Patents Assigned to Shanghai Tianma AM-OLED Co., Ltd
  • Patent number: 10504977
    Abstract: An organic light-emitting circuit structure having a temperature function includes an organic light-emitting diode which has an anode and a cathode opposite to each other; a driving transistor including a first electrode and a second electrode; the first electrode is a source electrode, the second electrode is a drain electrode; or, the first electrode is the drain electrode, the second electrode is the source electrode; a temperature sensitive resistor, which is electrically connected between the driving transistor and the light-emitting device or between the driving transistor and the voltage source. The temperature sensitive resistor increases a resistance value at sensing a temperature increase or decreases the resistance value at sensing a temperature decrease. As a result a current through the organic light-emitting diode stays compensated and stable, thereby ensuring that the organic light-emitting diode keeps emitting light normally under various temperature conditions.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: December 10, 2019
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Zhiyong Xiong, Duzen Peng, Jianjie Zhu
  • Patent number: 10503301
    Abstract: A touch display panel includes first touch electrodes arranged in a first direction and extending along a second direction, second touch electrodes arranged in the second direction and extending along the first direction, and sub-pixels; each first touch electrode comprises first electrode blocks arranged in the second direction, every two adjacent first electrode blocks are connected to each other, each second touch electrode comprises second electrode blocks made of metal, every two adjacent second electrode blocks are connected to each other by a bridge structure which is transparent and in the same layer as the second electrode blocks, an orthographic projection of the second electrode block on a plane of the touch display panel is enclosed within an orthographic projection of the non-aperture portion of the sub-pixel on the plane. A touch display device includes the touch display panel.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: December 10, 2019
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Qingxia Wang, Kaihong Huang, Min Chen, Gaojun Huang, Juan Zhu
  • Patent number: 10497895
    Abstract: An organic light-emitting display panel including: an array substrate, an organic light-emitting element placed on the array substrate and comprising light-emitting pixels, and an encapsulation layer placed on a side of the organic light-emitting element away from the array substrate; the encapsulation layer comprises a first inorganic encapsulation layer having a thickness 10 nm˜100 nm, a first interlayer bonding layer, and a first organic encapsulation layer along a direction away from the array substrate; refractive indexes of the first inorganic encapsulation layer, the first interlayer bonding layer, and the first organic encapsulation layer are n1, n2 and n3, respectively; the refractive index n2 decreases in gradient along a direction from the first inorganic encapsulation layer toward the first organic encapsulation layer, maximum and minimum refractive indexes of the first interlayer bonding layer are n21 and n22, respectively; n21>n1, n22<n3.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: December 3, 2019
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Longchang Jia, Congyi Su, Zhenying Li
  • Patent number: 10497879
    Abstract: Embodiments of the present invention disclose an organic light-emitting display panel and an organic light-emitting display device. The organic light-emitting display panel includes: a first electrode, a hole injection layer, a light-emitting layer and a second electrode that are stacked in turn; wherein, the material of the hole injection layer includes an organic material and a conductive metal oxide, or the hole injection layer is formed by stacking an organic material film layer and a conductive metal oxide film layer.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: December 3, 2019
    Assignees: Shanghai Tianma AM-OLED Co., Ltd., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Zhihong Lei, Jinghua Niu, Xiangcheng Wang, Lei Lv
  • Patent number: 10490136
    Abstract: A pixel circuit and a display device are provided. The pixel circuit includes a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a driving transistor, a first capacitor and a second capacitor. A threshold voltage of the driving transistor is compensated through a cooperation of the transistors and the capacitors in a source following manner, such that a driving current generated by the driving transistor for driving a light emitting element to emit light is independent from the threshold voltage of the driving transistor itself. In addition, the driving transistor and the anode of the light emitting element are reset through the cooperation of the transistors, thereby avoiding from grabbing a different threshold voltage after a gray scale transition, thus avoiding afterimages and insufficient brightness of the first frame after the gray scale transition.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: November 26, 2019
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Renyuan Zhu, Yue Li, Dongxu Xiang, Yana Gao, Xingyao Zhou
  • Patent number: 10482844
