Patents Assigned to Shanghai Tianma Micro-Electronics Co., Ltd.
  • Patent number: 11776299
    Abstract: A photoelectric sensor and a method for driving the same, and a display apparatus are provided. The photoelectric sensor includes a photosensitive circuit including a photoelectric diode, a reset transistor, a voltage conversion transistor, a read control transistor, and a read transistor that is a p-type transistor. The reset transistor, a first electrode of the photoelectric diode, and a control electrode of the voltage conversion transistor are electrically connected to a first node. The voltage conversion transistor, read control transistor, and a control electrode of read transistor are all electrically connected to a second node. The reset transistor is turned on by its control electrode to reset the first node. The voltage conversion transistor and read control transistor are turned on by their control electrodes, respectively, to control a voltage of the second node. The read transistor outputs a detection signal under control of its control electrode.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: October 3, 2023
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventor: Qijun Yao
  • Patent number: 11776495
    Abstract: A controller acquires video data, determines provisional luminance values for backlight blocks based on the video data, determines an adjustment coefficient for a backlight block of interest selected from the backlight blocks, determines an adjusted luminance value for the backlight block of interest based on the provisional luminance value and the adjustment coefficient for the backlight block of interest, and controls the backlight block of interest in accordance with the adjusted luminance value. In determining the adjustment coefficient, the controller calculates a statistic of provisional luminance values for reference backlight blocks including backlight blocks adjacent to the backlight block of interest, calculates a relative value of the statistic with respect to the provisional luminance value for the backlight block of interest, and determines the adjustment coefficient for the backlight block of interest based on the relative value and a predefined function.
    Type: Grant
    Filed: November 2, 2022
    Date of Patent: October 3, 2023
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventor: Kouichi Ooga
  • Patent number: 11776942
    Abstract: A method for manufacturing a display panel includes providing a backplate, forming bonding parts on backplate, forming an auxiliary layer on backplate, releasing light-emitting elements onto the auxiliary layer such that electrodes of the light-emitting elements are in contact with the first parts to form an intermediate backplate, arranging the intermediate backplate under first predetermined condition under which a fluidity of the first part is greater than that of the second part, and bonding the electrodes and the bonding parts to form an eutectic bonding layer, and arranging the intermediate backplate under second predetermined condition such that the first and second parts form solid-state first and second members. The backplate includes first and second regions. The bonding parts are located in the first regions. The auxiliary layer covers the backplate and the bonding parts. The auxiliary layer includes first and second parts respectively located in the first and second regions.
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: October 3, 2023
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventor: Canyuan Zhang
  • Publication number: 20230307489
    Abstract: Provided are a display panel and a spliced display device. The display panel includes pixel rows and spacing areas. The pixel rows include a type-A pixel row adjacent to a first panel edge and type-B pixel rows including a first type-B pixel row. The spacing areas correspond to and are adjacent to the type-B pixel rows, and close to the first panel edge. The pixel row includes light-emitting devices and pixel circuits. The pixel circuit includes a first part and a second part. In the type-A pixel row, the first part is located at a side of the light-emitting device close to the first panel edge, and the second part is located in the spacing area corresponding to the first type-B pixel row. In at least one type-B pixel row, the pixel circuit is located at a side of the light-emitting device close to the first panel edge.
    Type: Application
    Filed: March 27, 2023
    Publication date: September 28, 2023
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Tenggang LOU, Ximin QI
  • Publication number: 20230297182
    Abstract: A display panel and a display apparatus are provided. In an embodiment, the display panel has a display region including a fingerprint recognition region. In an embodiment, the fingerprint recognition region includes a plurality of light-transmitting apertures. In an embodiment, the display panel includes a plurality of sub-pixels, a plurality of touch electrodes, and a plurality of touch lines that are located in the display region. In an embodiment, one of the plurality of touch lines and one of the plurality of light-transmitting apertures are provided in different sub-pixel spacing regions of the plurality of sub-pixel spacing regions, respectively.
    Type: Application
    Filed: May 30, 2023
    Publication date: September 21, 2023
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Yang ZENG, Zhe LI, Jing ZHANG
  • Patent number: 11764181
    Abstract: Provided are a semiconductor package and a method for fabricating the semiconductor package. The method includes the followings steps: a first workpiece is provided, where the first workpiece includes a first substrate and multiple first rewiring structures arranged on the first substrate at intervals, and each first rewiring structure includes at least two first rewiring layers; an encapsulation layer is formed on the first rewiring structures, where the encapsulation layer is provided with multiple first through holes, and the first through holes expose one first rewiring layer; at least two second rewiring layers are disposed on a side of the encapsulation layer facing away from the first rewiring layer; multiple semiconductor elements are provided, where the semiconductor elements are arranged on a side of the first rewiring structures facing away from the encapsulation layer, where the first rewiring layers are electrically connected to pins of the semiconductor elements.
