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公开(公告)号：US20250127008A1
公开(公告)日：2025-04-17
申请号：US18294613
申请日：2023-05-19
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiaojin Zhang , Haiyan Sun
IPC: H10K59/50 , G02F1/1335 , H10K59/122 , H10K59/126 , H10K59/80
Abstract: A display panel includes a backplane and a plurality of light-emitting devices located on the backplane. A light-emitting device includes a first electrode and a second electrode arranged oppositely, the first electrode being closer to the backplane than the second electrode; a light extraction layer located on a light exit side of the plurality of light-emitting devices, the light extraction layer being configured to allow circularly polarized light of a first rotation direction to pass through and reflect circularly polarized light of a second rotation, the first rotation direction being different from the second rotation direction; and an anti-reflection layer located on the light extraction layer, the anti-reflection layer being configured to allow the circularly polarized light of the first rotation direction to pass through.
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公开(公告)号：US11482138B2
公开(公告)日：2022-10-25
申请号：US16958829
申请日：2019-12-25
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Congcong Jia , Xiaojin Zhang
Abstract: An electroluminescent display panel, a method for manufacturing the same, and a display device are disclosed, wherein the electroluminescent display panel comprises a bending region and a non-bending region, a plurality of first pixels arranged in an array are provided in the non-bending region, a plurality of second pixels arranged in an array are provided in the bending region, and an open area of the second pixels is smaller than that of the first pixels; in the bending region, at least one elastic region with an extending direction consistent with a bending axis direction is provided at a gap of the second pixels along a direction perpendicular to the bending axis direction, a groove is provided in an insulating composite film layer in each of the elastic region, and the insulating composite film layer comprises a planarization layer and a pixel definition layer positioned over the planarization layer; an elastic member is filled in the groove, which has an elastic modulus greater than that of the planarization layer.
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公开(公告)号：US11360507B2
公开(公告)日：2022-06-14
申请号：US16624076
申请日：2019-04-15
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiaojin Zhang , Dan Wang , Lei Chen
Abstract: A display panel includes: a flexible substrate, and the flexible substrate includes an intermediate region and a preset bending region located at at least one side of a periphery of the intermediate region; a display layer located at a side of the flexible substrate; and a transparent cover film layer located at a side of the display layer away from the flexible substrate, and the transparent cover film layer includes a first portion located at a side of the display layer away from the intermediate region, and a second portion located at a side of the display layer away from the preset bending region. The first portion is connected to the second portion, and the thickness of at least partial region of the second portion progressively decreases in a direction away from the first portion.
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公开(公告)号：US12178061B2
公开(公告)日：2024-12-24
申请号：US17600278
申请日：2020-11-30
Applicant: BOE Technology Group Co., Ltd.
Inventor： Xiaojin Zhang , Huiyun Yang , Changho Lee
IPC: H10K50/12 , H10K101/20 , H10K101/30
Abstract: The disclosure relates to an organic light emitting diode, a method for manufacturing the same, and a display panel. The organic light emitting diode includes: a first electrode; a second electrode disposed opposite to the first electrode; a light-emitting layer between the first electrode and the second electrode; the light-emitting layer includes a first light-emitting sub-layer and a second light-emitting sub-layer; the first light-emitting sub-layer includes a host material, a TADF sensitizer and a fluorescent guest material; the second light-emitting sub-layer includes the host material or includes the host material and the TADF sensitizer. The light-emitting layer of the organic light emitting diode of the present disclosure includes the first light-emitting sub-laver and the second light-emitting sub-layer, and thus the luminous efficiency of the red light-emitting device, the green light-emitting device, and the blue light-emitting device can be harmonized by effectively adjusting a thickness of the second light-emitting sub-layer.
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公开(公告)号：US20240306495A1
公开(公告)日：2024-09-12
申请号：US18025982
申请日：2022-05-30
Applicant: BOE Technology Group Co., Ltd.
Inventor： Siqi Wang , Haiyan Sun , Lixia Qiu , Xiaojin Zhang , Dan Wang
IPC: H10K85/60 , H10K50/18 , H10K101/40
CPC classification number: H10K85/6572 , H10K85/615 , H10K85/636 , H10K85/654 , H10K85/657 , H10K85/6574 , H10K50/181 , H10K2101/40
Abstract: The present application provides a light emitting device and a displaying device, which relates to the technical field of displaying. The light emitting device includes a first electrode and a second electrode; a luminescent layer, located between the first electrode and the second electrode, including a host material and a thermally activated delayed-fluorescence material; and an electron blocking layer, located between the luminescent layer and the first electrode; and 0.1 eV
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Patent Agency Ranking
公开(公告)号：US10323993B2
公开(公告)日：2019-06-18
申请号：US15737254
申请日：2017-05-25
Inventor： Xiaojin Zhang , Chengsheng Yu , Dini Xie
Abstract: Embodiments of this disclosure provide an optical resonance device, a force measuring device and method, a modulus measuring method and a display panel. The optical resonance device includes: a light emitting layer, a reflecting layer, and a transflective layer. The light emitting layer is configured to generate light. The reflecting layer is arranged at one side of the light emitting layer and is configured to reflect the light generated by the light emitting layer. The transflective layer is arranged at the other side of the light emitting layer and is configured to transmit a portion of the light generated by the light emitting layer and reflect a portion of the light generated by the light emitting layer. The force measuring device includes: an optical resonance device, at least one optical sensor, a bearing unit and a calculation unit.
