Patents Assigned to Xiamen Tianma Microelectronics Co., Ltd.
  • Publication number: 20240136366
    Abstract: A display panel and a display device are provided. The display panel includes a display region and a non-display region. The non-display region includes a demultiplexing circuit, a fanout wire, and a clock signal line. An input terminal of the demultiplexing circuit is electrically connected to the fanout wire, an output terminal of the demultiplexing circuit is electrically connected to a data line in the display region, and a control terminal of the demultiplexing circuit is electrically connected to the clock signal line. The display panel further includes an isolation signal line including an isolation portion, and an orthographic projection of the isolation portion on a plane where a substrate is located is between an orthographic projection of the clock signal line on the plane where the substrate is located and an orthographic projection of the fanout wire on the plane where the substrate is located.
    Type: Application
    Filed: January 4, 2024
    Publication date: April 25, 2024
    Applicant: Xiamen Tianma Microelectronics Co., Ltd.
    Inventors: Guangdeng YANG, Yiqiang LIN, Dongxu QIU, Hao WU, Poping SHEN
  • Publication number: 20240062690
    Abstract: Provided are a display panel and a display device, which relate to the field of display technology. The display panel includes a source line and a signal line group including a first signal line group, the first signal line group includes a first signal line and a second signal line. The first signal line includes a first line segment and a second line segment which are coupled. The second signal line includes a third line segment and a fourth line segment which are coupled. Along the first direction, a distance between the first line segment and a source line is less than or equal to a distance between the third line segment and the source line, and a distance between the second line segment and the source line is greater than or equal to a distance between the fourth line segment and the source line.
    Type: Application
    Filed: October 25, 2023
    Publication date: February 22, 2024
    Applicant: Xiamen Tianma Microelectronics Co., Ltd.
    Inventors: Yiqiang LIN, Zonghua QIAO
  • Publication number: 20240038192
    Abstract: In the display panel, a display region includes a plurality of sub-pixels arranged in an array, and a non-display region includes a plurality of demultiplexers, a plurality of signal source lines and M timing control lines. Each of the plurality of demultiplexers includes N gating switches, where in the same demultiplexer, input terminals of a plurality of gating switches are electrically connected to the same signal source line, an output terminal of each of the plurality of gating switches is electrically connected to one column of sub-pixels, and control terminals of the plurality of gating switches are electrically connected to different timing control lines. data signals transmitted by at least two signal source lines electrically connected to at least two gating switches controlled by a timing control line have opposite voltage polarities.
    Type: Application
    Filed: October 11, 2023
    Publication date: February 1, 2024
    Applicant: Xiamen Tianma Microelectronics Co., Ltd.
    Inventors: Hao WU, Yiqiang LIN
  • Patent number: 11830418
    Abstract: Provided is a pixel driving circuit. The pixel driving circuit includes a reset unit, a storage unit, an initialization unit, a drive unit, a threshold compensation unit, and a data write unit. A first terminal of the reset unit is configured to input the signal output by a reset power supply. A second terminal of the reset unit is connected to the control terminal of the drive unit and configured to provide the reset power supply for the control terminal of the drive unit during a power-on period. During the power-on period of the pixel driving circuit, the reset unit provides the reset power supply for the drive unit and performs reset control on the drive unit, so that the drive unit is prevented from being abnormally turned on during a power-on stage, thereby avoiding a screen flicker phenomenon.
    Type: Grant
    Filed: December 7, 2022
    Date of Patent: November 28, 2023
    Assignee: Xiamen Tianma Microelectronics Co., Ltd.
    Inventors: Jian Liu, Liu Wang, Wei Wu, Zhijie Wang, Shumao Wu, Guochang Lai
  • Patent number: 11768404
    Abstract: Provided are a driving substrate, a backlight, and a display device. The driving substrate includes a plurality of backlight partitions arranged in an array. Each of the plurality of backlight partitions is provided with a first pad set column and a second pad set column, where the first pad set column and the second pad set column comprise arranged along a first direction and each include a plurality of pad sets arranged along a second direction, where the first direction intersects with the second direction. A boundary on one side of the first pad set column facing away from the second pad set column is denoted as a first boundary, and a boundary on one side of the second pad set column facing away from the first pad set column is denoted as a second boundary.
    Type: Grant
    Filed: December 6, 2022
    Date of Patent: September 26, 2023
    Assignee: Xiamen Tianma Microelectronics Co., Ltd.
