Patents by Inventor RENYUAN ZHU
RENYUAN ZHU 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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Patent number: 10347180Abstract: An organic light-emitting pixel driving circuit, a driving method thereof, and an organic light-emitting display panel are provided. The organic light-emitting pixel driving circuit comprises a light-emitting element, a driving transistor for driving the light-emitting element, an initialization unit, a storage unit, a data write-in unit, and a light-emitting control unit. The initialization unit is configured to transmit a first power supply voltage signal to a gate electrode of the driving transistor and transmit a reference voltage signal to a source electrode of the driving transistor and an anode of the light-emitting element. The storage unit is configured to maintain a voltage signal transmitted to the driving transistor. The data write-in unit is configured to transmit a data voltage signal to the gate electrode of the driving transistor, thus compensating a threshold voltage of the driving transistor. The light-emitting control unit is configured to control the light-emitting element.Type: GrantFiled: May 19, 2017Date of Patent: July 9, 2019Assignees: Shanghai Tianma AM-OLED Co., Ltd., Tianma Micro-Electronics Co., Ltd.Inventors: Renyuan Zhu, Yue Li, Tong Wu
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Patent number: 10347181Abstract: The disclosure discloses a display panel, a display device, and a method for driving a pixel circuit, and the pixel circuit includes a data writing module, a light-emission control module, a driver control module, a threshold compensation module, an anode resetting module, a node initialization module, and an organic light-emitting diode. The threshold compensation module can compensate for drifting of threshold voltage of the driver transistor so that the pixel circuit can emit light and display while operating current of the driver transistor to drive the light-emitting element to emit light is only dependent upon a signal on the data line and voltage at a reference signal end, but independent of the threshold voltage and a first power source voltage end to thereby avoid the threshold voltage and an IR drop from affecting the current flowing through the organic light-emitting diode.Type: GrantFiled: October 10, 2017Date of Patent: July 9, 2019Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Renyuan Zhu, Zeyuan Chen
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Patent number: 10304380Abstract: An organic light-emitting pixel driving circuit, a driving method, and an organic light-emitting display panel are provided. The pixel driving circuit includes a driving transistor, a light-emitting element, an initialization unit, a threshold detecting unit, a compensating unit, a first light-emitting control unit and a second light-emitting control unit. The initialization unit transmits a data voltage signal to a gate electrode of the driving transistor, and transmits a reference voltage signal to a source electrode of the driving transistor and an anode of the light-emitting element. The threshold detecting unit detects a threshold voltage of the driving transistor and holds at least one voltage signal inputted to the driving transistor. The compensating unit transmits a first power supply voltage signal to the gate electrode of the driving transistor. The first and second light-emitting control units are connected to first and second light-emitting control signal lines, respectively.Type: GrantFiled: April 17, 2017Date of Patent: May 28, 2019Assignees: Shanghai Tianma AM-OLED Co., Ltd., Tianma Micro-Electronics Co., Ltd.Inventor: Renyuan Zhu
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Patent number: 10290694Abstract: Disclosed are an organic light-emitting display panel and an organic light-emitting display device. The organic light-emitting display panel includes a display area, a middle area of the display panel, an array substrate, pixels arranged in an array, and first signal lines and second signal lines for providing the pixels with signals and extending in a first direction, in the display area of the array substrate, a first quantity of pixels corresponding to a first signal line is less than a second quantity of pixels corresponding to a second signal line, and first transparent conductive lines are electrically connected with the first signal lines in the middle area.Type: GrantFiled: March 28, 2018Date of Patent: May 14, 2019Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Dongxu Xiang, Renyuan Zhu, Yue Li, Yana Gao, Zhonglan Cai
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Patent number: 10276094Abstract: A pixel driving circuit, a driving method and an organic light-emitting display panel are provided. The pixel driving circuit includes: a first transistor, a second transistor, a third transistor, a fourth transistor and a fifth transistor, a sixth transistor, a seventh transistor and an eighth transistors, and a capacitor. A first node is present between the fourth transistor and the fifth transistor. The seventh transistor is coupled between a reference voltage line and the first node, and the eighth transistor is coupled between the reference voltage line and an anode of the light-emitting element.Type: GrantFiled: March 20, 2017Date of Patent: April 30, 2019Assignees: Shanghai Tianma AM-OLEO Co., Ltd., TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Dongxu Xiang, Yue Li, Dong Qian, Gang Liu, Renyuan Zhu, Tong Wu, Zeyuan Chen
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Patent number: 10262565Abstract: The invention discloses an organic light-emitting display panel, a method and apparatus for testing the same, and a method for displaying on the same. The luminance of each of grayscales of a displayed picture is preset; a data signal voltage corresponding to the highest grayscale is determined while switching from a preset picture to another picture without any afterimage. An active pulse duty cycle of a light-emission control signal is determined according to the determined data signal voltage and the luminance of the highest grayscale. Data signal voltages corresponding to the other grayscales are determined. The determined active pulse duty cycle of the light-emission control signal, and the determined data signal voltages corresponding to the respective grayscales are stored.Type: GrantFiled: November 8, 2017Date of Patent: April 16, 2019Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Dongxu Xiang, Yue Li, Yana Gao, Renyuan Zhu, Zhonglan Cai
