Patents Assigned to Shanghai Tianma AM-OLED Co., Ltd
  • Patent number: 10810398
    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: Grant
    Filed: December 26, 2018
    Date of Patent: October 20, 2020
    Assignee: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Min Liu, Lijing Han, Xian Chen, Yu Xin, Nannan Song, Zuhua Li
  • Patent number: 10811465
    Abstract: Provided are a display panel and a display device. The display panel includes a display region having a first steplike edge. The display region is provided with a plurality of sub-pixel groups. Each sub-pixel group includes a first sub-pixel unit, a second sub-pixel unit and a third sub-pixel unit. The first sub-pixel unit, the second sub-pixel unit and the third sub-pixel unit have different luminous colors. Along a connecting line of step apex angles of the first steplike edge, the display region is provided with a plurality of first sub-pixel groups and a plurality of second sub-pixel groups. The first sub-pixel unit in each first sub-pixel group is disposed at a step apex angle of the first steplike edge, and the second sub-pixel unit in each second sub-pixel group is disposed at the step apex angle of the first steplike edge.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: October 20, 2020
    Assignee: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Yuan Li, Xian Chen, Lijing Han, Kaihong Huang
  • Patent number: 10804346
    Abstract: The present disclosure provides a display panel, a display device, and a method for driving a display device. The display panel has a display region, a partial region of which is reused as a photographing photosensitive region. The display panel includes: a first substrate; a second substrate disposed opposite to the first substrate; a plurality of pixel units disposed in the display region, and a plurality of photosensitive elements disposed in the photographing photosensitive region. The first substrate is located on a side of the second substrate facing a light-emitting surface, the plurality of pixel units is formed on the second substrate, each of the plurality of pixel units includes a pixel circuit and a light-emitting element, and a planarization layer is arranged between the pixel circuit and the light-emitting element, and the plurality of photosensitive elements is located on a side of the planarization layer facing the first substrate.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: October 13, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Xue Wang, Haimin Liu, Zhiyong Xiong
  • Patent number: 10803817
    Abstract: The present disclosure provides an emission control circuit including a first processing module, a second processing module, a third processing module and an output 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 includes a first transistor having a control electrode electrically connected to the first node, a first electrode electrically connected to the second node and a second electrode electrically connected to the first control signal terminal, and a second transistor having a control electrode electrically connected to the first control signal terminal, a first electrode electrically connected to the second node and a second electrode electrically connected to the first control signal terminal. The third processing module generates a third signal and a fourth signal in response to the second control signal, the first signal and the second signal.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: October 13, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Yana Gao, Xing Yao Zhou, Yue Li, Renyuan Zhu, Dongxu Xiang, Gaojun Huang, Yilin Xu, Zhonglan Cai, Juan Zhu
  • Patent number: 10804351
    Abstract: An organic light-emitting diode (OLED) display panel and a display device are provided. An array substrate in the OLED display panel is provided with a first retaining wall surrounding a display region of the array substrate, and a second retaining wall surrounding the first retaining wall. Multiple outer electrode lines are exposed in a gap region between the first retaining wall and the second retaining wall on the array substrate. At least one of the multiple outer electrode lines is provided with at least one outer blocking portion at an edge region on at least one side of the outer electrode line, and the outer blocking portion breaks an edge line on the side of the outer electrode line in an extending direction of the outer electrode line and in contact with the outer electrode line.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: October 13, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventor: Peng Zhang
  • Publication number: 20200303673
    Abstract: Provided are a display panel and a display device. The display panel includes multiple light-emitting devices. Each of the multiple light-emitting devices includes a red light-emitting device, a green light-emitting device and a blue light-emitting device. The red light-emitting device includes a red light-emitting layer, a peak wavelength of a red spectrum emitted by the red light-emitting device is ?11, and a peak wavelength of an intrinsic emission spectrum of a red light-emitting material in the red light-emitting layer is ?12. The green light-emitting device includes a green light-emitting layer, a peak wavelength of a green spectrum emitted by the green light-emitting device is ?21, and a peak wavelength of an intrinsic emission spectrum of a green light-emitting material in the green light-emitting layer is ?22. ?1=?11??12, ?2=?21??22.
