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公开(公告)号：US11056662B2
公开(公告)日：2021-07-06
申请号：US15791347
申请日：2017-10-23
发明人： Angran Zhang , Hamada Yuji , Jinghua Niu , Xiangcheng Wang , Shuang Cheng , Run Yang
摘要： The present application discloses an organic light-emitting device and a display device. The organic light-emitting device comprises an anode, a cathode, and a blue light emitting layer, a green light emitting layer and a red light emitting layer between the anode and the cathode, and the blue light emitting layer comprises a blue thermally-activated delayed fluorescent material with a mass percent of 60-80%, the green light emitting layer comprises a green phosphorescent material and/or a green thermally-activated delayed fluorescent material, and the red light emitting layer comprises a red phosphorescent material and/or a red thermally-activated delayed fluorescent material.
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公开(公告)号：US20200373501A1
公开(公告)日：2020-11-26
申请号：US16669365
申请日：2019-10-30
发明人： Lei Zhang , Wei Gao , Jinghua Niu , Wenpeng Dai , Yan Lu
IPC分类号： H01L51/00 , C07D471/04 , C09K11/06 , C07D401/14
摘要： The present disclosure belongs to the technical field of organic light-emitting diods (OLEDs), and provides a compound used as an electron transmission material of OLEDs. Molecules of the compounds include an aromatic ring (or aromatic fused ring) and a phenanthroline group that are connected to each other. In an embodiment, the compound according to the present disclosure includes two types of groups, i.e., an aromatic ring (or aromatic fused ring) and a phenanthroline (or benzoquinoline) group. These two groups not only have good electron accepting ability, but also can be well doped with metals. The planarity of the two groups is conducive to the stacking of molecules, which facilitates the combination of holes and electrons and generates excitons, thereby increasing the electron mobility of the material and improving efficiency of device.
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公开(公告)号：US10692419B2
公开(公告)日：2020-06-23
申请号：US16410569
申请日：2019-05-13
发明人： Jun Lin , Shuang Cheng , Lei Wen , Honghu Ma , Jinghua Niu , Ping An
IPC分类号： G09G3/20 , G02B5/30 , H04N13/344 , G02B27/01
摘要： Provided are a display panel, a display device and a display method of the display panel. The display panel includes a pixel array, where the pixel array includes a plurality of pixel groups and each of the plurality of pixels group includes first-type pixel units and second-type pixel units; and a drive circuit configured to provide a drive signal for the pixel array. A display mode of the display panel includes a high-definition display mode in which within one-frame time, the first-type pixel units and the second-type pixel units collectively display a same to-be-displayed picture; a stereoscopic display mode in which the first-type pixel units display a user's left-eye picture within first time and the second-type pixel units display a user's right-eye picture within second time; and a power saving display mode in which the first-type pixel units display a picture and the second-type pixel units do not perform displaying.
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公开(公告)号：US10658601B2
公开(公告)日：2020-05-19
申请号：US16220077
申请日：2018-12-14
发明人： Shuang Cheng , Jinghua Niu , Xiangcheng Wang , Qing Zhu , Weili Qiao , Yinhe Liu , Xiaoqian Sun
摘要： An organic light-emitting display panel, comprising: an array substrate comprising driving units; an organic light-emitting unit including an anode, a cathode, and an organic functional layer there between, the organic functional layer comprises an organic light-emitting layer, a first electron transmission layer between the cathode and the organic light-emitting layer, and a first hole transmission layer between the anode and the organic light-emitting layer; the first electron transmission layer comprises a first electron transmission matrix and a first dopant comprising an alkaline earth metal element or a rare earth metal element; and the organic light-emitting layer comprises a blue light-emitting layer comprising a blue host material, wherein an electron mobility and a hole mobility of the blue host material satisfy the following conditions: the electron mobility of the blue host material>(the hole mobility of the blue host material)×102 under an electric field of 0.2 MV/cm.
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公开(公告)号：US20200135086A1
公开(公告)日：2020-04-30
申请号：US16410569
申请日：2019-05-13
发明人： Jun Lin , Shuang Cheng , Lei Wen , Honghu Ma , Jinghua Niu , Ping An
IPC分类号： G09G3/20 , G02B5/30 , G02B27/01 , H04N13/344
摘要： Provided are a display panel, a display device and a display method of the display panel. The display panel includes a pixel array, where the pixel array includes a plurality of pixel groups and each of the plurality of pixels group includes first-type pixel units and second-type pixel units; and a drive circuit configured to provide a drive signal for the pixel array. A display mode of the display panel includes a high-definition display mode in which within one-frame time, the first-type pixel units and the second-type pixel units collectively display a same to-be-displayed picture; a stereoscopic display mode in which the first-type pixel units display a user's left-eye picture within first time and the second-type pixel units display a user's right-eye picture within second time; and a power saving display mode in which the first-type pixel units display a picture and the second-type pixel units do not perform displaying.
