Patents Assigned to Shanghai Tianma AM-OLED Co., Ltd
  • Patent number: 11289054
    Abstract: The present disclosure provides an emission controller, a driving method thereof, and a display device. The emission controller includes a first processing module, a second processing module, a third processing module, an output module and a shift control module. The first processing module generates a first signal in response to a first control signal, a second control signal and a second signal. The second processing module generates a second signal in response to the first control signal and the first signal. The third processing module generates third and fourth signals in response to the second control signal, the second and first signals. The output module provides emission control signal in response the first and fourth signal. The shift control module provides a shift control signal in response to the first and fourth signal, or provides a shift control signal in response to the first and third signal.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: March 29, 2022
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Yana Gao, Xingyao Zhou, Yue Li, Dongxu Xiang, Renyuan Zhu, Zhonglan Cai, Juan Zhu, Gaojun Huang, Yilin Xu
  • Patent number: 11276364
    Abstract: Provided are a shift register, a driving method thereof, a driving control circuit and a display device. A first reference signal of a first reference signal end may be provided to a first node through an input sub-circuit. A first node signal of the first node and a second node signal of a second node may be controlled through a driving control sub-circuit. The first reference signal of the first reference signal end may be provided to a signal output end and a second reference signal of a second reference signal end may be provided to the signal output end through an output sub-circuit. Through the arrangement of a first capacitor electrically connected between a second clock signal end and the first node, a level of the first node may be kept stable through the first capacitor. A second node signal of the second node and a third node signal of a third node may be controlled through a protection sub-circuit.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: March 15, 2022
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventor: Yue Li
  • Publication number: 20220075467
    Abstract: A touch display panel and a touch display device are provided, relate to the field of display technology. In an embodiment, the touch display panel includes a plurality of first touch electrode units and a plurality of second touch electrode units. In an embodiment, each of the first touch electrode units includes first touch electrodes and first connection portions alternately arranged in a first direction. In an embodiment, each of the first touch electrodes includes at least one first touch electrode sub-unit that includes a plurality of first electrode sub-groups. In an embodiment, each of the first electrode sub-groups includes at least one first sub-electrode. In an embodiment, in each of the at least one first touch electrode sub-unit, the first sub-electrodes of two adjacent first electrode sub-groups have gradually increasing lengths and gradually decreasing widths in a direction from one of the first connection portions closest to the first touch electrode sub-unit to the first touch electrode.
    Type: Application
    Filed: November 18, 2021
    Publication date: March 10, 2022
    Applicant: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Qibing WEI, Min CHEN, Xinzhao LIU
  • Patent number: 11263960
    Abstract: Disclosed are a display panel and a driving method. The display panel includes: a substrate, sub-pixels and a switch module. Each sub-pixel includes a pixel drive circuit and a light-emitting element. The pixel drive circuit includes an initialization transistor and a drive transistor, each including a first electrode, a second electrode, and a gate electrode; the first electrode of the initialization transistor is electrically connected to the gate electrode of the drive transistor. The drive transistor provides a drive current to the light-emitting element, the second electrodes of the initialization transistors of at least two sub-pixels are connected to an output terminal of the same switch module. An input terminal of the switch module is electrically connected to an initialization signal terminal. The switch module transfers an initialization signal to the second electrode of the initialization transistor.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: March 1, 2022
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Nana Xiong, Jujian Fu
  • Patent number: 11263958
    Abstract: A pixel driving circuit and a driving method thereof, a display panel and a display device are provided. A second light emitting control device controls, in a case that a first light emitting control device controls a floating signal to be transmitted to a gate of a drive transistor for a first predetermined time period, a driving current to be transmitted to a light emitting element, and the light emitting element can emit light. In this way, the light emitting element can be driven to emit light after a fluctuation period of a voltage of the gate of the drive transistor during which the floating signal is initially inputted to the gate of the drive transistor is passed, improving the stability of the pixel driving circuit in driving the light emitting element.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: March 1, 2022
    Assignee: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Yingteng Zhai, Chenhang Sheng
  • Publication number: 20220051633
    Abstract: Provided are a pixel circuit and a driving method, a display panel, and a display device. The pixel circuit includes a drive transistor, a node control device, a data write device, a light emission control device, a light-emitting element, a reset signal terminal, a data signal terminal, and a first power supply terminal. The node control device is configured to: in a reset stage, store a reset signal of the reset signal terminal and reset a gate of the drive transistor; and in a light emission stage, control a power signal of the first power supply terminal to be written to the gate of the drive transistor. The data write device is configured to, in a data write stage, write a data signal of the data signal terminal to the gate of the drive transistor and compensate a threshold voltage of the drive transistor to the gate.