    Type: Application
    Filed: July 2, 2019
    Publication date: September 24, 2020
    Applicant: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Shuang Cheng, Jinghua Niu, Mingzhi Dai, Yinhe Liu, Jianyun Wang, Yibin Xing
  • Patent number: 10783829
    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: Grant
    Filed: January 10, 2019
    Date of Patent: September 22, 2020
    Assignee: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Liyuan Liu, Zhiyong Xiong, Tianqing Hu, Ping An
  • Patent number: 10769977
    Abstract: The present disclosure provides a shift register. The shift register includes: a first node control module configured to control level at a first node based on a first clock signal and a second clock signal; a second node control module configured to control level at a second node based on level at the first node, the first clock signal, the second clock signal, a first low level signal and a high level signal; an output control module configured to control an output terminal to output high or low level based on level at the first node, level at the second node, the high level signal and a second low level signal; and a carry control module configured to control a carry terminal to output high or low level based on level at the second node, level at the output terminal, the high level signal and the second low level signal.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: September 8, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Dongxu Xiang, Yue Li, Renyuan Zhu, Yana Gao, Xing Yao Zhou, Juan Zhu, Zhonglan Cai, Yilin Xu, Gaojun Huang
  • Patent number: 10769992
    Abstract: The present application discloses a display panel and a display device. The display panel comprises a plurality of data signal lines; a plurality of scan signal lines intersecting with the plurality of data signal lines, to define a plurality of sub-pixels in an array, and each of the sub-pixels comprising a pixel driving circuit, and an external compensation circuit, comprising a power supply unit, a sampling unit and a data signal generation unit, being connected to the data signal lines, and transmitting a compensated data signal via the data signal lines to the pixel driving circuits. In the present implementation, voltage compensation is performed by the external compensation circuit on the driving transistor and the organic light emitting diode in the pixel driving circuit, to improve the driving capability of the pixel driving circuit and increases the display precision of the display panel.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: September 8, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Yue Li, Dongxu Xiang, Gang Liu
  • Patent number: 10759802
    Abstract: The present disclosure relates to the field of technology of an OLED material and a device having the same, and particularly to a compound, a preparation method thereof and an organic light emitting display device, wherein the compound has a structure expressed by formula (I).
    Type: Grant
    Filed: November 5, 2017
    Date of Patent: September 1, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Zhengchuan Zhang, Hao Dai, Defeng Bi
  • Patent number: 10762976
    Abstract: The present disclosure provides a shift register. The shift register includes: a first node control module for controlling level at the first node; a second node control module for controlling level at a second node; and an output control module for controlling the output terminal to output high or low level. The first node control module includes an input unit configured to write the input signal into the third node and a protection unit configured to control a level at a fourth node based on a level at the third node and control writing of the level at the fourth node into the first node based on the second clock signal. The technical solution of the present disclosure can prevent the transistor for providing the third node with inputting signal from being broken down.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: September 1, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Renyuan Zhu, Yue Li, Dongxu Xiang, Yana Gao, Xingyao Zhou, Gaojun Huang, Yilin Xu, Zhonglan Cai, Juan Zhu
  • Patent number: 10763449
    Abstract: An OLED display panel is provided. The OLED display panel comprises a first electrode; an opposite second electrode; and a plurality of stacking layers sandwiched between the first electrode and the second electrode. The plurality of stacking layers at least comprises a first auxiliary light-emitting layer and a light-emitting layer sequentially disposed on the first electrode. The first auxiliary light-emitting layer comprises a host material and a dopant material, and the dopant material comprises a compound of the following chemical formula (I): where n is an integer equal to or larger than 1, X1, X2 and Xn+2 each independently has a chemical structure of R? is selected from any one of a substituted aryl group and a substituted heteroaryl group, and a substituent in the substituted aryl group and a substituent in the substituted heteroaryl group each includes at least one electron acceptor group.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: September 1, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Huihui Ma, Xiangcheng Wang, Hongyang Ren, Jie Li, Yuji Hamada, Wei He, Chen Liu
  • Patent number: 10756142
    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: Grant
    Filed: July 1, 2019
    Date of Patent: August 25, 2020
    Assignee: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Huiping Chai, Lijing Han
  • Patent number: 10748476
    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: Grant
    Filed: November 27, 2018
    Date of Patent: August 18, 2020
    Assignee: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Zhe Zhao, Xingyao Zhou, Haojie Xu, Yana Gao, Yue Li
  • Patent number: 10748972
