Patents by Inventor Zihua LI
Zihua LI 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: 11848334Abstract: This disclosure proposes a display panel, a manufacturing method, an electronic device and a display device. The display panel includes a display area and a peripheral area surrounding the display area. The display panel includes a display substrate, a plurality of signal lines located on the display substrate, and the plurality of signal lines all extending from the peripheral area on one side of the display area to the peripheral area on the other side of the display area across the display area, at least one first compensation capacitor located in the peripheral area on the one side of the display area and corresponding to at least one of the plurality of signal lines, and at least one second compensation capacitor located in the peripheral area on the other side of the display area and corresponding to at least one of the plurality of signal lines.Type: GrantFiled: September 23, 2021Date of Patent: December 19, 2023Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jing Liu, Zihua Li
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Patent number: 11830427Abstract: Provided are a pixel circuit, a display apparatus and a driving method. In one type of pixel circuit, a first switch transistor is arranged between a gate electrode of a driving transistor and a second electrode of a first reset transistor, such that a leak current of the first reset transistor has a relatively small influence on a gate signal of the driving transistor. In other types of pixel circuit, a second reset transistor for short-circuiting the gate electrode and a first electrode is provided, such that the resetting of an anode of a light-emitting device is only related to a signal of a second reset signal end. Therefore, the voltage difference between two ends of a third reset transistor can be reduced by means of adjusting a signal voltage of a reference voltage signal end.Type: GrantFiled: January 19, 2021Date of Patent: November 28, 2023Assignees: Ordos Yuansheng Optoelectronics Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Jing Liu, Zihua Li
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Patent number: 11716872Abstract: The present disclosure provides a display device and a method for manufacturing the same. The display device includes a display substrate; a first cover plate on a side of the display substrate; at least one support layer on a side of the first cover plate distal to the display substrate. The support layer includes a support structure and a second cover plate. The second cover plate is on a side of the first cover plate distal to the display substrate, and the support structure is configured to support the second cover plate.Type: GrantFiled: November 26, 2019Date of Patent: August 1, 2023Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zhuyi Li, Qi Liu, Zihua Li, Qiang Wang
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Publication number: 20230209932Abstract: Provided are a display panel and a manufacturing method thereof, and a display device. The display panel includes a base substrate and a plurality of sub-pixels. At least one sub-pixel includes a light-emitting element; a first transistor; a capacitor including a first electrode and a second electrode plate; a second transistor including a second active layer including a third and a fourth electrode area, and a second channel area; and a third transistor including a third active layer, and a third gate electrode connected to a reset line, the third active layer including a fifth electrode area, a sixth electrode area directly connected to an initialization line via a via hole, and a third channel area. An orthographic projection of the initialization line on the base substrate is located between orthographic projections of the reset line and the gate line on the base substrate.Type: ApplicationFiled: October 22, 2021Publication date: June 29, 2023Applicants: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xu WANG, Zihua LI, Lu CAI, Qiang GUO, Wenqiang JIN, Chunbo LI, Qiang WANG, Xudong WANG, Ruiqing ZHANG
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Patent number: 11587511Abstract: The present disclosure provides a display panel, a display device and a driving method. The display panel includes a display substrate and a driving chip. The display panel is configured to write a data signal to a corresponding pixel circuit at a pre-writing phase and a target data writing phase. The driving chip includes a voltage compensation module configured to obtain a compensation voltage value for the pixel circuits in each row in accordance with the quantity of pre-writing phases. Each pixel circuit is configured to write a pre-writing voltage stored in a parasitic capacitor to a gate electrode of a driving transistor in response to a pre-scanning signal at the pre-writing phase, and write a target writing voltage stored in the parasitic capacitor to the gate electrode of the driving transistor in response to a target scanning signal at the target data writing phase.Type: GrantFiled: September 28, 2021Date of Patent: February 21, 2023Assignee: BOE Technology Group Co., Ltd.Inventors: Jing Liu, Zihua Li
