Patents Assigned to SHANGHAI TIANMA MICRO-ELECTRONIC CO., LTD.
  • Publication number: 20240147782
    Abstract: A display panel includes a substrate and a first display region. The first display region includes: a light transmission region, a first blocking portion located at a side of the substrate, a second blocking portion located at a side of the first blocking portion away from the substrate, and a first conductive layer located at a side of the second blocking portion away from the first blocking portion. The first conductive layer includes a first hollowed portion and a first non-hollowed portion. The first hollowed portion is located in the light transmission region. Along a first direction, the first blocking portion at least partially overlaps with the second blocking portion, and an overlapping location between the first blocking portion and the second blocking portion at least partially overlaps with the first non-hollowed portion. The first direction is perpendicular to a plane of the substrate.
    Type: Application
    Filed: January 8, 2024
    Publication date: May 2, 2024
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventor: Quanpeng YU
  • Publication number: 20240142821
    Abstract: The present disclosure relates a backlight module and a display device to improve surface uniformity of the backlight module. The backlight module includes: a first region and a second region surrounding the first region; a backplate; a light source located at a side of the backplate pointing to a light exiting direction of the backlight module and also located in the first region; and a first structure located at a side of the light source away from the backplate, where the first structure includes scattering dots; where the scattering dots are located in the first region and the second region, and within a unit projected area, an area of orthographic projection of the scattering dots in the first region is smaller than an area of orthographic projection of the scattering dots in the second region, or the scattering dots are located in the second region.
    Type: Application
    Filed: January 10, 2024
    Publication date: May 2, 2024
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Chunfeng LIU, Ronghua LI
  • Publication number: 20240144891
    Abstract: Provided are a driver board, a display panel, and a display apparatus. The driver board includes a driver circuit. The driver circuit includes N pixel electrodes, N pixel switches, a data switch, and a storage capacitor, N is a positive integer, and N?2. The storage capacitor includes a reference electrode and a counter electrode. A control terminal of the pixel switch receives a gating signal, a first terminal of the pixel switch is connected to the counter electrode, and a second terminal of the pixel switch is connected to the pixel electrode. The driver board further includes data lines, and each data line is connected to the counter electrode via the data switch.
    Type: Application
    Filed: January 9, 2024
    Publication date: May 2, 2024
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Haotian LU, Linzhi WANG, Baiquan LIN, Zhen LIU, Kerui XI, Kaidi ZHANG, Yifan XING, Xin XU, Huijun JIN
  • Publication number: 20240142845
    Abstract: A display panel and a display device are provided. The display panel includes a first substrate, a second substrate arranged opposite to the first substrate, an electrophoresis layer, a liquid-blocking portion and a supporting structure. The electrophoresis layer is arranged between the first substrate and the second substrate and includes multiple electrophoresis particles. The liquid-blocking portion is arranged at an edge of the first substrate and/or the second substrate. The supporting structure is arranged between the first substrate and the second substrate and includes a first supporting portion and a second supporting portion. A height of the first supporting portion is greater than that of the second supporting portion in a direction perpendicular to a plane where the first substrate is located. A minimum distance between the second supporting portion and the liquid-blocking portion is less than that between the first supporting portion and the liquid-blocking portion.
    Type: Application
    Filed: January 9, 2024
    Publication date: May 2, 2024
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Kaikai ZHANG, Yongxin HE, Yuan DING, Jujian FU
  • Publication number: 20240134105
    Abstract: Provided are a light guide plate assembly, a backlight module, and a display device, which relate to the field of display technologies, and improve uniformity of the light intensity of light emitted from different areas in the light guide plate assembly. The light guide plate assembly includes a reflection portion having an aperture; and a transmission portion. At least part of the transmission portion is located in the aperture. The transmission portion includes a converging portion and a diverging portion. A curvature of a surface of the converging portion adjacent to a light-incoming side of the light guide plate assembly is greater than or equal to 0, and a curvature of a surface of the diverging portion adjacent to the light-incoming side of the light guide plate assembly is smaller than or equal to 0.
