Patents by Inventor Bochang Wang

Bochang Wang 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: 11531240
    Abstract: The present disclosure discloses a folding screen display device, and the folding screen display device includes: a main cell and a sub cell arranged in a stacked mode; a backlight module arranged on a side, facing away from the main cell, of the sub cell; a display control circuit board arranged on a side, facing away from the sub cell, of the backlight module; and a cable pinboard arranged on a side frame of the backlight module; where the display control circuit board has a timer control circuit for outputting a timer control signal to the main cell and the sub cell; the timer control circuit is electrically connected with the main cell through a first COF; the timer control circuit is electrically connected with the cable pinboard; and the cable pinboard is electrically connected with the sub cell through a second COF.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: December 20, 2022
    Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yu Zhang, Zhuolong Li, Guangyun Tong, Bochang Wang, Zhanchang Bu
  • Publication number: 20220365395
    Abstract: Disclosed are a curved backlight module and a display device. The curved backlight module includes: an optical film and a lamp board which are oppositely provided, the distance between the optical film and the lamp board being referred to as an optical cavity height; the lamp board is provided with a plurality of lamp bars which extend in a first direction and are arranged in a second direction, a plurality of lamp beads distributed in an array are provided on each of the lamp bars, and the distribution parameters of the lamp beads on each of the lamp bars are the same; and on each of the lamp bars, there is a first distance between two adjacent lamp beads in the first direction, and there is a second distance between two adjacent lamp beads in the second direction.
    Type: Application
    Filed: May 12, 2021
    Publication date: November 17, 2022
    Inventors: Yu ZHANG, Huiyan LI, Lijin ZHAO, Shixin GENG, Bochang WANG
  • Publication number: 20220357504
    Abstract: The present disclosure provides a display panel, a method for manufacturing a display panel and a display device. The display panel includes a back frame, a backlight module and a panel, where the backlight module and the panel are arranged in the back frame, the back frame includes a back plate, and the back plate is provided with a hollow-out area. The backlight module is arranged between the back plate and the panel and includes a light transmissive area and a light emitting area, and the light transmissive area corresponds to the hollow-out area. The panel is arranged on a side of the backlight module away from the back plate, and includes a display area and a transparent area, where the display area corresponds to the light emitting area, and the transparent area corresponds to the light transmissive area.
    Type: Application
    Filed: February 2, 2021
    Publication date: November 10, 2022
    Inventors: Xuefei QIN, Guangyun TONG, Yu ZHANG, Bochang WANG
  • Publication number: 20220351695
    Abstract: Provided is a display method applicable to a display device, the display device including a liquid crystal light control panel and a liquid crystal display (LCD) panel stacked together, the method including: acquiring a first sub-image and a second sub-image of an image to be displayed on the LCD panel, a boundary of the first sub-image being in contact with a boundary of the second sub-image; and decreasing a grayscale value of a first region, which is in contact with a boundary of a second light control region, in a first light control region, in response to determining that a grayscale value of the second sub-image is greater than a grayscale threshold.
    Type: Application
    Filed: November 12, 2020
    Publication date: November 3, 2022
    Inventors: Guangyun Tong, Zhuolong Li, Yu Zhang, Bochang Wang
  • Patent number: 11467443
    Abstract: The present application discloses a polarizer and a preparation method thereof and a display device. Embodiments of the present disclosure provides a polarizer, wherein the polarizer includes: a polarizing layer, and a depolarizing layer located on a light emitting side of the polarizing layer; the depolarizing layer includes: nanoparticles, and a reflective part covering the nanoparticles; and the reflective part covering the nanoparticles generates resonance scattering with incident light.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: October 11, 2022
    Assignees: Beijing BOE Display Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventors: Yu Zhang, Guangyun Tong, Zhuolong Li, Mingzhe Ye, Bochang Wang
  • Publication number: 20220299702
    Abstract: A backlight unit includes: a back plate including a bottom wall and a side wall around a periphery of the bottom wall; a lamp strip including a substrate and lamp beads on the substrate; a light guide plate on a side of the bottom wall provided with the side wall, the lamp strip being on a first side wall of the side wall, and light emitting surfaces of the lamp beads being opposite to a side surface of the light guide plate; and a position limiting and fixing structure between the light guide plate and each of the back plate and the lamp strip, for limiting and fixing a position of the lamp strip relative to the light guide plate to keep a gap between the light emitting surfaces of the lamp beads and a light incident surface of the light guide plate unchanged during turn-over of the backlight unit.
