Patents Assigned to TIANMA MICRO-ELECTRONICS CO., LTD
  • Patent number: 11963323
    Abstract: Provided are a display device and a method for controlling the same. The display device includes a flexible display screen and a control structure configured to control the flexible display screen to assume a folded state or an unfolded state. The control structure includes a guide rail assembly including guide rails. Two adjacent guide rails of the guide rails are slidably connected to each other, and the flexible display screen is unfolded along a first direction and folded along a second direction. A sliding direction of each of the guide rails is the same as the first direction or the second direction.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: April 16, 2024
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventor: Xiaoyin Zhang
  • Patent number: 11961477
    Abstract: A pixel driving circuit, a display panel and a driving method are provided. The pixel driving circuit includes: a first power signal terminal receiving a first voltage signal and a second power signal terminal receiving a second voltage signal; a driving transistor configured to provide a driving current in a light-emitting stage; a light-emitting component, connected in series between the driving transistor and the second power signal terminal and configured to emit light in response to the driving current; a light-emitting controller connected in series between the first power signal terminal and the light-emitting component; and a bias unit, electrically connected between the third node and a second output terminal of a light-emitting control circuit, and in response to a first control signal, configured to transmit a first signal outputted by the light-emitting control circuit to a third node to adjust a bias state of the driving transistor.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: April 16, 2024
    Assignees: Wuhan Tianma Micro-Electronics Co., Ltd., Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch
    Inventors: Mengmeng Zhang, Xingyao Zhou
  • Patent number: 11961464
    Abstract: A display panel and a display apparatus are provided. The display panel is connected to a data driver that outputs first and second data signals sequentially through an output terminal. First and second data lines are configured to receive the first and second data signals, respectively. First and second sub-pixels are connected to the first and second data lines, respectively. A first signal line crosses the first and second data lines to form overlapping portions. A gating circuit connects the output terminal to the first and second data lines. A shielding pattern overlaps with at least one overlapping portion. The shielding pattern is configured to receive a fixed potential when the output terminal of the data driver provides a data signal to the data line through the gating circuit.
    Type: Grant
    Filed: April 24, 2023
    Date of Patent: April 16, 2024
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Qian Wei, Shanglong Wang
  • Patent number: 11961483
    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: Grant
    Filed: April 27, 2023
    Date of Patent: April 16, 2024
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Nana Xiong, Jujian Fu
  • Patent number: 11955058
    Abstract: A display panel, a display device and a method for driving a display panel are provided. The display panel includes N types of display areas which includes an i-th type display area and a j-th type display area. The display panel includes M display parts which include a first display part and a second display part. The first display part includes at least one i-th type display area, and the second display part includes at least one i-th type display area. At least one j-th type display area is arranged between the i-th type display area included in the first display part and the i-th type display area included in the second display part. Light-emitting time periods of the i-th type display area and the j-th type display area at least partially do not overlap, to reduce the number of sub-pixels driven at the same time period.
    Type: Grant
    Filed: March 24, 2022
    Date of Patent: April 9, 2024
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Yingteng Zhai, Yuan Ding
  • Patent number: 11953784
    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: Grant
    Filed: April 25, 2023
    Date of Patent: April 9, 2024
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Zhanxiang Guo, Yumin Xu, Jianguo Bian, Jiantao Ren, Binbin Chang, Zhaoxing Gao, Weiyang Sun, Wanzhen Wang
  • Patent number: 11957012
    Abstract: Provided is a display panel, and the display panel includes a base substrate, a first signal line, a planarization layer, a light-emitting element and a pixel spacer layer. The first signal line is disposed on the base substrate, where the first signal line includes a first sub signal line and a second sub signal line which are electrically connected to each other and are disposed in different layers, and the first sub signal line is disposed on one side of the second sub signal line facing toward the base substrate. The planarization layer is disposed on one side of the first signal line facing away from the base substrate. The light-emitting element and the pixel spacer layer are disposed on one side of the planarization layer facing away from the base substrate. The planarization layer includes a first opening.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: April 9, 2024
    Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventor: Yong Yuan
  • Patent number: 11957011
    Abstract: A display panel and a display device are provided. The display panel includes a display region including a first region and a second region and a frame region. The display panel also includes a frame adhesive located in the second region, and a padding metal located in the second region. Along a direction perpendicular to a plane where the display panel is located, the padding metal at least partially overlaps the frame adhesive. In addition, the display panel includes a cathode signal line located in the first region. Moreover, the display panel includes a cathode layer located in the display region and connected to the cathode signal line. Further, the display panel includes at least one connecting part connected to the padding metal. The connecting part is located on a side of the padding metal adjacent to the first region, and is connected to the cathode signal line.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: April 9, 2024
    Assignees: Wuhan Tianma Micro-Electronics Co., Ltd., Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch
    Inventors: Zhuan Gao, Xinzhao Liu
  • Patent number: 11957027
    Abstract: A display panel and a display device are provided. The display panel includes a photosensitive array layer including a plurality of photosensitive units arranged in an array, a light-emitting function layer, and a color resist layer. The light-emitting function layer is disposed between the color resist layer and the photosensitive array layer. The color resist layer includes a first light-shielding layer and a plurality of first color resist units. The first light-shielding layer contains a plurality of first openings and a plurality of second openings. A first opening of the plurality of first openings corresponds to a photosensitive unit of the plurality of photosensitive units, and a first color resist unit of the plurality of first color resist units at least covers a second opening of the plurality of second openings. At least one of the plurality of second openings is connected with the first opening.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: April 9, 2024
    Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventor: Yaodong Wu
  • Patent number: 11957024
    Abstract: An OLED panel includes a display area and a non-display area around the display area; a substrate, a driving device layer and a light emitting device layer arranged in the display area, an encapsulation layer covering the light emitting device layer; and a touch layer located on a side of the encapsulation layer facing away from the substrate, the touch layer comprising a touch electrode and a touch wire. The non-display area includes an electrostatic discharge portion, the electrostatic discharge portion is made of a conductive material and is located on a side of the encapsulation layer facing away from the substrate. The non-display area includes a blocking portion, the blocking portion is arranged around the display area, and is located between the substrate and the encapsulation layer. The electrostatic discharge portion is located on a side of the touch wire facing away from the display area.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: April 9, 2024
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Chujie Yu, Jiazhu Zhu, Shanfu Yuan, Tao Peng, Ruiyuan Zhou
  • Publication number: 20240114737
    Abstract: A display panel includes data lines and a first wiring layer in a display region, and a cover layer located at a side of the first wiring layer facing toward a light-exiting direction of the display panel. The first wiring layer includes data connection lines and wiring segments. The data connection line is connected to a data lines and transmits a data voltage provided in the pad region to the data line. One wiring segment is spaced apart from the data connection line by a first breaking. The cover layer includes first cover portions and second cover portions. Along a direction perpendicular to a plane of the display panel, the first cover portions overlap the first breakings, and the second cover portions overlap the data connection lines and the wiring segments. The first cover portion has a thickness smaller than a thickness of the second cover portion.
    Type: Application
    Filed: December 14, 2023
    Publication date: April 4, 2024
    Applicant: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Qin YUE, Yangzhao MA
  • Publication number: 20240114738
    Abstract: A display panel and a display apparatus are provided, which relates to display technical field. In an embodiment, the display panel includes a display area and light transmission area. In an embodiment, the display area includes: signal lines arranged along first direction and extending along second direction; connecting lines configured to electrically connect signal lines located at two sides of light transmission area along second direction, wherein connecting lines include type-I connecting lines, and at least part of type-I connecting lines are located in display area; type-I connecting lines include edge connecting line which, as one of the type-I connecting lines, has maximum distance from light transmission area; and common lines including type-I common lines, wherein at least part of type-I common lines are located in display area, and part of type-I common lines are located at a side of edge connecting line adjacent to light transmission area.