    Type: Application
    Filed: December 6, 2023
    Publication date: April 25, 2024
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Zhanxiang GUO, Yumin XU, Binbin CHANG, Zhaoxing GAO, Wanzhen WANG, Weiyang SUN, Jianguo BIAN
  • Patent number: 11966514
    Abstract: A tactile presentation device includes a panel, a first supporting member that secures and supports a first end of the panel, a vibration generator disposed at a position facing the first supporting member across a target area to be touched by a user on the panel, and a driving control device that provides the vibration generator with a driving signal. The driving control device makes only the vibration generator vibrate to form a standing wave in an area including the target area between the vibration generator and the first end. A first vibration reflection rate at the first end for a carrier wave from the vibration generator is negative. A second vibration reflection rate for the carrier wave from the vibration generator at a second end of the panel that is opposing to the first end across the vibration generator is greater than the first vibration reflection rate.
    Type: Grant
    Filed: November 21, 2022
    Date of Patent: April 23, 2024
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Shin Takeuchi, Hiroshi Haga
  • Patent number: 11961483
    Abstract: A display panel includes at least one pixel circuit and a light emitting element. One pixel circuit includes a driving transistor, and second and third transistors. The second transistor is connected between data line and a source of the driving transistor. The third transistor is connected between voltage adjusting signal line and the source. During a data writing phase, the second transistor is turned on, the data line provides data signal equal to VData to the source, a gate of the driving transistor receives the data signal, and voltage of the gate is VData+Vth. Vth denotes threshold voltage of the driving transistor. During a reset and adjustment phase, the third transistor is turned on, the voltage adjusting signal line provides adjusting voltage to the source, voltage of the source of the driving transistor is VJ, and the voltage of the gate remains VData+Vth. VData+Vth?VJ??2V.
    Type: Grant
    Filed: April 27, 2023
    Date of Patent: April 16, 2024
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Nana Xiong, Jujian Fu
  • Patent number: 11961949
    Abstract: Provided are a light emitting device and manufacturing method thereof, a backlight module, a display panel and a display device. The manufacturing method includes: providing a substrate; forming a circuit layer on a side of the substrate; providing at least one switching element and at least one light emitting element; and electrically connecting the switching element and the light emitting element to the circuit layer. The circuit layer includes a first power signal line, a second power signal line, and a pulse width modulation signal line; the switching element includes a control terminal, a first terminal and a second terminal; the light emitting element is electrically connected between the first terminal and the first power signal line, or the light emitting element is electrically connected between the second terminal and the second power signal line.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: April 16, 2024
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Lihua Wang, Xiaoping Sun, Conghua Ma, Qiang Dong
  • Patent number: 11963323
    Abstract: Provided are a display device and a method for controlling the same. The display device includes a flexible display screen and a control structure configured to control the flexible display screen to assume a folded state or an unfolded state. The control structure includes a guide rail assembly including guide rails. Two adjacent guide rails of the guide rails are slidably connected to each other, and the flexible display screen is unfolded along a first direction and folded along a second direction. A sliding direction of each of the guide rails is the same as the first direction or the second direction.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: April 16, 2024
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventor: Xiaoyin Zhang
  • Patent number: 11955058
    Abstract: A display panel, a display device and a method for driving a display panel are provided. The display panel includes N types of display areas which includes an i-th type display area and a j-th type display area. The display panel includes M display parts which include a first display part and a second display part. The first display part includes at least one i-th type display area, and the second display part includes at least one i-th type display area. At least one j-th type display area is arranged between the i-th type display area included in the first display part and the i-th type display area included in the second display part. Light-emitting time periods of the i-th type display area and the j-th type display area at least partially do not overlap, to reduce the number of sub-pixels driven at the same time period.