    Type: Application
    Filed: December 20, 2021
    Publication date: September 22, 2022
    Inventors: Huiyan LI, Yu ZHANG, Bochang WANG, Fuxue LIANG, Shixin GENG
  • Publication number: 20220299812
    Abstract: Provided is a display module. The display module includes a first display panel including a first edge sealing region; a second display panel including a second edge sealing region, wherein the second display panel and the first display panel are disposed in a same layer and spliced with each other, and the second edge sealing region is abutted against the first edge sealing region; and a third display panel disposed on backlight sides of the first display panel and the second display panel, wherein both an orthographic projection of the first edge sealing region onto the third display panel and an orthographic projection of the second edge sealing region onto the third display panel fall within a display region of the third display panel; wherein the first display panel, the second display panel and the third display panel are all liquid-crystal display panels.
    Type: Application
    Filed: January 24, 2022
    Publication date: September 22, 2022
    Inventors: Bin WU, Zhaoshou TIAN, Enliang ZHANG, Haijun SHI, Bochang WANG, Dan LI
  • Publication number: 20220269127
    Abstract: A display panel, a touch display panel, and a display device are provided. The touch display panel includes a first polarizer, a liquid crystal cell, and a backlight assembly, wherein a pencil hardness of the first polarizer is not less than 3H and not greater than 9H; the first polarizer is arranged at a side of the liquid crystal cell distal to the backlight assembly.
    Type: Application
    Filed: November 15, 2021
    Publication date: August 25, 2022
    Inventors: Yu ZHANG, Miao LIU, Shixin GENG, Bochang WANG, Zhanchang BU
  • 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: 11402688
    Abstract: The present disclosure relates to an electronic apparatus, a display device, and a backlight module, and relates to relates to the field of display technologies. The backlight module includes a back panel, a light guide plate and a light bar. The back panel has a bottom plate and a peripheral plate surrounding edges of the bottom plate, the peripheral plate is provided with a limit structure protruding into an area surrounded by the peripheral plate; the light guide plate is provided within the peripheral plate; the light bar is provided between the peripheral plate and the light guide plate and abutting against the limit structure to be blocked by the limit structure in at least one of a direction perpendicular to the bottom plate and a circumferential direction of the peripheral plate.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: August 2, 2022
    Assignees: Beijing BOE Display Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD
    Inventors: Shixin Geng, Yu Zhang, Bochang Wang, Jiangfeng Zhang, Xu Chen
  • Publication number: 20220197078
    Abstract: A backlight assembly and a display device are provided. The backlight assembly includes a first sub-optical film including first edge portions and a supporting frame including a first supporting portion which includes rims. The rim includes a first positioning groove and second positioning grooves, the first edge portion includes a first positioning portion in the first positioning groove and second positioning portions in the second positioning grooves; a difference between sizes of the first positioning groove and the first positioning portion is a first space, a difference between a size of each second positioning groove and that of the second positioning portion is a second space greater than the first space; the first edge portions include a first sub-edge portion, the first positioning portion is located at a midpoint of the first sub-edge portion, and the second positioning portions are distributed on both sides of the first positioning portion.
    Type: Application
    Filed: March 9, 2022
    Publication date: June 23, 2022
    Inventors: Yu ZHANG, Huiyan LI, Shixin GENG, Bochang WANG
  • Publication number: 20220163835
    Abstract: The present disclosure discloses a folding screen display device, and the folding screen display device includes: a main cell and a sub cell arranged in a stacked mode; a backlight module arranged on a side, facing away from the main cell, of the sub cell; a display control circuit board arranged on a side, facing away from the sub cell, of the backlight module; and a cable pinboard arranged on a side frame of the backlight module; where the display control circuit board has a timer control circuit for outputting a timer control signal to the main cell and the sub cell; the timer control circuit is electrically connected with the main cell through a first COF; the timer control circuit is electrically connected with the cable pinboard; and the cable pinboard is electrically connected with the sub cell through a second COF.
    Type: Application
    Filed: June 24, 2021
    Publication date: May 26, 2022
    Inventors: Yu ZHANG, Zhuolong LI, Guangyun TONG, Bochang WANG, Zhanchang BU
  • Patent number: 11300819
    Abstract: A curved surface display device includes a display panel, a first middle frame located on a side of the display panel and configured to support the display panel, a backlight assembly located at a side of the first middle frame away from the display panel and having an optical film and a second middle frame, and a back plate located at a side of the backlight assembly away from the display panel. The back plate includes a bottom plate and a side plate disposed on an edge of the bottom plate; the second middle frame is located at a side of the optical film away from the display panel, and is connected to the bottom plate.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: April 12, 2022
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yu Zhang, Huiyan Li, Shixin Geng, Bochang Wang
  • Publication number: 20220100017
    Abstract: The present application discloses a polarizer and a preparation method thereof and a display device. Embodiments of the present disclosure provides a polarizer, wherein the polarizer includes: a polarizing layer, and a depolarizing layer located on a light emitting side of the polarizing layer; the depolarizing layer includes: nanoparticles, and a reflective part covering the nanoparticles; and the reflective part covering the nanoparticles generates resonance scattering with incident light.