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公开(公告)号：US10600851B2
公开(公告)日：2020-03-24
申请号：US16059248
申请日：2018-08-09
发明人： Xiangcheng Wang , Jinghua Niu , Ding Li , Ping An
摘要： An organic light-emitting display panel includes an array substrate including a plurality of driving elements; a plurality of organic light-emitting components corresponding to the plurality of driving elements; and a plurality of fingerprint identification units, where each organic light-emitting component includes an anode and a cathode, and light emitted by the organic light-emitting component emits away from the array substrate, a pixel defining layer is disposed between adjacent organic lighting emitting components, a fingerprint identification unit is disposed at a non-display area between organic light-emitting components and on a side of the pixel defining layer away from the array substrate, and a periphery of the fingerprint identification unit is provided with a light-shielding layer, and the light-shielding layer blocks the fingerprint identification unit from illumination by the light emitted by the organic light-emitting component.
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公开(公告)号：US10566577B2
公开(公告)日：2020-02-18
申请号：US15616944
申请日：2017-06-08
发明人： Yinhe Liu , Wei He , Xiangcheng Wang , Yuji Hamada , Jinghua Niu , Qing Zhu
摘要： An organic light emitting display device and an organic light emitting display apparatus are provided. The organic light emitting display device includes a first electrode and a second electrode disposed opposite to each other, a light emitting layer positioned between the first electrode and the second electrode, and a capping layer positioned on a surface of a side of the second electrode far away from the light emitting layer, the capping layer is formed as a single layer or superposition of a plurality of layers, the at least one layer of the capping layer is a composite layer, and the composite material of the composite layer comprises an organic material and a metal dopant.
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公开(公告)号：US20200035931A1
公开(公告)日：2020-01-30
申请号：US16222935
申请日：2018-12-17
发明人： Wei Gao , Xiangcheng Wang , Lei Zhang , Jinghua Niu , Yan Lu , Changxuan Fan , Gaojun Huang , Ping An
IPC分类号： H01L51/00 , C07D495/04 , C09K11/06 , C07F5/02
摘要： The present disclosure provides an aromatic heterocyclic compound having property of thermally activated delayed fluorescence (TADF). The aromatic heterocyclic compound has a structure represented by Formula (I), in which X1 and X2 each is S, O, Se, or C; D is an electron donor, A is an electron acceptor; m is a number of the electron donor D, and the m electron donors D are the same or different; n is a number of the electron acceptor, and the n electron acceptors are the same or different; and m and n are 1 or 2. The aromatic heterocyclic compound provides a high luminescence efficiency. Organic light-emitting display devices including such aromatic heterocyclic compound have improved luminescence efficiency, lower cost and longer service life by using the aromatic heterocyclic compound as a light-emitting material, a host material, or a guest material.
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9.发明授权公开(公告)号：US10529781B2
公开(公告)日：2020-01-07
申请号：US15596010
申请日：2017-05-16
发明人： Xiangcheng Wang , Jinghua Niu , Wei He , Yuji Hamada , Chen Liu , Honggang Yan
IPC分类号： H01L27/32 , G09G3/34 , H01L51/00 , H01L51/50 , H01L51/52 , G09G3/3233 , G09G3/3258 , G09G3/20
摘要： An organic light-emitting diode (OLED) display panel and an OLED display device are provided. The (OLED) display panel includes a first substrate; a first electrode layer disposed on the first substrate and including a plurality of first electrodes; a plurality of light-emitting devices disposed on a surface of the first electrode layer far away from the first substrate and having m number of colors, where m is a positive integer; and a second electrode layer disposed on a surface of the plurality of light-emitting devices far away from the first electrode layer. One light-emitting device corresponds to one color, and given a predetermined value of brightness, the light-emitting devices of two different colors are configured to have a predetermined absolute value of a threshold voltage difference.
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公开(公告)号：US10516125B1
公开(公告)日：2019-12-24
申请号：US16155144
申请日：2018-10-09
发明人： Xiaoxi Na , Jinghua Niu , Xiangcheng Wang , Qing Zhu , Shuang Cheng , Lei Wen , Jun Lin
摘要： Provided are an organic light-emitting display panel and a display device. The organic light-emitting display includes an array substrate and organic light-emitting components each having anode, cathode and organic functional layer. The organic functional layer includes an organic light-emitting layer, a first and second electron transmission layer and an electron injection layer. The first electron transmission layer and electron injection layer include a first dopant containing an alkaline earth metal element or a rare earth metal element. A work function φ1 of the electron injection layer and a work function φ2 of the cathode satisfy: φ1
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