    Abstract: The present disclosure provides an organic light-emitting display panel and a display device. The organic light-emitting display panel has display area including fingerprint recognition region and non-fingerprint recognition region; and non-display area surrounding the display area. The organic light-emitting display panel includes: a base substrate; organic light-emitting elements arranged in the display area, located on a side of the base substrate and having at least three different colors; and a fingerprint recognition unit arranged in the fingerprint recognition region. The organic light-emitting elements include first organic light-emitting element disposed in the fingerprint recognition region and second organic light-emitting element disposed in the non-fingerprint recognition region, which emit light of a same color.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: August 18, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Xian Chen, Lijing Han, Yu Xin, Yueting Fang, Min Liu
  • Patent number: 10741124
    Abstract: The present disclosure provides a pixel circuit, a display panel, and a display device. The pixel circuit includes: first and second scan signal input terminals; a data signal input terminal; a first power supply signal input terminal; a light-emitting control signal input terminal; a reference voltage input terminal; first to sixth transistors, a first capacitor, and a piezoresistor having a first electrode electrically connected to a first electrode plate of the first capacitor, and a second electrode electrically connected to a first electrode of the third transistor.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: August 11, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Zhiyong Xiong, Liyuan Liu, Liujing Fan
  • Patent number: 10734415
    Abstract: Display panel and display device are provided. The display panel includes a display region; a non-display region; and a notch. Data lines are disposed in the display region. An edge of the display panel recesses toward the display region to form the notch. The display region includes a first display region and second display regions. The notch and the first display regions are disposed between two second display regions in the first direction and are adjacent in the second direction. The data lines include first data lines in each of the second display regions separated by the notch. Connection lines are disposed surrounding the at least one notch, and each connection line connects two of the first data lines in a same column and on two sides of the notch At least a portion of the connection lines includes first segments disposed in the first display region.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: August 4, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Xinzhao Liu, Kaihong Huang, Min Chen, Lin Cheng, Zhuan Gao, Ciyi Gu, Jing Lv, Haoshen Wang, Qingxia Wang, Xiaoyu Wang, Zi Xu, Jiayao Yang, Qian Zhang, Peng Zhang
  • Patent number: 10733939
    Abstract: Disclosed are a pixel circuit, a display panel and a drive method for a pixel circuit. The pixel circuit comprises: a light-emitting element, configured for emitting light in response to a drive current; a drive transistor, configured for providing the drive current to the light-emitting element; a data write device, configured for writing a data signal to a gate electrode of the drive transistor; a hold device, electrically connected with the gate electrode of the drive transistor and configured for holding a voltage on the gate electrode of the drive transistor in a light-emitting stage; and a control device, electrically connected with the gate electrode of the drive transistor and configured for controlling the drive transistor to operate in a full cut-off region in a cut-off stage, wherein, the cut-off stage precedes the light-emitting stage.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: August 4, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Kerui Xi, Junting Ouyang, Baiquan Lin, Tingting Cui
  • Publication number: 20200243021
    Abstract: The present disclosure provides a display panel and display device. The display panel includes: data lines disposed in a display area; a bonding terminal disposed in a non-display area surrounding the display area; fan-out lines; and demuxes disposed between the display area and the bonding terminal; each of the demuxes comprises at least two switch transistors; each switch transistor in one demux has a first electrode electrically connected to a corresponding data line of the data lines through a first connection line, a second electrode connected to the bonding terminal through one of the fan-out lines corresponding to the one demux, and a gate electrode electrically connected to a first clock signal line corresponding to the switch transistor; each fan-out line of the display panel overlaps the first clock signal line for an equal number of times.
    Type: Application
    Filed: May 8, 2019
    Publication date: July 30, 2020
    Applicant: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Yue Li, Xingyao Zhou, Kaihong Huang
  • Patent number: 10726238
    Abstract: The present disclosure provides a display panel and a display device. The display panel includes: a plurality of light-emitting devices; a plurality of fingerprint recognition sensors; a plurality of pixel driving circuits each corresponding to one of the plurality of light-emitting devices; and a light-emitting scan driving circuit for controlling whether or not the plurality of light-emitting devices emit light. The light-emitting scan driving circuit is used to output a first pulse signal to a corresponding pixel driving circuit during a fingerprint recognition time phase, and to output a second pulse signal to a corresponding pixel driving circuit during a non-fingerprint recognition time phase. A period of the first pulse signal is different from a period of the second pulse signal.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: July 28, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Yana Gao, Xingyao Zhou, Yuan Li