Patents by Inventor Zeyuan CHEN
Zeyuan CHEN 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).
-
Patent number: 10535414Abstract: A shift register element, a method for driving the same, and a display device are disclosed. The shift register element includes: an output module configured to provide an output terminal with a signal of a first signal terminal or a second signal terminal by voltage applied to a first node and a second node; a first driver configured to control voltage of the first node by the signal of the first input terminal; a second driver configured to control voltage of the second node by the signal of the first input terminal, and a signal of a third input terminal; a first feedback and adjustment module configured to control the voltage of the first node by the signals of the output terminal and the second input terminal; and a second feedback and adjustment module configured to control the voltage of the second node by the signal of the output terminal.Type: GrantFiled: January 8, 2018Date of Patent: January 14, 2020Assignee: Shanghai Tianma AM-OLED Co., Ltd.Inventors: Yue Li, Renyuan Zhu, Dongxu Xiang, Yana Gao, Zeyuan Chen
-
Patent number: 10467965Abstract: 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: GrantFiled: January 8, 2018Date of Patent: November 5, 2019Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Yue Li, Renyuan Zhu, Dongxu XiAng, Yana Gao, Zeyuan Chen, Zhonglan Cai
-
Patent number: 10460673Abstract: 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: GrantFiled: January 10, 2018Date of Patent: October 29, 2019Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Yana Gao, Dongxu Xiang, Renyuan Zhu, Yue Li, Zeyuan Chen, Zhonglan Cai
-
Patent number: 10460658Abstract: 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: GrantFiled: April 17, 2017Date of Patent: October 29, 2019Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Dongxu Xiang, Yue Li, Dong Qian, Zeyuan Chen, Gang Liu, Renyuan Zhu, Tong Wu
-
Patent number: 10438536Abstract: The present disclosure discloses an electroluminescent display panel, a display device and a method for driving the same. The electroluminescent display panel includes a plurality of pixel circuits arranged in an array, wherein the plurality of pixel circuits each includes a node initialization module and an anode reset module; wherein a connection passage is arranged between every two adjacent pixel circuits of each column of the plurality of pixel circuits; and the connection passage is configured to provide a reference signal to either an anode reset module or a node initialization module of one of the every two adjacent pixel circuits.Type: GrantFiled: January 9, 2018Date of Patent: October 8, 2019Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Yana Gao, Dongxu Xiang, Renyuan Zhu, Yue Li, Zeyuan Chen, Zhonglan Cai
-
Patent number: 10431153Abstract: The disclosure discloses a pixel circuit, a method for driving the same, and an organic electroluminescent display panel, where the pixel circuit includes a node initialization module and a drive control module, the node initialization module includes a first switch transistor with a gate electrically connected with a first scan signal terminal, a source electrically connected with a first reference signal terminal, and a drain electrically connected with a first node; and a seventh switch transistor with a gate electrically connected with the first scan signal terminal, a source electrically connected with the second reference signal terminal, and a drain electrically connected with the second node; the drive control module includes a drive transistor with a gate electrically connected with the first node, a source electrically connected with the second node.Type: GrantFiled: January 8, 2018Date of Patent: October 1, 2019Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Yana Gao, Renyuan Zhu, Yue Li, Dongxu Xiang, Zeyuan Chen
-
Patent number: 10417961Abstract: An organic light-emitting display panel, a driving method, and an organic light-emitting display device are provided. The organic light-emitting display panel comprises a plurality of pixel driving circuits, wherein a pixel driving circuit includes a first scan signal terminal and a second scan signal terminal; a light-emitting signal terminal, a data signal terminal, an initialization signal terminal, a first voltage terminal, and a second voltage terminal; a driving module comprising a driving transistor and a first capacitor having two electrode plates electrically connected to a gate electrode and a first electrode of the driving transistor, respectively; an initialization module comprising a first transistor, a first electrode, and a second electrode electrically connected to a second electrode of the driving transistor; a data writing module electrically connected to the gate electrode of the driving transistor; a light-emitting control module; and an organic light-emitting element.Type: GrantFiled: April 17, 2017Date of Patent: September 17, 2019Assignees: Shanghai Tianma AM-OLED Co., Ltd., Tianma Micro-Electronics Co., Ltd.Inventors: Dongxu Xiang, Yue Li, Tong Wu, Renyuan Zhu, Gang Liu, Dong Qian, Zeyuan Chen
-
