Patents by Inventor Xingyao ZHOU
Xingyao ZHOU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20200388229Abstract: Provided is an output control device for providing control signals for a pixel circuit, which includes: a first output device configured to output a first control signal for controlling writing of a data signal into the pixel circuit, a second output device configured to output a second control signal for controlling a light emitting element to emit light, and a third output device configured to output a third control signal for controlling resetting of the light emitting element. A frequency of the third control signal is higher than a frequency of the first control signal. In a first period, the second control signal is an active level signal and the third control signal is an inactive level signal. In a second period, the second control signal is an inactive level signal and the third control signal is an active level signal.Type: ApplicationFiled: August 20, 2020Publication date: December 10, 2020Inventors: Mengmeng ZHANG, Yana GAO, Xingyao ZHOU
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Publication number: 20200381458Abstract: Disclosed are a display panel and a display apparatus. The display panel includes a multiplex circuit, a plurality of signal connection lines and a plurality of data signal lines, wherein each of the switch devices in the multiplex circuit comprises at least one thin film transistor; the colors of all pixel units in a first pixel unit column are the same; the colors of at least two pixel units in a second pixel unit column are different; first switch devices correspond to first pixel unit columns; second switch devices correspond to second pixel unit columns; and the equivalent channel width-to-length ratio of thin film transistors in each first switch device is less than the equivalent channel width-to-length ratio of thin film transistors in each second switch device.Type: ApplicationFiled: December 8, 2019Publication date: December 3, 2020Inventors: Shuai Yang, Yue Li, Xingyao Zhou, Zhi Liu
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Patent number: 10854128Abstract: The present disclosure provides a display panel including: gate lines; data lines insulated from and intersecting with gate lines; pixel units; first and second clock signal lines; first and second power signal lines; gate driving units; and virtual driving units. Each gate driving unit has an output terminal electrically connected to gate lines, a first clock signal input terminal electrically connected to first clock signal line, and a second clock signal input terminal electrically connected to second clock signal line. Each virtual driving unit has an output terminal insulated from gate lines, a first clock signal input terminal insulated from first and second clock signal lines, and a second clock signal input terminal insulated from first and second clock signal lines. At least one virtual driving unit is disposed within the rounded angle region and located between two gate driving units.Type: GrantFiled: January 25, 2019Date of Patent: December 1, 2020Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Yana Gao, Xinzhao Liu, Yue Li, Xingyao Zhou, Kaihong Huang
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Patent number: 10847237Abstract: 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: GrantFiled: January 10, 2019Date of Patent: November 24, 2020Assignee: 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
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Publication number: 20200320937Abstract: An organic light-emitting display panel and a display device are provided. The organic light-emitting display panel includes a control circuit. The control circuit includes a plurality of transistors. The plurality of transistors includes at least one first-type transistor, and each of the at least one first-type transistor has a channel width and a channel length, one of which is greater than five times the other one. Each of the at least one first-type transistor is a single-gate transistor.Type: ApplicationFiled: June 24, 2020Publication date: October 8, 2020Inventors: Shuai YANG, Yue Li, Zhi Liu, Xingyao Zhou
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Patent number: 10762976Abstract: 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: GrantFiled: November 21, 2018Date of Patent: September 1, 2020Assignee: 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
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Patent number: 10748490Abstract: An organic light-emitting diode (OLED) compensation circuit, a display panel and a display apparatus are provided. The OLED compensation circuit includes a first transistor, a second transistor, a third transistor, a fourth transistor, a storage capacitor and an OLED element. For the first transistor, a gate electrode is electrically connected to a first scanning signal line, a first electrode electrically connected to a data signal line, and a second electrode electrically connected to a first node. For the second transistor, a gate electrode is electrically connected to a first light-emitting control signal line, a first electrode electrically connected to a first voltage signal line, and a second electrode electrically connected to a second node. For the third transistor, a gate electrode is electrically connected to the first node, a first electrode electrically connected to the second node, and a second electrode electrically connected to a third node.Type: GrantFiled: April 5, 2019Date of Patent: August 18, 2020Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Haojie Xu, Xingyao Zhou, Yue Li, Yana Gao