    Type: Application
    Filed: November 1, 2021
    Publication date: February 17, 2022
    Applicant: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Yue LI, Xingyao Zhou, Mengmeng Zhang, Gaojun Huang, Ling Xu
  • Patent number: 11244587
    Abstract: A flexible display panel and a flexible display device are described. The flexible display panel includes a bending region, a non-bending region. A number of deformation detection units are disposed in the bending region. The deformation detection units each includes a first electrode, a piezoelectric (PZT) material function layer and a second electrode which are sequentially stacked in a direction perpendicular to a light-emitting surface of the flexible display panel. The density of the PZT units and PZT function layer thickness may vary depending on their distance from the bending axis.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: February 8, 2022
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Junting Ouyang, Baiquan Lin, Kerui Xi, Xiangzi Kong
  • Patent number: 11241961
    Abstract: Provided are a vehicle instrument, a display method, and a vehicle speed monitoring display system. The vehicle instrument includes a display panel including an indicator structure used together with a scale on the dial for reading; a dial exposed by the display panel; and an actuating mechanism connected to the display panel and configured to control a movement of the display panel relative to the dial. The vehicle instrument has a first state, in which the display panel and the dial are in a first positional relationship, the display panel displays a first pattern region, and the first pattern region and the dial are in a second positional relationship; and a second state, in which the display panel and the dial are in a third positional relationship, the display panel displays the first pattern region, and the first pattern region and the dial are in the second positional relationship.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: February 8, 2022
    Assignee: SHANGHAI TIANMA AM-OLED CO, LTD.
    Inventors: Shuang Cheng, Jinghua Niu, Mingzhi Dai, Yinhe Liu, Yibin Xing, Ruixuan Dang, Tiezhen Gao
  • Patent number: 11239448
    Abstract: Provided is an organic light-emitting display panel, including: a thin film transistor layer provided in a display area; an organic light-emitting layer provided in the display area and including light-emitting pixels; a microlens array layer provided in the display area and including microlenses corresponding to the light-emitting pixels; a refractive index matching layer provided in the display area; and a filling layer provided in the non-display area. The refractive index matching layer and the microlens array layer have different refractive indexes. Each microlens includes a first surface that is in contact with the refractive index matching layer. The first surface is a curved surface protruding towards one of the microlens array layer and the refractive index matching layer, which has a smaller refractive index. A material of the filling layer is same as at least one of materials of the microlens array layer and the refractive index matching layer.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: February 1, 2022
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Guofeng Zhang, Quanpeng Yu
  • Patent number: 11228018
    Abstract: An organic light-emitting display panel and a fabrication method thereof are provided. The organic light-emitting display panel comprises a substrate; an organic light-emitting device disposed on a side of the substrate, wherein the organic light-emitting device has a first side facing the substrate and an opposing side; and an encapsulation layer disposed on the opposing side of the organic light-emitting device. The encapsulation layer includes at least one organic encapsulation layer, and the at least organic encapsulating layer has a polymer network of cross-linked polyorganosiloxane.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: January 18, 2022
    Assignees: Shanghai Tianma AM-OLED Co., Ltd., Tianma Micro-Electronics Co., Ltd.
