Patents Assigned to TIANMA MICRO-ELECTRONICS CO., LTD
  • Publication number: 20240161700
    Abstract: A display method is applied to a display apparatus including a display panel, a display driver chip, and a microprocessor. The display method includes outputting, by the display panel, a scanning-done signal of a first frame image generated after scanning rows of pixel circuits of the display panel; after the microprocessor or the display driver chip receives the scanning-done signal, writing, by the display driver chip, initial data of a second frame image provided by the microprocessor and outputting, by the display driver chip, display data of the second frame image to the display panel based on the initial data; or outputting, by the display driver chip, the display data of the second frame image to the display panel in response to the scanning-done signal, the display data being generated based on the initial data provided by the microprocessor. The second frame image follows the first frame image.
    Type: Application
    Filed: January 19, 2024
    Publication date: May 16, 2024
    Applicants: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch
    Inventors: Chenguang SUN, Xinyang LI, Zhenqiang LI, Xingyao ZHOU, Yana GAO, Shuai YANG
  • Publication number: 20240161671
    Abstract: The method includes, in a low-frequency driving mode where a keeping phase is arranged between two active phases, providing a light-emitting control signal with a duty cycle of a % to a pixel circuit during the active phase; and performing first and second switches on the light-emitting control signal during the keeping phase. The first switch is performed before the second switch. Panel brightness at the first switch is higher than panel brightness at the second switch. The duty cycle of the light-emitting control signal is b % after the second switch. b>a. A total duration of active levels of the light-emitting control signal within one frame after the first switch is between a total duration of active levels of the light-emitting control signal with the duty cycle of a % and a total duration of active levels of the light-emitting control signal with the duty cycle of b % within one frame.
    Type: Application
    Filed: January 17, 2024
    Publication date: May 16, 2024
    Applicants: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch
    Inventors: Chenguang SUN, Xingyao ZHOU, Yana GAO, Shuai YANG, Mengmeng ZHANG, Jian KUANG
  • Publication number: 20240164162
    Abstract: Provided are a display panel and a display apparatus. The display panel includes a substrate, gating lines and pixels. The gating lines extend in a first direction. Each pixel includes a pixel circuit including a functional transistor. The functional transistor includes a patterned conductive structure. A gate of the functional transistor is located in the conductive structure. The conductive structure is electrically connected to the gating line through a via. A sheet resistance of a layer where the gating line is located is lower than a sheet resistance of a layer where the conductive structure is located.
    Type: Application
    Filed: January 24, 2024
    Publication date: May 16, 2024
    Applicants: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch
    Inventors: Huiping CHAI, Gaojun HUANG, Lin ZHANG
  • 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
  • Patent number: 11982892
    Abstract: A display panel and a display device are provided. The display panel includes a regular display region and an irregular display region. The display panel also includes a first substrate and a second substrate that are disposed opposite to each other, a liquid crystal layer disposed between the first and second substrates, and a heating electrode layer stacked with the liquid crystal layer. In the irregular display region, the heating electrode layer includes a plurality of first heating wires, and each first heating wire is connected between a first electrode wire and a second electrode wire. At least one first heating wire serves as a target heating wire including a first sub-segment and a second sub-segment. The first sub-segment has a resistance per unit length smaller than the second sub-segment, and the first sub-segment is closer to the regular display region than the second sub-segment.
    Type: Grant
    Filed: July 6, 2023
    Date of Patent: May 14, 2024
    Assignee: Shanghai Tianma Micro-electronics Co., Ltd.
    Inventors: Tenggang Lou, Jian Zhao, Qiongqin Mao, Huijun Jin, Ximin Qi
  • 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
  • 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: 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
  • 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
  • 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: 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
  • 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
  • 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: 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