公开(公告)号：US12178062B2

公开(公告)日：2024-12-24

申请号：US17260563

申请日：2020-04-09

Applicant: BOE Technology Group Co., Ltd.

Inventor： Haiyan Sun ,  Meishan Xu ,  Xiaojin Zhang ,  Changho Lee ,  Dan Wang

IPC: H10K50/13 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/18 ,  H10K59/122 ,  H10K101/30 ,  H10K101/40

Abstract: An OLED display substrate includes a base substrate with a display region arranged thereon. First, second and third sub-pixels are arranged in the display region. A first electrode layer, a pixel defining layer, a second electrode layer, and organic functional layers are arranged in the display region. The organic functional layers include first, second and third light-emitting layers. The first light-emitting layer covers the display region and is an integral structure. The second and third light-emitting layers are arranged on a side of the first light-emitting layer towards the second electrode layer. An orthographic projection of each sub light-emitting layer of the second and third light-emitting layers on the base substrate completely covers an orthographic projection of an opening of the pixel defining layer on the base substrate, and does not overlap with orthographic projections of other openings of the pixel defining layer on the base substrate.

公开(公告)号：US11930651B2

公开(公告)日：2024-03-12

申请号：US17344809

申请日：2021-06-10

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xinghua Liu ,  Xiaojin Zhang ,  Haiyan Sun

IPC: H10K50/11 ,  H10K50/18 ,  H10K101/40 ,  H10K101/10 ,  H10K101/30

CPC classification number: H10K50/11 ,  H10K50/18 ,  H10K2101/10 ,  H10K2101/30 ,  H10K2101/40

Abstract: Organic luminescent material, includes: host material, TADF sensitizer, and fluorescent-luminescent material; wherein absolute value of difference between LUMO level of the host material and LUMO level of the TADF sensitizer is not more than 0.4 eV, and absolute-value of difference between HOMO level of the host material and HOMO level of the TADF sensitizer is not more than 0.4 eV; absolute-value of LUMO level of the fluorescent-luminescent material is not more than absolute-value of the LUMO level of the host material and the LUMO level of the TADF sensitizer, and/or absolute-value of HOMO level of the fluorescent-luminescent material is not less than an absolute-value of the HOMO level of the host material and absolute-value of the HOMO level of the TADF sensitizer; and emission-spectrum of the host material overlaps an absorption-spectrum of the TADF sensitizer, and emission-spectrum of the TADF sensitizer overlaps absorption-spectrum of the fluorescent-luminescent material.

公开(公告)号：US11342392B2

公开(公告)日：2022-05-24

申请号：US16642580

申请日：2019-03-18

Applicant: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD. ,  BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Guoqiang Tang ,  Xiaojin Zhang ,  Guoqiang Ma

IPC: H01L27/30 ,  H01L27/32 ,  G06V40/13 ,  H01L51/50 ,  G06F3/042

Abstract: A display panel and a manufacturing method thereof are disclosed. The display panel includes: a base substrate; a first sub-pixel disposed on the base substrate and including a first light-emitting device configured to emit visible light for display operation; a second a light-emitting device overlapped with the first light-emitting device in a direction perpendicular to the base substrate and configured to emit infrared light; and a first photosensitive device disposed on the base substrate and configured to sense light obtained after the infrared light is reflected.

公开(公告)号：US10797260B2

公开(公告)日：2020-10-06

申请号：US16453422

申请日：2019-06-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Dini Xie ,  Wei Li ,  Xiaojin Zhang

IPC: H01L51/00 ,  H01L27/00 ,  H01L51/52 ,  H01L27/32 ,  H01L51/56

Abstract: Embodiments of the present disclosure provide an OLED substrate and a fabrication method thereof, and a display panel. The method for fabricating an OLED substrate includes: forming an auxiliary cathode in a display region on a base substrate; forming an organic material functional layer in the display region on the base substrate where the auxiliary cathode is formed; applying a voltage to the auxiliary cathode to deform the auxiliary cathode, such that the organic material functional layer is ruptured by the deformed auxiliary cathode to form a connection channel; and forming a cathode in the display region on the base substrate where the organic material functional layer is formed. The cathode is electrically connected to the auxiliary cathode at the connection channel.

公开(公告)号：US10673007B2

公开(公告)日：2020-06-02

申请号：US16054550

申请日：2018-08-03

Applicant: BOE TECHNOLOGY GROUP CO., LTD. ,  ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.

Inventor： Xiaojin Zhang ,  Lei Chen ,  Dini Xie ,  Dan Wang

IPC: H01L51/52 ,  H01L27/32 ,  G02B5/30 ,  H01L51/56 ,  H01L51/00

Abstract: The present disclosure provides an organic light emitting diode (OLED) device and a method for manufacturing the same, an OLED display substrate and an OLED display device. The OLED device of the present disclosure comprises a substrate, and a first electrode, a light emitting layer and a second electrode arranged on the substrate, wherein the light emitting layer comprises fibers of p-phenylene based polymer as a host material, and the fibers of p-phenylene based polymer are arranged in a first orientation; and wherein the light emitted by the fibers of p-phenylene based polymer arranged in the first orientation is linearly polarized light in a first direction. The OLED device of the present disclosure can simultaneously ensure a good contrast, brightness and light transmittance.

公开(公告)号：US10319290B2

公开(公告)日：2019-06-11

申请号：US15321892

申请日：2016-04-14

Applicant: BOE TECHNOLOGY GROUP CO., LTD. ,  ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.

Inventor： Xiaojin Zhang ,  Xiang Feng ,  Dini Xie

IPC: G09G3/14 ,  H01L27/32 ,  H01L51/00 ,  H01L51/50 ,  H01L51/52 ,  H01L51/56 ,  G09G3/3208

Abstract: The present invention provides an electroluminescent device, a manufacturing method and driving method thereof, and a display device. The electroluminescent device comprises a transparent substrate, and a first light emitting unit and a second light emitting unit disposed at both sides of the transparent substrate respectively, wherein the first light emitting unit and the second light emitting unit have the same light output direction and are connected to two control circuit respectively. In the present invention, a parallel device structure is adopted to achieve independent control of two light emitting units in a single electroluminescent device, not only the color temperature is adjustable, but also the light emitting efficiency of the device can be increased. Also the transparent substrate can be fabricated using polymers having a refractive index adapted to the light emitting material, thereby reducing the optical waveguide loss in the device and realizing display of flexible device.

公开(公告)号：US10267964B2

公开(公告)日：2019-04-23

申请号：US15322688

申请日：2016-03-09

Applicant: BOE Technology Group Co., Ltd. ,  Ordos Yuansheng Optoelectronics Co., Ltd.

Inventor： Xiaojin Zhang

IPC: G02B5/28 ,  G02F1/1335

Abstract: The present disclosure provides a color filter substrate, a method for producing the same and a display apparatus. The color filter substrate includes a base substrate; a photonic crystal layer located on the base substrate; a plurality of light emitting medium layers corresponding to pixels of different colors located on the photonic crystal layer, wherein the light emitting medium layer is capable of emitting light of corresponding color under excitation of light from a backlight source; a transflective layer located on the light emitting medium layers; wherein the photonic crystal layer is used to reflect the light emitted from the light emitting medium layers to the transflective layer, so that the light is oscillated and interferes between the photonic crystal layer and the transflective layer and finally exits from the transflective layer.