    Type: Application
    Filed: December 15, 2023
    Publication date: April 4, 2024
    Applicant: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventor: Yuehua YANG
  • Patent number: 11950481
    Abstract: A display panel and a display device are provided in the present disclosure. The display panel includes a substrate and an array layer disposed on a side of the substrate; a light-emitting layer, where the light-emitting layer is on a side of the array layer away from the substrate and includes a plurality of light-emitting units; and a color filter layer. The color filter layer includes a light-blocking portion and a plurality of color resist units; the plurality of color resist units is disposed corresponding to the plurality of light-emitting units; at least two color resist units of a same color have different orthographic projection shapes on a same first plane; a first plane at least includes one of a first sub-plane and a second sub-plane; the first sub-plane is a plane perpendicular to the substrate; and the second sub-plane is a plane in parallel with the substrate.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: April 2, 2024
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Liang Hu, Ai Xiao, Linshan Guo
  • Patent number: 11950449
    Abstract: Provided are a display panel and a display device. The display panel includes a substrate, a display function layer, a first function layer, a scattering structure and a light shielding structure. The display function layer is located on a side of the substrate. The first function layer is located on a side of the display function layer facing away from the substrate. The scattering structure is located between the display function layer and the first function layer in a direction perpendicular to a plane where the substrate is located. The scattering structure is located in the non-light emitting region. The light shielding structure is located in the non-light emitting region. The light shielding structure at least overlaps the scattering structure in the direction perpendicular to the plane where the substrate is located.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: April 2, 2024
    Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventor: Chuanli Leng
  • Patent number: 11948505
    Abstract: Display panel and display device are provided. The display panel includes a plurality of subpixels. A subpixel of the plurality of subpixels includes a pixel circuit and a light emitting element that are electrically connected. The pixel circuit includes a first transistor. A first electrode of the first transistor is connected to a first reference voltage signal terminal. A second electrode of the first transistor is electrically connected to an anode of the light emitting element. In a light emitting retention stage of the subpixel of the plurality of subpixels, the first reference voltage signal terminal is connected to a negative potential signal or a ground potential signal. The plurality of subpixels includes at least a first subpixel and a second subpixel, and a color of the first subpixel is different from a color of the second subpixel.
    Type: Grant
    Filed: March 4, 2022
    Date of Patent: April 2, 2024
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Jiao Shi, Di Zhang
  • Patent number: 11940530
    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: Grant
    Filed: January 5, 2023
    Date of Patent: March 26, 2024
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Lu Lian, Feng Lu, Haochi Yu
  • Patent number: 11942047
    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: Grant
    Filed: April 27, 2023
    Date of Patent: March 26, 2024
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Nana Xiong, Jujian Fu
  • Patent number: 11941201
    Abstract: A display panel and a display device are provided. The display panel includes: at least one first touch line and at least one second touch line that are located in different layers; and a first dielectric layer located between the at least one first touch line and the at least one second touch line. The display panel has a first region and a second region, in the second region, one of the at least one first touch line is electrically connected to one of the at least one second touch line by passing the first dielectric layer. A thickness A of the first dielectric layer in the first region in a direction perpendicular to a plane of the display panel, and a thickness B of the first dielectric layer in the second region in the direction perpendicular to the plane of the display panel satisfy: A>B?0.
    Type: Grant
    Filed: June 2, 2022
    Date of Patent: March 26, 2024
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Zhe Li, Feng Lu
  • Patent number: 11942027
    Abstract: Provided are a display panel and a display device. The display panel includes a pixel circuit and a light-emitting element. The pixel circuit includes a data write module, a drive module and a compensation module. The drive module includes a drive transistor. The data write module is connected to an input terminal of the drive module; a first electrode of the compensation module is connected to an output terminal of the drive module, and a second electrode of the compensation module is connected to a control terminal of the drive module. The data write module includes a data write transistor and a bias transistor, the data write transistor is connected to a data signal input terminal and configured to transmit a data signal, and the bias transistor is connected to a bias signal input terminal and configured to transmit a bias signal.
    Type: Grant
    Filed: November 28, 2022
    Date of Patent: March 26, 2024
    Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventor: Yong Yuan
  • Publication number: 20240087533
    Abstract: Provided is a display panel. The display panel includes a pixel driving circuit including a drive transistor, a data write module, a light emission control module, a threshold compensation module and a bias adjustment module. The control terminal of the drive transistor is connected to the first node. The first terminal of the drive transistor is connected to a third node. The second terminal of the drive transistor is connected to a second node. The light emission control module is connected in series with the drive transistor and connected in series with a light-emitting element. The threshold compensation module is connected in series between the control terminal of the drive transistor and the second terminal of the drive transistor. The first terminal of the bias adjustment module is connected to a bias signal terminal. The second terminal is connected to the second terminal of the drive transistor.
    Type: Application
    Filed: November 27, 2023
    Publication date: March 14, 2024
    Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventors: Jieliang LI, Gaojun HUANG