公开(公告)号：US20220238826A1

公开(公告)日：2022-07-28

申请号：US17483574

申请日：2021-09-23

Applicant: BOE Technology Group Co., Ltd.

Inventor： Huameng LIU ,  Haidong WU ,  Bei WANG ,  Xiaobo DU

IPC: H01L51/50 ,  H01L27/32 ,  G09G3/3208

Abstract: Disclosed are a light-emitting device, a display panel, and a driving method of the light-emitting device. The light-emitting device includes: a base substrate, a first electrode on a side of the base substrate, a second electrode on a side, facing away from the base substrate, of the first electrode, and at least two blue light-emitting layers located between the first electrode and the second electrode. Different blue light-emitting layers emit light with different wavelengths. The first electrode and the second electrode are configured to be applied with different voltages. A voltage difference between the first electrode and the second electrode includes a first threshold voltage and a second threshold voltage, and under control of the first threshold voltage, one of the blue light-emitting layers emits light; and under control of the second threshold voltage, another blue light-emitting layer emits light.

公开(公告)号：US20190058017A1

公开(公告)日：2019-02-21

申请号：US15534727

申请日：2016-12-19

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaobo DU

IPC: H01L27/32 ,  H01L51/00 ,  H01L51/56

CPC classification number: H01L27/3218 ,  H01L27/32 ,  H01L51/0011 ,  H01L51/56

Abstract: A pixel array, a method for fabricating the same, and an OLED array substrate are disclosed. The pixel array includes a plurality of pixels, wherein each pixel includes four sub-pixels, the four sub-pixels are of the same size and all in a shape of isosceles trapezoid, and the four sub-pixels are arranged into a form of half of a regular hexagon. A display panel having the above structure has a better rotational symmetry, as a result, a high resolution and homogeneity can be achieved for each direction of the display panel.

公开(公告)号：US20250133931A1

公开(公告)日：2025-04-24

申请号：US18693340

申请日：2023-01-03

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yansong LI ,  Haidong WU ,  Jingbo XU ,  Xiaobo DU ,  Pengfei ZUO ,  Na BI ,  Xiangmin WEN

IPC: H10K59/80 ,  H10K59/12 ,  H10K59/38 ,  H10K71/60 ,  H10K102/00

Abstract: The present disclosure provides a display substrate, a method for manufacturing the display substrate and a display apparatus, wherein the display substrate includes: a base substrate; an anode layer arranged on the base substrate and comprising a plurality of anodes arranged at intervals; a pixel defining layer disposed on the base substrate, the pixel defining layer defining a plurality of pixel areas and covering an edge area of each of the anodes; a light-emitting functional layer arranged on a side of the anode layer away from the base substrate, the light-emitting functional layer at least covering the pixel areas; and a cathode layer and a metal patterning layer arranged on a side of the light-emitting functional layer away from the base substrate.

公开(公告)号：US20240057368A1

公开(公告)日：2024-02-15

申请号：US18260876

申请日：2021-10-22

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yanjun HAO ,  Caiyu QU ,  Xiaobo DU

IPC: H10K50/15 ,  H10K59/35 ,  H10K71/60

CPC classification number: H10K50/156 ,  H10K59/35 ,  H10K71/60 ,  H10K2101/40

Abstract: A display panel and a manufacturing method therefor, and a display apparatus. The display panel includes: a hole transport layer; a buffer layer, including at least one of first and second buffer layers respectively in first and second sub-pixels; a light-emitting layer, HOMO energy level difference between the first light-emitting layer and the first hole transport layer being a first difference, and absolute value of HOMO energy level difference between the second light-emitting layer and the second hole transport layer being greater than 0 and less than the first difference; and a cathode. HOMO energy levels of first buffer sub-layers gradually increase in the direction from the first hole transport layer to the first light-emitting layer. HOMO energy level difference between the second light-emitting layer and the second buffer layer or the second buffer layer and the second hole transport layer is greater than or equal to 0.3 eV.

公开(公告)号：US20220293030A1

公开(公告)日：2022-09-15

申请号：US17513641

申请日：2021-10-28

Applicant: BOE Technology Group Co., Ltd.