    Abstract: A method to improve display performance at edges of a circular display screen is provided. The method comprises determining an edge area and a central area of the circular display screen, the edge area surrounding the central area; along a direction from a geometric center of the circular display screen to the edge area of the circular display screen, dividing the edge area into n display regions each having a different luminance-level, where n is a positive integer larger than 1; and according to luminance of pixels in the central area and the luminance-level of each of the n display regions, adjusting the luminance of the pixels in each of the n display regions to corresponding target luminance. Along the direction from the geometric center to the edge area of the circular display screen, the corresponding target luminance of the pixels in the n display regions sequentially decreases.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: November 19, 2019
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Fangyun Lin, Hongling Wang, Zhiyong Xiong, Bojia Lv, Bozhang Sun
  • Patent number: 10483329
    Abstract: The present disclosure relates to a hole transporting material having a structure of formula (I). The present disclosure provides a hole transporting material having at least one fluorenyl ring and having one non-hydrogen substituent on at least one benzene ring in the formula and being capable of obtaining a suitable mobility rate without occurrence of crosstalk between pixels. And the hole transporting material provided by the present disclosure is capable of satisfying the requirements on mask cleaning with solubility (in NMP solvent).
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: November 19, 2019
    Assignees: SHANGHAI TIANMA AM-OLED CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Xiangcheng Wang, Wei He, Ying Liu, Jinghua Niu, Yuji Hamada
  • Publication number: 20190347987
    Abstract: The present disclosure provides a display panel, a method for driving the display panel, and a display device. The display panel includes a control unit including first and second processing circuits. A pixel circuit located within the fingerprint recognition region is connected to the first and second processing circuits of the corresponding control unit. In the fingerprint recognition mode, a pixel circuit located within the non-fingerprint recognition region receives a first light emission control signal, so that the light-emitting element does not emit light in first period and second sub-period and emits light in first sub-period. The second processing circuit provides a second light emission control signal, and a pixel circuit located within fingerprint recognition region responds to the second light emission control signal, so that the light-emitting element does not emit light in first period and emits light in first sub-period and second sub-period.
    Type: Application
    Filed: November 27, 2018
    Publication date: November 14, 2019
    Applicant: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Zhe Zhao, Xingyao Zhou, Haojie Xu, Yana Gao, Yue Li
  • Patent number: 10467938
    Abstract: The present disclosure provides a driving circuit, a display device and a driving method, aiming to eliminate influence of potential of output terminal of shift register on potential of control node of the shift register and thus avoid an adverse effect on display. The scan driving circuit includes shift registers. Each shift register includes a first node control unit configured to switch on the input terminal and the first node; a second node control unit configured to switch on the second node and the first clock signal terminal and also to switch on the first power voltage terminal and the second node; a first output unit configured to switch on the second power voltage terminal and the output terminal; and a second output unit configured to switch on the second clock signal terminal and the output terminal. The third node is electrically connected to the first node.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: November 5, 2019
    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: 10467965
    Abstract: Disclosed are a pixel circuit and method for driving the same, an organic light emitting display panel and a display device. Prior to the data signal is written into the control electrode of the driving transistor, a unified common voltage signal is input to the first electrode of the driving transistor. The common voltage signal, along with a threshold voltage of the driving transistor, is written into the control electrode of the driving transistor. It can be ensured that each time the data signal is written to the control electrode of the driving transistor, voltages of the control electrode and the first electrode of the driving transistor can jump by a unified potential, so as to avoid the variation of the voltage change in the control electrode which came as a result of the parasitic capacitance between the control electrode and the first electrode of the driving transistor.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: November 5, 2019
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Yue Li, Renyuan Zhu, Dongxu XiAng, Yana Gao, Zeyuan Chen, Zhonglan Cai
  • Publication number: 20190333433
    Abstract: Provided is a display panel and display device. A display area of a display panel includes a first area and a second area. The number of pixel units in each row in the first area is less than the number of pixel units in each row in the second area. The scanning lines electrically connected to the first shift registers are disposed in the first area, and the scanning lines electrically connected to the second shift registers are disposed in the second area. The first shift registers and the second shift registers are electrically connected to a first clock signal line, and the first shift registers are electrically connected to the first clock signal line through resistance compensation units.