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Patent number: 10249242Abstract: The present application discloses an organic light emitting pixel driving circuit, an organic light emitting display panel and a driving method thereof. One embodiment of the organic light emitting pixel driving circuit comprises: a storage unit, a coupling unit, a data writing unit, a light emitting control unit, a reset unit, a data line, a first scanning line, a second scanning line, a light emitting control line, a reference voltage line, an initialization voltage line, a light emitting element and a driving transistor. By writing a compensation voltage to a second electrode of the driving transistor and then to a gate of the driving transistor through the coupling unit, the embodiment avoids a noise from a parasitic capacitance generated by a signal change on the data line to the gate of the driving transistor, therefore a stable display is achieves.Type: GrantFiled: March 27, 2017Date of Patent: April 2, 2019Assignees: SHANGHAI TIANMA AM-OLED CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Tong Wu, Yue Li, Renyuan Zhu, Gang Liu
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Publication number: 20190096337Abstract: 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: ApplicationFiled: November 29, 2018Publication date: March 28, 2019Applicant: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Renyuan ZHU, Yue LI, Dongxu XIANG, Yana GAO, Xingyao ZHOU
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Patent number: 10242620Abstract: 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: GrantFiled: February 27, 2018Date of Patent: March 26, 2019Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Renyuan Zhu, Yue Li, Dongxu Xiang, Yana Gao
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Patent number: 10210803Abstract: 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: GrantFiled: May 5, 2017Date of Patent: February 19, 2019Assignees: SHANGHAI TIANMA AM-OLED CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Tong Wu, Zeyuan Chen, Yue Li, Dongxu Xiang, Renyuan Zhu, Gang Liu
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Publication number: 20180374410Abstract: Embodiments of the disclosure provide a shift register, a method for driving the same, and a display device, and the shift register includes: a first input module and a second input module, connected respectively with an input signal terminal and a first clock signal terminal; a first control module and a second control module connected with a second clock signal terminal; a third control module connected with a first reference signal terminal; and an output module and a plurality of capacitors, connected respectively with the first reference signal terminal, the second reference signal terminal, and the output signal terminal.Type: ApplicationFiled: October 23, 2017Publication date: December 27, 2018Inventors: Renyuan Zhu, Yue LI, Yana GAO, Dongxu XIANG, Zeyuan CHEN, Bozhang SUN
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Publication number: 20180357959Abstract: The present application discloses an organic light emitting display panel, a driving method thereof and an organic light emitting display apparatus. The organic light emitting display panel comprises: a pixel array, comprising pixel regions in M rows and N columns; a plurality of pixel driving circuits each comprising a light emitting diode and a driving transistor for driving the light emitting diode, the light emitting diode being arranged in one of the pixel regions; and a plurality of pixel compensation circuits, each configured to provide a compensated light emitting control signal for a gate of the driving transistor to correct brightness of the light emitting diode in one of the plurality of pixel driving circuits. According to the present disclosure, the final light emitting current may be unrelated to the threshold voltage of the driving transistor, the carrier mobility and aging of the light emitting diode.Type: ApplicationFiled: August 21, 2018Publication date: December 13, 2018Inventors: Dongxu XIANG, Yue LI, Renyuan ZHU, Tong WU, Dong QIAN, Zeyuan CHEN, Gang LIU
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Patent number: 10152923Abstract: A display panel includes: pixel units, where each pixel unit includes sub-pixels in a row direction; gate lines and data lines crossed to define sub-pixel regions, each sub-pixel region includes one sub-pixel and an organic light emitting diode (OLED) driving circuit, OLED driving circuits in a same column are connected with one data line, OLED driving circuits in a same row are connected with one gate line; and at least two sub-pixel regions adjacent in a column direction being a first region and a second region respectively, and in the first and second regions in a same group, the sub-pixel in the first region is connected with the OLED driving circuit in the second region, and the sub-pixel in the second region is connected with the OLED driving circuit in the first region.Type: GrantFiled: June 2, 2017Date of Patent: December 11, 2018Assignees: SHANGHAI TIANMA AM-OLED CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Yue Li, Dong Qian, Dongxu Xiang, Renyuan Zhu, Gang Liu
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Patent number: 10102799Abstract: The description provides an organic light emitting display panel and a driving method thereof, characterized in that the organic light emitting display panel is divided into a display area and a non-display area, and the non-display area surrounds the display area; the display area includes a plurality of rows of pixel units, and each row of pixel units include a plurality of pixel circuits; a plurality of driving circuit units located in the non-display area; and any one of the driving circuit units is electrically connected to more than two rows of the pixel units simultaneously. Using the organic light emitting display panel and the driving method thereof provided by at least one embodiment of the invention can be more advantageous to narrow borders on the basis of ensuring resolution and avoiding abnormal display of images.Type: GrantFiled: November 21, 2016Date of Patent: October 16, 2018Assignees: Shanghai Tianma AM-OLED Co., Ltd., Tianma Micro-electronics Co., Ltd.Inventors: Tong Wu, Wenhui Zou, Dong Qian, Yue Li, Gang Liu, Dongxu Xiang, Renyuan Zhu
