-
公开(公告)号：US12016190B2
公开(公告)日：2024-06-18
申请号：US17318460
申请日：2021-05-12
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Moon Gyu Han , Dae Young Chung , Kwanghee Kim , Eun Joo Jang , Chan Su Kim , Kun Su Park , Won Sik Yoon
IPC: H10K50/115 , H10K50/15 , H10K50/16 , H10K71/00 , H10K85/60 , H10K101/00 , H10K102/00
CPC classification number: H10K50/115 , H10K50/15 , H10K50/157 , H10K50/167 , H10K71/00 , H10K85/631 , H10K85/633 , H10K50/16 , H10K2101/00 , H10K2102/331
Abstract: An electroluminescent device includes a first electrode and a second electrode facing each other; an emission layer disposed between the first electrode and the second electrode and including a plurality of quantum dots and a first hole transporting material having a substituted or unsubstituted C4 to C20 alkyl group attached to a backbone structure; a hole transport layer disposed between the emission layer and the first electrode and including a second hole transporting material; and an electron transport layer disposed between the emission layer and the second electrode.
-
公开(公告)号：US20240188381A1
公开(公告)日：2024-06-06
申请号：US18362054
申请日：2023-07-31
Inventor： Libin ZHOU , Shijian QIN , Xialiang YUAN
IPC: H10K59/80 , H10K50/16 , H10K59/122
CPC classification number: H10K59/80522 , H10K50/166 , H10K50/167 , H10K59/122
Abstract: The present application provides a display panel including: a substrate, a thin film transistor layer, an insulation layer, an anode layer, an electron transport layer, and a cathode layer. The thin film transistor layer includes an auxiliary transistor. A first cathode auxiliary hole is defined in the insulation layer. The anode layer includes a connection portion disposed in the first cathode auxiliary hole and electrically connected to the auxiliary transistor. The electron transport layer includes an electron transport portion disposed to correspond to the connection portion. The cathode layer includes a cathode auxiliary electrode connected to the electron transport portion. The present application can prevent an issue of uneven brightness due to voltage decrease and improves quality of the display panel.
-
公开(公告)号：US20240065023A1
公开(公告)日：2024-02-22
申请号：US18500183
申请日：2023-11-02
Applicant: Japan Display Inc.
Inventor： Heisuke KANAYA
IPC: H10K50/842 , H01L29/786 , H01L29/423 , H01L27/12 , H10K50/13 , H10K50/15 , H10K50/84 , H10K50/16 , H10K50/828 , H10K50/844 , H10K59/121 , H10K59/124 , H10K77/10
CPC classification number: H10K50/8426 , H01L29/78666 , H01L29/42384 , H01L29/78669 , H01L27/1248 , H10K50/13 , H10K50/15 , H10K50/84 , H10K50/167 , H10K50/828 , H10K50/844 , H10K59/121 , H10K59/124 , H10K59/1213 , H10K77/111 , Y02E10/549 , H10K2102/311
Abstract: A display device includes a substrate, a plurality of pixels above the substrate, each of the pixels including a light emitting element, a display region including the plurality of pixels, a thin film transistor which each of the plurality of pixels includes, a protective film including a first inorganic insulating material and located between the thin film transistor and the light emitting element, a sealing film including a second inorganic insulating material and covering the light emitting element, and at least one through hole located in the display region and passing through the substrate, the protective film, and the sealing film, wherein the second inorganic insulating material is in direct contact with the protective film in a first region located between the through hole and the pixels.
-
公开(公告)号：US20240327441A1
公开(公告)日：2024-10-03
申请号：US18613506
申请日：2024-03-22
Applicant: Samsung Electronics Co., Ltd.
Inventor： Ohyun Kwon , Bumwoo Park , Virendra Kumar RAI , Minhan Lee , Yasushi KOISHIKAWA
CPC classification number: C07F15/0033 , H10K50/11 , H10K50/157 , H10K50/167 , H10K85/342 , H10K85/6572
Abstract: An organometallic compound represented by Formula 1:
M1(L1)n1(L2)n2 Formula 1
wherein, M1 is a transition metal, L1 is a ligand represented by Formula 1A, L2 is a ligand represented by Formula 1B, and n1 and n2 are each independently 1 or 2,
wherein i) X45 is C(R45) and X46 is C(R46), wherein R45 and R46 are bonded together to form a group represented by Formula 2, ii) X46 is C(R46) and X47 is C(R47), wherein R46 and R47 are bonded together to form a group represented by Formula 2, or iii) X47 is C(R47) and X48 is C(R48), wherein R47 and R48 are bonded together to form a group represented by Formula 2; ring CY4 and ring CY5 are condensed with each other, and the remaining descriptions of Formulae 1A, 1B, and 2 are as provided herein.