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Publication number: 20220415257Abstract: Provided are a pixel circuit, a display apparatus and a driving method. In one type of pixel circuit, a first switch transistor is arranged between a gate electrode of a driving transistor and a second electrode of a first reset transistor, such that a leak current of the first reset transistor has a relatively small influence on a gate signal of the driving transistor. In other types of pixel circuit, a second reset transistor for short-circuiting the gate electrode and a first electrode is provided, such that the resetting of an anode of a light-emitting device is only related to a signal of a second reset signal end. Therefore, the voltage difference between two ends of a third reset transistor can be reduced by means of adjusting a signal voltage of a reference voltage signal end.Type: ApplicationFiled: January 19, 2021Publication date: December 29, 2022Inventors: Jing LIU, Zihua LI
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Publication number: 20220416007Abstract: Provided is a method for manufacturing an array substrate. The method includes: providing a base substrate with a conductive pattern layer, wherein the base substrate is provided with a display region and a peripheral region disposed around the display region, wherein the conductive pattern layer includes a plurality of conductive lines disposed in the peripheral region; forming an electrode material film layer on the conductive pattern layer; forming a mask layer on the electrode material film layer, wherein the mask layer includes a plurality of electrode layer patterns disposed in the display region and protection patterns disposed above the conductive lines; and etching the electrode material film layer and removing the mask layer.Type: ApplicationFiled: March 9, 2021Publication date: December 29, 2022Inventors: Liang TANG, Liangliang LIU, Liman PENG, Yan WU, Nini BAI, Qiang CHEN, Xu LIU, Guodong JING, Qianqian ZHANG, Zhiyong XUE, Qiang GUO, Guofang XU, Zihua LI, Qiang WANG, Ruiqing ZHANG, Xudong WANG
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Patent number: 11508804Abstract: The present disclosure discloses an organic light emitting display device. The organic light emitting display device includes a substrate, an initializing voltage input line, a first electrode line, a thin film transistor, and an organic light emitting diode arranged on the substrate. The thin film transistor includes a first electrode, a second electrode and a control electrode, and the first electrode is coupled to the first electrode line, the initializing voltage input line is provided in the same layer and is made of the same material as one of the first electrode, the second electrode and the control electrode of the thin film transistor, and an extension direction of the initializing voltage input line is substantially the same as an extension direction of the first electrode line.Type: GrantFiled: February 22, 2021Date of Patent: November 22, 2022Assignees: ORDOS YUANSHENG OPTOELECTRONICS, CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Liman Peng, Qi Liu, Dianjie Hou, Xueguang Hao, Jin Yang, Zihua Li, Yan Wu, Guoping Zhang, Haifeng Xu, Lei Wang, Wenxiu Li, Jianqiang Wang, Fan Yang
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Publication number: 20220310661Abstract: This disclosure proposes a display panel, a manufacturing method, an electronic device and a display device. The display panel includes a display area and a peripheral area surrounding the display area. The display panel includes a display substrate, a plurality of signal lines located on the display substrate, and the plurality of signal lines all extending from the peripheral area on one side of the display area to the peripheral area on the other side of the display area across the display area, at least one first compensation capacitor located in the peripheral area on the one side of the display area and corresponding to at least one of the plurality of signal lines, and at least one second compensation capacitor located in the peripheral area on the other side of the display area and corresponding to at least one of the plurality of signal lines.Type: ApplicationFiled: September 23, 2021Publication date: September 29, 2022Inventors: Jing LIU, Zihua LI
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Patent number: 11444263Abstract: A flexible display panel. The flexible display panel includes: a flexible substrate; a display element arranged on the flexible substrate; and a packaging layer covering the display element, the packaging layer including an inorganic thin film and an organic thin film that are stacked alternately, in which two protrusion structures that are engaged with each other are arranged between at least two adjacent thin films of the packaging layer.Type: GrantFiled: October 12, 2019Date of Patent: September 13, 2022Assignees: Ordos Yuansheng Optoelectronics Co., Ltd., Beijing BOE Technology Development Co., Ltd.Inventors: Xiaodong Meng, Lingling Ma, Zihua Li, Zhibo Wen, Hengbo Liu, Yu Yuan, Lu Cai, Dong Xu, Guofang Xu, Xinpeng Gao, Qiang Wang, Ruiqing Zhang, Qiang Guo, Wenqiang Jin, Xudong Wang
