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公开(公告)号：US20250151606A1
公开(公告)日：2025-05-08
申请号：US18693943
申请日：2023-02-24
Applicant: BOE Technology Group Co., Ltd.
Abstract: The present disclosure provides a display device and a light emitting component. The light emitting component includes: an anode and a cathode arranged oppositely; a light emitting layer between the anode and the cathode, where the light emitting layer includes a host material and a dopant material, the host material includes hole type material and electron type material, the electron transport rate exceeds the hole transport rate in the light emitting layer; and an electron barrier layer on a surface of the light emitting layer facing the anode; where the hole type material, the electron type material, the dopant material, and the electron barrier layer or any combination thereof includes a deuterium-substituted compound.
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2.发明公开公开(公告)号：US20240237390A9
公开(公告)日：2024-07-11
申请号：US17768265
申请日：2021-05-21
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Congcong JIA , Lei CHEN , Kun MA
CPC classification number: H10K50/181 , C09K11/02 , C09K11/06 , H10K50/17 , H10K71/12 , H10K85/111 , H10K85/311 , H10K85/324 , H10K85/60 , H10K85/615 , H10K85/631 , H10K85/654 , H10K85/6572 , H10K2102/351
Abstract: The present disclosure provides an organic light-emitting diode, a method of manufacturing the same, and an organic light-emitting diode display apparatus. The organic light-emitting diode includes an anode; a hole injection layer; a hole transport layer; an electron blocking layer; an organic luminescent layer; a hole blocking layer; an electron transport layer; and a cathode, wherein a first composite layer is provided between the electron blocking layer and the organic luminescent layer, and the first composite layer includes a material of the electron blocking layer and a host material of the organic luminescent layer.
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公开(公告)号：US20230263052A1
公开(公告)日：2023-08-17
申请号：US17628553
申请日：2021-03-31
Applicant: BOE Technology Group Co., Ltd.
Inventor： Lei CHEN
CPC classification number: H10K85/654 , C09K11/06 , H10K85/615 , H10K85/636 , H10K50/18
Abstract: Provided are a display substrate and a display apparatus. The display substrate includes a drive circuit layer and a light emitting structure layer stacked on a substrate. The light emitting structure layer includes an anode, a cathode, and an emitting layer, a hole block layer, and an electron transport layer disposed between the anode and the cathode; the hole block layer and the electron transport layer satisfy: EETL/EHBL>1; where EETL is the electromigration rate of the electron transport layer, and EHBL is the electromigration rate of the hole block layer.
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公开(公告)号：US20220376198A1
公开(公告)日：2022-11-24
申请号：US17439406
申请日：2020-12-11
Applicant: BOE Technology Group Co., Ltd.
Abstract: Provided are an organic light emitting device and a display apparatus. An organic light emitting device includes an anode, a cathode, and an emitting layer disposed between the anode and the cathode; wherein the emitting layer includes a host material and a dopant material doped in the host material; the host material includes a first host material and a second host material, and the first host material, the second host material, the electron block layer, and the hole block layer satisfy: |HOMO1-host-HOMOEBL|≤0.2 eV,|LUMOHBL-LUMO2-host|≤0.2 eV, wherein, HOMO1-host is a HOMO energy level of the first host material; HOMOEBL is a HOMO energy level of the electron block layer; LUMO2-host is a LUMO energy level of the second host material, and LUMOHBL is a LUMO energy level of the hole block layer.
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公开(公告)号：US20220320450A1
公开(公告)日：2022-10-06
申请号：US17312186
申请日：2020-08-31
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Abstract: The present disclosure relates to an organic electroluminescent device, in which co-host materials with a specific P:N ratio are used, and the energy level and mobility of the materials of the functional layers are adjusted to be within specific ranges, so that good device performances could be produced under a plurality of P:N ratios, thereby providing more possibilities for the selection of devices.
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Patent Agency Ranking
公开(公告)号：US20220238831A1
公开(公告)日：2022-07-28
申请号：US17615558
申请日：2021-01-09
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Lei CHEN , Congcong JIA
Abstract: An organic light-emitting diode (OLED) device includes a first electrode, a light-emitting layer, an electron blocking layer and a second electrode. A material of the light-emitting layer includes a host material and a trap material. A lowest unoccupied molecular orbital energy level of the trap material is lower than a lowest unoccupied molecular orbital energy level of the host material, a highest occupied molecular orbital energy level of the trap type material is not higher than a highest occupied molecular orbital energy level of the host material, and the lowest unoccupied molecular orbital energy level of the trap material is lower than a lowest unoccupied molecular orbital energy level of the electron blocking layer. The first electrode, the light-emitting layer, the electron blocking layer and the second electrode are stacked in sequence.