-
公开(公告)号：US11997911B2
公开(公告)日：2024-05-28
申请号：US17419694
申请日：2019-09-17
Applicant: TCL TECHNOLOGY GROUP CORPORATION
Inventor： Jie Zhang , Chaoyu Xiang
IPC: H10K71/00 , C01G9/08 , C01G11/00 , C09K11/56 , C09K11/88 , H10K50/115 , B82Y20/00 , B82Y40/00 , H10K50/15 , H10K50/16
CPC classification number: H10K71/00 , C01G9/08 , C01G11/00 , C09K11/565 , C09K11/883 , H10K50/115 , B82Y20/00 , B82Y40/00 , C01P2004/64 , C01P2006/60 , H10K50/157 , H10K50/167
Abstract: The present application discloses a method for preparing quantum dots light-emitting diode, including the following step: providing a base plate, placing the base plate into an inert atmosphere containing active gas, and printing quantum dots ink on a surface of the base plate to prepare a quantum dots light-emitting layer. The method for preparing the quantum dots light-emitting diode provided in the present application changes the film-forming atmosphere of inkjet printing, and prepares the quantum dots light-emitting layer in the inert atmosphere containing active gas, which can improve the device efficiency of the quantum dots light-emitting diode while ensuring the printability of quantum dots ink.
-
公开(公告)号：US11818907B2
公开(公告)日：2023-11-14
申请号：US17511882
申请日：2021-10-27
Inventor： Jin Jang , Eun Sa Hwang , Hyo Min Kim
IPC: H01L51/50 , H01L51/00 , H01L51/56 , H10K50/115 , H10K50/15 , H10K50/17 , H10K50/19 , H10K50/13 , H10K50/16 , H10K71/00 , H10K71/12 , H10K85/10 , H10K85/60 , H10K102/00
CPC classification number: H10K50/115 , H10K50/131 , H10K50/15 , H10K50/157 , H10K50/167 , H10K50/17 , H10K50/171 , H10K50/19 , H10K71/00 , H10K71/12 , H10K85/111 , H10K85/1135 , H10K85/151 , H10K85/626 , H10K85/633 , H10K85/636 , H10K85/6572 , H10K2102/00
Abstract: Disclosed are a structure of a quantum-dot light emitting device including a charge generation junction layer and a method of fabricating the quantum-dot light emitting device. A quantum-dot light emitting device according to an embodiment of the present invention includes a negative electrode, a first charge generation junction layer including a p-type semiconductor layer and an n-type semiconductor layer, a quantum-dot light emitting layer, a hole transport layer, a second charge generation junction layer including a p-type semiconductor layer and an n-type semiconductor layer, and a positive electrode. The first and second charge generation junction layers is formed using a solution process. Accordingly, charge generation and injection can be stabilized, a process time can be shorted, and problems in the work function a positive or a negative electrode of a quantum-dot light emitting device can be addressed.
-
公开(公告)号：US20230276652A1
公开(公告)日：2023-08-31
申请号：US18144474
申请日：2023-05-08
Applicant: SEIKO EPSON CORPORATION
Inventor： Koya SHIRATORI , Yuki HANAMURA , Tsutomu ASAKAWA
IPC: H10K50/824 , H01L33/36 , H01L33/40 , H01L33/42 , H10K30/80 , H10K50/00 , H10K50/17 , H10K50/81 , H10K50/82 , H10K50/15 , H10K50/16 , H10K50/805 , H10K50/814 , H10K50/826 , H10K50/828 , H10K50/844 , H10K50/84 , H10K50/852 , H10K59/00 , H10K59/35 , H10K59/38
CPC classification number: H10K50/824 , H01L33/36 , H01L33/40 , H01L33/42 , H10K30/865 , H10K50/00 , H10K50/17 , H10K50/81 , H10K50/82 , H10K50/156 , H10K50/166 , H10K50/167 , H10K50/171 , H10K50/805 , H10K50/814 , H10K50/826 , H10K50/828 , H10K50/844 , H10K50/846 , H10K50/852 , H10K59/00 , H10K59/35 , H10K59/38 , H10K2102/351
Abstract: An organic EL element includes a pixel electrode, a light emitting function layer that is formed on the pixel electrode, an electron injection layer formed on the light emitting function layer, and a counter electrode that is formed on the electron injection layer and that has semi-transmissive reflectivity, in which the counter electrode contains a reductive material that reduces material of the electron injection layer and Ag with atomic ratio of 75% or more, and an adsorption layer is formed on the counter electrode.
