公开(公告)号：US20240407186A1

公开(公告)日：2024-12-05

申请号：US18800299

申请日：2024-08-12

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhigao LU ,  Yichi ZHANG

IPC: H10K50/11 ,  H10K50/115 ,  H10K59/12 ,  H10K59/122 ,  H10K71/00 ,  H10K101/30 ,  H10K101/40 ,  H10K102/00

Abstract: A light-emitting substrate includes a base; a first material layer and a second material layer that are disposed on the base, and an etch stop layer between the first material layer and the second material layer. The first material layer is closer to the base than the second material layer. The second material layer includes a plurality of patterns, and each pattern and the first material layer have an overlapping region therebetween. The etch stop layer includes at least portions in respective overlapping regions. A portion of the etch stop layer located in each overlapping region is in contact with the first material layer and the second material layer.

公开(公告)号：US20240276756A1

公开(公告)日：2024-08-15

申请号：US18570144

申请日：2022-08-24

Applicant: Beijing BOE Technology Development Co., Ltd. ,  BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhigao LU ,  Yichi ZHANG ,  Hui GUO

IPC: H10K50/17 ,  H10K50/15 ,  H10K71/12 ,  H10K71/60 ,  H10K102/00

CPC classification number: H10K50/171 ,  H10K50/15 ,  H10K71/12 ,  H10K71/60 ,  H10K2102/351

Abstract: A display panel (100), a method for manufacturing a display panel and a display apparatus are provided. The display panel (100) includes a first electrode layer (2), an electron transport layer (3), a light emitting layer (4), a hole transport layer (5), a hole injection layer (6) and a second electrode layer (7), which are sequentially stacked; a material of the hole injection layer (6) includes a first metal oxide and a second metal oxide, the first metal oxide and the second metal oxide each include a first metal element, and an outermost electron number of the first metal element in the first metal oxide is different from that of the first metal element in the second metal oxide. That is, the valences of the first metal element in the two metal compounds are different from each other, so that the hole injection capability is improved.

公开(公告)号：US20220310957A1

公开(公告)日：2022-09-29

申请号：US17611930

申请日：2020-10-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhigao LU ,  Yichi ZHANG

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

Abstract: A light-emitting substrate includes a base; a first material layer and a second material layer that are disposed on the base, and an etch stop layer between the first material layer and the second material layer. The first material layer is closer to the base than the second material layer. The second material layer includes a plurality of patterns, and each pattern and the first material layer have an overlapping region therebetween. The etch stop layer includes at least portions in respective overlapping regions. A portion of the etch stop layer located in each overlapping region is in contact with the first material layer and the second material layer. Energy level(s) of the portion of the etch stop layer located in each overlapping region are matched with energy levels of the first material layer and the second material layer at corresponding positions.

公开(公告)号：US20240292647A1

公开(公告)日：2024-08-29

申请号：US18022153

申请日：2022-04-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD. ,  Beijing BOE Technology Development Co., Ltd.

Inventor： Zhigao LU

IPC: H10K50/16 ,  H10K50/15 ,  H10K71/12 ,  H10K71/60 ,  H10K85/60 ,  H10K102/00

CPC classification number: H10K50/16 ,  H10K50/15 ,  H10K71/12 ,  H10K71/60 ,  H10K85/615 ,  H10K85/633 ,  H10K85/6572 ,  H10K2102/351

Abstract: A light-emitting device including a first electrode and a second electrode opposite to each other, and a light-emitting layer and an electron transport layer therebetween, where the electron transport layer is between the first electrode and the light-emitting layer, a material of the electron transport layer includes a first metal oxide, the light-emitting device further includes an intervening layer on a side of the electron transport layer, the intervening layer including a second metal element, a form the second metal element in the intervening layer includes a form chemically bonded to the first metal oxide and a form of a metal simple substance; a content of the second metal element in the second form is greater than a content of the second metal element in the first form; and the second metal element has an activity greater than an activity of the metal element in the first metal oxide.

公开(公告)号：US20240243234A1

公开(公告)日：2024-07-18

申请号：US18273300

申请日：2021-10-11

Applicant: Beijing BOE Technology Development Co., Ltd. ,  BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhigao LU

IPC: H01L33/50 ,  H01L25/075 ,  H01L33/00

CPC classification number: H01L33/502 ,  H01L25/0753 ,  H01L33/0095 ,  H01L2933/0016

Abstract: The present disclosure provides a display panel and a display apparatus. The display panel includes a first electrode layer, an electron transport layer, a light emitting layer, a hole transport layer, a hole injection layer, and a second electrode layer, which are sequentially stacked, a material of the hole injection layer includes a first metal oxide and a second metal oxide, which contain the same metal element, the number of outermost electrons of the metal element in the first metal oxide is different from the number of outermost electrons of the metal in the second metal oxide. In addition, the hole injection layer further includes a metal M and a third metal oxide MOy, the third metal oxide MOy is formed by an oxidation-reduction reaction between the metal M and the first metal oxide. The hole injection layer may be of a single layer or a multi-layer structure.

公开(公告)号：US20240315067A1

公开(公告)日：2024-09-19

申请号：US18273263

申请日：2022-07-18

Applicant: Beijing BOE Technology Development Co., Ltd. ,  BOE Technology Group Co., Ltd.

Inventor： Zhigao LU

IPC: H10K50/17 ,  H10K50/115 ,  H10K71/12

CPC classification number: H10K50/17 ,  H10K50/115 ,  H10K71/12

Abstract: Provided are a quantum dot light-emitting device and a method for manufacturing same, and a display apparatus. The quantum dot light-emitting device includes: a quantum dot light-emitting layer and a hole injection layer, which is arranged on one side of the quantum dot light-emitting layer, wherein the quantum dot light-emitting layer includes a first surface close to one side of the hole injection layer, a passivation function layer is arranged on the first surface, and the passivation function layer is configured to modify the first surface.

公开(公告)号：US20240274750A1

公开(公告)日：2024-08-15

申请号：US18637476

申请日：2024-04-17

Applicant: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD. ,  BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhigao LU

IPC: H01L33/06 ,  H01L25/075 ,  H01L33/00

CPC classification number: H01L33/06 ,  H01L25/0753 ,  H01L33/0083 ,  H01L2933/0016

Abstract: A light-emitting device is provided. The light-emitting device includes a first electrode, a second electrode, and a quantum dot light-emitting layer and a hole transport doped layer that are located between the first electrode and the second electrode. The hole transport doped layer is located between the quantum dot light-emitting layer and the second electrode. The hole transport doped layer includes a mixture of a first hole transport material and a metal material.