    Type: Grant
    Filed: June 1, 2022
    Date of Patent: September 19, 2023
    Assignees: Shanghai Tianma Micro-Electronics Co., Ltd., Shanghai AVIC OPTO Electronics Co., Ltd.
    Inventors: Feng Qin, Kerui Xi, Tingting Cui, Jie Zhang, Xuhui Peng
  • Patent number: 11754874
    Abstract: Provided is a liquid crystal display panel, including: first and second substrates; a liquid crystal layer between the first and second substrates; a first linear polarizer provided at a side of the first substrate facing away from the liquid crystal layer and having an absorption axis extending along a first direction; a second linear polarizer provided at a side of the second substrate facing away from the liquid crystal layer and having an absorption axis extending along a direction perpendicular to the first direction; a first quarter-wave plate provided at the side of the first substrate facing away from the liquid crystal layer; a second quarter-wave plate between the first substrate and the liquid crystal layer; and a first half-wave plate provided at the side of the first substrate facing away from the liquid crystal layer, and/or a second half-wave plate between the first substrate and the liquid crystal layer.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: September 12, 2023
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Yuanying Wang, Jun Zhou, Fan Tian, Yuefeng Gu
  • Publication number: 20230282659
    Abstract: An optical device package includes a glass substrate, a warpage reducing film, a redistribution layer, and a semiconductor element. The warpage reducing film is disposed directly or indirectly on the glass substrate. The redistribution layer includes a wiring sublayer and an insulating sublayer. The wiring sublayer and the insulating sublayer are at least partially disposed on the warpage reducing film. The semiconductor element is mounted on the redistribution layer.
    Type: Application
    Filed: January 20, 2023
    Publication date: September 7, 2023
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Akira FUJITA, Futoshi NAKANISHI, Shingo SAIGOU, Nobuya SEKO
  • Patent number: 11740498
    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: Grant
    Filed: December 2, 2022
    Date of Patent: August 29, 2023
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventor: Koji Kawashima
  • Publication number: 20230267891
    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: Application
    Filed: April 27, 2023
    Publication date: August 24, 2023
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Nana XIONG, Jujian FU
  • Patent number: 11733566
    Abstract: A curved liquid crystal panel includes a first substrate curved in a first direction; a second substrate curved in a first direction and facing the first substrate; a liquid crystal sandwiched between the first substrate and the second substrate; a first seal that adheres the first substrate and the second substrate to each other and that seals the liquid crystal; and a second seal surrounding a periphery of the first seal. A force of the second seal that adheres the first substrate and the second substrate to each other is weaker than a force of the first seal that adheres the first substrate and the second substrate to each other.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: August 22, 2023
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventor: Tetsuroh Asakura
  • Publication number: 20230260318
    Abstract: Provided are a display panel and a display device. An array layer is located on a substrate. A display layer is located on a side of the array layer facing away from the substrate and includes light-emitting elements. A color filter layer is located on a side of the display layer facing away from the array layer. The color filter layer includes a light-blocking layer and color filters. The light-blocking layer includes first light-blocking part. At least one light-transmitting aperture is disposed in the first light-blocking part. First metal part overlaps the first light-blocking part. Further provided is a display device including the preceding display panel.
    Type: Application
    Filed: April 18, 2023
    Publication date: August 17, 2023
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Feng LU, Yang ZENG
  • Publication number: 20230258979
    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: Application
    Filed: April 25, 2023
    Publication date: August 17, 2023
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Zhanxiang Guo, Yumin Xu, Jianguo Bian, Jiantao Ren, Binbin Chang, Zhaoxing Gao, Weiyang Sun, Wanzhen Wang
  • Publication number: 20230260470
    Abstract: A display panel and a display device are provided. The display panel includes at least one pixel circuit and a light emitting element. One pixel circuit includes a driving transistor, a second transistor, a third transistor, and a first light-emission controlling module. The second transistor is connected between a data line and a source of the driving transistor and is configured to provide a data signal. The third transistor is connected between a voltage adjusting signal line and the source of the driving transistor and is configured to provide an adjusting voltage. The first light-emission controlling module is connected between a first power supply terminal and the source of the driving transistor and is configured to provide a power supply voltage. The power supply voltage provided by the first power supply terminal is VP, and the adjusting voltage is VJ, where VP<VJ?VP+3.5V, and/or VP+1V<VJ.
