Patents by Inventor Donglei LI

Donglei LI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12287544
    Abstract: In a backlight module of a display apparatus, the base substrate is a flat plate structure, so that the backlight module can be prevented from being subjected to a bending internal stress, thereby avoiding a damage to the backlight module and ensuring a yield of the display apparatus. At the same time, the difference of backlight brightness provided by the backlight module to different regions of the display panel is smaller, so that brightness uniformity of different regions of the display apparatus can be ensured, and a display effect of the display apparatus is better.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: April 29, 2025
    Assignees: BOE MLED Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Jiwei Sun, Hongli Zhu, Yubiao Li, Jiaxin Li, Kun Lu, Honghao Yu, Donglei Li
  • Patent number: 12276881
    Abstract: A light-emitting substrate includes a substrate and a plurality of light-emitting assemblies. The plurality of light-emitting assemblies are located on a side of the substrate. At least one light-emitting assembly includes a light-emitting element and a light adjustment portion arranged around the light-emitting element. The light adjustment portion includes a plurality of sub-structures spaced apart from each other. In any two sub-structures in the light adjustment portion in any direction away from the light-emitting element, a height of a sub-structure closer to the light-emitting element is less than a height of a sub-structure farther from the light-emitting element.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: April 15, 2025
    Assignees: BOE MLED TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Pei Qin, Yutao Hao, Hao Zhou, Donglei Li, Ying Chen, Honghao Yu, Jie Gao, Jiaxin Li, Jingran Niu, Jinpeng Li
  • Publication number: 20250081692
    Abstract: Provided are a light emitting substrate, a method for manufacturing same, and a display apparatus. The light emitting substrate includes a base substrate; a plurality of light emitting units located at a side of the base substrate; a plurality of protective structures located at a side of the plurality of light emitting units facing away from the base substrate; the plurality of protective structures each covers a respective one of the plurality of light emitting units; and a plurality of reflective patterns located at a side of the plurality of protective structures facing away from the plurality of light emitting units; orthographic projections of the plurality of reflective patterns on the base substrate fall within orthographic projections of the plurality of protective structures on the base substrate.
    Type: Application
    Filed: May 27, 2022
    Publication date: March 6, 2025
    Inventors: Honghao YU, Yutao HAO, Donglei LI, Ying CHEN, Jie GAO, Jiaxin LI, Pei QIN, Lili JIA
  • Publication number: 20250015056
    Abstract: A light-emitting substrate and a display device are provided. The light-emitting substrate includes a base substrate, a reflective layer, at least one pad, a light-emitting element and a connecting portion. The reflective layer includes an opening with a maximum size H1 in a first direction; the light-emitting element includes a first electrode and a second electrode arranged at intervals in a second direction, and a maximum size of the first electrode or the second electrode in the first direction is a first size K1; the connecting portion includes an edge radian region with a maximum size M in the first direction; the at least one pad includes a first pad, the first pad includes a first size portion, a minimum distance between the first size portion and the opening in the first direction is a second size K2 which satisfies: K2?0.5H1?0.5(K1+2M), and 50 ?m?H1?2K2?K1?100 ?m.
    Type: Application
    Filed: May 26, 2022
    Publication date: January 9, 2025
    Applicants: BOE MLED Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Ying Chen, Yutao Hao, Donglei Li, Lili Jia, Jingran Niu, Pei Qin, Honghao Yu, Jiaxin Li, Jie Gao, Xueqiao Li, Shanwei Yang
  • Publication number: 20240377678
    Abstract: The present disclosure discloses a display apparatus, and relates to the field of display technologies. In the backlight module of the display apparatus according to the present disclosure, the base substrate is a flat plate structure, so that the backlight module can be prevented from being subjected to a bending internal stress, thereby avoiding a damage to the backlight module and ensuring a yield of the display apparatus. At the same time, the difference of backlight brightness provided by the backlight module to different regions of the display panel is smaller, so that brightness uniformity of different regions of the display apparatus can be ensured, and a display effect of the display apparatus is better.