    Inventors: Liu Wang, Jian Liu, Zhijie Wang, Shumao Wu, Guochang Lai
  • Patent number: 11756484
    Abstract: Provided are a light-emitting panel, a driving method of a light-emitting panel, and a display device. The display panel includes multiple light-emitting units, multiple first switch units, and a constant-current circuit. The light-emitting units are disposed on one side of a substrate and are arranged in an array along a first direction and a second direction. A first terminal of a light-emitting unit is electrically connected to a first supply voltage terminal. A second terminal of the light-emitting panel is electrically connected to a respective first terminal of a first switch unit. The control terminal of the first switch unit is electrically connected to a scan signal line extending along the first direction. A second terminal of the first switch unit is electrically connected to a data signal line extending along the second direction. An output terminal of the constant-current circuit is electrically connected to the data signal line.
    Type: Grant
    Filed: November 29, 2022
    Date of Patent: September 12, 2023
    Assignee: Xiamen Tianma Microelectronics Co., Ltd.
    Inventor: Wenbin Yang
  • Publication number: 20230268324
    Abstract: Provided are a display panel and a display device. The display panel includes a substrate and multiple display units located on a side of the substrate. The display units include multiple light-emitting elements. The light-emitting elements include main light-emitting elements and backup light-emitting elements. The number of main light-emitting elements is greater than the number of backup light-emitting elements. The main light-emitting elements are arranged in a first direction. In a second direction, a backup light-emitting element is located between two main light-emitting elements. In the second direction, at least two main light-emitting elements are disposed adjacent to each other. When the display panel is driven to display an image, and when a dead pixel appears in a main light-emitting element, a backup light-emitting element emits light to replace the main light-emitting element in which the dead pixel appears for display.
    Type: Application
    Filed: April 28, 2023
    Publication date: August 24, 2023
    Applicant: Xiamen Tianma Microelectronics Co., Ltd.
    Inventors: Liting FANG, Xiaofen CHEN, Wei WANG
  • Publication number: 20230253534
    Abstract: The present application discloses a display panel and a display apparatus. The display panel includes: a first substrate and a second substrate, and an isolation structure and a plurality of light-emitting devices between the first substrate and the second substrate, the second substrate and the first substrate being both connected to the isolation structure, the first substrate, the isolation structure and the second substrate forming a plurality of excitation cavities, and each of the light-emitting devices being in one of the excitation cavities; a quantum dot layer including quantum dots, in the excitation cavities and on a side of the light-emitting devices facing away from the first substrate; where sidewalls of the excitation cavities are provided with a reflection portion, at least a part of the reflection portion covers at least a part of the first substrate and at least a part of the second substrate.
    Type: Application
    Filed: May 5, 2022
    Publication date: August 10, 2023
    Applicant: Xiamen Tianma Microelectronics Co., Ltd.
    Inventor: Jiayou YAN
  • Patent number: 11721288
    Abstract: In the pixel circuit, first terminal of drive module configured to receive signal output by first power supply, first light emission control module connected between second terminal of drive module and first terminal of light emitting module, and second terminal of light emitting module connected to second power supply; first terminal of first storage module connected to control terminal of drive module, second terminal of first storage module connected to first terminal of second storage module, and second terminal of second storage module connected to first terminal of light emitting module; threshold detection module connected between second terminal of first storage module and second terminal of drive module, and configured to control first storage module to store threshold voltage of drive module; data writing module connected to second terminal of drive module; an initialization module connected to control terminal of drive module and first terminal of light emitting module.
    Type: Grant
    Filed: July 6, 2022
    Date of Patent: August 8, 2023
    Assignee: Xiamen Tianma Microelectronics Co., Ltd.
    Inventors: Qingjun Lai, Yihua Zhu
  • Publication number: 20230246152
    Abstract: A light-emitting panel includes a substrate including a first surface and a second surface opposite to each other, light-emitting elements disposed on the first surface, driver chips, at least one of the driver chips disposed on the second surface, and first connection vias penetrating through the substrate. At least one of the driver chips is electrically connected to a respective one of the light-emitting elements through a respective one of the first connection vias. In the technical solutions, at least part of the driver chips are disposed on the second surface of the substrate, that is, at least part of the driver chips are disposed on a different substrate surface from the light-emitting elements. Thus, the driver chips are effectively prevented from interfering with the light-emitting effect of the light-emitting elements, and more space can be provided for disposing light-emitting elements, thereby ensuring the light-emitting effect of the light-emitting panel.
    Type: Application
    Filed: March 29, 2023
    Publication date: August 3, 2023
    Applicant: Xiamen Tianma Microelectronics Co., Ltd.