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Patent number: 10748476Abstract: 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: GrantFiled: November 27, 2018Date of Patent: August 18, 2020Assignee: Shanghai Tianma AM-OLED Co., Ltd.Inventors: Zhe Zhao, Xingyao Zhou, Haojie Xu, Yana Gao, Yue Li
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Publication number: 20200243021Abstract: 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: ApplicationFiled: May 8, 2019Publication date: July 30, 2020Applicant: Shanghai Tianma AM-OLED Co., Ltd.Inventors: Yue Li, Xingyao Zhou, Kaihong Huang
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Publication number: 20200243151Abstract: Disclosed are a shift register, gate electrode driving circuit, display panel and display device. The shift register includes a second output module and a coupling module, the coupling module having two ends electrically connected to a third node and a second signal output end respectively. In a second phase, a potential at a fourth node is an enable level, the second output module transfers a high-level signal at a first power source signal input end to a second output end; in a third phase, a potential at the third node is the enable level, the second output module transfers a low-level signal at a second power source signal input end to the second output end; the low-level signal at the second output end is coupled to the third node through a coupling function of the coupling module, the potential at the third node is then lower in the third phase than in the second phase.Type: ApplicationFiled: April 17, 2020Publication date: July 30, 2020Inventors: Yue LI, Xingyao Zhou
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Publication number: 20200243005Abstract: Provided are a display panel, a compensation method thereof and a display device. The display panel includes an organic light-emitting element array, a pixel circuit and a detection circuit; the organic light-emitting element array includes multiple organic light-emitting element groups, and ith organic light-emitting element rows in each organic light-emitting element groups are adjacently arranged; a peripheral circuit region includes a pixel driving circuit, a detection driving circuit, and an integrated driving circuit; in a detection phase, the detection driving circuit provides an enabling signal to the detection circuit; the integrated driving circuit provides a detection signal for the detection circuit, and sequentially detects multiple organic light-emitting element groups in a same organic light-emitting element row; in a display phase, the integrated driving circuit provides the compensation signal to the pixel circuit according to the compensation signal.Type: ApplicationFiled: April 17, 2020Publication date: July 30, 2020Inventors: Yue Li, Xingyao Zhou, Shuai Yang, Mengmeng Zhang
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Patent number: 10726778Abstract: The present disclosure provides an emission driving circuit, which includes: a first node control module configured to provide an input signal or a high level signal to a first node based on a first clock signal and a second clock signal, to control a level at the first node; a second node control module configured to control a level at a second node based on the level at the first node, the first clock signal, the second clock signal, a first low level signal and the high level signal; and 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. A low level of the first low level signal is different from a low level of the second low level signal.Type: GrantFiled: October 23, 2018Date of Patent: July 28, 2020Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Dongxu Xiang, Yue Li, Renyuan Zhu, Yana Gao, Xingyao Zhou, Juan Zhu, Zhonglan Cai, Yilin Xu, Gaojun Huang
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Patent number: 10726238Abstract: 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: GrantFiled: September 21, 2018Date of Patent: July 28, 2020Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Yana Gao, Xingyao Zhou, Yuan Li
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Patent number: 10726239Abstract: A display panel includes a base substrate, including a display region and a non-display region; a pixel array in the display region; and at least one fingerprint recognition unit, located on the base substrate in the non-display region. Each fingerprint recognition unit includes a fingerprint recognition sensor, including a first electrode layer, a P-type-semiconductor/insulator/N-type-semiconductor (PIN) layer, and a second electrode layer. The first electrode layer includes a transparent electrode material. The non-display region includes a step bending region, and a fingerprint recognition region located on the side of the step bending region away from the display region. The at least one fingerprint recognition unit is located in the fingerprint recognition region. The display panel is folded at the step bending region. The first electrode layer of each fingerprint recognition unit is located on the side surface of the PIN layer close to the light-emitting surface of the display panel.Type: GrantFiled: October 22, 2018Date of Patent: July 28, 2020Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Xingyao Zhou, Yana Gao, Yue Li, Dongxu Xiang, Yuan Li, Renyuan Zhu