    Type: Application
    Filed: July 26, 2022
    Publication date: November 14, 2024
    Inventors: Jiwei SUN, Hongli ZHU, Yubiao LI, Jiaxin LI, Kun LU, Honghao YU, Donglei LI
  • Publication number: 20240377677
    Abstract: A light-emitting substrate includes a substrate and a plurality of light-emitting assemblies. The plurality of light-emitting assemblies are located on a side of the substrate. At least one light-emitting assembly includes a light-emitting element and a light adjustment portion arranged around the light-emitting element. The light adjustment portion includes a plurality of sub-structures spaced apart from each other. In any two sub-structures in the light adjustment portion in any direction away from the light-emitting element, a height of a sub-structure closer to the light-emitting element is less than a height of a sub-structure farther from the light-emitting element.
    Type: Application
    Filed: March 28, 2022
    Publication date: November 14, 2024
    Inventors: Pei QIN, Yutao HAO, Hao ZHOU, Donglei LI, Ying CHEN, Honghao YU, Jie GAO, Jiaxin LI, Jingran NIU, Jinpeng LI
  • Publication number: 20240369876
    Abstract: A light-emitting substrate includes a substrate, and a plurality of light-emitting devices, a plurality of driver chips and a plurality of supporting structures that are all disposed on a side of the substrate. Each driver chip is electrically connected to at least one light-emitting device, and each driver chip is covered by a supporting structure of the plurality of supporting structures.
    Type: Application
    Filed: July 15, 2024
    Publication date: November 7, 2024
    Applicants: BOE MLED Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jiaxin LI, Donglei LI, Honghao YU, Kun LU, Jiwei SUN, Taotao DUAN, Zhitao ZHANG
  • Patent number: 11829030
    Abstract: A backlight module and a display device are provided, and the backlight module includes: a substrate; a plurality of light-emitting elements arranged in an array on the substrate; and a reflective supporting structure on the substrate, wherein the reflective supporting structure has a plurality of openings, the plurality of openings correspond to the plurality of light-emitting elements one-to-one, and each of the plurality of light-emitting elements is accommodated in one of the plurality of openings, wherein the reflective supporting structure is configured to reflect light from the plurality of light-emitting elements, so that an angle between an exit direction of the reflected light and a first direction perpendicular to the substrate is less than a predetermined angle.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: November 28, 2023
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Honghao Yu, Lili Jia, Donglei Li, Ying Chen, Hui Liu, Jie Gao, Jiaxin Li
  • Patent number: 11630348
    Abstract: A backlight module and a display device are disclosed. The backlight module includes: a back plate (1); a middle frame (3) disposed on the back plate (1); a light-emitting substrate (2) disposed on the back plate (1) and in the middle frame (3), the light-emitting substrate (2) including a first light-emitting area (203) and a second light-emitting area (204) surrounding the first light-emitting area (203), and the second light-emitting area (204) being close to an edge of the light-emitting substrate (2); a light compensation structure (100) close to the edge of the light-emitting substrate (2), the light compensation structure (100) including one or more light conversion materials. The backlight module and the display device can improve the display effect.
    Type: Grant
    Filed: June 10, 2022
    Date of Patent: April 18, 2023
    Assignees: BOE MLED Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Pei Qin, Yutao Hao, Donglei Li, Hui Liu, Shuo Wang, Jiaxin Li, Ying Chen, Jie Gao, Honghao Yu
  • Publication number: 20220413342
    Abstract: A backlight module and a display device are disclosed. The backlight module includes: a back plate (1); a middle frame (3) disposed on the back plate (1); a light-emitting substrate (2) disposed on the back plate (1) and in the middle frame (3), the light-emitting substrate (2) including a first light-emitting area (203) and a second light-emitting area (204) surrounding the first light-emitting area (203), and the second light-emitting area (204) being close to an edge of the light-emitting substrate (2); a light compensation structure (100) close to the edge of the light-emitting substrate (2), the light compensation structure (100) including one or more light conversion materials. The backlight module and the display device can improve the display effect.