Patent number: 10417967Abstract: The present disclosure discloses a display panel and a display device. The display panel includes a plurality of pixel circuits, and each of the pixel circuit includes an initialization component, a data writing component, a light emitting control component, a voltage storage component, a driving transistor, a first voltage maintenance component, a switching control component, an external compensation component and a light-emitting diode. The driving transistor is a dual-gate transistor, and a second gate of the dual-gate transistor is electrically connected to the external compensation component through the switching control component. The external compensation component is under the control of the switching control component to firstly collect the voltage at a third node and then provide a compensation voltage to a second node to adjust the threshold voltage of the dual-gate transistor so that the threshold voltage of the dual-gate transistor is more approximate to a standard threshold voltage.Type: GrantFiled: January 7, 2018Date of Patent: September 17, 2019Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Renyuan Zhu, Yana Gao, Yue Li, Zeyuan Chen
-
Patent number: 10403195Abstract: 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: GrantFiled: October 23, 2017Date of Patent: September 3, 2019Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Renyuan Zhu, Yue Li, Yana Gao, Dongxu Xiang, Zeyuan Chen, Bozhang Sun
-
Patent number: 10373557Abstract: The present application discloses an organic light-emitting pixel driving circuit, a driving method and an organic light-emitting display panel. The organic light-emitting pixel driving circuit comprises: a first transistor provides an initialization signal to an anode of the organic light-emitting diode and a gate of the driving transistor; a second transistor compensates a threshold voltage of the driving transistor; a third transistor provides a data signal to the driving transistor; a fourth transistor transmits a first power supply voltage to the driving transistor; a fifth transistor controls electrical connection between the driving transistor and the organic light-emitting diode based on a signal of the second light-emission controlling signal terminal; a capacitor is used to store the data signal transmitted to the driving transistor; an organic light-emitting diode is used to emit light in response to the driving current generated by the driving transistor.Type: GrantFiled: June 28, 2017Date of Patent: August 6, 2019Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Renyuan Zhu, Yue Li, Tong Wu, Dongxu Xiang, Zeyuan Chen
-
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
-
Patent number: 10297202Abstract: An organic light-emitting display panel, a driving method thereof, and an organic light-emitting display device are provided. The organic light-emitting display panel includes a pixel driving circuit comprising an organic light-emitting element, a driving module, an initialization module, a data write-in module, and a light-emitting control module. The driving module includes a control end, a first end and a second end. The light-emitting control module is configured to transmit a signal to the second end of the driving module. The driving module is configured to drive the organic light-emitting element to emit light based on the signal transmitted by the light-emitting control module. The initialization module is configured to initialize a voltage level of the control end and a voltage level of the first end of the driving module. The data write-in module is configured to write a data signal into the control end of the driving module.Type: GrantFiled: May 5, 2017Date of Patent: May 21, 2019Assignees: Shanghai Tianma AM-OLED Co., Ltd., Tianma Micro-Electronics Co., Ltd.Inventors: Dongxu Xiang, Yue Li, Tong Wu, Dong Qian, Gang Liu, Zeyuan Chen
-
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
-
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
-
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
-
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
-
Patent number: 10147353Abstract: An organic light emitting display panel and a pixel compensation method are provided. The organic light emitting display panel includes: a pixel array including pixel regions divided into M rows and N columns; a plurality of pixel driving circuits, each includes a light emitting diode and a driving transistor for driving the light emitting diode, and the light emitting diodes are located in the pixel regions; and a plurality of pixel compensation circuits configured to sample an anode voltage of the light emitting diode are in at least one of the pixel driving circuits. A light emitting current flows through the light emitting diode, and generates a compensation signal based on the anode voltage and the light emitting current.Type: GrantFiled: May 10, 2017Date of Patent: December 4, 2018Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Dongxu Xiang, Yue Li, Dong Qian, Zeyuan Chen, Gang Liu
-
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
-
Patent number: 10056038Abstract: The present disclosure discloses an organic light emitting display panel, a driving method thereof, and an organic light emitting display apparatus. The organic light emitting display panel includes a plurality of pixel driving circuits, comprising: a driving module including a driving transistor and a first capacitor; an initialization module for initializing potentials of a gate and a first electrode of the driving transistor at least under the control of a first scanning signal terminal; a data writing module for transmitting a signal of a data signal terminal to a second electrode plate of a first capacitor under the control of the first or a second scanning signal terminal; a light emitting control module for transmitting a potential signal of the first electrode of the driving transistor to the second electrode plate of the first capacitor and driving an organic light emitting diode to emit light.Type: GrantFiled: May 12, 2017Date of Patent: August 21, 2018Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Dongxu Xiang, Yue Li, Tong Wu, Zeyuan Chen, Gang Liu, Dong Qian
-
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