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Patent number: 10712846Abstract: A touch display panel is disclosed. The touch display panel includes first touch electrodes and second touch sub-electrodes. The first touch electrodes are insulated from and intersect with the second touch sub-electrodes. At least two of the first touch electrodes are connected as at least one first touch electrode group, where each first touch electrode group is connected with a touch drive detection unit through a wire. In addition, second touch sub-electrodes corresponding to each of the first touch electrode groups form a second touch electrode group. Each second touch electrode group includes second touch electrode units, each including at least two second touch sub-electrodes. Each of the second touch sub-electrodes is connected with the touch drive detection unit through a different wire. Additionally, the touch drive detection unit transmits a touch drive signal to or receives a detection signal from the first touch electrodes or the second touch sub-electrodes.Type: GrantFiled: June 16, 2015Date of Patent: July 14, 2020Assignees: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Lihua Wang, Xingyao Zhou, Xianxiang Zhang, Yingying Xu, Xiaoye Li, Gang Liu
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Patent number: 10714053Abstract: The present disclosure provides a driving circuit, a method for controlling light emission, and a display device. The driving circuit includes one or more light emission shift registers, each of which includes a first processing module configured to control a signal at a first node based on signals at the input signal terminal, the first clock signal terminal and the second clock signal terminal; a second processing module including first and second transistors, wherein the first transistor is a dual-gate transistor, and the second transistor has a first terminal electrically connected to the pulse signal terminal and a second terminal electrically connected to the second node; and an output module configured to control a signal at an output signal terminal based on the signals at the first level signal terminal, the second level signal terminal, the first node and the second node.Type: GrantFiled: November 15, 2018Date of Patent: July 14, 2020Assignee: 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
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Patent number: 10706761Abstract: A control method for a display panel is provided, the display panel includes multiple gate lines, multiple data lines arranged to intersect with the gate lines in an insulative manner, multiple sub-pixels arranged in an array and a demultiplexer. The N data lines for charging the sub-pixels with different colors are connected to one signal input terminal through the demultiplexer, N is an integer greater than 1. The control method includes charging the sub-pixels connected to the demultiplexer in a direct charging manner, and the sub-pixels with the same color have the same charging time period in a preset period.Type: GrantFiled: April 25, 2018Date of Patent: July 7, 2020Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Yue Li, Renyuan Zhu, Dongxu Xiang, Yana Gao, Xingyao Zhou
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Patent number: 10699633Abstract: A display panel is provided, having a display area, a fan-out area at periphery of the display area, and a binding area located at a side of the fan-out area away from the display area. The display panel includes: first, second and third short-circuiting bars located in the fan-out/binding area and extending along a first direction; and a first power line extending along a second direction intersecting with the first direction. The first power line extends from the binding area passing through the fan-out area to the display area, and is configured to provide a first power signal to a display unit in the display area. The first, second, third short-circuiting bars, and the first power line are located in a first metal layer, and at least one of the first, second, third short-circuiting bars is insulated from and does not intersect with the first power line.Type: GrantFiled: May 28, 2019Date of Patent: June 30, 2020Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Yue Li, Xingyao Zhou, Kaihong Huang, Min Chen
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Patent number: 10699640Abstract: A method for driving a pixel circuit is disclosed. The method includes: a time for displaying a frame including N initialization phases and N data signal voltage writing phases before a light-emitting phase. The ith of the N data signal voltage writing phases is after the ith of the N initialization phases and before the (i+1)th of the N initialization phases, and the Nth data signal voltage writing phase is after the Nth initialization phase, 1?i?N?1, i is an integer and N is an integer greater than 1. In the initialization phase, an initialization voltage is applied to the gate electrode of the driving transistor by the initialization module. In the data signal voltage writing phase, a data signal voltage is applied to the gate electrode of the driving transistor by the data signal voltage writing module.Type: GrantFiled: April 23, 2018Date of Patent: June 30, 2020Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Xingyao Zhou, Yuan Li
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Patent number: 10692424Abstract: The disclosure discloses an organic electroluminescent display panel, a driving method thereof and a display device, where the dimming mode is taken to drive and each frame of scanning time is divided into the display area scanning time and the front-back porch time. Where each line of pixel circuits located in the display area of the organic electroluminescent display panel are scanned during the display area scanning time; and the drive circuit is adjusted during the front-back porch time. Where the front-back porch time is less than the display area scanning time, and the front-back porch time is the common multiple of the respective clock signal cycles in the gate drive circuit of the organic electroluminescent display panel.Type: GrantFiled: January 4, 2018Date of Patent: June 23, 2020Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Dongxu Xiang, Yue Li, Zeyuan Chen, Xiangzi Kong, Xingyao Zhou, Chuanli Leng, Yuan Li