    Type: Application
    Filed: June 10, 2022
    Publication date: December 29, 2022
    Inventors: Pei QIN, Yutao HAO, Donglei LI, Hui LIU, Shuo WANG, Jiaxin LI, Ying CHEN, Jie GAO, Honghao YU
  • Publication number: 20220317517
    Abstract: A backlight module and a display device are provided, and the backlight module includes: a substrate; a plurality of light-emitting elements arranged in an array on the substrate; and a reflective supporting structure on the substrate, wherein the reflective supporting structure has a plurality of openings, the plurality of openings correspond to the plurality of light-emitting elements one-to-one, and each of the plurality of light-emitting elements is accommodated in one of the plurality of openings, wherein the reflective supporting structure is configured to reflect light from the plurality of light-emitting elements, so that an angle between an exit direction of the reflected light and a first direction perpendicular to the substrate is less than a predetermined angle.
    Type: Application
    Filed: October 16, 2020
    Publication date: October 6, 2022
    Inventors: Honghao Yu, Lili Jia, Donglei Li, Ying Chen, Hui Liu, Jie Gao, Jiaxin Li
  • Patent number: 11402677
    Abstract: An optical film includes a light-transmissive substrate and a first annular lens group. The light-transmissive substrate has a first surface and a second surface opposite to each other. The first annular lens group is disposed on the second surface, and the first annular lens group is configured to allow light to pass through. The reflectivity of the first annular lens group decreases along a direction away from a central axis of the first annular lens group, and an extending direction of the central axis is the same as a thickness direction of the light-transmissive substrate.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: August 2, 2022
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ying Chen, Shanshan Liu, Lili Jia, Bochang Wang, Donglei Li, Hui Liu, Honghao Yu
  • Patent number: 11125932
    Abstract: A light guide plate and a manufacturing method thereof, a backlight module, and a display device are provided. The light guide plate includes a light incident surface, a light reflection surface, and a light-emitting surface; the light reflection surface includes a first prism structure array, the first prism structure array includes first prisms arranged in sequence in a first direction, and the first direction is perpendicular to the light incident surface; the first prism structure array is configured to enable light emitted from the light incident surface to be emitted toward the light-emitting surface; and the light-emitting surface includes a second cylindrical structure array, the second cylindrical structure array includes second cylindrical structures arranged side by side in a second direction, the second direction is perpendicular to the first direction, and a first plane including the first direction and the second direction is perpendicular to the light incident surface.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: September 21, 2021
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Honghao Yu, Hao Zhou, Lili Jia, Donglei Li, Hui Liu, Ying Chen, Shanshan Liu
  • Publication number: 20210018675
    Abstract: A light guide plate and a manufacturing method thereof, a backlight module, and a display device are provided. The light guide plate includes a light incident surface, a light reflection surface, and a light-emitting surface; the light reflection surface includes a first prism structure array, the first prism structure array includes first prisms arranged in sequence in a first direction, and the first direction is perpendicular to the light incident surface; the first prism structure array is configured to enable light emitted from the light incident surface to be emitted toward the light-emitting surface; and the light-emitting surface includes a second cylindrical structure array, the second cylindrical structure array includes second cylindrical structures arranged side by side in a second direction, the second direction is perpendicular to the first direction, and a first plane including the first direction and the second direction is perpendicular to the light incident surface.
    Type: Application
    Filed: June 23, 2020
    Publication date: January 21, 2021
    Inventors: Honghao YU, Hao ZHOU, Lili JIA, Donglei LI, Hui LIU, Ying CHEN, Shanshan LIU
  • Publication number: 20210003874
    Abstract: An optical film includes a light-transmissive substrate and a first annular lens group. The light-transmissive substrate has a first surface and a second surface opposite to each other. The first annular lens group is disposed on the second surface, and the first annular lens group is configured to allow light to pass through. The reflectivity of the first annular lens group decreases along a direction away from a central axis of the first annular lens group, and an extending direction of the central axis is the same as a thickness direction of the light-transmissive substrate.
