Patents Assigned to Shanghai Tianma Micro-Electronics Co., Ltd.
  • Publication number: 20230244022
    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. The converging portion is configured to make light that enters the converging portion be converged towards a direction away from a center of the aperture. The diverging portion is configured to make light that enters the diverging portion be diverged towards a direction away from the center of the aperture. The converging portion is located at a side of the transmission portion away from the center of the aperture.
    Type: Application
    Filed: April 7, 2023
    Publication date: August 3, 2023
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Zhanxiang GUO, Yumin XU, Binbin CHANG, Zhaoxing GAO, Wanzhen WANG, Weiyang SUN, Jianguo BIAN
  • Publication number: 20230246038
    Abstract: Provided are a display panel and a spliced display device. The display panel includes first and second edges, first and second pixel rows, and first spacing regions. The first pixel row is adjacent to the first edge and includes first sub-pixels and each including a first light-emitting device and a first pixel circuit. The second pixel row includes second sub-pixels and each including a second light-emitting device and a second pixel circuit. The first spacing region is located at a side of the second pixel row close to the first edge. The second pixel rows include a second A pixel row adjacent to the first pixel row. The first pixel circuit is located in the first spacing region corresponding to the second A pixel row, and the second pixel circuit is located at a side of the second light-emitting device close to the first edge.
    Type: Application
    Filed: March 29, 2023
    Publication date: August 3, 2023
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Tenggang Lou, Yiran Zhu
  • Publication number: 20230230982
    Abstract: Provided are a display panel and a display device. In an embodiment, the display panel includes: a substrate; pixel circuit islands provided at a side of the substrate, one of the pixel circuit islands includes at least one pixel circuit; light-emitting elements provided at a side of the pixel circuit islands away from the substrate and respectively electrically connected to the pixel circuits of the pixel circuit islands; and light-blocking structures including at least one of a reflective structure or a light-absorbing structure. In an embodiment, he light-blocking structures include first light-blocking structures, each of which is provided on at least one sidewall of one pixel circuit island of the pixel circuit islands. In an embodiment, he first light-blocking structure prevents light out of the pixel circuit island from entering the pixel circuit island through the sidewall of the pixel circuit island.
    Type: Application
    Filed: March 24, 2023
    Publication date: July 20, 2023
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventor: Yingteng Zhai
  • Patent number: 11703970
    Abstract: A display panel and a display apparatus are provided. The display panel has a display region including a fingerprint recognition region. The fingerprint recognition region includes a plurality of light-transmitting apertures. The display panel includes a plurality of sub-pixels, a plurality of touch electrodes, and a plurality of touch leads that are located in the display region. The plurality of touch leads is electrically connected to the plurality of touch electrodes, respectively. The display region includes sub-pixel spacing regions located between two adjacent sub-pixels, and at most one of the touch lead and the light-transmitting aperture is arranged in the sub-pixel spacing region.
    Type: Grant
    Filed: June 1, 2022
    Date of Patent: July 18, 2023
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Yang Zeng, Zhe Li, Jing Zhang
  • Patent number: 11705643
    Abstract: Disclosed antenna unit includes first substrate and second substrate opposite to each other, phase shifting units and driver circuit. Region facing the first substrate and the second substrate form phase shifting region. In first direction, the first substrate formed with first step region, and used for connecting radio-frequency signal terminal; in second direction, the second substrate formed with second step region, and included angle between the first direction and the second direction greater than or equal to 0° and smaller than 180°. At least part of the first step region does not overlap at least part of the second step region. Phase shifting units used for radiating radio-frequency signal and distributed in phase shifting region, each phase shifting unit. At least part of the driver circuit disposed in the second step region and the driver circuit electrically connected to each phase shifting unit to adjust radio-frequency signal.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: July 18, 2023
    Assignees: Shanghai AVIC OPTO Electronics Co., Ltd., Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Kerui Xi, Xuhui Peng, Feng Qin, Tingting Cui, Zhenyu Jia
  • Patent number: 11693500
    Abstract: A touch display panel and a display device are provided. The touch display panel includes a substrate, and a touch layer located on a side of the substrate. The touch layer comprises a first metal layer, an insulation layer, and a second metal layer stacked in sequence. The touch display panel also includes a plurality of touch electrodes located in the second metal layer. A touch electrode of the plurality of touch electrodes comprises a first electrode line extending along a first direction and a second electrode line extending along the second direction, and the first direction intersects the second direction. The touch display panel also includes a plurality of touch leads. The touch electrode is electrically connected to a corresponding touch lead of the plurality of touch leads. The touch lead comprises a first wiring portion extending along the first direction.
