Patents Assigned to Shanghai Tianma AM-OLED Co., Ltd
  • Publication number: 20190096337
    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: Application
    Filed: November 29, 2018
    Publication date: March 28, 2019
    Applicant: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Renyuan ZHU, Yue LI, Dongxu XIANG, Yana GAO, Xingyao ZHOU
  • Patent number: 10243142
    Abstract: A display panel, a polymer light emitting diode and a method for manufacturing the same are provided. The polymer light emitting diode includes: an organic light emitting layer having a first surface and a second surface opposite to each other; a hole transport part formed on the first surface of the organic light emitting layer; and an electron transport part formed on the second surface of the organic light emitting layer, the electron transport part including a nanocomposite layer.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: March 26, 2019
    Assignees: SHANGHAI TIANMA AM-OLED CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventor: Zaifeng Xie
  • Patent number: 10242620
    Abstract: Disclosed are a pixel circuit, a method for driving the same, a display panel, a display device, and the pixel circuit which includes a driving transistor structured with double-gates, a first switch transistor, a second switch transistor, a third switch transistor, a fourth switch transistor, a first capacitor, a second capacitor, and a light-emitting element; and the respective transistors and capacitors above cooperate with each other to compensate for threshold voltage of the driving transistor, so that driving current to drive the light-emitting element to emit light is only dependent upon voltage of a data signal, the light-emitting element is avoided from being affected by the threshold voltage of the driver control module, and when the same data signal is applied to different pixel elements, an image at the same brightness can be displayed.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: March 26, 2019
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Renyuan Zhu, Yue Li, Dongxu Xiang, Yana Gao
  • Patent number: 10235932
    Abstract: An inverting circuit is disclosed. The inverting circuit includes a pull-up unit including first, second, and third terminals. The first terminal receives a first control signal, and the third terminal is connected to a signal output terminal and outputs a first level signal. The inverting circuit also includes a pull-down unit including fourth, fifth, and sixth terminals. The fourth terminal is connected to the second terminal of the pull-up unit, and the fifth terminal receives a second control signal. In addition, the sixth terminal is connected to the signal output terminal and outputs a second level signal. The inverting circuit also includes a first capacitor, connected to the second terminal of the pull-up unit and the fourth terminal of the pull-down unit, and to the third terminal of the pull-up unit and the sixth terminal of the pull-down unit.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: March 19, 2019
    Assignees: Shanghai Tianma AM-OLED Co., Ltd., Tianma Micro-Electronics Co., Ltd.
    Inventors: Tong Wu, Dong Qian
  • Patent number: 10235937
    Abstract: The present application discloses an organic light-emitting display panel and a driving method thereof, as well as an organic light-emitting display device. A specific implementation of the organic light-emitting display panel comprises: an array arrangement comprising a plurality of pixel units, a plurality of data lines and a plurality of reference signal lines, wherein each pixel unit comprises a first subpixel, a second subpixel and a third subpixel, and a color of the first subpixel, a color the second subpixel and a color of the third subpixel differ from one another; a pixel driving circuit is formed in each subpixel, and comprises a driving transistor and an organic light-emitting diode; and the first subpixel, the second subpixel and the third subpixel of an identical pixel unit are electrically connected with a given reference signal line.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: March 19, 2019
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Yue Li, Gang Liu
  • Publication number: 20190075669
    Abstract: A bending apparatus and a display device are provided. The bending apparatus includes a first supporting portion, a second supporting portion and a bending portion. Each of the first supporting portion and the second supporting portion is formed by a retractable plate-shaped structure. The bending portion rotatably connected to the first supporting portion and the second supporting portion. The first supporting portion and the second supporting portion are retractable such that the bending portion can be moved relative to the first supporting portion and the second supporting portion. In this case, a bendable position of the bending apparatus can be changed, such that the bending apparatus is bendable at multiple positions.