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Patent number: 10083659Abstract: The present application discloses an organic light emitting display panel, a driving method thereof and an organic light emitting display apparatus. The organic light emitting display panel comprises: a pixel array, comprising pixel regions in M rows and N columns; a plurality of pixel driving circuits each comprising a light emitting diode and a driving transistor for driving the light emitting diode, the light emitting diode being arranged in one of the pixel regions; and a plurality of pixel compensation circuits, each configured to provide a compensated light emitting control signal for a gate of the driving transistor to correct brightness of the light emitting diode in one of the plurality of pixel driving circuits. According to the present disclosure, the final light emitting current may be unrelated to the threshold voltage of the driving transistor, the carrier mobility and aging of the light emitting diode.Type: GrantFiled: June 21, 2017Date of Patent: September 25, 2018Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Dongxu Xiang, Yue Li, Renyuan Zhu, Tong Wu, Dong Qian, Zeyuan Chen, Gang Liu
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Publication number: 20180261164Abstract: Provided are an organic light-emitting display panel and an organic display device, the organic light-emitting display panel includes: a display region and at least one peripheral circuit region; the peripheral circuit region is provided with shift registers cascaded in stages and clock signal lines of at least two different types, the number of clock signal lines in at least one of the different types is not less than 2, clock signals of one type of the clock signal lines are the same, clock signals of different types of the clock signal lines are different; the clock signal lines each is electrically connected to a clock signal input terminal of one of the shift registers, the shift registers each is configured to output a gate driving signal according to the clock signal in the clock signal line electrically connected to the input terminal of one of the shift registers.Type: ApplicationFiled: May 15, 2018Publication date: September 13, 2018Inventors: Renyuan ZHU, Yue LI, Dongxu XIANG, Yana GAO, Xingyao ZHOU
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Publication number: 20180240389Abstract: 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: ApplicationFiled: April 25, 2018Publication date: August 23, 2018Applicant: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Yue Li, Renyuan Zhu, Dongxu Xiang, Yana Gao, Xingyao Zhou
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Patent number: 10056034Abstract: The present disclosure discloses an organic light-emitting pixel driving circuit, driving method and an organic light-emitting display panel. A driving transistor is to generate a driving current, a light-emitting element is to emit light; a first transistor is to transmit a first initialization voltage to the light-emitting element; a second transistor is to transmit a second initialization voltage to the driving transistor; a third transistor is to transmit a data signal voltage to the pixel driving circuit; a fourth transistor is to transmit a reference voltage to the driving circuit; a first capacitor is coupled in series between the output terminal of the third transistor and the driving transistor; a fifth transistor is to control the first capacitor; a sixth transistor is to control light emission of the light-emitting element; a second capacitor is to maintain the charge amount between the gate and source of the driving transistor.Type: GrantFiled: June 11, 2017Date of Patent: August 21, 2018Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Renyuan Zhu, Zeyuan Chen
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Publication number: 20180226460Abstract: An array substrate, an organic light emitting display panel and an organic light emitting display device are provided. The array substrate includes a base substrate and pixel units; a first electrode wire and a second electrode wire formed at a side of the base substrate, the first electrode wire being configured to provide a first supply voltage signal for the anode layer, the second electrode wire being configured to provide a second supply voltage signal for the cathode layer; a first metal wire and a second metal wire formed in the non-display region and surrounding the display region. The first metal wire is electrically connected to the first electrode wire, and the second metal wire is electrically connected to the second electrode wire.Type: ApplicationFiled: April 3, 2018Publication date: August 9, 2018Inventors: Renyuan ZHU, Yue LI, Dongxu XIANG, Yana GAO
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Publication number: 20180219058Abstract: Disclosed are an organic light-emitting display panel and an organic light-emitting display device. The organic light-emitting display panel includes a display area, a middle area of the display panel, an array substrate, pixels arranged in an array, and first signal lines and second signal lines for providing the pixels with signals and extending in a first direction, in the display area of the array substrate, a first quantity of pixels corresponding to a first signal line is less than a second quantity of pixels corresponding to a second signal line, and first transparent conductive lines are electrically connected with the first signal lines in the middle area.Type: ApplicationFiled: March 28, 2018Publication date: August 2, 2018Applicant: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Dongxu XIANG, Renyuan ZHU, Yue LI, Yana GAO, Zhonglan CAI