公开(公告)号：US20210167310A1

公开(公告)日：2021-06-03

申请号：US16887531

申请日：2020-05-29

Applicant: BOE Technology Group Co., Ltd.

Inventor： Juanjuan YOU ,  Li SUN ,  Guang YAN

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/52 ,  G02F1/017 ,  G02F1/1335

Abstract: The present disclosure provides a quantum dot film including a plurality of quantum dot material layers arranged in stack, the plurality of quantum dot material layers having refractive indices gradually ascending along a thickness direction of the quantum dot film. The present disclosure further provides a color filter layer and a display device.

公开(公告)号：US20200227490A1

公开(公告)日：2020-07-16

申请号：US16613133

申请日：2019-04-08

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Guang YAN ,  Wenjun HOU ,  Juanjuan YOU ,  Donghui YU ,  Chunjing HU ,  Yongqi SHEN ,  Dongfang YANG

IPC: H01L27/32 ,  H01L33/24 ,  H01L33/06 ,  H01L51/56

Abstract: A pixel unit, a display panel, a display device and a method of manufacturing a pixel unit. The pixel unit includes a first sub-pixel unit and a second sub-pixel unit, each sub-pixel unit includes a first electrode, an emission layer, and a second electrode stacked on a substrate. An emission lifespan of the emission layer of the first sub-pixel unit is smaller than that of the emission layer of the second sub-pixel unit. An area of an orthographic projection of the emission layer of the first sub-pixel unit on the substrate is equal to that of the emission layer of the second sub-pixel unit on the substrate. An area of an orthographic projection of the first electrode of the first sub-pixel unit on the substrate is greater than an area of an orthographic projection of the first electrode of the second sub-pixel unit on the substrate.

公开(公告)号：US20180342563A1

公开(公告)日：2018-11-29

申请号：US15867084

申请日：2018-01-10

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Juanjuan YOU ,  Li SUN

IPC: H01L27/32 ,  H01L51/56

Abstract: The disclosure provides an OLED display substrate and a manufacturing method thereof, a display panel and a display apparatus. The OLED display substrate comprises a substrate which is partitioned into a plurality of light-emitting regions; and a pixel definition layer disposed on the substrate, on which each of opening holes corresponding to each of the light-emitting regions is provided; an uneven structure is also provided on a side of the pixel definition layer far away from the substrate.

公开(公告)号：US20160005989A1

公开(公告)日：2016-01-07

申请号：US14418256

申请日：2014-06-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jingxia GU ,  Juanjuan YOU ,  Chen TANG

IPC: H01L51/50 ,  C09K11/08 ,  C09K11/06 ,  H01L51/56 ,  H01L51/00

CPC classification number: H01L51/502 ,  C09K11/06 ,  C09K11/08 ,  C09K2211/14 ,  H01L51/0007 ,  H01L51/0039 ,  H01L51/504 ,  H01L51/56 ,  H01L2251/301 ,  Y02B20/181

Abstract: Disclosed are a light-emitting composite film, its manufacture method, and a white light organic electroluminescent device. Said light-emitting composite film comprises a first light-emitting layer and a second light-emitting layer. The first light-emitting layer comprises polyfluorene or polyfluorene derivatives, and the second light-emitting layer comprises quantum dots. A variety of color gamut and an improved brightness of devices can be achieved by the light-emitting composite film.

