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公开(公告)号：US11937481B2
公开(公告)日：2024-03-19
申请号：US15734826
申请日：2020-04-09
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Guang Yan , Changyen Wu , Linlin Wang , Yongqi Shen , Juanjuan You , Li Sun
IPC: H10K59/38 , H10K50/86 , H10K59/121 , H10K71/00
CPC classification number: H10K59/38 , H10K50/865 , H10K59/121 , H10K71/00
Abstract: A display substrate, a manufacturing method thereof, and a display device are provided. The display substrate includes a base substrate and a white OLED display unit on the base substrate, and further includes: an optical adjustment structure on a light emitting side of the white OLED display unit, where the optical adjustment structure is in a peripheral region of each pixel region. The optical adjustment structure is configured to absorb light in a first wavelength range or convert light in a first wavelength range into light in a second wavelength range.
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公开(公告)号：US20210391563A1
公开(公告)日：2021-12-16
申请号：US17288588
申请日：2020-09-25
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Linlin Wang , Guang Yan
Abstract: Provided is a mold for manufacturing a display panel, including a display substrate and a barrier wall disposed on the display substrate, both the display substrate and the barrier wall being in an annular shape, and an organic layer being formed in an area enclosed by the barrier wall; wherein the mold includes: a bottom surface and a top surface disposed oppositely to each other, the bottom surface being proximal to the display substrate relative to the top surface; and wherein the mold surrounds the barrier wall, and an inner wall surface of the mold is in contact with an outer wall surface of the barrier wall, the inner wall surface of the mold being a surface of an inside of the mold and the outer wall surface of the barrier wall being a surface of an outside of the barrier wall.
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公开(公告)号：US11183120B2
公开(公告)日：2021-11-23
申请号：US16648522
申请日：2019-03-15
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Ling Wang , Pan Xu , Yi Cheng Lin , Xing Zhang , Ying Han , Guang Yan
IPC: G09G3/3258 , G09G3/3266 , G09G3/3291
Abstract: Disclosed are a pixel array substrate and a driving method thereof, a display panel, and a display device. The pixel array substrate includes a plurality of pixel units arranged in a plurality of pixel rows, and common electrodes distributed in the plurality of pixel rows. Each of the plurality of pixel units includes a light emitting element, first electrodes of light emitting elements of a plurality of pixel units in each of the plurality of pixel rows are electrically connected with each other to form a common electrode in the each of the plurality of pixel rows, and the common electrodes in the plurality of pixel rows are insulated from each other.
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公开(公告)号：US10977992B2
公开(公告)日：2021-04-13
申请号：US16624276
申请日：2018-11-30
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yicheng Lin , Yu Wang , Ling Wang , Pan Xu , Cuili Gai , Baoxia Zhang , Guang Yan , Dongfang Yang
IPC: G09G3/3233
Abstract: A driving compensation method for a pixel circuit includes: in a compensation phase of the pixel circuit, providing a preset signal to the control terminal of the driving transistor to write the preset signal to the control terminal of the driving transistor, to write internal loss voltage of the driving transistor to the first terminal of the driving transistor; wherein the compensation phase includes a first external compensation phase and a second external compensation phase; in the first external compensation phase, the preset signal is a sum of a reference signal and a threshold voltage of the driving transistor; in the second external compensation phase, the preset signal is the sum of the data signal and the threshold voltage of the driving transistor.
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公开(公告)号：US20200251535A1
公开(公告)日：2020-08-06
申请号：US15761372
申请日：2017-07-20
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xing Fan , Guang Yan , Lintao Zhang , Zheng Liu
Abstract: The present application discloses a display substrate including a plurality of pixels arranged in an array of matrix. Each of the plurality of pixels includes several OLED devices emitting light of different color. Each OLED device includes at least a first electrode, a second electrode, and an emitting layer located between the first electrode and the second electrode. At least one layer in either part of the first electrode or the emitting layer forming a microcavity characterized by an optical length. Any two OLED devices emitting light of same color in two adjacent pixels of the plurality of pixels have two microcavities respectively with different optical lengths. At least one OLED device emitting any one colored light in any one pixel of the plurality of pixels has a microcavity with different optical length from other OLED devices emitting light of different color in the same one pixel.
