayataka ENDO ,  Asae ITO

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/52 ,  H01L29/786

CPC classification number: H01L51/5068 ,  H01L27/3209 ,  H01L27/3248 ,  H01L27/3262 ,  H01L29/7869 ,  H01L51/50 ,  H01L51/5084 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5278 ,  H01L2251/301 ,  H01L2251/303 ,  H01L2251/5307 ,  H01L2251/5315 ,  H01L2251/5353

Abstract: The organic EL display panel includes: an active matrix substrate including a thin-film transistor; and an organic EL element disposed on the active matrix substrate, the organic EL element including, in the order from the active matrix substrate side, a cathode electrically connected to the thin-film transistor, a first charge conversion layer in contact with the cathode, a first hole injection layer, a first hole transport layer, a first light-emitting layer, a first electron transport layer, a first electron injection layer, a second charge conversion layer, and an anode in contact with the second charge conversion layer, the first charge conversion layer designed to inject electrons into the cathode and emit holes to the first light-emitting layer side, the second charge conversion layer designed to inject holes into the anode and emit electrons to the first light-emitting layer side.

Abstract translation: 有机EL显示面板包括：包括薄膜晶体管的有源矩阵基板; 以及有机EL元件，其设置在所述有源矩阵基板上，所述有机EL元件从所述有源矩阵基板侧起依次包括与所述薄膜晶体管电连接的阴极，与所述阴极接触的第一电荷转换层， 第一空穴注入层，第一空穴传输层，第一发光层，第一电子传输层，第一电子注入层，第二电荷转换层和与第二电荷转换层接触的阳极， 第一电荷转换层，被设计成将电子注入阴极并向第一发光层侧发射孔，第二电荷转换层设计成将空穴注入阳极并向第一发光层侧发射电子。

公开(公告)号：US20180375050A1

公开(公告)日：2018-12-27

申请号：US15776798

申请日：2017-02-09

Applicant: Sharp Kabushiki Kaisha

Inventor： Asae ITO ,  Yuto TSUKAMOTO ,  Manabu NIBOSHI ,  Eiji KOIKE ,  Shinichi KAWATO ,  Katsuhiro KIKUCHI

IPC: H01L51/50 ,  H01L51/52

CPC classification number: H01L51/5028 ,  H01L51/5016 ,  H01L51/5036 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5206 ,  H01L51/5221 ,  H01L2251/5315 ,  H01L2251/533 ,  H01L2251/5376 ,  H01L2251/558

Abstract: An organic EL element is provided that has a high light emission efficiency and that emits a plurality of light beams having respective wavelength ranges different from one another, the light beams including short wavelength light having a high chromaticity. An organic EL element (1) includes an exciton generating layer (7) and a guest layer (8) that are adjacent to each other.

公开(公告)号：US20180287099A1

公开(公告)日：2018-10-04

申请号：US15758792

申请日：2016-08-10

Applicant: Sharp Kabushiki Kaisha

Inventor： Hideki UCHIDA ,  Katsuhiro KIKUCHI ,  Yoshiyuki ISOMURA ,  Masanori OHARA ,  Satoshi INOUE ,  Eiji KOIKE ,  Yuto TSUKAMOTO ,  Asae ITO

IPC: H01L51/52 ,  H01L27/32 ,  H01L29/786 ,  H01L51/56 ,  H01L51/00

Abstract: An organic electroluminescence device according to one aspect of the disclosure includes a base material including a recessed portion on an upper face, and a light emitting element including a reflective layer, a filling layer having optical transparency, a first electrode having optical transparency, an organic layer including at least a light emitting layer, and a second electrode having optical transparency. The reflective layer is disposed at least on a surface of the recessed portion. The filling layer is disposed at an inside of the recessed portion with the reflective layer interposed between the recessed portion and the filling layer. The first electrode is disposed at least on an upper-layer side of the filling layer. The organic layer is disposed on an upper layer of the first electrode. The second electrode is disposed on an upper-layer side of the organic layer. The organic electroluminescence device includes a display region that is divided into a plurality of unit regions. The plurality of unit regions each having the light emitting element has a light emitting area and a transmissive area that are partitioned.

公开(公告)号：US20160254475A1

公开(公告)日：2016-09-01

申请号：US15026663

申请日：2014-10-22

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Yuto TSUKAMOTO ,  Katsuhiro KIKUCHI ,  Manabu NIBOSHI ,  Yoshiyuki ISOMURA ,  Hideki UCHIDA ,  Ayataka ENDO ,  Asae ITO

IPC: H01L51/50

CPC classification number: H01L51/5012 ,  H01L27/3244 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0072 ,  H01L51/0085 ,  H01L51/5004 ,  H01L51/5016 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5076 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5234 ,  H01L2251/301 ,  H01L2251/303 ,  H01L2251/308 ,  H01L2251/5315 ,  H01L2251/552 ,  H01L2251/558

Abstract: The organic electroluminescent element of the present invention includes, in the given order: an anode; a light-emitting layer; and a cathode, the light-emitting layer including a luminescent dopant layer and a luminescent host layer, the luminescent dopant layer containing a luminescent dopant material and substantially no luminescent host material, the luminescent host layer containing a luminescent host material and substantially no luminescent dopant material.

Abstract translation: 本发明的有机电致发光元件按照给定的顺序包括：阳极; 发光层; 所述发光层包含发光掺杂剂层和发光主体层，所述发光掺杂剂层含有发光掺杂剂材料，基本上不含发光主体材料，所述发光主体层含有发光主体材料，基本上不含发光掺杂剂 材料。