    Type: Application
    Filed: February 1, 2019
    Publication date: October 31, 2019
    Applicant: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Renyuan Zhu, Yue Li, Dongxu Xiang, Yana Gao, Xingyao Zhou
  • Publication number: 20190333450
    Abstract: Provided is a display panel and display device. The display panel includes a first type sub-pixel and a second type sub-pixel. The first type sub-pixel includes a first voltage-regulating module, which is connected between a pixel drive circuit and a light-emitting component in the first type sub-pixel for increasing a voltage of two ends of the light-emitting component; and/or, the second type sub-pixel includes a second voltage-regulating module, which is connected between a pixel drive circuit and a light-emitting component in the second type sub-pixel for reducing a voltage between a first end and a second end of the light-emitting component.
    Type: Application
    Filed: January 10, 2019
    Publication date: October 31, 2019
    Applicant: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Liyuan Liu, Zhiyong Xiong, Tianqing Hu, Ping An
  • Publication number: 20190332844
    Abstract: Provided are a display panel and a display device. The display panel includes a display assembly, which includes a base substrate and a plurality of light-emitting units disposed on one side of the base substrate, where each of the plurality of light-emitting unit includes a reflective electrode; a fingerprint recognition assembly, which is disposed on one side of the reflective electrode facing away from a light emitting surface of the light-emitting unit, and includes at least one fingerprint recognition unit which is configured to perform fingerprint recognition; and a first reflecting layer, which is disposed on one side of the reflective electrode facing to the fingerprint recognition assembly and includes at least one first reflecting unit, where at least part of a vertical projection of the first reflecting unit on a film layer where the fingerprint recognition unit is located is in an area other than the fingerprint recognition unit.
    Type: Application
    Filed: December 26, 2018
    Publication date: October 31, 2019
    Applicant: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Min Liu, Lijing Han, Xian Chen, Yu Xin, Nannan Song, Zuhua Li
  • Patent number: 10460673
    Abstract: The disclosure discloses a pixel circuit, a method for driving the same, and a display panel. Before a drive control module controls a drive transistor to drive a light emitting device to emit light, a node reset module provides a gate of the drive transistor with a signal of a first voltage terminal; and also while the node reset module is providing the gate of the drive transistor with the signal of the first voltage terminal, a light emitting control module provides a first electrode of the drive transistor with the signal of the first voltage terminal.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: October 29, 2019
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Yana Gao, Dongxu Xiang, Renyuan Zhu, Yue Li, Zeyuan Chen, Zhonglan Cai
  • Patent number: 10460658
    Abstract: An organic light-emitting display panel, a driving method and an organic light-emitting display device are provided. The organic light-emitting display panel includes a first pixel driving circuit, and a second pixel driving circuit disposed adjacent to the first pixel driving circuit along a row direction of a pixel matrix. The first pixel driving circuit is connected to a first scanning signal line, and the second pixel driving circuit is connected to a second scanning signal line. The first and the second pixel driving circuits share a same data line. The same data line is configured to time-sharingly provide an initialization signal to the first and the second pixel driving circuits, time-sharingly detect threshold voltages of driving transistors in the first and the second pixel driving circuits, and time-sharingly provide a compensated data signal to the first and the second pixel driving circuits.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: October 29, 2019
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Dongxu Xiang, Yue Li, Dong Qian, Zeyuan Chen, Gang Liu, Renyuan Zhu, Tong Wu
  • Patent number: 10460656
    Abstract: Disclosed are a display panel and a display device. A middle area is arranged between the first subarea and the second subarea so that components such as a camera and a receiver can be arranged at corresponding positions in the middle area. First driving signal lines only extend along the row direction of the pixels to the edge of the first subarea close to the middle area and second driving signal lines only extend to the edge of the second subarea close to the middle area. A first driving circuit is arranged in the first subarea to drive the first driving signal lines to operate and a second driving circuit is arranged in the second subarea to drive the second driving signal lines to operate.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: October 29, 2019
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Kerui Xi, Tingting Cui, Juan Zhu
  • Publication number: 20190325186
    Abstract: Provided are a display panel and a display device. The display panel includes a display assembly and a fingerprint recognition assembly. The display assembly includes a base substrate, a plurality of pixel units disposed on one side of the base substrate and a first scanning line extending along a first direction, each of the plurality of pixel units includes a pixel driving unit and a light-emitting unit disposed on one side of the pixel driving unit facing away from the base substrate, and the light-emitting unit includes a metal anode. The fingerprint recognition assembly is configured to perform fingerprint recognition according to light reflected by a touch object to a fingerprint recognition unit. A vertical projection of the first scanning line on the base substrate and a vertical projection of the metal anode on the base substrate have an overlapping area.