    Inventors: Jian LIU, Liu WANG, Zhijie WANG, Shumao WU, Wei WU, Guochang LAI
  • Publication number: 20230122051
    Abstract: Provided are a light-emitting panel, a driving method of a light-emitting panel, and a display device. The display panel includes multiple light-emitting units, multiple first switch units, and a constant-current circuit. The light-emitting units are disposed on one side of a substrate and are arranged in an array along a first direction and a second direction. A first terminal of a light-emitting unit is electrically connected to a first supply voltage terminal. A second terminal of the light-emitting panel is electrically connected to a respective first terminal of a first switch unit. The control terminal of the first switch unit is electrically connected to a scan signal line extending along the first direction. A second terminal of the first switch unit is electrically connected to a data signal line extending along the second direction. An output terminal of the constant-current circuit is electrically connected to the data signal line.
    Type: Application
    Filed: November 29, 2022
    Publication date: April 20, 2023
    Applicant: Xiamen Tianma Microelectronics Co., Ltd.
    Inventor: Wenbin YANG
  • Publication number: 20230096851
    Abstract: Provided is a pixel driving circuit. The pixel driving circuit includes a reset unit, a storage unit, an initialization unit, a drive unit, a threshold compensation unit, and a data write unit. A first terminal of the reset unit is configured to input the signal output by a reset power supply. A second terminal of the reset unit is connected to the control terminal of the drive unit and configured to provide the reset power supply for the control terminal of the drive unit during a power-on period. During the power-on period of the pixel driving circuit, the reset unit provides the reset power supply for the drive unit and performs reset control on the drive unit, so that the drive unit is prevented from being abnormally turned on during a power-on stage, thereby avoiding a screen flicker phenomenon.
    Type: Application
    Filed: December 7, 2022
    Publication date: March 30, 2023
    Applicant: Xiamen Tianma Microelectronics Co., Ltd.
    Inventors: Jian LIU, Liu WANG, Wei WU, Zhijie WANG, Shumao WU, Guochang LAI
  • Patent number: 11551631
    Abstract: A display panel includes a first display region and a second display region. The light transmittance of the first display region is greater than the light transmittance of the second display region. The first display region includes a plurality of first sub-pixels. At least one of the first sub-pixels includes an electrode group. The electrode group includes a first electrode and a second electrode. In the first direction, the orthographic projection of the first electrode at least partially overlaps the orthographic projection of the second electrode. The first direction is parallel to the light-emitting surface of the display panel. In the stage of capturing, the voltage difference between the first electrode and the second electrode is greater than zero volts. The phase of a voltage difference of the first electrode to the second electrode is reversed as a frame is reversed.
    Type: Grant
    Filed: February 25, 2022
    Date of Patent: January 10, 2023
    Assignee: Xiamen Tianma Microelectronics Co., Ltd.
    Inventors: Linyan Guan, Hailiang Wang, Yaying Li, Weipeng Wang, Suxia Xu, Junyi Li
  • Patent number: 11500245
    Abstract: The present application discloses a backlight module and a display device. The backlight module includes a plurality of first regions and a plurality of second regions arranged adjacently; the backlight module includes a substrate, including a light-transmitting region, in which the light-transmitting region is at least partially located in the second regions; a plurality of first light-emitting elements, arranged at a side of the substrate, in which the first light-emitting elements are located in the first regions, and the first light-emitting elements emit light along a direction perpendicular to a plane where the substrate is located; a light-guiding plate, arranged at a side of the substrate away from the first light-emitting elements, in which the light-guiding plate includes a plurality of light-supplementing portions located in the second regions; and at least one second light-emitting element, arranged at a side face of the light-guiding plate.
    Type: Grant
    Filed: March 9, 2022
    Date of Patent: November 15, 2022
    Assignee: Xiamen Tianma Microelectronics Co., Ltd.
    Inventors: Zhiqiang Zhu, Yaozuo Ke
  • Publication number: 20220335897
    Abstract: In the pixel circuit, first terminal of drive module configured to receive signal output by first power supply, first light emission control module connected between second terminal of drive module and first terminal of light emitting module, and second terminal of light emitting module connected to second power supply; first terminal of first storage module connected to control terminal of drive module, second terminal of first storage module connected to first terminal of second storage module, and second terminal of second storage module connected to first terminal of light emitting module; threshold detection module connected between second terminal of first storage module and second terminal of drive module, and configured to control first storage module to store threshold voltage of drive module; data writing module connected to second terminal of drive module; an initialization module connected to control terminal of drive module and first terminal of light emitting module.