Inventor： Haidong WU ,  Yansong LI ,  Guanyin WEN ,  Xiaobo DU ,  Bei WANG

IPC: G09G3/20 ,  G09G3/3208

Abstract: The present disclosure discloses a display panel, a display device, and a control method of the display device. The display panel includes sub-pixels of a plurality of colors, wherein the sub-pixels of the plurality of colors include first blue sub-pixels and second blue sub-pixels, and a wavelength of each first blue sub-pixel is smaller than a wavelength of each second blue sub-pixel. The first blue sub-pixels and the second blue sub-pixels are driven to perform image display when the display panel is in a regular display mode; and the second blue sub-pixels are driven to perform image display when the display panel is in an eye protection display mode.

公开(公告)号：US20220238828A1

公开(公告)日：2022-07-28

申请号：US17536801

申请日：2021-11-29

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xiaobo DU ,  Haidong WU ,  Yansong LI ,  Bei WANG

IPC: H01L51/50 ,  H01L51/56

Abstract: An electroluminescent device, a method for manufacturing the electroluminescent device, a display panel and a display device are provided in the embodiments of the present application. The electroluminescent device includes an anode layer, a first hole injection layer and a hole transport layer. The first hole injection layer is located between the anode layer and the hole transport layer; the first hole injection layer includes at least two secondary hole injection layers, and an equivalent resistance value of the at least two secondary hole injection layers is greater than a first threshold value.

公开(公告)号：US20200185482A1

公开(公告)日：2020-06-11

申请号：US16539253

申请日：2019-08-13

Applicant: BOE Technology Group Co., Ltd.

Inventor： Guanyin WEN ,  Haidong WU ,  Xiaobo DU ,  Yansong LI

IPC: H01L27/32 ,  H01L51/56

Abstract: The present disclosure provides a display substrate, a method for preparing the same, and a display device. The display substrate includes: a substrate, a display unit arranged on the substrate, and an ultraviolet shielding layer arranged on a side of the display unit away from the substrate, wherein the ultraviolet shielding layer covers at least a portion of the display unit and includes at least two ultraviolet absorbing materials having different ultraviolet absorption bands.

公开(公告)号：US20200028109A1

公开(公告)日：2020-01-23

申请号：US16383551

申请日：2019-04-12

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xiaobo DU

IPC: H01L51/52 ,  H01L51/50

Abstract: An organic light emitting diode device, a manufacturing method thereof, a display panel and a display device are disclosed. The organic light emitting diode device comprises an anode, a hole transport layer, an organic light emitting layer, an electron transport layer and a cathode, sequentially disposed in lamination, wherein the hole transport layer comprises N sub-hole transport layers, where N≥2, and a (i+1)th sub-hole transport layer is disposed on a side of a ith sub-hole transport layer away from the anode, the highest occupied molecular orbital (HOMO) energy level of a host material of the ith sub-hole transport layer being greater than the HOMO energy level of a host material of the (i+1)th sub-hole transport layer, where 1≤i≤N−1.

公开(公告)号：US20190256964A1

公开(公告)日：2019-08-22

申请号：US16080454

申请日：2018-01-08

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaobo DU

IPC: C23C14/04 ,  C23C14/24

Abstract: An evaporation device and a manufacturing apparatus of a display device are disclosed, the evaporation device is configured to evaporate a substrate, and a side of the substrate is provided with a mask. The evaporation device includes a magnetic adsorption layer and a thermosensitive layer at a side of the magnetic adsorption layer, wherein the thermosensitive layer is located between the magnetic adsorption layer and a side of the substrate far away from the mask, and the thermosensitive layer is configured to adjust a distance between the mask and the magnetic adsorption layer.

公开(公告)号：US20190074474A1

公开(公告)日：2019-03-07

申请号：US15543750

申请日：2017-01-11

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaobo DU

IPC: H01L51/52 ,  G02F1/1333 ,  H01L51/00

Abstract: A flexible display substrate, a manufacturing method thereof and a flexible display device are provided. The flexible display substrate includes a flexible substrate and a cathode layer arranged on the flexible substrate and provided with at least one gap.