    Type: Application
    Filed: November 8, 2018
    Publication date: March 7, 2019
    Applicant: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventor: Lin HENG
  • Patent number: 10224385
    Abstract: A display panel and an electronic device are provided. The display panel comprises a base substrate including a display region and a border region surrounding the display region, wherein the border region includes an encapsulation region; a plurality of display units disposed in the display region; an encapsulation member disposed in the border region; a plurality of wires disposed in the border region; and a cover substrate arranged opposite to the base substrate. The display units and the wires are disposed between the base substrate and the cover substrate, the encapsulation member is disposed in the encapsulation region and configured to bond and fix the base substrate to the cover substrate, and at least one of the wires is disposed in the encapsulation region.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: March 5, 2019
    Assignee: Shanghai Tianma AM-OLED Co., Ltd
    Inventors: Chunyang Li, Dong Qian
  • Patent number: 10211416
    Abstract: A flexible display panel is provided. The flexible display panel comprises: a flexible substrate; an organic light-emitting layer disposed on a side of the flexible substrate and having a first side facing the flexible substrate and an opposing side; and a thin-film-encapsulation layer disposed on the opposing side of the organic light-emitting layer. The thin-film-encapsulation layer includes at least one organic encapsulation layer and at least one inorganic encapsulation layer. The flexible display panel includes at least one bending area. The at least one inorganic encapsulation layer has a first side facing the flexible substrate and an opposing side. In the at least one bending area, at least one groove is formed on the opposing side of the at least one inorganic encapsulation layer. A bottom width W of the at least one groove is configured to be W ? n 180 ? ° ? ? ? ? R .
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: February 19, 2019
    Assignees: SHANGHAI TIANMA AM-OLED CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Jian Jin, Congyi Su, Gang Liu, Zhenying Li
  • Patent number: 10212811
    Abstract: A flexible display panel and a display apparatus, the flexible display panel includes: flexible base layer; display part; packaging layer; supporting layer, including first area, bending area and second area, first area being connected with the second area via the bending area, bending area including at least two supporting teeth; supporting body located at a side of flexible base layer facing away from display device; when bending area is in flattening state, reserved space is formed between adjacent supporting teeth; when bending area is in bending state, flexible base layer, first area, supporting body, and second area are stacked in direction perpendicular to first area, adjacent supporting teeth contact with each other to provide supporting force to flexible base layer, supporting teeth together with first and second area form avoiding space, in direction perpendicular to the first area, projection of avoiding space is within projection of bending area.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: February 19, 2019
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Peng Zhang, Zhenying Li
  • Patent number: 10210803
    Abstract: A pixel circuit and driving method thereof, and a display device are provided. The pixel circuit comprises a light-emitting element, a first, second, third, and fourth transistors, and a capacitor element. The first transistor is configured to time-sharingly receive a data voltage and a power supply voltage under control of a first voltage signal. The second transistor is configured to detect and compensate a threshold voltage deviation of the first transistor under control of a first scanning signal. The third transistor is configured to provide a driving current generated by the first transistor to the light-emitting element under control of a light-emitting signal. The fourth transistor is configured to transmit a reset signal to an anode of the light-emitting element under control of a second scanning signal. The capacitor element is configured to store the data voltage transmitted to the first transistor. The light-emitting element is configured to emit light.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: February 19, 2019
    Assignees: SHANGHAI TIANMA AM-OLED CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Tong Wu, Zeyuan Chen, Yue Li, Dongxu Xiang, Renyuan Zhu, Gang Liu
  • Patent number: 10211263
    Abstract: The present disclosure provides a display device and a manufacture method thereof. The pixel definition layer includes a plurality of openings. The organic light emitting layer includes an opening region of the transparent conductive layer and a non-opening region of the transparent conductive layer. The opening region of the transparent conductive layer † disposed in the plurality of openings of the pixel definition layer. The organic light emitting layer being formed over the opening region of the transparent conductive layer to correspondingly form the plurality of sub-pixels. A three-dimensional recess is disposed in the substrate module below at least one of the color sub-pixels, each three-dimensional recess corresponds to one of the openings. The opening region of the transparent conductive layer and the organic light emitting layer are disposed in the three-dimensional recess.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: February 19, 2019
