公开(公告)号：US12057532B2

公开(公告)日：2024-08-06

申请号：US17610400

申请日：2020-11-19

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Tianhao Lu ,  Wei Huang ,  Dejiang Zhao ,  Yu Tian ,  Xiaoyun Liu ,  Qian Sun ,  Qian Jin ,  Yang Li

IPC: H01L33/50 ,  F21V9/30 ,  H01L33/00 ,  H01L33/46 ,  H01L33/58

CPC classification number: H01L33/505 ,  F21V9/30 ,  H01L33/005 ,  H01L33/46 ,  H01L33/58 ,  H01L2933/0025 ,  H01L2933/0041

Abstract: A light-emitting device includes: a light-emitting element; a light conversion layer disposed on a light exit side of the light-emitting element and including a first portion and a second portion located on a side of the first portion in a first direction; a first material layer disposed between the light-emitting element and the light conversion layer and configured such that light emitted by the light-emitting element is incident into the light conversion layer; and a second material layer on a side of the first material layer in the first direction, a third material layer on a side face of the light conversion layer, and a fourth material layer on a side of the light conversion layer away from the light-emitting element, which are configured such that light unconverted by the light conversion layer is reflected on surfaces of a structure formed by the second, third and fourth material layers.

公开(公告)号：US20240276828A1

公开(公告)日：2024-08-15

申请号：US18568357

申请日：2021-06-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Qian Sun ,  Qian Jin ,  Wei Huang ,  Yu Tian ,  Tianhao Lu ,  Yang Li

IPC: H10K59/38 ,  H10K59/122 ,  H10K59/35 ,  H10K59/80 ,  H10K71/13

CPC classification number: H10K59/38 ,  H10K59/122 ,  H10K59/35 ,  H10K59/873 ,  H10K59/8792 ,  H10K71/135

Abstract: A display panel includes a light-emitting substrate, a first wavelength conversion layer and a second wavelength conversion layer. The light-emitting substrate includes multiple light-emitting structures corresponding to the pixels respectively, at least one light-emitting structure includes one or more first light-emitting layers emitting a first waveband light and one or more second light-emitting layers emitting a second waveband light laminated one on another, and a wavelength of the first waveband light is smaller than a wavelength of the second waveband light. The first wavelength conversion layer has multiple first wavelength conversion patterns corresponding to the light-emitting structures, the first wavelength conversion patterns are configured to perform up-conversion on the second waveband light emitted through the second light-emitting layers. The second wavelength conversion layer has multiple second wavelength conversion patterns corresponding to the light-emitting structures.

公开(公告)号：US20240268159A1

公开(公告)日：2024-08-08

申请号：US18565256

申请日：2021-06-17

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Qian Sun ,  Qian Jin ,  Yu Tian ,  Yang Li ,  Tianhao Lu

IPC: H10K59/122 ,  H10K59/12 ,  H10K59/126 ,  H10K59/38

CPC classification number: H10K59/122 ,  H10K59/1201 ,  H10K59/126 ,  H10K59/38

Abstract: A display panel includes: a driving substrate, a pixel definition layer, multiple light-emitting elements, a first encapsulation layer, a transparent heat insulation layer, a pixel isolation structure and a color conversion layer. The pixel definition layer includes multiple first pixel partitions arranged in an array form, and multiple first pixel regions are enclosed by adjacent first pixel partitions. The transparent heat insulation layer is arranged on a side of the first encapsulation layer away from the driving substrate, an orthographic projection of the transparent heat insulation layer onto the driving substrate at least covers an orthographic projection of each first pixel region onto the driving substrate. The pixel isolation structure includes multiple second pixel partitions arranged in an array form, multiple second pixel regions are enclosed by adjacent second pixel partitions.

公开(公告)号：US12015022B2

公开(公告)日：2024-06-18

申请号：US17358235

申请日：2021-06-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yu Tian ,  Qian Jin ,  Qian Sun ,  Wei Huang

IPC: H01L25/16 ,  H01L25/075 ,  H01L27/12 ,  H01L33/50 ,  H01L33/56 ,  H01L33/58 ,  H01L33/64

CPC classification number: H01L25/167 ,  H01L27/1248 ,  H01L33/507 ,  H01L33/56 ,  H01L33/58 ,  H01L33/641 ,  H01L2933/0041 ,  H01L2933/005 ,  H01L2933/0058

Abstract: The present disclosure provides a display panel, a method for manufacturing a display panel and a display device. The display panel includes a substrate, and a light emitting element array and a quantum dot color filter array arranged on the substrate, the quantum dot color filter array is arranged on a light exiting side of the light emitting element array, and quantum dot color filters in the quantum dot color filter array correspond to light emitting elements in the light emitting element array one to one, and the display panel further includes a blocking structure arranged between the light emitting element array and the quantum dot color filter array so as to block heat dissipated by the light emitting elements from being conducted to the quantum dot color filters.

公开(公告)号：US11895893B2

公开(公告)日：2024-02-06

申请号：US17354142

申请日：2021-06-22

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Qian Sun ,  Wei Huang ,  Qian Jin ,  Yichi Zhang

IPC: H10K59/38 ,  H10K50/858 ,  H10K71/00 ,  H10K59/12

CPC classification number: H10K59/38 ,  H10K50/858 ,  H10K71/00 ,  H10K59/12

Abstract: The present disclosure provides a display panel including: a first substrate, a light-emitting element array and a color-conversion layer array, the light-emitting element array includes a plurality of light-emitting elements, the color-conversion layer array includes a plurality of color-conversion layers, the light-emitting elements are used for generating and emitting first color light, the color-conversion layers are used for generating other color light under excitation of the first color light, and the display panel further includes a first band-pass filtering layer between the light-emitting element array and the color-conversion layer array and/or a second band-pass filtering layer positioned on one side, away from the light-emitting element array, of the color-conversion layer array.

公开(公告)号：US12203020B2

公开(公告)日：2025-01-21

申请号：US17921069

申请日：2021-05-08

Applicant: BOE Technology Group Co., Ltd.

Inventor： Qian Sun ,  Qian Jin ,  Tianhao Lu ,  Wei Huang

IPC: C09K11/77 ,  G02F1/1335 ,  G02F1/13357 ,  G03F7/00 ,  H01L33/50 ,  H10K59/80 ,  H01L25/16 ,  H10K59/12

Abstract: A color film substrate, a fabrication method therefor, and a display device. The color film substrate comprises a base substrate (1); a black matrix (2) is located on one side of the base substrate (1), the black matrix (2) having a plurality of pixel openings (21); a quantum dot color film layer (31, 32, 33) is located in the pixel openings (21) and comprises an ultraviolet light-curable quantum dot material; and a light conversion structure (4), which is located between a side wall of the black matrix (2) and a side wall of the quantum dot color film layer (31, 32, 33). When a quantum dot solution is UV cured, the light conversion structure (4) may convert ultraviolet light of 395 nm into ultraviolet light that has a shorter wavelength and higher energy. Since the light conversion structure (4) is arranged between the side wall of the black matrix (2) and the side wall of the quantum dot color film layer (31, 32, 33), the ultraviolet light that has a shorter wavelength and higher energy may be emitted from a side edge and irradiated to the quantum dot color film layer (31, 32, 33), which solves the problem of uneven UV curing of the quantum dot color film layer (31, 32, 33), thereby improving the light-emitting performance of the display device.