Patents Assigned to Shanghai Tianma AM-OLED Co., Ltd
  • Patent number: 10912212
    Abstract: A display device is provided. The display device includes a flexible display panel having a flattened state and a folded state, a support mechanism located on a non-display surface side of the flexible display panel, two rotation mechanisms, and two telescopic mechanisms located on a side of the support mechanism facing away from the flexible display panel. The support mechanism includes two first support parts at two sides and one second support part in middle. The rotation mechanisms are located on a side of the second support part facing away from the flexible display panel. Each telescopic mechanism includes a traction part and a winding part. When the flexible display panel is in the flattened state, the winding parts are wound around the rotation mechanisms. When the flexible display panel is in the folded state, the winding parts are pulled out by the traction parts.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: February 2, 2021
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventor: Xingchen Qian
  • Patent number: 10909950
    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: September 21, 2018
    Date of Patent: February 2, 2021
    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: 10910604
    Abstract: The disclosure discloses an organic light-emitting display panel, a method for adjusting color temperature thereof, and a display device, and the organic light-emitting display panel includes: an underlying substrate, and a plurality of light-emitting elements arranged on the underlying substrate; each of the light-emitting elements includes a first electrode, a first light-emitting layer, a second electrode, a second light-emitting layer, and a third electrode arranged on the underlying substrate in that order in a light exit direction of the organic light-emitting display panel, where a wavelength of emitted light from the first light-emitting layer is greater than a wavelength of emitted light from the second light-emitting layer; and the first electrode, the second electrode, and the third electrode are connected respectively with different voltage signal terminals.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: February 2, 2021
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Shuang Cheng, Jinghua Niu, Xiangcheng Wang, Yuji Hamada, Angran Zhang, Run Yang
  • Patent number: 10896643
    Abstract: A current detection method for a pixel circuit, a display panel and a display device are provided, for implementing both a compensation for the threshold voltage Vth of the drive transistor and a compensation for the aging of the light emitting element organic light emitting diode (OLED) by controlling to turn on or turn off the first switch transistor and the second switch transistor, and by acquiring the drive current of the drive transistor and the compensation current of the light emitting element, thus the brightness differences among pixels are compensated, thereby avoiding the problem of non-uniform display brightness and poor image uniformity.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: January 19, 2021
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Yue Li, Gang Liu
  • Patent number: 10892306
    Abstract: A display panel includes a pixel defining layer, light-emitting unit, first support post, and touch layer. The light-emitting unit includes first electrode, light-emitting layer, and second electrode. The first support post is located between the pixel defining layer and the first electrode in direction perpendicular to display panel, and is located in non-aperture region of the pixel defining layer. The first electrode covers the light-emitting layer and the first support post. The touch layer is located at a side of the first electrode away from the pixel defining layer, and includes hollow portion, first portion and second portion that are mutually connected. In direction perpendicular to the display panel, both first portion and hollow portion overlap first support post, second portion does not overlap first support post. Overlapping portion of first portion and first supporting post has smaller area than first supporting post. A display device is also provided.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: January 12, 2021
    Assignee: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Yueting Fang, Lijing Han
  • Publication number: 20200410926
    Abstract: Provided is an organic light-emitting display panel including: a first pixel driving circuit driving a first sub-pixel and including first driving transistors, and a second pixel driving circuit driving a second sub-pixel and including one or more second driving transistors. An operating current of the first sub-pixel at a preset grayscale is n times an operating current of the second sub-pixel at the preset grayscale, n?1.5. The first driving transistor includes first and second driving sub-transistors. The first driving sub-transistor has a gate electrode electrically connected to a gate electrode of the second driving sub-transistor, a first electrode electrically connected to a first electrode of the second driving sub-transistor, and a second electrode electrically connected to a second electrode of the second driving sub-transistor. The number of the one or more second driving transistors is smaller than the number of the first driving transistors.