    Type: Application
    Filed: April 14, 2021
    Publication date: March 31, 2022
    Inventors: Yu ZHANG, Guangyun Tong, Zhuolong Li, Mingzhe Ye, Bochang Wang
  • Publication number: 20220007524
    Abstract: The present disclosure provides a display panel. The display panel of the present disclosure includes: a front frame and a printed circuit board protective shell. The front frame includes a first front frame portion and a second front frame portion extending in a length direction of the display panel; and a third front frame portion and a fourth front frame portion extending in a width direction of the display panel; wherein the first front frame portion and the second front frame portion are disposed oppositely; and the third front frame portion and the fourth front frame portion are disposed oppositely, and connected between the first front frame portion and the second front frame portion. The printed circuit board protective shell is engaged with the first front frame portion and the second front frame portion to form an integral structure.
    Type: Application
    Filed: July 23, 2019
    Publication date: January 6, 2022
    Inventors: Jiangfeng ZHANG, Xu CHEN, Yu ZHANG, Bochang WANG, Shixin GENG
  • Publication number: 20210373384
    Abstract: The present disclosure relates to an electronic apparatus, a display device, and a backlight module, and relates to relates to the field of display technologies. The backlight module includes a back panel, a light guide plate and a light bar. The back panel has a bottom plate and a peripheral plate surrounding edges of the bottom plate, the peripheral plate is provided with a limit structure protruding into an area surrounded by the peripheral plate; the light guide plate is provided within the peripheral plate; the light bar is provided between the peripheral plate and the light guide plate and abutting against the limit structure to be blocked by the limit structure in at least one of a direction perpendicular to the bottom plate and a circumferential direction of the peripheral plate.
    Type: Application
    Filed: November 20, 2019
    Publication date: December 2, 2021
    Inventors: Shixin GENG, Yu ZHANG, Bochang WANG, Jiangfeng ZHANG, Xu CHEN
  • Patent number: 11112650
    Abstract: Disclosed are a backlight module and a display device. The backlight module includes a substrate; a first circuit board and a second circuit board thereon, a gap portion is between the two circuit boards; a blocking member for blocking the gap portion; and an optical sheet on a side of the blocking member facing away from the substrate, wherein the blocking member includes a blocking portion, a space is provided between the blocking portion and the optical sheet, an orthographic projection of the blocking portion on the substrate covers that of the gap portion, and wherein the blocking portion includes a first inclined surface inclined with respect to the first circuit board and a second inclined surface inclined with respect to the second circuit board, and the two inclined surface converge in a direction toward a light exit side to reflect light incident thereon toward the light exit side.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: September 7, 2021
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hongli Zhu, Lili Jia, Bochang Wang, Haiwei Sun
  • Publication number: 20210191184
    Abstract: A curved surface display device, a vehicle and a backlight assembly are provided. The curved surface display device includes a display panel, a first middle frame, a backlight assembly and a back plate. The first middle frame is located on a non-display side of the display panel and configured to support the display panel; the backlight assembly is located at a side of the first middle frame away from the display panel and includes an optical film and a second middle frame, the second middle frame is located at a side of the optical film away from the display panel; the back plate is located at a side of the backlight assembly away from the display panel. The back plate includes a bottom plate and a side plate disposed on an edge of the bottom plate, and the second middle frame is connected to the bottom plate.
    Type: Application
    Filed: September 29, 2020
    Publication date: June 24, 2021
    Inventors: Yu ZHANG, Huiyan LI, Shixin GENG, Bochang WANG
  • Publication number: 20210124216
    Abstract: Disclosed are a backlight module and a display device. The backlight module includes a substrate; a first circuit board and a second circuit board thereon, a gap portion is between the two circuit boards; a blocking member for blocking the gap portion; and an optical sheet on a side of the blocking member facing away from the substrate, wherein the blocking member includes a blocking portion, a space is provided between the blocking portion and the optical sheet, an orthographic projection of the blocking portion on the substrate covers that of the gap portion, and wherein the blocking portion includes a first inclined surface inclined with respect to the first circuit board and a second inclined surface inclined with respect to the second circuit board, and the two inclined surface converge in a direction toward a light exit side to reflect light incident thereon toward the light exit side.
    Type: Application
    Filed: November 25, 2019
    Publication date: April 29, 2021
    Inventors: Hongli Zhu, Lili Jia, Bochang Wang, Haiwei Sun
  • 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