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7.发明授权公开(公告)号：US09991398B2
公开(公告)日：2018-06-05
申请号：US15107094
申请日：2015-09-15
Applicant: BOE TECHNOLOGY GROUP CO., LTD
Inventor： Dini Xie , Meili Wang , Xianbin Xu , Liangchen Yan , Xiaojin Zhang
IPC: H01L29/786 , H01L29/66 , H01L27/12 , H01L29/24 , H01L21/473 , H01L21/02
CPC classification number: H01L29/78696 , H01L21/02565 , H01L21/02631 , H01L21/473 , H01L27/1225 , H01L29/24 , H01L29/66969 , H01L29/78618 , H01L29/78648 , H01L29/7869
Abstract: The present disclosure provides a thin film transistor array substrate and a fabrication method thereof, and a display device. The thin film transistor array substrate includes an active layer. The active layer is formed using a zinc target under an environment of oxygen and nitrogen in a sputtering chamber. A source/drain buffer layer is formed on the active layer using the zinc target by a sputtering process in the sputtering chamber under an environment containing one of oxygen and nitrogen.
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公开(公告)号：US20170141077A1
公开(公告)日：2017-05-18
申请号：US15322555
申请日：2016-04-20
Inventor： Xiaojin Zhang , Lei Chen , Dini Xie
CPC classification number: H01L25/048 , H01L27/3209 , H01L27/3237 , H01L51/0096 , H01L51/52 , H01L51/5275 , H01L51/5281 , H01L51/56 , H01L2251/5315
Abstract: The embodiments of the present invention provide an organic electroluminescent device, manufacturing method thereof and display device, which relate to the field of display technology. The organic electroluminescent device comprises: a basal substrate with phase retardation characteristic; a polarization structure provided on a side of the basal substrate; a first organic electroluminescent unit located on a side of the polarization structure departing from the basal substrate; a side of the first organic electroluminescent unit departing from the basal substrate being the light exit side of the organic electroluminescent device; and at least a second organic electroluminescent unit located on a side of the basal substrate departing from the first organic electroluminescent unit. The light color of the organic electroluminescent device is adjustable; the color purity of the emitted light is relatively high. In addition, the contrast of the organic electroluminescent device is also high.
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公开(公告)号：US12295198B2
公开(公告)日：2025-05-06
申请号：US17635705
申请日：2021-04-16
Applicant: BOE Technology Group Co., Ltd.
Inventor： Xiaojin Zhang , Huiyun Yang , Yong Wu , Dan Wang
IPC: H01L51/50 , H10K50/12 , H10K85/30 , H10K85/60 , H10K101/00 , H10K101/25 , H10K101/30 , H10K102/00
Abstract: The embodiments of the disclosure provide an organic electroluminescent device, including an anode, a cathode, an emitting layer arranged between the anode and the cathode, and an assistant luminescent layer located on one side, facing the anode, of the emitting layer. The assistant luminescent layer includes a first host material and a first fluorescent guest material. The emitting layer includes a second host material, a TADF material, and a second fluorescent guest material. The first host material and the first fluorescent guest material satisfy: S1(B)−T1(B)>0.2 eV; S1(B)>S1(C); T1(B)>T1(C); ∥HOMO(B)−LUMO(C)|−S1(C)|≤0.2 eV. The lowest singlet state energy of the first host material is S1(B), and the lowest triplet state energy is T1(B). The lowest singlet state energy of the first fluorescent guest material is S1(C), and the lowest triplet state energy is T1(C).
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公开(公告)号：US20240407219A1
公开(公告)日：2024-12-05
申请号：US18697209
申请日：2022-09-13
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiaojin Zhang , Haiyan Sun
IPC: H10K59/35 , H10K50/12 , H10K50/852 , H10K59/32 , H10K59/38 , H10K101/20
Abstract: A display substrate includes a backplate, an anode layer, a first auxiliary layer, a second auxiliary layer, a third auxiliary layer, first light-emitting layers of at least two different colors between the first and second auxiliary layers, second light-emitting layers of at least two different colors between the second and third auxlliary layers, and a cathode layer. The first light-emitting layers at least include first blue light-emitting layers. The second light-emitting layers at least include second blue light-emitting layers. The first auxiliary layer includes film layers; and a portion, opposite to a first blue light-emitting layer, of the film layers has an optical thickness of L1. The third auxiliary layer includes film layers stack; and a portion, opposite to the first blue light-emitting layer, of the film layers has an optical thickness of L2, where L1 and L2 satisfy the following formula: ❘ "\[LeftBracketingBar]" L 1 - L 2 ❘ "\[RightBracketingBar]" ≤ 20 n _ + ( k - 1 ) λ B 2 k - 1
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