    Type: Application
    Filed: December 21, 2018
    Publication date: October 24, 2019
    Applicant: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Yana Gao, Xingyao Zhou, Yue Li, Dongxu Xiang, Xinzhao Liu
  • Publication number: 20190326364
    Abstract: Provided is a display panel and display device. The display panel includes a first non-display area, a first display area, a second display area and a third display area. The first display area at least partially surrounds the first non-display area, the first display area and the second display area are arranged in a first direction, the third display area is arranged with the first and second display areas in a second direction. The first display area includes first sub-pixels arranged in array, the second display area includes second sub-pixels arranged in array, and the third display area includes third sub-pixels arranged in array. Each first sub-pixel, each second sub-pixel and each third sub-pixel have a same size in the first direction; each first sub-pixel and each second sub-pixel have a same size in the second direction and each second sub-pixel has the size greater than each third sub-pixel in the second direction.
    Type: Application
    Filed: July 1, 2019
    Publication date: October 24, 2019
    Applicant: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Huiping CHAI, Lijing HAN
  • Patent number: 10446612
    Abstract: The present application discloses an organic light-emitting device and a display device. The organic light-emitting device comprises an anode, a cathode, and a first blue light emitting layer, a second blue light emitting layer and a yellow light emitting layer laminated between the anode and the cathode, wherein the yellow light emitting layer is arranged between the cathode and the first blue light emitting layer, and the first blue light emitting layer is arranged between the yellow light emitting layer and the second blue light emitting layer; and the yellow light emitting layer comprises a phosphorescent material, one of the first blue light emitting layer and the second blue light emitting layer comprises a blue fluorescent material, and the other one comprises a blue thermally-activated delayed fluorescent material used as an auxiliary material between a host and a guest.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: October 15, 2019
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventor: Angran Zhang
  • Patent number: 10446792
    Abstract: A packaging structure includes at least one inorganic layer and at least one passivation layer. The at least one passivation layer includes a halogen-containing amorphous solid oxide thin film. The amorphous solid oxide thin film in the at least one passivation layer has a crosslinked-polyhedra-network structure. A display device includes a substrate, a display layer, and a packaging structure. The packaging structure further includes at least one inorganic layer and at least one passivation layer. The at least one passivation layer includes a halogen-containing amorphous solid oxide thin film. The amorphous solid oxide thin film in the at least one passivation layer has a crosslinked-polyhedra-network structure. A method for fabricating a display device includes providing a substrate, forming a display layer over the substrate, and forming a packaging structure over the display layer with the packaging structure including at least one inorganic layer and at least one passivation layer.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: October 15, 2019
    Assignees: Shanghai Tianma AM-OLED Co., Ltd., Tianma Micro-electronics Co., Ltd.
    Inventors: Zaifeng Xie, Huamin Li, Pei Wu, Xiongjie Jin