    Type: Application
    Filed: April 27, 2023
    Publication date: August 17, 2023
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Nana XIONG, Jujian FU
  • Publication number: 20230260469
    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: Application
    Filed: April 27, 2023
    Publication date: August 17, 2023
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Nana XIONG, Jujian FU
  • Patent number: 11726598
    Abstract: A tactile presentation device includes a movable part, a base, a guider, and one or more actuators. The movable part includes a first main surface and presents tactile to a user by being displaced in a predetermined one axial direction parallel to the first main surface. The base supports the movable part in a displaceable manner. The guider connects the base and the movable part, and regulates a displacement direction of the movable part in the one axial direction by sliding in the one axial direction. The actuator displaces the movable part in the one axial direction from one end side of the movable part in the one axial direction. When the number of actuators is one, the actuator is located on a symmetry axis of the movable part parallel to the one axial direction.
    Type: Grant
    Filed: June 17, 2022
    Date of Patent: August 15, 2023
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Harue Sasaki, Hiroshi Haga, MingJi Hsu
  • Publication number: 20230251538
    Abstract: A liquid crystal display device includes a first liquid crystal display panel and a second liquid crystal display panel. The second liquid crystal display panel includes a scanning wiring extending in a zig-zag in the predetermined first direction. A period of bending points of the scanning wiring corresponds to a predetermined number of the sub pixels of the first liquid crystal display panel. The predetermined number is greater that a number of colors of the sub pixels arranged in the predetermined first direction in one of the first main pixel of the first liquid crystal display panel, and is not a natural number multiple of the number of colors of the sub pixels repeatedly arranged along the predetermined first direction of the first liquid crystal display panel.
    Type: Application
    Filed: February 3, 2023
    Publication date: August 10, 2023
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Hisashi HAYASHI, Hidenori Ikeno
  • Publication number: 20230251533
    Abstract: A liquid crystal display panel includes a plurality of pixels. The pixels each include a pixel electrode, a common electrode, and a liquid crystal that rotates in-plane due to voltage applied by the pixel electrode and the common electrode. The pixel electrode includes a linear electrode. When an initial alignment direction of the liquid crystal for which dielectric anisotropy is positive, or a direction perpendicular to the initial alignment direction of the liquid crystal for which dielectric anisotropy is negative is defined as a predetermined first direction, at a boundary between pixels, of the plurality of pixels, that are adjacent to each other, a boundary line between the adjacent pixels, the linear electrode, and an end side of the linear electrode are inclined with respect to the predetermined first direction, and inclining directions with respect to the predetermined first direction of the boundary line, the linear electrode, and the end side are identical.
    Type: Application
    Filed: February 3, 2023
    Publication date: August 10, 2023
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventor: Takayuki KONNO
  • Publication number: 20230251536
    Abstract: A liquid crystal display device includes a first liquid crystal display panel, and a second liquid crystal display panel that overlaps the first liquid crystal display panel. At least one of the first liquid crystal display panel and the second liquid crystal display panel includes a light blocking pattern that is repeatedly arranged and has light blocking properties. The light blocking pattern includes a first light blocking line and a second light blocking line that extend in a predetermined direction. The first light blocking line includes a first incline inclined with respect to the predetermined direction, and a second incline inclined in a direction opposite the first incline with respect to the predetermined direction, and the second light blocking line is adjacent to the first light blocking line and is line-symmetrical, with respect to the predetermined direction, to the first light blocking line.
    Type: Application
    Filed: February 3, 2023
    Publication date: August 10, 2023
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Hidenori IKENO, Shinya ONDA, Tomomi HONDA, Takayuki KONNO
  • Publication number: 20230241646
    Abstract: A method of manufacturing a piezoelectric element array board includes fabricating a plurality of piezoelectric element control circuits including one or more thin-film transistors on a substrate, fabricating a plurality of piezoelectric elements on the substrate, and poling a piezoelectric material by applying an electric field to a piezoelectric material layer of the plurality of piezoelectric elements while maintaining the one or more thin-film transistors in a state of generating higher leakage current, after fabricating the plurality of piezoelectric elements and the plurality of piezoelectric element control circuits.
    Type: Application
    Filed: January 20, 2023
    Publication date: August 3, 2023
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Kenji SERA, Kenichi HAYASHI, Hiroshi HAGA, Shin TAKEUCHI