公开(公告)号：US20200225535A1

公开(公告)日：2020-07-16

申请号：US16552285

申请日：2019-08-27

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

Inventor： Yangpeng WANG ,  Haijun QIU ,  Benlian WANG ,  Yuedi HE ,  Weinan DAI ,  Jingyi FENG

IPC: G02F1/1335 ,  H01L27/32

Abstract: A display substrate, a display panel, and a display device are provided. The display substrate includes a transparent region and a pixel display region surrounding at least a portion of the transparent region. The display substrate includes a base substrate and a first optical layer located on the base substrate, the first optical layer is located within the pixel display region. A portion of the first optical layer close to the transparent region includes a first light ray deflection part configured to deflect image light of the pixel display region around the transparent region toward the transparent region for displaying in the transparent region.

公开(公告)号：US20180351125A1

公开(公告)日：2018-12-06

申请号：US15529877

申请日：2016-11-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yuedi HE ,  Yanzhao LI ,  Long WANG ,  Zhuo CHEN

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

CPC classification number: H01L51/5028 ,  C09K11/06 ,  C09K2211/185 ,  H01L51/0003 ,  H01L51/0085 ,  H01L51/5016 ,  H01L51/502 ,  H01L51/5072 ,  H01L51/56 ,  H01L2251/558

Abstract: The present disclosure provides a light-emitting device and manufacturing method thereof, and a display apparatus containing the light-emitting device. The light-emitting device comprises a quantum dot light-emitting layer, an electron transport layer, and an energy transfer layer. The quantum dot light-emitting layer comprises a quantum dot material. The energy transfer layer is between the quantum dot light-emitting layer and the electron transport layer. The energy transfer layer is configured to facilitate a transfer of energy from the electron transport layer to the quantum dot light-emitting layer such that the quantum dot light-emitting layer has an improved electroluminescence efficiency compared with the quantum dot light-emitting layer having an energy transferred directly from the electron transport layer without the energy transfer layer.

公开(公告)号：US20190115555A1

公开(公告)日：2019-04-18

申请号：US15567718

申请日：2017-05-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yuedi HE

IPC: H01L51/50 ,  H01L51/56

Abstract: The present disclosure provides a quantum-dot electroluminescent device, including a light-emitting layer, wherein the light-emitting layer is made of a thermally activated delayed fluorescence material and a quantum-dot light-emitting material which are capable of emitting white light by mixing together in proportion in case of excitation.

公开(公告)号：US20180053450A1

公开(公告)日：2018-02-22

申请号：US15501423

申请日：2016-05-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yanzhao LI ,  Changcheng JU ,  Yuedi HE ,  Feng JIANG

IPC: G09F9/30 ,  G02F1/01

CPC classification number: G09F9/30 ,  G02F1/01 ,  G02F1/0102 ,  G02F1/0121 ,  G02F1/0147 ,  G02F1/23 ,  G02F2201/17 ,  G02F2203/34 ,  G09G3/3648 ,  G09G3/3685 ,  G09G3/3688

Abstract: Embodiments of the invention disclose a display device, comprising a substrate, a plurality of pixels on the substrate and a backlight module located at a side of the substrate away from the pixels. Each pixel has a microcavity structure, in which the light emitted from the backlight module oscillates many times and exits as visible light of at least three colors, thereby enabling the display device to realize color display. Compared to the existing liquid crystal display device, this display device will not be limited by the manufacturing process when it is applied in the flexible display field. Compared to the existing organic electroluminescent display device, this display device will not have the problems of low yield, high cost and short life time, etc.