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公开(公告)号：US20210225877A1
公开(公告)日：2021-07-22
申请号：US16772272
申请日：2019-12-19
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yanan NIU , Kuanjun PENG , Jiushi WANG , Zhanfeng CAO , Feng ZHANG , Qi YAO , Wusheng LI , Feng GUAN , Lei CHEN , Jintao PENG , Tingting ZHOU
IPC: H01L27/12
Abstract: The present disclosure provides a display substrate and a manufacturing method thereof, and a display device. In the display substrate of the present disclosure, a first transistor comprises a first gate electrode, a first electrode, a second electrode, and a first active layer; and a second transistor comprises a second gate electrode, a third electrode, a fourth electrode, and a second active layers, wherein the first active layer comprises a silicon material, the second active layer comprises an oxide semiconductor material, and wherein the third electrode and the first gate electrode are disposed in the same layer, and the fourth electrode and the first electrode, the second electrodes are disposed in the same layer.
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公开(公告)号：US20210028315A1
公开(公告)日：2021-01-28
申请号：US16641078
申请日：2019-02-22
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Zhaohui QIANG , Feng GUAN , Zhi WANG , Yupeng GAO , Yang LYU , Chao LI , Jianhua DU , Lei CHEN
IPC: H01L29/786 , H01L29/66 , H01L29/45 , H01L29/417
Abstract: The present disclosure provides a thin film transistor, a pixel structure, a display device, and a manufacturing method. The thin film transistor includes: a gate on the substrate; a gate insulating layer covering the gate and the substrate; a first support portion and a second support portion, which are provided on the gate insulating layer covering the substrate and located on both sides of the gate, wherein the first support portion is not connected to the second support portion; a semiconductor layer on the first support portion, the second support portion, and the gate insulating layer covering the gate; and a source and a drain respectively connected to the semiconductor layer. The first support portion and the second support portion are respectively configured to support the semiconductor layer.
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公开(公告)号：US20190324304A1
公开(公告)日：2019-10-24
申请号：US16074827
申请日：2018-01-15
Inventor： Lei CHEN , Xuerong WANG , Jingzhe FANG , Yang ZHAO , Lingyun SHI , Haiwei SUN , Qi ZHANG
IPC: G02F1/1334 , G02F1/1343 , G02F1/155 , H04N5/225
Abstract: The present disclosure relates to the field of display technology, and provides a photographic camera and a display device. The photographic camera includes a photographic unit and a light control structure disposed at a light entrance side of the photographic unit. Specifically, the light control structure includes a first electrode layer and a second electrode layer disposed opposite to each other, as well as an adjustment layer disposed between the first electrode layer and the second electrode layer. The first electrode layer and the second electrode layer are configured to form an electric field for controlling the light transmittance of the adjustment layer when a voltage is applied thereto.
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10.发明申请公开(公告)号：US20190006868A1
公开(公告)日：2019-01-03
申请号：US15576644
申请日：2017-07-17
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Chen SONG , Airong LIU , Tangxiang WANG , Lei CHEN
CPC classification number: H02J7/0068 , H02J7/345 , H03F3/45475 , H03F2200/129 , H03F2203/45116 , H03F2203/45514 , H03K5/24
Abstract: A method is disclosed for controlling charging/discharging of a capacitor module. The capacitor module includes a plurality of branches connected in parallel, each of which includes a capacitor and a switch connected in series with the capacitor. The method includes measuring a first charge/discharge time for the capacitor module being charged/discharged from an initial voltage to an intermediate voltage, and To adjusting a second charge/discharge time for the capacitor module being further charged/discharged from the intermediate voltage to a target voltage by controlling on/off of at least one of the switches depending on the first charge/discharge time, the intermediate voltage being between the initial voltage and the target voltage. Also disclosed are an apparatus for controlling charging/discharging of a capacitor module and a display apparatus including the apparatus.
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