    Assignees: SHANGHAI TIANMA AM-OLED CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Zhiyong Xiong, Yongzhi Wang
  • Patent number: 10204969
    Abstract: An organic light-emitting display panel, a fabrication method thereof, and a display apparatus are provided. The organic light-emitting display panel comprises a substrate; a plurality of blocking structures disposed on the substrate, wherein a blocking structure has a first surface facing the substrate and an opposing second surface far away from the substrate; a plurality of first electrodes, wherein a first electrode is configured between adjacent blocking structures; an organic functional film layer covering at least one of the plurality of first electrodes and the plurality of blocking structures, wherein the organic functional film layer includes a light-emitting layer; and a degradation region disposed in a portion of the second surface of the blocking structure, wherein the degradation region degrades a carrier transportation in a portion of the organic functional film layer in which the portion of the organic functional film layer covers the degradation region.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: February 12, 2019
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Shuang Cheng, Jinghua Niu, Xiangcheng Wang, Yuji Hamada
  • Patent number: 10205112
    Abstract: An organic light-emitting diode (OLED) display panel and an OLED display device are provided. The OLED display panel comprises a first substrate; a first electrode layer including a plurality of first electrodes; a first hole transport layer; a second hole transport layer including a plurality of hole transport units arranged in correspondence with the plurality of first electrodes respectively; a plurality of light-emitting devices disposed on a surface of the second hole transport layer and arranged in correspondence with the plurality of hole transport units respectively, wherein the hole transport units corresponding to the light-emitting devices of at least one color include at least two hole transport materials, and at least one of the at least two hole transport materials in the hole transport units has a higher lowest unoccupied molecular orbital (LUMO) than the corresponding light-emitting devices; an electron transport layer; and a second electrode layer.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: February 12, 2019
    Assignees: Shanghai Tianma AM-OLED Co., Ltd., Tianma Micro-Electronics Co., Ltd.
    Inventors: Xiangcheng Wang, Jinghua Niu, Wei He, Yuji Hamada, Chen Liu
  • Patent number: 10199442
    Abstract: Provided is an organic light-emitting display panel, including: an array substrate, an organic light-emitting element arranged on the array substrate, and an encapsulation portion; the organic light-emitting element includes a reflective layer, a pixel definition layer including pixel definition parts, a light-emitting pixel layer including light-emitting pixel parts each arranged between the pixel definition parts, a cathode layer arranged on a side of the light-emitting pixel layer away from the reflective layer, and a support layer arranged between at least one pair of adjacent light-emitting pixel parts of the light-emitting pixel layer; the support layer includes a metal part and an annular organic part placed on a side of the metal part away from the array substrate; the encapsulation portion includes at least one organic encapsulation layer and at least one inorganic encapsulation layer; and the encapsulation portion covers the organic light-emitting element.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: February 5, 2019
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Peng Zhang, Congyi Su
  • Publication number: 20190035875
    Abstract: An organic light-emitting display panel is provided. The display panel includes a first driving voltage line arranged on an interlayer insulation layer and electrically connected with a source electrode or drain electrode of a driving transistor, a first reference voltage line arranged on a substrate and configured to extend in a first direction; a second reference voltage line arranged on the substrate and configured to extend in a second direction perpendicular to the first direction. A first electrode of the first switch transistor is electrically connected with the first reference voltage line, and a second electrode of the first switch transistor is electrically connected with a first electrode plate of a capacitor. A first electrode of the second switch transistor is electrically connected with the second reference voltage line, and a second electrode of the second switch transistor is electrically connected with a gate electrode of the driving transistor.