    Type: Application
    Filed: December 12, 2019
    Publication date: December 31, 2020
    Applicant: Shanghai Tianma AM-OLED Co.,Ltd.
    Inventors: Yue LI, Xingyao ZHOU, Mengmeng ZHANG, Shuai YANG, Zhi LIU, Zhe ZHAO
  • Publication number: 20200410916
    Abstract: The present disclosure provides a driving method of a gate driving circuit. The driving method includes: outputting, by a plurality of shift register units of a shift register, signals sequentially, the plurality of shift register units being cascaded; determining, by a detection module, whether the plurality of shift register units has an abnormality according to one or more signals outputted from at least a part of the plurality of shift register units, and issuing a scan control command when it is determined that the plurality of shift register units has the abnormality; and controlling, by a scan control module, the shift register to perform forward scanning and reverse scanning under the scan control command.
    Type: Application
    Filed: November 5, 2019
    Publication date: December 31, 2020
    Applicant: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Junting OUYANG, Boquan LIN, Kerui XI, Xiangzi KONG, Bojia LV
  • Publication number: 20200411597
    Abstract: A display panel includes a pixel defining layer, light-emitting unit, first support post, and touch layer. The light-emitting unit includes first electrode, light-emitting layer, and second electrode. The first support post is located between the pixel defining layer and the first electrode in direction perpendicular to display panel, and is located in non-aperture region of the pixel defining layer. The first electrode covers the light-emitting layer and the first support post. The touch layer is located at a side of the first electrode away from the pixel defining layer, and includes hollow portion, first portion and second portion that are mutually connected. In direction perpendicular to the display panel, both first portion and hollow portion overlap first support post, second portion does not overlap first support post. Overlapping portion of first portion and first supporting post has smaller area than first supporting post. A display device is also provided.
    Type: Application
    Filed: November 13, 2019
    Publication date: December 31, 2020
    Applicant: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Yueting FANG, Lijing HAN
  • Publication number: 20200411769
    Abstract: The present disclosure relates to the field of organic electroluminescence materials and particularly relates to a compound and an organic light emitting display device. The compound has a structure represented by Formula (I): and, m, n, p, q, r, s, u, and v are each independently selected from 0 or 1, at least one of r and s is 1, at least one of u and v is 1, L1, L2, L3, and L4 are each independently selected from substituted or unsubstituted C6-C40 aryl, or substituted or unsubstituted C3-C40 heterocyclyl, and A1, A2, A3, and A4 each are independently selected from an electron acceptor unit.
    Type: Application
    Filed: October 1, 2019
    Publication date: December 31, 2020
    Applicant: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Wei GAO, Ying LIU, Lei ZHANG, Wenpeng DAI, Jinghua NIU, Gaojun HUANG
  • Publication number: 20200411558
    Abstract: The present disclosure provides a display panel. The display panel includes: data lines located in the display area, arranged in a first direction, extending in a second direction, and including first and second data lines, and a cross-voltage range of the first data line being smaller than that of the second data line; and fanout traces located in the fanout area and including first and second fanout traces located between first and second edges, and the first fanout trace being connected to the first data line and the second fanout trace being connected to the second data line. A length of the first edge is longer than a length of the second edge, the first edge and the second edge are oppositely arranged in the second direction, and a line width d1 of the first fanout trace is smaller than a line width d2 of the second fanout trace.
    Type: Application
    Filed: November 12, 2019
    Publication date: December 31, 2020
    Applicant: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Mengmeng ZHANG, Xingyao ZHOU, Yue LI, Shuai YANG
  • Publication number: 20200407383
    Abstract: The present disclosure relates to the field of organic electroluminescence, in particular to a compound, an organic electroluminescence device and a display device. The compound has a structure shown in a formula (I): and X is selected from O atom or S atom; X1-X8 are each independently selected from C atoms or N atoms, and at least one of X1-X8 is N atoms; A and B are each independently selected from any one or more of the substituted or unsubstituted C6-C40 aryl, and substituted or unsubstituted C4-C40 heteroaryl; R1 is selected from C1-C9 alkyl, substituted or unsubstituted C6-C18 aryl, substituted or unsubstituted C4-C30 heteroaryl.