Abstract translation: 公开了发光复合膜，其制造方法和白光有机电致发光器件。 所述发光复合膜包括第一发光层和第二发光层。 第一发光层包含聚芴或聚芴衍生物，第二发光层包括量子点。 通过发光复合膜可以实现各种色域和设备亮度的提高。

公开(公告)号：US20250120251A1

公开(公告)日：2025-04-10

申请号：US18565779

申请日：2022-11-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Changyen WU ,  Juanjuan YOU ,  Wei QUAN ,  Cheng XU ,  Dandan ZHOU

IPC: H10K50/19 ,  H10K59/131 ,  H10K59/32 ,  H10K101/40

Abstract: A light emitting diode, a display substrate and a display device. In the light emitting diode, the first light emitting structure includes a first hole transport layer, a first light emitting layer and a first electron transport layer; the second light emitting structure includes a second hole transport layer and a second light emitting layer, an absolute value of a first energy level difference between a LUMO energy level of the first light emitting layer and a LUMO energy level of the first electron transport layer is less than an absolute value of a second energy level difference between a HOMO energy level of the second light emitting layer and a HOMO energy level of the second hole transport layer.

公开(公告)号：US20220278175A1

公开(公告)日：2022-09-01

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: H01L27/32 ,  H01L51/52 ,  H01L51/56

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.

公开(公告)号：US20210320152A1

公开(公告)日：2021-10-14

申请号：US17353372

申请日：2021-06-21

Applicant: BOE Technology Group Co., Ltd.

Inventor： Guang YAN ,  Changyen WU ,  Juanjuan YOU ,  Linlin WANG

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

Abstract: The present disclosure provides an organic light-emitting diode display substrate, a method of preparing the same, and a display device. The organic light-emitting diode display substrate includes: a light-emitting layer, a light modulation layer, and a color conversion layer, in which the light-emitting layer is configured to emit first color light, the light modulation layer and the color conversion layer are arranged on different light-exiting paths of the light-emitting layer, the color conversion layer is configured to convert first color light into second color light and third color light, and the light modulation layer is configured to modulate an emergent direction of first color light.

公开(公告)号：US20200176516A1

公开(公告)日：2020-06-04

申请号：US16546968

申请日：2019-08-21

Applicant: BOE Technology Group Co., Ltd.

Inventor： Guang YAN ,  Changyen WU ,  Juanjuan YOU ,  Linlin WANG

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

Abstract: The present disclosure provides an organic light-emitting diode display substrate, a method of preparing the same, and a display device. The organic light-emitting diode display substrate includes: a light-emitting layer, a light modulation layer, and a color conversion layer, in which the light-emitting layer is configured to emit first color light, the light modulation layer and the color conversion layer are arranged on different light-exiting paths of the light-emitting layer, the color conversion layer is configured to convert first color light into second color light and third color light, and the light modulation layer is configured to modulate an emergent direction of first color light.

公开(公告)号：US20180226602A1

公开(公告)日：2018-08-09

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

IPC: H01L51/50 ,  H01L51/52 ,  H01L51/56 ,  H01L27/32

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”.

公开(公告)号：US20150380683A1

公开(公告)日：2015-12-31

申请号：US14424170

申请日：2014-06-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Juanjuan YOU

IPC: H01L51/52 ,  H01L51/56

CPC classification number: H01L51/5256 ,  H01L51/0035 ,  H01L51/5253 ,  H01L51/56 ,  H01L2251/558

Abstract: Disclosed are encapsulation structures, encapsulation methods and display devices of organic electroluminescent devices. The encapsulation structure comprises: a substrate (3); an organic electroluminescent device (2) located on the substrate (3); and at least one film encapsulation layer (1) covering the organic electroluminescent device (2), wherein the film encapsulation layer (1) comprises an inorganic film (11) and a fluorocarbon polymer film (13). The encapsulation structure can effectively improve the film encapsulation layer (1)'s ability to block water and oxygen so as to effectively extend the lifetime of OLED devices.

Abstract translation: 公开了有机电致发光器件的封装结构，封装方法和显示器件。 封装结构包括：衬底（3）; 位于所述基板（3）上的有机电致发光器件（2）; 以及覆盖有机电致发光器件（2）的至少一个膜封装层（1），其中所述膜封装层（1）包括无机膜（11）和氟碳聚合物膜（13）。 封装结构可以有效地提高膜封装层（1）的阻挡水和氧的能力，从而有效延长OLED器件的使用寿命。