    Type: Grant
    Filed: January 18, 2022
    Date of Patent: July 4, 2023
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Zhe Li, Feng Lu
  • Publication number: 20230204995
    Abstract: A backlight unit includes a case having a bottom plate and a side wall, an optical component placed inside the case, and an elastic component that engages with the side wall of the case, making contact with the optical component. A side wall of a front bezel is located outside the side wall of the case. The elastic component includes an outer portion. The outer portion is positioned between an inner surface of the side wall of the front bezel and an outer surface of the side wall of the case, makes contact with the inner surface of the side wall of the front bezel and the outer surface of the side wall of the case, and presses the inner surface of the side wall of the front bezel and the outer surface of the side wall of the case along an in-plane direction of the display area.
    Type: Application
    Filed: December 2, 2022
    Publication date: June 29, 2023
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventor: Koji KAWASHIMA
  • Publication number: 20230205018
    Abstract: A liquid crystal display panel includes a first substrate curved in a first direction, a second substrate curved in the first direction and facing the first substrate, a liquid crystal sandwiched between the first substrate and the second substrate, and a seal that adheres the first substrate and the second substrate to each other, and that seals the liquid crystal. When cross-sectionally viewing on a cross-section including the first direction and a display direction, a curved surface conforming to first main surface of the first substrate facing the second substrate includes at least one inflection point in a region surrounded by the seal, and tangent planes of the curved surface at each inner peripheral end of the seal are parallel to each other.
    Type: Application
    Filed: December 1, 2022
    Publication date: June 29, 2023
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventor: Akira BANJOUYA
  • Patent number: 11686974
    Abstract: A display panel and a display apparatus are provided. The display panel includes a display substrate and a birefringence layer disposed on a display surface of the display substrate. The birefringence layer includes a first region; the first region is disposed at least in the display region; a plurality of repeating units are sequentially disposed in the first region along a first direction parallel to the display surface of the display substrate, and one repeating unit includes at least two refractive regions that are sequentially arranged along the first direction to form. Refractive indexes of the at least two refractive regions are different from each other. An interface between the at least two refractive regions forms an acute angle ? with the display surface of the display substrate. A width of the repeating unit is smaller than a wavelength of light emitted from the display panel.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: June 27, 2023
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventor: Haijing Chen
  • Patent number: 11687203
    Abstract: Touch display device, touch display panel, touch module and forming method thereof are provided. The touch module includes a substrate, and a first shadow elimination layer, a touch electrode layer, a second shadow elimination layer, and a bridge layer that are sequentially located on a side of the substrate. The touch electrode layer includes a plurality of first touch electrodes. The bridge layer includes a plurality of bridges, and a bridge of the plurality of bridges connects two adjacent first touch electrodes through a via passing through the second shadow elimination layer.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: June 27, 2023
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Haiquan Li, Yimiao Ding, Jun Zhou, Lihua Wang, Shanshan Zhang
  • Publication number: 20230185114
    Abstract: An eyewear is provided. The eyewear includes a display functional layer and a light-guiding structure. The light-guiding structure is located at a side of the display functional layer facing towards a viewing surface, or the display functional layer surrounds the light-guiding structure.
    Type: Application
    Filed: February 3, 2023
    Publication date: June 15, 2023
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Quanpeng YU, Qijun YAO, Yang ZENG, Ran HUANG
  • Publication number: 20230186845
    Abstract: A display panel and a display device are provided. First pixel driving circuits are arranged in a display transition area, and the influence of the first pixel driving circuit on a display light transmissive area is avoided, and the light transmittance of the display light transmissive area is improved. A first pixel gap is arranged between adjacent first pixel driving circuits in a first display area, ensuring that a first signal line passes through the first display area from the first pixel gap, without the need to perform discontinuation processing on the first signal line at the first display area, and the problem of load difference between two discontinued wirings due to the discontinuation of the first signal line is avoided, to eliminate the position restriction of the first display area, and providing innovation for the development of the technology of under-screen devices.
    Type: Application
    Filed: September 9, 2022
    Publication date: June 15, 2023
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventor: Shaowei LIU
  • Publication number: 20230178411
    Abstract: Provided are a display panel and a transfer method. The display panel includes: an array substrate, where the array substrate includes a base substrate, and the base substrate comprises a plurality of sub-pixel setting regions arranged in an array; an insulating layer located on a side of the pixel driving circuit array facing away from the base substrate, where the pixel driving circuit array includes pixel driving circuits arranged in an array; the insulating layer forms accommodating grooves respectively within the plurality of sub-pixel setting regions; and the pixel driving circuits are disposed in one-to-one correspondence with the accommodating grooves; and data lines and heating lines, where each of the data lines is electrically connected to a respective column of pixel driving circuits among a plurality of columns of pixel driving circuits arranged in the array.