-
公开(公告)号：US11700735B2
公开(公告)日：2023-07-11
申请号：US17200547
申请日：2021-03-12
Applicant: LG DISPLAY CO., LTD.
Inventor： EunJung Park
IPC: H01L51/50 , H01L51/52 , H01L27/32 , H10K50/11 , H10K50/15 , H10K50/16 , H10K50/19 , H10K50/13 , H10K59/32 , H10K101/40 , H10K85/30 , H10K85/60 , H10K101/30
CPC classification number: H10K50/11 , H10K50/131 , H10K50/15 , H10K50/16 , H10K50/167 , H10K50/19 , H10K59/32 , H10K85/30 , H10K85/324 , H10K85/615 , H10K85/654 , H10K85/6572 , H10K2101/30 , H10K2101/40
Abstract: An organic light emitting display device is discussed, which includes an anode on a substrate, a first hole transfer layer on the anode, a first emission layer on the first hole transfer layer, a first electron transfer layer on the first emission layer, an N-type charge generation layer on the first electron transfer layer, a second hole transfer layer on the N-type charge generation layer, a first emission control layer on the second hole transfer layer, an absolute value of a highest occupied molecular orbital (HOMO) energy level of the first emission control layer being greater than an absolute value of a HOMO energy level of the second hole transfer layer, a second emission layer on the first emission control layer, a second electron transfer layer on the second emission layer and a cathode on the second electron transfer layer.
-
公开(公告)号：US12016241B2
公开(公告)日：2024-06-18
申请号：US17171008
申请日：2021-02-09
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Won Sik Yoon , Moon Gyu Han , Kwanghee Kim , Heejae Lee , Eun Joo Jang , Tae Hyung Kim , Hyo Sook Jang
IPC: H10K85/00 , B82Y20/00 , B82Y30/00 , B82Y40/00 , H10K50/11 , H10K50/115 , H10K50/16 , H10K50/17 , H10K71/00 , H10K101/40 , H10K102/00
CPC classification number: H10K85/00 , B82Y20/00 , B82Y30/00 , B82Y40/00 , H10K50/11 , H10K50/115 , H10K50/167 , H10K50/171 , H10K71/00 , H10K2101/40 , H10K2102/331
Abstract: A quantum dot device including a first electrode and a second electrode each having a surface opposite the other, a quantum dot layer disposed between the first electrode and the second electrode, an electron transport layer disposed between the quantum dot layer and the second electrode and including first inorganic nanoparticles and a first organic material, and an electron injection layer disposed between the electron transport layer and the second electrode and including second inorganic nanoparticles and a second organic material, wherein a ratio by weight of an amount of the second organic material to a total amount of the second inorganic nanoparticles and the second organic material in the electron injection layer is less than a ratio by weight of an amount of the first organic material to a total amount of the first inorganic nanoparticles and the first organic material in the electron transport layer. An electronic device including the quantum dot device.
-
10.发明授权
公开(公告)号：US11912912B2
公开(公告)日：2024-02-27
申请号：US17354162
申请日：2021-06-22
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Tieshi Wang
CPC classification number: C09K11/02 , C09K11/025 , C09K11/54 , H10K50/115 , H10K50/167 , B82Y20/00 , H10K50/15 , H10K50/16 , H10K50/17 , H10K85/6572
Abstract: The present disclosure provides a quantum dot material comprising a quantum dot body and a hole transport ligand bonded to the quantum dot body through a coordinate bond. The hole transport ligand comprises a carbazolyl group, at least one coordinating group and at least one crosslinking group having an unsaturated bond. Both of the coordinating group and the crosslinking group are terminal groups of the hole transport ligand, and the coordinating group provides the coordinate bond. The present disclosure also provides a method for manufacturing the quantum dot material, a light emitting diode and a display panel.
