公开(公告)号：US20240298497A1

公开(公告)日：2024-09-05

申请号：US18026004

申请日：2022-06-20

Applicant: BOE Technology Group Co., Ltd.

Inventor： Bei Wang ,  Guanyin Wen ,  Xiaobo Du ,  Huameng Liu ,  Yanjun Hao

IPC: H10K59/38 ,  H10K50/115 ,  H10K50/13

CPC classification number: H10K59/38 ,  H10K50/131 ,  H10K50/115

Abstract: A light emitting device includes: a first electrode; a second electrode disposed opposite to the first electrode; and multiple emission layers stacked between the first electrode and the second electrode. The emission layers include at least one first emission layer and at least one second emission layer. The first emission layer includes a first luminescent material, and is configured to emit a first light when driven by a current or voltage; the second emission layer includes a second luminescent material, and is configured to emit a second light when driven by the current or voltage; a luminous efficiency of the first luminescent material is greater than that of the second luminescent material; and a luminance conversion rate when performing optical excitation on color conversion materials by the first light is smaller than that when performing optical excitation on the color conversion materials by the second light.

公开(公告)号：US10886495B2

公开(公告)日：2021-01-05

申请号：US16209260

申请日：2018-12-04

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yansong Li ,  Haidong Wu ,  Na Li ,  Xiaobo Du ,  Guanyin Wen ,  Xing Fan

IPC: H01L51/52 ,  H01L51/56

Abstract: An OLED display substrate, a manufacturing method thereof, and a display device are provided. The OLED display substrate includes a reflective cathode layer, an organic light-emitting layer, a transparent anode layer and a high reflection layer sequentially arranged on a substrate, and the high reflection layer has reflectivity greater than a threshold.

公开(公告)号：US10008696B2

公开(公告)日：2018-06-26

申请号：US15511297

申请日：2016-03-22

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

Inventor： Renrong Gai ,  Minghua Xuan ,  Yun Qiu ,  Zhiliang Jiang ,  Guanyin Wen

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

CPC classification number: H01L51/5253 ,  H01L27/3244 ,  H01L51/5246 ,  H01L51/56 ,  H01L2251/301 ,  H01L2251/558

Abstract: The present disclosure provides a packaging method, a display panel, and a display device. The packaging method includes forming a glass adhesive on a packaging area of an OLED array substrate or on a packaging cover plate, aligning the packaging cover plate with the OLED array substrate, and applying, from a side of the packaging cover plate facing away from the OLED array substrate a laser to the glass adhesive, to sinter the glass adhesive, wherein the packaging method further includes forming a barrier layer on the packaging cover plate, the barrier layer being configured to block the laser from irradiating an OLED device on the OLED array substrate when the laser irradiates the glass adhesive.

公开(公告)号：US11825671B2

公开(公告)日：2023-11-21

申请号：US17334466

申请日：2021-05-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Songquan Wu ,  Xiaobo Du ,  Guanyin Wen ,  Cheng Han

IPC: H10K50/11 ,  H10K50/16 ,  H10K71/00 ,  H10K85/30 ,  H10K85/60 ,  H10K101/40 ,  H10K101/30 ,  H10K102/00

CPC classification number: H10K50/11 ,  H10K50/166 ,  H10K71/00 ,  H10K85/324 ,  H10K85/6572 ,  H10K2101/30 ,  H10K2101/40 ,  H10K2102/351

Abstract: The present disclosure provides an electroluminescent device and a method for preparing the same, a display panel and a display device. The electroluminescent device includes a light emitting layer, a cathode layer, and an electron transport layer arranged between the light emitting layer and the cathode layer. The electron transport layer includes at least a first electron transport material and a second electron transport material that have different LUMO energy levels, and a ratio EM1/EM2 of the weight content of the first electron transport material to that of the second electron transport material decreases in a direction from a surface thereof proximate to the cathode layer to a surface thereof proximate to the light emitting layer. The electroluminescent device of the present disclosure can improve its efficiency and lifetime.

公开(公告)号：US11199742B2

公开(公告)日：2021-12-14

申请号：US16072791

申请日：2017-12-15

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

Inventor： Wei Lin Lai ,  Guanyin Wen ,  Zhengyin Xu ,  Chien Pang Huang

IPC: G02F1/1335 ,  H01L27/32 ,  H01L51/52

Abstract: A display device includes a sub-pixel unit, the sub-pixel unit includes: a reflective liquid crystal display unit with a reflective display region, including a liquid crystal layer and a reflective layer; and a electroluminescent display unit with a light-emitting display region, wherein the light-emitting display region is overlapped with the reflective display region; wherein the reflective layer and the electroluminescent display unit are located on both sides of the liquid crystal layer respectively.

公开(公告)号：US10930893B2

公开(公告)日：2021-02-23

申请号：US15751703

申请日：2017-08-15

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

Inventor： Guanyin Wen ,  Lei Chen ,  Haidong Wu ,  Na Li

IPC: H01L51/52 ,  H01L51/56

Abstract: The present disclosure discloses an organic light-emitting diode device, a manufacturing method thereof and a display device. The organic light-emitting diode device comprises: a substrate (100); an organic light-emitting diode layer (200) on a side of the substrate (100); and a barrier layer (510) configured to block ultraviolet rays from entering the organic light-emitting diode layer, wherein the barrier layer is on a side of the organic light-emitting diode layer away from the substrate or on a side of the organic light-emitting diode layer close to the substrate. The organic light-emitting diode device can solve the technical problem of short service life due to the influence of ultraviolet rays in the sunlight.