    Type: Application
    Filed: January 31, 2023
    Publication date: June 8, 2023
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Jian ZHAO, Xiaohe LI, Haoxu HU
  • Patent number: 11670246
    Abstract: A display panel and a method for driving the same, and a display device are provided. The display panel includes a light emitting element and a pixel circuit that includes a data writing module configured to provide a data signal and an adjusting voltage, a driving module configured to provide a driving current to the light emitting element and including a driving transistor, and a compensation module configured to compensate a threshold voltage of the driving transistor. An operation process of the display panel includes a period of a data writing frame during which the pixel circuit executes a data writing phase during which the data writing module writes the data signal and a light emitting phase, and a period of a holding frame during which the pixel circuit executes a reset and adjustment phase during which the data writing module writes the adjusting voltage and the light emitting phase.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: June 6, 2023
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Nana Xiong, Jujian Fu
  • Patent number: 11670247
    Abstract: A display panel and a method for driving the same, and a display device are provided. The display panel includes a light emitting element and a pixel circuit that includes a data writing module configured to provide a data signal and an adjusting voltage, a driving module configured to provide a driving current to the light emitting element and including a driving transistor, and a compensation module configured to compensate a threshold voltage of the driving transistor. An operation process of the display panel includes a period of a data writing frame during which the pixel circuit executes a data writing phase during which the data writing module writes the data signal and a light emitting phase, and a period of a holding frame during which the pixel circuit executes a reset and adjustment phase during which the data writing module writes the adjusting voltage and the light emitting phase.
    Type: Grant
    Filed: January 3, 2022
    Date of Patent: June 6, 2023
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Nana Xiong, Jujian Fu
  • Patent number: 11670249
    Abstract: Disclosed is a method of controlling a backlight for of a display panel. The backlight includes backlight blocks. The display panel includes display region blocks opposite to the backlight blocks in one-to-one correspondence. The method determines, for each of the backlight blocks, a luminance value demanded from each of pixels in display region blocks including a display region block opposite to the backlight block and one or more display region blocks adjacent to the opposite display region block to the backlight block based on a luminance value of the pixel and a weight determined depending on a relation of a location of the pixel and a location of the backlight block. The method determines, for each of the backlight blocks, a highest value among the demanded luminance values for the backlight block to be a luminance value for the backlight block.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: June 6, 2023
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventor: Kouichi Ooga
  • Patent number: 11670852
    Abstract: A scanning antenna is provided in the present disclosure. The scanning antenna includes a first substrate and a second substrate which are arranged oppositely; a liquid crystal layer between the first substrate and the second substrate; and a feed signal access terminal and a plurality of phase shift units, where the plurality of phase shift units is connected with each other, each phase shift unit is connected to the feed signal access terminal, and electrical lengths between at least two phase shift units and the feed signal access terminal are different. The present disclosure not only realizes one-dimensional wave beam scanning, but also has desirable scanning effect. The bias voltage is not needed to be independently applied to each phase shift unit, which can greatly simplify the bias voltage line configuration and be beneficial for reducing production cost and wiring difficulty.
    Type: Grant
    Filed: January 12, 2022
    Date of Patent: June 6, 2023
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Dengming Lei, Kerui Xi, Zhenyu Jia, Ping Su, Huihui Jiang, Yi Wang, Wei Li, Huan Li, Feng Qin
  • Publication number: 20230168739
    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: Application
    Filed: November 21, 2022
    Publication date: June 1, 2023
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Shin TAKEUCHI, Hiroshi Haga
  • Publication number: 20230168528
    Abstract: A display module and a method for driving the same, a display apparatus, and a vehicle are provided. The display module includes a backlight component, and a display component and a light-adjusting component that are located at a side of the backlight component facing toward a light-emitting direction of the display module. The backlight component includes a first light guide structure and a light regulating structure. The light-adjusting component includes first and second electrodes, and a first liquid crystal. The display module has a sharing mode and an anti-peeping mode. In the sharing mode, the first electrode and the second electrode are not energized, and the first liquid crystal is in a wide viewing angle state. In the anti-peeping mode, the first electrode and the second electrode drive the first liquid crystal to be in a narrow viewing angle state.
    Type: Application
    Filed: January 12, 2023
    Publication date: June 1, 2023
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Longcai Xin, Zhiyuan Zhang, Fan Tian
  • Publication number: 20230161032
    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: Application
    Filed: January 5, 2023
    Publication date: May 25, 2023
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Lu LIAN, Feng LU, Haochi YU