Patents Assigned to TIANMA MICRO-ELECTRONICS CO., LTD
  • Patent number: 11982894
    Abstract: A display panel and a display device are provided. The display panel includes: a display region and a non-display region at least partially surrounding the display region; a first base plate and a second base plate opposite to each other; and first reflection structures in the non-display region. The first base plate includes a first substrate. The second base plate includes a light-blocking layer. In the non-display region, the light-blocking layer includes at least one first opening. Along a first direction, the at least one first opening penetrates through the light-blocking layer. The first direction is a thickness direction of the display panel. Along the first direction, a projection of a first reflection structure overlaps a projection of a corresponding first opening of the at least one first opening.
    Type: Grant
    Filed: November 10, 2022
    Date of Patent: May 14, 2024
    Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventors: Ankai Ling, Boping Shen
  • Patent number: 11984065
    Abstract: A 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 driving module is configured to provide a driving current for the light-emitting element, wherein the driving module includes a driving transistor, and the driving transistor is an NMOS transistor. The data-writing module is configured to selectively provide a data signal for the driving module. The compensation module is configured to compensate a threshold voltage of the driving transistor. An operational process of the pixel circuit includes a bias stage. In the bias stage, the compensation module is turned off, the driving transistor receives a bias signal, and the bias signal is configured to adjust a bias state of the driving transistor.
    Type: Grant
    Filed: November 29, 2022
    Date of Patent: May 14, 2024
    Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventors: Jieliang Li, Jiaxian Liu
  • Patent number: 11985886
    Abstract: Provided is a display panel and a display device, the display has a display area having an optical module arrangement region, a first display area, and a second display area, the display panel includes a plurality of pixels provided in the display area, the pixels include first pixels located in the optical module arrangement region, second pixels located in the first display area, and third pixels in the second display area; and pixel circuits including first pixel circuits, second pixel circuits, and third pixel circuits; the second pixel circuits are located in the first display area and electrically connected to the second pixels, the third pixel circuits are located in the second display area and electrically connected to the third pixels, the first pixel circuits are electrically connected to the first pixels and transistors of at least some of the first pixel circuits are located in the first display area.
    Type: Grant
    Filed: December 30, 2022
    Date of Patent: May 14, 2024
    Assignee: WuHan TianMa Micro-electronics CO., LTD
    Inventor: Yanyun Fan
  • Publication number: 20240154075
    Abstract: A display panel, a display apparatus and a method for manufacturing a display panel are provided. The display panel includes: a base substrate; multiple light-emitting devices, where the light-emitting device includes a first semiconductor layer, a second semiconductor layer and a light-emitting layer located between the first and second semiconductor layers, and the second semiconductor layer is located on a side of the light-emitting layer away from the base substrate; a first package structure, located on the side of the base substrate, where the first package structure includes a first package part located between two adjacent light-emitting devices; and a second package structure, where at least part of the second package structure is located on a side of the light-emitting device away from the base substrate, and a resistivity of the first package structure is higher than that of the second package structure.
    Type: Application
    Filed: January 4, 2024
    Publication date: May 9, 2024
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Quanpeng YU, Qijun YAO, Yue XIE
  • Publication number: 20240153965
    Abstract: A display panel, a method for driving the display panel, and a display device are provided. In an embodiment, the display panel includes: a first substrate; a display dielectric layer located at a side of the first substrate; pixel electrodes and peek-proof electrodes, all of the pixel electrodes and the peek-proof electrodes being arranged between the first substrate and the display dielectric layer; and a light-shielding structural layer including a light-shielding structure and a hollow-out portion. In an embodiment, along a direction perpendicular to a plane of the display panel, the peek-proof electrodes overlap with the light-shielding structure, and the pixel electrodes overlap with the hollow-out portion; and the light-shielding structural layer is located at a side of the peek-proof electrodes adjacent to a light exit surface of the display panel.
    Type: Application
    Filed: January 16, 2024
    Publication date: May 9, 2024
    Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventors: Meihong LIN, Yuchao WANG, Yanping YU
  • Patent number: 11980068
    Abstract: A display panel and a display device are provided in the present disclosure. The display panel includes a first display region and a second display region which are adjacently arranged. A light transmittance of the first display region is greater than a light transmittance of the second display region. The display panel further includes a plurality of scan lines and a plurality of data lines extending along the second direction. One first sub-pixel row is electrically connected to at least two of the plurality of scan lines. The plurality of data lines includes first data lines, where one of the first data lines is electrically connected to the first sub-pixel column, and at least a part of the first data lines is made of a transparent conductive material. In the first display region, at least two of the first data lines are connected through a connection line.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: May 7, 2024
    Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventors: Bingping Liu, Junyi Li, Guozhao Chen
  • Patent number: 11980059
    Abstract: Provided are an array substrate and a manufacturing method of an array substrate and a display panel and device. The array substrate includes a pixel circuit. The pixel circuit includes a first transistor and a second transistor, the first transistor includes a first active layer, the second transistor includes a second active layer, and the first active layer and the second active layer both include silicon. The array substrate further includes a first-type inorganic layer and a second-type inorganic layer and a first via hole. The first via hole is located above the first active layer and at least penetrates through the second-type inorganic layer. Concentration of hydrogen ions in the first active layer is less than concentration of hydrogen ions in the second active layer.