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Patent Agency Ranking
公开(公告)号：US10714702B2
公开(公告)日：2020-07-14
申请号：US15569100
申请日：2017-05-12
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Changyen Wu , Juanjuan You , Yingying Song , Guang Yan
Abstract: The present disclosure provides an organic light emitting diode (OLED) and a manufacturing method of the same, and a display device. The OLED comprises a first portion and a second portion which are manufactured by different processes and sequentially stacked, wherein the first portion comprises a first carrier transport layer, a first light emitting layer, and a connecting layer between the first light emitting layer and the second portion, which are sequentially stacked, the second portion comprises a second carrier transport layer, the first light emitting layer comprises an N-type base material and a P-type base material, and the connecting layer comprises a material corresponding to carriers in the first carrier transport layer. The OLED provided by the present disclosure can not only make light emission stable, maintain a good efficiency of light emission, but obtain light with an ideal color and prevent a phenomenon of “unexpected emission of light”.
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公开(公告)号：US09831431B2
公开(公告)日：2017-11-28
申请号：US15098482
申请日：2016-04-14
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
CPC classification number: H01L51/0096 , H01L51/5209 , H01L51/5218 , H01L51/5225 , H01L51/56 , H01L2251/558 , H04N9/30 , Y02E10/549
Abstract: An OLED curved-surface display panel is provided. The display panel includes a second transparent electrode, an organic luminescent layer, a first transparent electrode, and a reflective electrode, wherein the second transparent electrode is closer to a display side than the first transparent electrode, and wherein a thickness of the first transparent electrode increases from a middle portion of the first transparent electrode to an edge portion of the first transparent electrode.
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公开(公告)号：US09741972B2
公开(公告)日：2017-08-22
申请号：US14650983
申请日：2014-11-17
Applicant: BOE Technology Group Co., Ltd.
Inventor： Chang Yen Wu , Chin Lung Liao , Guang Yan
CPC classification number: H01L51/56 , H01L51/0003 , H01L51/0013 , H01L51/5012 , H01L51/5056 , H01L51/5072 , H01L51/5088 , H01L51/5092 , H01L51/5221
Abstract: An OLED device and a preparation method thereof, and a display device are provided. The OLED device comprises a substrate and a plurality of functional layers disposed sequentially on the substrate. One functional layer of the plurality of functional layers is a transition functional layer, the transition functional layer comprises a first sub-layer and a second sub-layer provided on the first sub-layer, the first sub-layer and the second sub-layer are made of a same material; and the first sub-layer is prepared by using a first process, and the second sub-layer is prepared by using a second process different from the first process.
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公开(公告)号：US09666647B2
公开(公告)日：2017-05-30
申请号：US14648091
申请日：2014-08-26
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
CPC classification number: H01L27/322 , H01L27/3211 , H01L27/3248 , H01L27/3258 , H01L27/3262 , H01L51/5012 , H01L51/56
Abstract: There are provided an OLED display and a method of manufacturing the same, in order to improved resolution of the OLED display. The OLED display comprises a substrate and a plurality of light emitting array units provided and periodically arranged on the substrate, each light emitting array unit comprising first, second and third light emitting units arranged in this order. Each light emitting unit comprises an anode, a cathode and an organic material functional layer located therebetween, the organic material functional layer comprising a light emitting layer. For each light emitting array unit, the first light emitting layer is formed within the first and second light emitting units, the second light emitting layer is formed within the second and third light emitting units, and the first and second light emitting layers are configured to emit light of different colors; in the second light emitting unit, the first and second light emitting layers overlap with each other and are configured so that only one of them is capable of emitting light. In each light emitting array unit, one of two light emitting units which have the same light emitting layer for emitting light further comprises a light color conversion layer arranged on a light exiting side of the one light emitting unit, the light color conversion layer being configured to convert light from its corresponding light emitting layer to light having a color different from those of light emitted by other light emitting units of the light emitting array unit.
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公开(公告)号：US11910688B2
公开(公告)日：2024-02-20
申请号：US17742194
申请日：2022-05-11
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Guang Yan , Changyen Wu , Li Sun , Juanjuan You , Chengyuan Luo , Ling Wang , Dongfang Yang
IPC: H10K50/856 , H10K59/38 , H10K50/858 , H10K71/00 , H10K50/844 , H10K59/12 , H10K102/00
CPC classification number: H10K59/38 , H10K50/856 , H10K50/858 , H10K71/00 , H10K50/844 , H10K59/12 , H10K59/1201 , H10K2102/3026
Abstract: An organic light emitting diode display substrate includes a light emitting unit layer, a first band gap layer and a color conversion layer. The first band gap layer and the color conversion layer are on a light exit path of the light emitting unit layer. The light emitting unit layer includes first, second and third light emitting units periodically arranged on a driving substrate and emitting light of a first color. The color conversion layer converts a part of the light of the first color into light of a second color and a third color. The first band gap layer is between the light emitting unit layer and the color conversion layer. The first band gap layer transmits the light of the first color in a light exit direction, and reflects the light of the second color and the light of the third color.
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