    Type: Application
    Filed: September 29, 2018
    Publication date: January 31, 2019
    Applicant: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Yu XIN, Yue LI, Lijing HAN
  • Patent number: 10181288
    Abstract: An organic light-emitting diode pixel circuit addresses problems associated with power consumption of a conventional 3D image display using two displayed adjacent frames of image signals that are spaced by a black picture. The pixel circuit includes a signal pre-storage module for storing a signal in a current frame of image signal, when the voltage of a first drive signal is higher than the voltage of a second drive signal and a gate line connected with the pixel is enabled; and a drive module for driving a drive transistor when the voltage of the first drive signal is higher than the voltage of the second drive signal; and to generate a current drive signal from the signal stored in the signal pre-storage module in the current frame of image signal, when the voltage of the first drive signal is not higher than the voltage of the second drive signal.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: January 15, 2019
    Assignees: SHANGHAI TIANMA AM-OLED CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Xiaoxu Hu, Li Zhang, Zhiyang Gao
  • Patent number: 10177333
    Abstract: Embodiments of the present disclosure disclose an organic light-emitting display panel and an organic light-emitting display device. The organic light-emitting display panel includes: a substrate; a first electrode and a second electrode that are stacked, wherein the first electrode and the second electrode are both located on the same side of the substrate; an organic light-emitting layer, which is located between the first electrode and the second electrode; an electron transport layer, which is located between the organic light-emitting layer and the second electrode; wherein, a rare earth transitional metal is also contained at any location between the surface of the second electrode away from the organic light-emitting layer and the surface of the electron transport layer near to the organic light-emitting layer.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: January 8, 2019
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Jinghua Niu, Zhihong Lei, Xiangcheng Wang, Wei He, Yuji Hamada, Chen Liu
  • Patent number: 10177344
    Abstract: A display panel and a method for manufacturing the same are disclosed. The display panel includes: a substrate, a display element located on the substrate, and a thin-film encapsulation layer located on the display element. The thin-film encapsulation layer includes at least one first encapsulation material layer and at least one second encapsulation material layer; the refractive index of the first encapsulation material layer is different from that of the second encapsulation material layer; wherein, at least one of the first encapsulation material layers is provided with a plurality of grooves; the grooves are filled with the second encapsulation material layer above the first encapsulation material layer provided with a plurality of grooves.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: January 8, 2019
    Assignees: Shanghai Tianma AM-OLED Co., Ltd., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Xiangcheng Wang, Jinghua Niu, Yuji Hamada, Wanming Hua, Wei He, Shuang Cheng
  • Patent number: 10177332
    Abstract: Disclosed are an organic light-emitting display panel and an organic light-emitting display device. The organic light-emitting display panel comprises: a substrate, a second electrode, a light-emitting layer, a first hole transport layer and a first electrode that are successively laminated, wherein, the materials of both the first electrode and the second electrode are silver or silver-containing metallic materials, the material of the first hole transport layer is a conductive material doped with a P-type semiconductor material and a P-type semiconductor material layer is set between the first hole transport layer and the first electrode.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: January 8, 2019
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Xiangcheng Wang, Jinghua Niu, Yuji Hamada, Wei He, Wanming Hua, Shuang Cheng
  • Patent number: 10170730
    Abstract: A vacuum evaporation device, a vacuum evaporation method, and an organic light-emitting display panel are provided. The vacuum evaporation device comprises at least a first evaporation chamber. The first evaporation chamber includes at least one first organic material evaporation source and at least one first metal evaporation source. The at least one first organic material evaporation source is configured to evaporate a first organic material, and the at least one first metal evaporation source is configured to evaporate a first metal material. The at least one first organic material evaporation source and the at least one first metal evaporation source are controlled to perform evaporation simultaneously to generate blend doping of a first organic material and a first metal material on a substrate disposed within the first evaporation chamber.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: January 1, 2019
    Assignees: SHANGHAI TIANMA AM-OLED CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Yuji Hamada, Jinghua Niu, Wei He, Honggang Yan, Lei Lv, Xiangcheng Wang