Patents by Inventor Zhifu Li

Zhifu 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: 12038663
    Abstract: A phase-shift unit includes: a first substrate and a second substrate provided opposite to each other; a medium layer provided between the first substrate and the second substrate; a microstrip line disposed at a side of the second substrate facing towards the first substrate; and a grounding layer provided at a side of the first substrate facing towards the second substrate and formed with a via hole; wherein a projection of the via hole onto the second substrate and a projection of the microstrip line onto the second substrate have an overlapped area therebetween; and wherein the via hole is configured to feed a phase-shifted microwave signal out of the phase-shift unit, or feed a microwave signal into the phase-shift unit such that the microwave signal is phase-shifted.
    Type: Grant
    Filed: March 14, 2023
    Date of Patent: July 16, 2024
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xue Cao, Junhui Wu, Ying Wang, Peizhi Cai, Zhifu Li, Lijun Mao, Jiaheng Wang
  • Publication number: 20240234576
    Abstract: The present application provides a thin-film transistor having a vertical structure and an electronic device. In the thin-film transistor having the vertical structure, the thin-film transistor includes a first doped portion and a second portion, the second doped portion is connected to and partly in contact with a channel portion through a via hole by arranging the second doped portion in the via hole of an insulating layer, which can reduce a contact area between the second doped portion and the channel portion, thereby reducing ions diffusing into a channel region and improving device stability of the thin-film transistor. Also, in the thin-film transistor having the vertical structure, a projection area of the thin-film transistor can be reduced, improving an aperture ratio of a display panel.
    Type: Application
    Filed: November 4, 2022
    Publication date: July 11, 2024
    Inventors: Zhifu LI, Guanghui LIU, Fei AI, Dewei SONG, Chengzhi LUO
  • Publication number: 20240233587
    Abstract: The present disclosure provides a display device. The display device includes a rotating light bar and a driving unit. The driving unit is connected to a center point of the rotating light bar, and the rotating light bar is configured to rotate with the center point of the rotating light bar as an axis. The rotating light bar includes light emitting device groups arranged along a width direction of the rotating light bar, each of the light emitting device groups includes light emitting devices arranged along a length direction of the rotating light bar, and the light emitting devices in two adjacent ones of the light emitting device groups are staggered in the length direction of the rotating light bar.
    Type: Application
    Filed: November 9, 2022
    Publication date: July 11, 2024
    Inventors: Yunni CHEN, Fancheng LIU, Guowei ZHA, Zhifu LI
  • Publication number: 20240236291
    Abstract: The present disclosure provides a method and apparatus for displaying a multi-viewpoint video, a displaying device, a medium and a program, which relates to the technical field of displaying. The method includes: acquiring different viewpoint-position combinations of at least two users located within a visible area of a screen; from a predetermined multi-viewpoint-image set, screening out multi-viewpoint images corresponding to each of viewpoint-position combinations; regarding visible viewpoint images of at least the corresponding viewpoint-position combinations among the multi-viewpoint images as target viewpoint images; combining the target viewpoint images of at least two viewpoint-position combinations as video frames, to obtain the multi-viewpoint video; and displaying the multi-viewpoint video by using the screen.
    Type: Application
    Filed: December 29, 2021
    Publication date: July 11, 2024
    Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhifu Li, Jinghua Miao, Mingyang Yan, Wenyu Li
  • Publication number: 20240234577
    Abstract: A semiconductor device and an electronic device are provided. A through hole is formed in an insulating layer and located on a first active layer. A thin-film transistor layer includes a third active layer. At least part of the third active layer is located on a sidewall of the through hole. One side of the third active layer is connected to a first active layer, and the other side of the third active layer is connected to a second active layer, so that a channel length is reduced, short channel effect is reduced, on-state current is increased, and power consumption is reduced.
    Type: Application
    Filed: November 11, 2022
    Publication date: July 11, 2024
    Applicant: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Zhifu LI, Guanghui LIU, Chao DAI, Fei AI, Dewei SONG, Chengzhi LUO
  • Publication number: 20240222379
    Abstract: Embodiments of the present disclosure provide an array substrate and a display panel. The array substrate includes a first active layer, a gate electrode, a gate insulating layer, a second active layer, and a source/drain metal layer. The first active layer is connected in parallel with the second active layer through a conductor layer. Through an active layer structure with two layers in parallel, an on-state current and mobility of equivalent carriers of a device are effectively improved, and a comprehensive performance of the device is improved.