    Type: Application
    Filed: July 6, 2022
    Publication date: October 20, 2022
    Applicant: Xiamen Tianma Microelectronics Co., Ltd.
    Inventors: Qingjun LAI, Yihua ZHU
  • Publication number: 20220180836
    Abstract: A display panel includes a first display region and a second display region. The light transmittance of the first display region is greater than the light transmittance of the second display region. The first display region includes a plurality of first sub-pixels. At least one of the first sub-pixels includes an electrode group. The electrode group includes a first electrode and a second electrode. In the first direction, the orthographic projection of the first electrode at least partially overlaps the orthographic projection of the second electrode. The first direction is parallel to the light-emitting surface of the display panel. In the stage of capturing, the voltage difference between the first electrode and the second electrode is greater than zero volts. The phase of a voltage difference of the first electrode to the second electrode is reversed as a frame is reversed.
    Type: Application
    Filed: February 25, 2022
    Publication date: June 9, 2022
    Applicant: Xiamen Tianma Microelectronics Co., Ltd.
    Inventors: Linyan GUAN, Hailiang WANG, Yaying LI, Weipeng WANG, Suxia XU, Junyi LI
  • Publication number: 20220100044
    Abstract: Provided are a display panel, a display device, and a mask. The display panel includes an array substrate. The array substrate includes a base substrate and first wires and second wires located on one side of the base substrate. The orthographic projections of the first wires on a plane where the base substrate is located intersect the orthographic projections of the second wires on the plane where the base substrate is located; and wire widths of the first wires at intersections are smaller than at least part of wire widths of the first wires at positions other than the intersections, and/or wire widths of the second wires at intersections are greater than at least part of wire widths of the second wires at positions other than the intersections.
    Type: Application
    Filed: December 13, 2021
    Publication date: March 31, 2022
    Applicant: Xiamen Tianma Microelectronics Co., Ltd.
    Inventors: Kunfeng ZHANG, Zhuo DENG, Hao WU, Poping SHEN
  • Patent number: 9772707
    Abstract: A touch screen and fabrication method is provided. The touch screen includes a transparent substrate having a display region and a non-display region; a first polarizing film formed on the transparent substrate; and a second polarizing film formed on the first polarizing film. The first polarizing film includes a first region having a first polarization axis direction, and the first region is located in the non-display region along a vertical direction of the transparent substrate. The second polarizing film includes a second region having a second polarization axis direction, and the second region is located in the non-display region along the vertical direction of the transparent substrate. Further, the first polarization axis direction of the first region is perpendicular to second polarization axis direction of the second region.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: September 26, 2017
    Assignees: XIAMEN TIANMA MICROELECTRONICS CO., LTD., TIANMA MICROELECTRONICS CO., LTD.
    Inventors: Xiaomin Liu, Ting Zhou
  • Publication number: 20140175387
    Abstract: An OLED is disclosed which includes an anode, a hole transport layer, a light emitting layer, an electron transport layer, and a cathode. The light emitting layer includes a first phosphorescent light emitting layer, a blue fluorescent light emitting layer, and a second phosphorescent light emitting layer, which are stacked along a direction from the anode to the cathode. The first phosphorescent light emitting layer includes a material capable of conducting holes and blocking electrons. The second phosphorescent light emitting layer includes a material capable of conducting electrons and blocking holes. The blue fluorescent light emitting layer includes a material capable of conducting both holes and electrons. With the phosphorescent light emitting layers having a function of restricting charges, the exciton recombination zone is constrained in the blue fluorescent light emitting layer.
    Type: Application
    Filed: May 20, 2013
    Publication date: June 26, 2014
    Applicant: Xiamen Tianma Microelectronics Co., Ltd.
    Inventor: Wenjing Lin
  • Publication number: 20140175388
    Abstract: An organic light emitting diode is disclosed. The organic light emitting diode includes an anode, a hole transport layer, a light emitting layer, an electron transport layer, and a cathode. The light emitting layer includes a first phosphorescent light emitting layer, a first isolation layer, a blue fluorescent light emitting layer, a second isolation layer, and a second phosphorescent light emitting layer, which are stacked along a direction from the anode to the cathode. The first isolation layer is configured to conduct holes and to block electrons, and the second isolation layer is configured to conduct electrons and to block holes. The exciton recombination zone is constrained in the blue fluorescent light emitting layer, thus improving the light emitting efficiency and light stability of the organic light emitting diode.
    Type: Application
    Filed: May 20, 2013
    Publication date: June 26, 2014
    Applicant: Xiamen Tianma Microelectronics Co., Ltd.
    Inventor: Wenjing Lin