    Inventors: Jian Jin, Congyi Su
  • Patent number: 11222562
    Abstract: A display panel, a method for detecting the same, and a display device are provided. The display panel has a display area provided with data lines therein, and a non-display area provided with fan-out lines, a crack detection line, multiplexers, a first crack detection switch, and a crack detection control signal line therein. The crack detection line includes first and second detection sub-lines connected to each other. The first detection sub-line and the second detection sub-line are respectively connected to an input terminal of the first crack detection switch and a crack detection signal terminal. An output terminal of the demultiplexer is electrically connected to n data lines. An input terminal of the first demultiplexer is connected to an output terminal of the first crack detection switch and one fan-out line, and a control terminal of the first crack detection switch is connected to the crack detection control signal line.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: January 11, 2022
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Yana Gao, Xingyao Zhou, Xinzhao Liu, Zhi Liu
  • Patent number: 11217575
    Abstract: Disclosed are a display panel and a display device. The display panel includes: a substrate and a pixel array, where the pixel array is located on a side of the substrate, and the pixel array includes at least one inorganic insulating layer, and an edge of the inorganic insulating layer are located in the non-display area; a first repair layer, where the first repair layer is located in the non-display area, the first repair layer is located on a side of the inorganic insulating layer facing away from the substrate, the first repair layer covers the edge of the inorganic insulating layer, the first repair layer is in contact with the substrate, and the first repair layer has a repair function; and a light source, where the light source is located in the non-display area and configured to provide light to the first repair layer to trigger the repair function.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: January 4, 2022
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventor: Yingteng Zhai
  • Patent number: 11217609
    Abstract: Array substrates, motherboards of array substrates, display panels and method for forming display panels are provided. The array substrate includes sub-pixels, data lines, multiple-channel distribution units, X first switch control lines, test units and N second switch control lines. The first output terminals of the X first switch elements of a same multiple distribution unit are connected to the X data lines of the same data line group. The first control terminals of the X first switch elements of each multiple-channel distribution unit are connected to the X first switch control lines. The second output terminals of the second switch elements in a same test unit are electrically connected to the first input end of the first switch elements in the same multiple-channel distribution unit. The second control terminals of the N second switch elements in each test unit are connected to the N second switch control lines.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: January 4, 2022
    Assignee: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Zhuan Gao, Xinzhao Liu, Mengmeng Zhang, Xingyao Zhou, Yana Gao
  • Patent number: 11215857
    Abstract: Provided are a double-sided display panel and display device. The double-sided display panel includes a light-emitting module, a first conversion panel and a second conversion panel, where the light-emitting module is placed between the first conversion panel and the second conversion panel, and the light-emitting module may provide light sources for the first conversion panel and the second conversion panel to cause the first conversion panel and/or the second conversion panel to display an image.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: January 4, 2022
    Assignee: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Xue Wang, Zhiyong Xiong, Liujing Fan, Ping An
  • Patent number: 11210980
    Abstract: A detection method for a display panel, a display panel and a display device are provided. The display panel has a display area and a non-display area, and one data line in the display area is electrically connected to at least one sub-pixel; and the non-display area includes at least one signal line electrically connected to at least one data line through a switch unit. The method includes: providing a pulse signal to the signal line; controlling the switch unit to be turned on once in a period of at least one signal hopping on the signal line, to write a data signal into the data line through the signal line, where the data signal is the pulse signal truncated in the period of the signal hopping of the pulse signal; and controlling the sub-pixel connected to the data line to emit light.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: December 28, 2021
    Assignee: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Yana Gao, Xingyao Zhou, Mengmeng Zhang
  • Publication number: 20210399023
    Abstract: An array substrate, a display panel, and a display apparatus are provided. The array substrate includes a substrate and a first thin-film transistor located on the substrate. In an embodiment, the first thin-film transistor includes a channel and a gate electrode. In an embodiment, an orthographic projection of the gate electrode on the substrate overlaps with an orthographic projection of the channel on the substrate. In an embodiment, the gate electrode comprises a first zone and a second zone that are arranged in a first direction. In an embodiment, the channel overlapping with the first zone in a direction perpendicular to the substrate has a total width W1 in a second direction perpendicular to the first direction, the channel overlapping with the second zone in a direction perpendicular to the substrate has a total width W2 in the second direction, and W1/W2?3.