    Type: Application
    Filed: November 7, 2022
    Publication date: July 4, 2024
    Inventors: Zhifu LI, Guanghui LIU, Fei Al, Dewei Song
  • Publication number: 20240204011
    Abstract: A semiconductor device, a sensor device, and an electronic device are provided. The semiconductor device includes a first integrated circuit (IC) and a second IC which are disposed on an insulating substrate. The first IC includes a first thin-film transistor (TFT). The second IC includes a second TFT. Mobility of the first TFT is greater than mobility of the second TFT. The ICs are disposed on the insulating substrate, thereby reducing manufacturing cost.
    Type: Application
    Filed: August 17, 2022
    Publication date: June 20, 2024
    Applicant: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Zhifu Li, Guanghui Liu, Guowei Zha, Zhou Zhang, Xialing Liu
  • Publication number: 20240194792
    Abstract: The present application provides a thin film transistor substrate and an electronic device. The thin film transistor substrate includes: a substrate; a boss including an undercut structure, the undercut structure is located on a side wall of the boss; a filler located in the undercut structure; and an active layer located on the boss and the substrate, the active layer includes a channel, and the channel covers the undercut structure and the filler.
    Type: Application
    Filed: December 22, 2022
    Publication date: June 13, 2024
    Applicant: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Zhifu LI, Guanghui LIU, Fei AI, Dewei SONG, Zhuang LI
  • Publication number: 20240194684
    Abstract: A semiconductor device and an electronic device are provided. The semiconductor device includes an insulating substrate and a thin film transistor layer. The thin film transistor layer includes a first active layer and a first insulating layer disposed on the first active layer, and a convex portion is formed on the first insulating layer. The thin film transistor layer further includes a second active layer and a third active layer disposed on both sidewalls and an upper surface of the convex portion, one end of the first active layer is connected to the second active layer, and another end of the first active layer is connected to the third active layer.
    Type: Application
    Filed: August 8, 2022
    Publication date: June 13, 2024
    Applicant: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Zhifu LI, Guanghui LIU, Fei AI, Dewei SONG
  • Patent number: 11982829
    Abstract: A backlight module and a display panel are provided. The display panel includes a display panel main body and a backlight module. The backlight module includes a light guide, a first reflector, and a light source. By arranging the light source in a receiving cavity of the light guide, a width of a lamp socket of the backlight module is reduced, and a light effect of the lamp socket of the backlight module is improved.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: May 14, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Dong Tian, Gege Zhou, Wei Zhou, Jianfeng Yuan, Zhifu Li
  • Publication number: 20240135843
    Abstract: The present disclosure provides a display device. The display device includes a rotating light bar and a driving unit. The driving unit is connected to a center point of the rotating light bar, and the rotating light bar is configured to rotate with the center point of the rotating light bar as an axis. The rotating light bar includes light emitting device groups arranged along a width direction of the rotating light bar, each of the light emitting device groups includes light emitting devices arranged along a length direction of the rotating light bar, and the light emitting devices in two adjacent ones of the light emitting device groups are staggered in the length direction of the rotating light bar.
    Type: Application
    Filed: November 9, 2022
    Publication date: April 25, 2024
    Inventors: Yunni CHEN, Fancheng LIU, Guowei ZHA, Zhifu LI
  • Publication number: 20240046877
    Abstract: The embodiment of the present application discloses a display device, a display system and a distributed function system. The initial pixel driving data corresponding to the image to be displayed, which is received, is segmented into a plurality of pixel driving data blocks by the management chip. With the display screen comprising a plurality of display modules, and the pixel driving data blocks are written to the driving circuits of the corresponding display modules through the data connection lines based on control signals. The driving circuit is employed to drive pixels in the display module to work according to the pixel driving data block, which is received to meet the display requirements of full HD and resolutions above full HD.
    Type: Application
    Filed: December 24, 2021
    Publication date: February 8, 2024
    Applicant: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Changwen MA, Guowei ZHA, Guanghui LIU, Zhifu LI, Xiaolin YAN, Wanliang FENG
  • Publication number: 20240046891
    Abstract: An image display method is provided. The method includes: in response to receiving an Nth frame synchronization signal, acquiring an (N+1)th frame image to be displayed and pixel data of pixels in the (N+1)th frame image to be displayed (S12); calculating backlight brightness data of a display screen according to the pixel data by a backlight algorithm (S14); in response to receiving an (N+1)th frame synchronization signal, synchronously sending the (N+1)th frame image to be displayed and the backlight brightness data to the display screen and a backlight driving board respectively (S16). In addition, the present application further discloses an image processing apparatus, an electronic device and a storage medium.