    Type: Grant
    Filed: March 24, 2022
    Date of Patent: April 9, 2024
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Yingteng Zhai, Yuan Ding
  • Patent number: 11953784
    Abstract: A light guide plate assembly, a backlight module, and a display device are provided. The light guide plate assembly is configured to guide exiting light emitted from a light-emitting element. The light guide plate assembly includes a reflective part includes an opening, and a transmissive part. At least a part of the transmissive part is located at a side of the reflective part adjacent to a light-exiting side of the light guide plate assembly. The transmissive part includes a first part. Along a direction from a center of the opening to an edge of the opening, light intensity of the exiting light received by the first part is negatively correlated to light transmittance of the first part.
    Type: Grant
    Filed: April 25, 2023
    Date of Patent: April 9, 2024
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Zhanxiang Guo, Yumin Xu, Jianguo Bian, Jiantao Ren, Binbin Chang, Zhaoxing Gao, Weiyang Sun, Wanzhen Wang
  • Patent number: 11941201
    Abstract: A display panel and a display device are provided. The display panel includes: at least one first touch line and at least one second touch line that are located in different layers; and a first dielectric layer located between the at least one first touch line and the at least one second touch line. The display panel has a first region and a second region, in the second region, one of the at least one first touch line is electrically connected to one of the at least one second touch line by passing the first dielectric layer. A thickness A of the first dielectric layer in the first region in a direction perpendicular to a plane of the display panel, and a thickness B of the first dielectric layer in the second region in the direction perpendicular to the plane of the display panel satisfy: A>B?0.
    Type: Grant
    Filed: June 2, 2022
    Date of Patent: March 26, 2024
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Zhe Li, Feng Lu
  • Patent number: 11942047
    Abstract: A display panel and a display device are provided. One pixel circuit of the display panel includes a driving transistor, a second transistor, a third transistor, a reset module, and a first light-emission controlling module. The second transistor is connected between a data line and a source of the driving transistor, the third transistor is connected between a voltage adjusting signal line and the source of the driving transistor, the reset module is connected between a reset voltage input terminal and a gate of the driving transistor, and the first light-emission controlling module is connected between a first power supply terminal and the source of the driving transistor. An operation process of the display panel includes a light emitting phase, a data writing phase, a reset and adjustment phase, and a reset phase.
    Type: Grant
    Filed: April 27, 2023
    Date of Patent: March 26, 2024
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Nana Xiong, Jujian Fu
  • Patent number: 11940530
    Abstract: Provided are an ultrasonic fingerprint identification circuit, a driving method thereof, and a display device. The ultrasonic fingerprint identification circuit comprises fingerprint identification units each including an ultrasonic fingerprint identification sensor connected to a first node; a control module connected to a composite signal line, a first control signal line and the first node and configured to provide a reset potential to the first node and to provide a pull-up potential to the first node in response to a first level provided by the composite signal line; a reading module connected to a second control signal line, the first node and a reading signal line, and configured to read a detection signal of the first node. The first control signal line connected to one fingerprint identification unit is reused as the second control signal line connected to another fingerprint identification unit.
    Type: Grant
    Filed: January 5, 2023
    Date of Patent: March 26, 2024
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Lu Lian, Feng Lu, Haochi Yu
  • Patent number: 11929313
    Abstract: A chip package structure, manufacturing method thereof, and module are described. In an embodiment, the chip package structure includes: a substrate, a wiring layer, a chip, and a second conductive bump, wherein, in an embodiment, the substrate includes a first region and a second region surrounding the first region, and the wiring layer is located on side of the substrate and includes metal wire, wherein at least part of a metal wire is in contact with the substrate in direction perpendicular to the substrate, and the metal wire overlaps with the second region, wherein the chip is located on side of the wiring layer facing away from the substrate, and the chip corresponds to the first region. In an embodiment, a first conductive bump is provided on side of the chip facing away from the substrate and is electrically connected to the metal wire.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: March 12, 2024
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Mingyu Wang, Kerui Xi, Xuhui Peng, Feng Qin, Jie Zhang
  • Publication number: 20240077916
    Abstract: A foldable apparatus for supporting a flexible display screen includes a spindle assembly and two rotating components. At least one of the two rotating components is a first rotating component that includes a middle frame, a rotating holder, and a transmission structure. The rotating holder is rotatably connected to the spindle assembly. The middle frame is located at a side of the rotating holder away from the spindle assembly. The middle frame and the rotating holder is configured to slide in parallel. The transmission structure has one end connected to the spindle assembly and another end connected to the middle frame. The middle frame is configured to adhere to the flexible display screen. When the first rotating component rotates relative to the spindle assembly, the transmission structure moves relative to the rotating holder and drives the middle frame to slide in parallel relative to the rotating holder.