    Type: Application
    Filed: September 3, 2021
    Publication date: December 23, 2021
    Applicant: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Huiping CHAI, Lijing HAN, Guobing WANG
  • Patent number: 11200847
    Abstract: A display panel includes multiple scanning lines, sub-pixels and a scanning drive circuit. The sub-pixels include first sub-pixels, second sub-pixels and third sub-pixels. Each scanning line connects to sub-pixels of one same type of emission. The first sub-pixels include a first group and a second group, and the third sub-pixels include a first group and a second group. The scanning drive circuit is used for driving a fraction of the sub-pixels in one frame. In odd frames, only first group of the first sub-pixels, and the third sub-pixels, and the second sub-pixels are driven to emit light in odd frames. In even frames, only second group of the first sub-pixels and the third sub-pixels, and the second sub-pixels are driven to emit light. When the display screen is refreshed, the number of the sub-pixels driven to emit light is reduced, and power of charging and discharging of the sub-pixels is reduced.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: December 14, 2021
    Assignee: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Nana Xiong, Tianyi Wu
  • Publication number: 20210384272
    Abstract: Provided are an organic light-emitting display panel and an organic light-emitting display device. The organic light-emitting display panel has a display area and a non-display area surrounding the display area and includes a base substrate, an organic light-emitting layer, a pixel definition layer, and a microlens layer that are located in the display area. The organic light-emitting layer is located at a side of the base substrate and includes light-emitting units. The pixel definition layer includes first openings, and each light-emitting unit is located in one of the first openings. The microlens layer is located at a side of the pixel definition layer facing away from the base substrate and includes at least one first microlens. An orthogonal projection of the first microlens on the base substrate is located between orthogonal projections of two adjacent first openings on the base substrate.
    Type: Application
    Filed: July 28, 2020
    Publication date: December 9, 2021
    Applicant: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Guofeng ZHANG, Junqiang WANG, Jiaxin LI, Quanpeng YU
  • Publication number: 20210384473
    Abstract: Provided is an organic light-emitting display panel, including: a thin film transistor layer provided in a display area; an organic light-emitting layer provided in the display area and including light-emitting pixels; a microlens array layer provided in the display area and including microlenses corresponding to the light-emitting pixels; a refractive index matching layer provided in the display area; and a filling layer provided in the non-display area. The refractive index matching layer and the microlens array layer have different refractive indexes. Each microlens includes a first surface that is in contact with the refractive index matching layer. The first surface is a curved surface protruding towards one of the microlens array layer and the refractive index matching layer, which has a smaller refractive index. A material of the filling layer is same as at least one of materials of the microlens array layer and the refractive index matching layer.
    Type: Application
    Filed: July 28, 2020
    Publication date: December 9, 2021
    Applicant: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Guofeng ZHANG, Quanpeng YU
  • Publication number: 20210382584
    Abstract: A display panel and a display device are provided. The display panel includes first and second touch electrodes. The first touch electrode includes first touch sub-electrodes arranged along a first direction, an island electrode located between two adjacent first touch sub-electrodes, and a first connection portion. The island electrode and the first touch sub-electrodes are provided in a same layer. A first gap is formed between the island electrode and the first touch sub-electrode. The first connection portion connects the first touch sub-electrode and its adjacent island electrode. The first connection portion and the first touch sub-electrode are provided in different layers. The second touch electrode includes at least two second touch sub-electrodes provided along a second direction intersecting with the first direction, and a second connection portion connecting two adjacent second touch sub-electrodes. The second connection portion and the second touch sub-electrode are provided in different layers.
    Type: Application
    Filed: August 19, 2021
    Publication date: December 9, 2021
    Applicant: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Yu XIN, Lijing HAN, Qingxia WANG