    Type: Application
    Filed: October 3, 2019
    Publication date: December 31, 2020
    Applicant: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Wenpeng DAI, Wei Gao, Lei Zhang, Jinghua Niu, Ying Liu, Ping An
  • Patent number: 10879320
    Abstract: An organic light-emitting display panel has a display region including a fingerprint recognition region and light-emitting devices for displaying image, the display panel includes a driving device layer, an anode layer, a pixel definition layer, an organic light-emitting layer, and a cathode layer sequentially stacked; and an optical fingerprint recognition sensor located in the fingerprint recognition region and located at a side of the driving device layer away from the anode layer; the pixel definition layer includes sub-pixel openings corresponding to the light-emitting devices, each light-emitting device includes an anode corresponding to one sub-pixel opening, the anode being located in the anode layer and overlapping with a corresponding sub-pixel opening, the organic light-emitting layer is located in each sub-pixel opening, and the cathode layer overlaps with each sub-pixel opening; in the fingerprint recognition region, at least part of the light-emitting devices each have an anode being a transpare
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: December 29, 2020
    Assignee: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Pengjuan Zhu, Zhiyong Xiong, Xu Lu
  • Patent number: 10878752
    Abstract: A pixel driving circuit includes a first power signal terminal and a second power signal terminal; a driving transistor including a gate electrode connected to a first node, a first end connected to a second node, and a second end connected to a third node; a light-emitting component, connected in series between a fourth node and the second power signal terminal; a first initialization unit including a first end connected to the first node, a second end connected to a first initialization signal terminal, and a control terminal connected to a first control signal terminal; and a second initialization unit including a first end connected to the first node, a second end connected to a second initialization signal terminal, and a control terminal connected to a second control signal terminal. In a same timeframe, polarities of the voltage signals at the first and second initialization signal terminals are opposite.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: December 29, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO.,LTD.
    Inventors: Yue Li, Xingyao Zhou, Mengmeng Zhang
  • Patent number: 10862061
    Abstract: Provided is an organic light-emitting display panel, including an array substrate and an organic light-emitting component. The array substrate includes a plurality of driving elements, and the organic light-emitting component is arranged to be associated with the driving element. The organic light-emitting component includes an anode and a cathode, and an organic functional layer therebetween. The organic functional layer includes an organic light-emitting layer, and an electron transmission region between the cathode and the organic light-emitting layer. The electron transmission region is doped with a first dopant comprising alkaline earth metal or rare earth metal elements. The electron transmission region includes first and second electron transmission layers. The doping concentrations C1, C2 of the first dopant in the first and second electron transmission layers satisfy: 0?C2<C1. The electron transmission region can be at the same time matched with the cathode and the organic light-emitting layer.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: December 8, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Weili Qiao, Jinghua Niu, Xiangcheng Wang
  • Patent number: 10854124
    Abstract: A display panel has a display area and a non-display area surrounding the display area. The display area has a first side and a second side opposite to the first side, and includes: a hollow area having first and second edges; and first to fourth display areas. The display panel includes: a driving chip arranged in the non-display area close to the first side; first data lines arranged in the first display area; second data lines arranged in the second display area; third data lines arranged in the third display area; and fourth data lines arranged in the fourth display area. The first edge is close to the driving chip and the second edge is away from the driving chip, and each second signal line is connected to at least two third data lines through a signal switching circuit.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: December 1, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Yang Yang, Shuo Tang, Bojia Lv, Xiangzi Kong, Jun Li
  • Publication number: 20200373371
    Abstract: A display panel and a display apparatus are provided. The display panel includes a display region and a non-display region surrounding the display region. The non-display region includes a step region, a left border and a right border that are adjacent to the step region, and an upper border arranged opposite to the step region. The left border, the right border, the upper border, and the step region surround the display region. The left border and the right border each include an encapsulation region. The encapsulation region includes a sealant and a reflective metal layer that are at least partially overlapped with each other. The step region includes a ground metal line, and the ground metal line is connected to the reflective metal layer through an electrostatic consumption resistance portion.