    Type: Application
    Filed: December 25, 2020
    Publication date: February 8, 2024
    Inventors: Zhifu LI, Jinghua MIAO, Wenyu LI, Mingyang YAN
  • Publication number: 20240036247
    Abstract: A backlight module and a display panel are provided. The display panel includes a main body and a backlight module. The backlight module includes a light source and a light guide plate. By accommodating a light-emitting chip of the light source into a groove of the light guide plate, misalignment of the light source and the light guide plate is prevented so that a relative positional relationship between the light source and the light guide plate is always consistent, thereby improving the consistency and stability of the light effect of a lamp port of the backlight module.
    Type: Application
    Filed: January 21, 2022
    Publication date: February 1, 2024
    Applicant: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Dong Tian, Gege Zhou, Wei Zhou, Jianfeng Yuan, Zhifu Li
  • Publication number: 20240038745
    Abstract: A display device is provided and includes: a plurality of display modules disposed on the first bearing surface, each of the display modules including a plurality of display units; a plurality of first functional elements located on the first bearing surface, and each of the first functional elements disposed between any two of the display units; and a plurality of second functional elements located on the second bearing surface; wherein a function of each of the second functional elements is the same as a function of each of the first functional elements, and processing capability of each of the second functional elements is different from processing capability of each of the first functional elements.
    Type: Application
    Filed: September 17, 2021
    Publication date: February 1, 2024
    Applicant: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Zhou ZHANG, Guowei ZHA, Guanghui LIU, Zhifu LI, Xiaolin YAN, Wanliang FENG
  • Publication number: 20240038900
    Abstract: A thin-film transistor (TFT) having a vertical structure and an electronic device are provided. The TFT having the vertical structure includes an insulating substrate and an active layer disposed on the insulating substrate. The active layer includes a first conductive part, an active section, and a second conductive part which are stacked. An orthographic projection of the first conductive part on the insulating substrate partly overlaps an orthographic projection of the second conductive part on the insulating substrate. Therefore, contamination ions may be prevented from entering the active section from the insulating substrate during manufacturing processes of the TFT. Thus, reliability of performance of the TFT may be improved.
    Type: Application
    Filed: October 28, 2022
    Publication date: February 1, 2024
    Applicant: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Zhifu Li, Guanghui Liu, Fei Ai, Dewei Song, Chengzhi Luo
  • Publication number: 20240036795
    Abstract: The present application provides a distributed system on panel (SOP) display panel and a display system. The distributed SOP display panel includes a plurality of display modules and a plurality of functional modules. Each display module includes a plurality of display units. The functional modules include first functional modules and a second functional module. The first functional modules are electrically connected to the display units in adjacent display modules, the second functional module is electrically connected to the plurality of display modules, in order to alleviate a technical problem of improper layout of system functions of a conventional SOP display device.
    Type: Application
    Filed: December 9, 2021
    Publication date: February 1, 2024
    Applicant: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Zemin Hu, Guowei Zha, Guanghui Liu, Zhifu Li, Xiaolin Yan, Wanliang Feng
  • Publication number: 20240038895
    Abstract: A semiconductor device and an electronic device are provided. The semiconductor device includes an insulating substrate, and a non-planar layer disposed on the insulating substrate and including a non-planar structure. The non-planar structure includes a sidewall. An active pattern is configured with at least a part located on the sidewall of the non-planar structure. The active pattern includes a channel located on the sidewall. A ratio of a size of the non-planar structure in a thickness direction of the non-planar layer to a thickness of the active pattern is less than or equal to seven.
    Type: Application
    Filed: October 28, 2022
    Publication date: February 1, 2024
    Applicant: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Zhifu Li, Guanghui Liu, Fei Ai, Dewei Song
  • Publication number: 20240005829
    Abstract: A gate driving circuit and a display panel are disclosed. A pull-up control module and a pull-down module of each stage gate driving unit are connected to a first node. A thin film transistor in the pull-up control module and/or pull-down module that is connected to the first node is an oxide thin film transistor, such that a leakage current of the first node is reduced due to the advantage of the small off-state leakage current of the oxide thin film transistor. Therefore, the voltage level of the first node can remain stable during a pull-up stage and a touch suspension stage.
    Type: Application
    Filed: October 29, 2021
    Publication date: January 4, 2024
    Applicant: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Haiming CAO, Yanqing GUAN, Chao TIAN, Fei AI, Guanghui LIU, Zhifu LI
  • Publication number: 20230395007
    Abstract: The present application provides a display device, a display system, and a distributed functional system. The display device includes display modules and first functional units. Each of the display modules is configured to receive a corresponding display signal, each of the display modules includes display units, and a parameter of each of the display signals is less than or equal to a peak processing capability of the corresponding display module. Each of the first functional units is arranged between adjacent ones of the display units.
    Type: Application
    Filed: December 29, 2020
    Publication date: December 7, 2023
    Applicant: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Zhou Zhang, Zhifu Li, Guowei Zha, Guanghui Liu