    Type: Application
    Filed: October 23, 2023
    Publication date: March 7, 2024
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Haoyang XIA, Tianqi HUANG, Renhao PAN
  • Patent number: 11915638
    Abstract: A display panel and a display device are provided. The display panel includes a pixel circuit and a light-emitting element. The pixel circuit includes a data-writing module, a driving module, and a compensation module. The data-writing module is configured to selectively provide a data signal for the driving module. The driving module includes a driving transistor and is configured to provide a driving current to the light-emitting element. The compensation module is configured to compensate a threshold voltage of the driving transistor. A source of the driving transistor includes a first source and a second source, and a drain of the driving transistor includes a first drain and a second drain. A third driving portion is arranged between the first source and the second source. A first driving portion is arranged between the second source and the first drain.
    Type: Grant
    Filed: February 7, 2023
    Date of Patent: February 27, 2024
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventor: Yong Yuan
  • Patent number: 11916297
    Abstract: A liquid crystal antenna and a method for forming a liquid crystal antenna are provided. The liquid crystal antenna includes a first substrate; a second substrate opposite to the first substrate; and a liquid crystal layer disposed between the first substrate and the second substrate. A first conductive layer is disposed on a side of the first substrate facing toward the second substrate; a second conductive layer is disposed on a side of the second substrate facing toward the first substrate; the second conductive layer at least includes a plurality of radiation electrodes; an external metal layer is disposed on a side of the first substrate facing away from the liquid crystal layer; and the external metal layer is connected to a fixed potential.
    Type: Grant
    Filed: February 9, 2022
    Date of Patent: February 27, 2024
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Zhenyu Jia, Kerui Xi, Baiquan Lin, Xiaonan Han, Zuocai Yang, Donghua Wang, Yukun Huang, Feng Qin
  • Patent number: 11907491
    Abstract: A sensing unit and a sensing device are provided. The sensing unit includes a substrate; a plurality of thin-film transistors and a plurality of sensing electrodes disposed on a side of the substrate; and a ring electrode disposed on a first electrode layer. The first electrode layer is located on a side of a thin-film transistor of the plurality of thin-film transistors away from the substrate. The plurality of sensing electrodes are disposed on the first electrode layer, and the ring electrode is disposed around the plurality of sensing electrodes.
    Type: Grant
    Filed: September 29, 2022
    Date of Patent: February 20, 2024
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Shun Gong, Linzhi Wang, Kerui Xi, Jiansheng Zhong
  • Patent number: 11909118
    Abstract: Provided is an antenna. The antenna includes a first metal electrode, a second metal electrode, and a dielectric functional layer. The first metal electrode and the second metal electrode are located on two opposite sides of the dielectric functional layer, respectively; and the first metal electrode includes a plurality of transmission electrodes. The antenna further includes a flexible coplanar waveguide and a feed network. The flexible coplanar waveguide is electrically connected to the feed network and configured to feed an electrical signal to the feed network.
    Type: Grant
    Filed: December 10, 2021
    Date of Patent: February 20, 2024
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Zhenyu Jia, Kerui Xi, Baiquan Lin, Linzhi Wang, Qinyi Duan, Zuocai Yang, Feng Qin