    Type: Grant
    Filed: February 15, 2023
    Date of Patent: May 7, 2024
    Assignee: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventor: Yong Yuan
  • 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: 20240143099
    Abstract: A display panel and a display apparatus are described. The display panel includes a plurality of touch units. The touch units include first electrodes and second electrodes that are disposed in a same layer. Adjacent first electrodes along a first direction are connected through a bridge line, and adjacent second electrodes along a second direction are connected through a connecting line. The bridge line is disposed in a different layer from the first electrode, and the connecting line is disposed in a same layer as the second electrode. A display region has a through-hole, and the touch units include a first touch unit that at least partially surrounds the through-hole. The first touch unit includes at least two bridge units, the bridge unit is connected to two adjacent first electrodes along the first direction, and the bridge unit includes at least one bridge line.
    Type: Application
    Filed: January 4, 2024
    Publication date: May 2, 2024
    Applicant: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Yufang MA, Haiyan WU
  • 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: 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
  • Patent number: 11972716
    Abstract: Provided are a display panel and display device. The display panel includes a driver circuit comprising a shift register that is N-stage cascaded, wherein N is a number greater than or equal to 2; where the shift register comprises: a third control unit configured to receive a first voltage signal and generate an output signal in response to a signal of a third node, or receive a second voltage signal and generate an output signal in response to a signal of a second node; and a fourth control unit comprising a first capacitor, a first transistor and a second transistor, where a second plate of the first capacitor is connected to a drain of the first transistor, a source of the second transistor is connected to a first node, and a drain of the second transistor is connected to the third node.
    Type: Grant
    Filed: February 28, 2023
    Date of Patent: April 30, 2024
    Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventor: Yong Yuan
  • Patent number: 11974392
    Abstract: A circuit board and a display device are provided. The circuit board has a device area and a peripheral area surrounding the device area. The circuit board includes a substrate, a metal layer, a first insulating layer, an adhesive layer, and an adhesive overflow detection line. The metal layer, the first insulating layer, and the adhesive layer are disposed at a same side of the substrate. The metal layer and the first insulating layer cover at least a part of the peripheral area. The metal layer is disposed between the first insulating layer and the substrate. The adhesive layer is disposed at a side of the first insulating layer away from the substrate and in the peripheral area.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: April 30, 2024
    Assignee: TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Lu Li, Long Chen, Lvshui Tan
  • Publication number: 20240138191
    Abstract: Provided are display panels and display apparatus. The display panel includes a driving array layer including a pixel circuit and a driving circuit configured to provide a control signal to the pixel circuit. The pixel circuit includes a first capacitor and a first transistor including an active layer including silicon. The driving circuit includes a second capacitor and a second transistor including an active layer including oxide semiconductor. In a direction perpendicular to a plane of the display panel, the first capacitor partially overlaps the first transistor, and the second capacitor does not overlap the second transistor; or in a direction perpendicular to a plane of the display panel, an area of a region where the first capacitor overlaps the first transistor is greater than an area of a region where the second capacitor overlaps the second transistor.
    Type: Application
    Filed: January 2, 2024
    Publication date: April 25, 2024
    Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventors: Jieliang LI, Jiaxian LIU
  • 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
  • Publication number: 20240138220
    Abstract: A display panel and a display apparatus are provided. The display panel includes pixel circuits, light-emitting device electrically connected to the pixel circuits, signal lines electrically connected to the pixel circuits and including signal transmitting lines each extending along a first direction, and a first connection portion located in a circuit region and each extending along a second direction. At least one pixel circuit group is disposed in the circuit region, each pixel circuit group includes at least two pixel circuits of the pixel circuits, and the at least two pixel circuits are arranged along the second direction intersecting the first direction. The at least two pixel circuits in one of the at least one pixel circuit group are electrically connected to one of the signal transmitting lines through the first connection portion.
    Type: Application
    Filed: December 15, 2023
    Publication date: April 25, 2024
    Applicant: WuHan TianMa Micro-electronics CO., LTD.
    Inventors: Yangzhao MA, Meihong WANG, Hao DAI, Pengcheng MU, Lida LI
  • Publication number: 20240138192
    Abstract: Provided are display panels and display apparatus. The display panel includes a driving array layer including a pixel circuit and a driving circuit configured to provide a control signal to the pixel circuit. The pixel circuit includes first and third transistors. The driving circuit includes second and fourth transistors. The first to fourth transistors include an active layer including silicon, an active layer including oxide semiconductor, an active layer including oxide semiconductor, and an active layer including silicon. The first and the third transistors are switching transistors of the pixel circuit, |W1/L1-W4/L4|<|W2/L2-W3/L3|; or the first and the third transistors are a driving transistor and a switching transistor of the pixel circuit, respectively, |W1/L1-W4/L4|>5*|W2/L2-W3/L3|; or the first and third transistors are a switching transistor and a driving transistor of the pixel circuit, respectively, 5*|W1/L1-W4/L4|<|W2/L2-W3/L3|.
    Type: Application
    Filed: January 2, 2024
    Publication date: April 25, 2024
    Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventors: Jieliang LI, Jiaxian LIU
  • 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: 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