    Type: Application
    Filed: November 1, 2019
    Publication date: November 26, 2020
    Applicant: Shanghai Tianma AM-OLED Co.,Ltd.
    Inventors: Haimin Liu, Zhiyong Xiong, Liujing Fan
  • Patent number: 10847740
    Abstract: An organic light-emitting display panel includes an array substrate, a plurality of driving elements in the array substrate, and an organic light-emitting component corresponding to the driving elements, where the organic light-emitting component includes an anode, a cathode, and an organic functional layer between the anode and the cathode, the organic functional layer includes a light-emitting layer and a first electron transport layer between the light-emitting layer and the cathode, the organic light-emitting device includes a first organic light-emitting part containing a first color light-emitting layer, a second organic light-emitting part containing a second color light-emitting layer, and a third organic light-emitting part containing a third color light-emitting layer, a second electron transport layer is disposed between the first color light-emitting layer and the cathode, and a first and a second hole transport layers are disposed between the anode and the second and the third color light-emittin
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: November 24, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Xiangcheng Wang, Jinghua Niu, Ding Li, Ping An
  • Patent number: 10847237
    Abstract: The present disclosure provides a shift register, a driving circuit, a display device and a driving method for improving the accuracy of an output signal. The first input unit of the shift register is configured to provide a signal at a first fixed potential terminal to a first node, a signal at the input signal terminal to the first node and the signal at the input signal terminal to the first node. A second input unit of the shift register is configured to provide the signal at the input signal terminal to the second node and a signal at the first fixed potential terminal to the second node. An output unit of the shift register is configured to provide a signal at the first clock signal terminal to an output signal terminal of the shift register and a signal at a second fixed potential terminal to the output signal terminal.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: November 24, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Dongxu Xiang, Yue Li, Renyuan Zhu, Yana Gao, Xingyao Zhou, Zhonglan Cai, Juan Zhu, Yilin Xu, Gaojun Huang
  • Patent number: 10839192
    Abstract: The present disclosure provides a display panel and a display device. The display panel has a display area and non-display area. The display panel includes a plurality of display units arranged in an array within the display area; and a plurality of pixel driving circuits correspondingly connected to the plurality of display units. The display area includes a fingerprint recognition region. The plurality of display units disposed within the fingerprint recognition region includes at least one first display unit. The plurality of pixel driving circuits includes at least one first pixel driving circuit electrically connected to the at least one first display unit. Each of the at least one first pixel driving circuit includes a storage capacitor and a plurality of thin film transistors. The storage capacitor and/or at least one of the plurality of thin film transistors are located within the non-display area.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: November 17, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Xian Chen, Xingxing Yang, Lijing Han, Chunpeng Zhang, Yongzhi Wang, Tao Peng
  • Publication number: 20200357875
    Abstract: An organic light emitting display panel and a display device are provided. The organic light emitting display panel includes: an anode power wire, the anode power wire including a first extension segment and a second extension segment, a head end of the first extension segment being electrically connected to the driving power supply, a tail end of the first extension segment being electrically connected to a head end of the second extension segment; each sub-pixel includes a light emitting device and two pixel driving circuits, anode connection terminals of the two pixel driving circuits are electrically connected to an anode of the light emitting device; anode power wire connection terminals of the two pixel driving circuits are electrically connected to the first extension segment and the second extension segment, respectively.
    Type: Application
    Filed: November 5, 2019
    Publication date: November 12, 2020
    Applicant: Shanghai Tianma AM-OLED Co., Ltd.
    Inventor: Yaolin WANG