    Type: Application
    Filed: June 30, 2020
    Publication date: January 7, 2021
    Inventors: Ying CHEN, Shanshan LIU, Lili JIA, Bochang WANG, Donglei LI, Hui LIU, Honghao YU
  • Patent number: 10436974
    Abstract: The embodiments of the present disclosure provide a backlight module and a display device, which increase the brightness range of the lateral entrance backlight module, thereby improving the HDR display effect of the display device. The backlight module in the embodiment of the present disclosure includes at least two lateral entrance light guide plates, each lateral entrance light guide plate is provided with a light bar. The number of light bars of the backlight module is increased, thereby increasing the maximum brightness of the backlight module. The overall brightness variation range of the backlight module is thus increased. In addition, the light bar of each lateral entrance light guide plate can be separately controlled, thereby increasing the brightness range of the backlight module. Therefore, the backlight module provided by this solution can effectively improve the HDR display effect of the display device.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: October 8, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Jinku Lv, Yutao Hao, Ying Chen, Jian Li, Donglei Li, Bochang Wang, Zhanchang Bu
  • Patent number: 10228508
    Abstract: The present disclosure provides an optical membrane, a backlight module, a display device and a device for manufacturing the optical membrane. The optical membrane includes a strip-like strengthening member arranged on at least one edge of the optical membrane. The backlight module includes the optical membrane. The display device includes the backlight module. The device for manufacturing the optical membrane with a wave-shaped edge includes: a cutter, configured to cut an edge of the optical membrane; and linear members, arranged between two parallel blades of the cutter and configured to press the edge of the optical membrane into a wave shape. Alternatively, the device for manufacturing the optical membrane with a wave-shaped edge includes: a cutter, configured to cut an edge of the optical membrane; and a roller, configured to press the edge of the optical membrane into a wave shape.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: March 12, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE MULTIMEDIA TECHNOLOGY CO., LTD.
    Inventors: Zhishuai Jia, Donglei Li, Huijun Li
  • Publication number: 20190049654
    Abstract: The embodiments of the present disclosure provide a backlight module and a display device, which increase the brightness range of the lateral entrance backlight module, thereby improving the HDR display effect of the display device. The backlight module in the embodiment of the present disclosure includes at least two lateral entrance light guide plates, each lateral entrance light guide plate is provided with a light bar. The number of light bars of the backlight module is increased, thereby increasing the maximum brightness of the backlight module. The overall brightness variation range of the backlight module is thus increased. In addition, the light bar of each lateral entrance light guide plate can be separately controlled, thereby increasing the brightness range of the backlight module. Therefore, the backlight module provided by this solution can effectively improve the HDR display effect of the display device.
    Type: Application
    Filed: August 21, 2017
    Publication date: February 14, 2019
    Inventors: Jinku LV, Yutao HAO, Ying CHEN, Jian LI, Donglei LI, Bochang WANG, Zhanchang BU
  • Patent number: 9977178
    Abstract: The present disclosure provides a backlight source and a display device. A rigid element is arranged between a light strip of the backlight source and a light-entering surface of a light guide plate. One end of the rigid element is fixed onto the light strip, and the other end of the right element is fixed onto the light guide plate, so as to maintain a constant distance between the light strip and the light-entering surface of the light guide plate. An elastic element is arranged between the light strip and a back plate and at a side of the light strip opposite to the light-entering surface of the light guide plate. When the light guide plate is thermally deformed, a deformation force generated by the light guide plate is applied to the rigid element, so push the light strip to press against the elastic element.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: May 22, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE MULTIMEDIA TECHNOLOGY CO., LTD.
    Inventors: Donglei Li, Zhishuai Jia
  • Publication number: 20170059772
    Abstract: The present disclosure provides an optical membrane, a backlight module, a display device and a device for manufacturing the optical membrane. The optical membrane includes a strip-like strengthening member arranged on at least one edge of the optical membrane. The backlight module includes the optical membrane. The display device includes the backlight module. The device for manufacturing the optical membrane with a wave-shaped edge includes: a cutter, configured to cut an edge of the optical membrane; and linear members, arranged between two parallel blades of the cutter and configured to press the edge of the optical membrane into a wave shape. Alternatively, the device for manufacturing the optical membrane with a wave-shaped edge includes: a cutter, configured to cut an edge of the optical membrane; and a roller, configured to press the edge of the optical membrane into a wave shape.
    Type: Application
    Filed: August 6, 2015
    Publication date: March 2, 2017
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE MULTIMEDIA TECHNOLOGY CO., LTD.
    Inventors: Zhishuai JIA, Donglei LI, Huijun LI