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Publication number: 20220208101Abstract: The present disclosure provides a display panel, a display device and a driving method. The display panel includes a display substrate and a driving chip. The display panel is configured to write a data signal to a corresponding pixel circuit at a pre-writing phase and a target data writing phase. The driving chip includes a voltage compensation module configured to obtain a compensation voltage value for the pixel circuits in each row in accordance with the quantity of pre-writing phases. Each pixel circuit is configured to write a pre-writing voltage stored in a parasitic capacitor to a gate electrode of a driving transistor in response to a pre-scanning signal at the pre-writing phase, and write a target writing voltage stored in the parasitic capacitor to the gate electrode of the driving transistor in response to a target scanning signal at the target data writing phase.Type: ApplicationFiled: September 28, 2021Publication date: June 30, 2022Inventors: Jing LIU, Zihua LI
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Patent number: 11289021Abstract: A pixel circuit, a display panel, a display device and a driving method are provided. The pixel circuit provides an initial signal having an excitation pulse to a control electrode of a driving transistor through a reset circuit in advance; and the initial signal having a preset voltage is provided to the control electrode of the driving transistor after a preset duration.Type: GrantFiled: November 15, 2017Date of Patent: March 29, 2022Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.Inventors: Zihua Li, Qi Liu, Guoping Zhang, Jing Liu, Yuqing Yang, Xiping Li
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Patent number: 11271064Abstract: A display panel, a manufacturing method thereof, and a display device are provided. The display panel includes: a first base substrate including a packaging region; a plurality of support portions located in the packaging region, a first interval being provided between adjacent support portions; a plurality of conductive lines located at a side of the plurality of support portions away from the first base substrate; a packaging layer located at a side of the plurality of conductive lines away from the first base substrate; and a second base substrate arranged opposite to the first base substrate and bonded with the first base substrate by the packaging layer.Type: GrantFiled: June 12, 2019Date of Patent: March 8, 2022Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zihua Li, Jing Liu
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Publication number: 20210249622Abstract: The present disclosure provides a display device and a method for manufacturing the same. The display device includes a display substrate; a first cover plate on a side of the display substrate; at least one support layer on a side of the first cover plate distal to the display substrate. The support layer includes a support structure and a second cover plate. The second cover plate is on a side of the first cover plate distal to the display substrate, and the support structure is configured to support the second cover plate.Type: ApplicationFiled: November 26, 2019Publication date: August 12, 2021Inventors: Zhuyi LI, Qi LIU, Zihua LI, Qiang WANG
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Publication number: 20210210016Abstract: A pixel circuit, a display panel, a display device and a driving method are provided. The pixel circuit provides an initial signal having an excitation pulse to a control electrode of a driving transistor through a reset circuit in advance; and the initial signal having a preset voltage is provided to the control electrode of the driving transistor after a preset duration.Type: ApplicationFiled: November 15, 2017Publication date: July 8, 2021Inventors: Zihua LI, Qi LIU, Guoping ZHANG, Jing LIU, Yuqing YANG, Xiping LI
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Publication number: 20210193694Abstract: The present disclosure relates to an array substrate, a method for fabricating the same, a display panel, and a display device. The array substrate includes an active layer on a substrate, the active layer including a channel region, source/drain regions and a lightly doped drain region, a gate electrode and a first electrode on the active layer, and a gate electrode and the first electrode a first insulating layer, a barrier and a second electrode on the first insulating layer. A projection of the second electrode on the substrate at least partially overlaps that of the first electrode. A projection of the barrier on the substrate covers that of the lightly doped drain region on the substrate. The projection of the barrier on the substrate does not overlap that of the source/drain regions. The barrier and the second electrode are in the same layer.Type: ApplicationFiled: December 11, 2017Publication date: June 24, 2021Inventors: Zihua LI, Jing LIU, Qi LIU, Qun MA
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Publication number: 20210175320Abstract: The present disclosure discloses an organic light emitting display device. The organic light emitting display device includes a substrate, an initializing voltage input line, a first electrode line, a thin film transistor, and an organic light emitting diode arranged on the substrate. The thin film transistor includes a first electrode, a second electrode and a control electrode, and the first electrode is coupled to the first electrode line, the initializing voltage input line is provided in the same layer and is made of the same material as one of the first electrode, the second electrode and the control electrode of the thin film transistor, and an extension direction of the initializing voltage input line is substantially the same as an extension direction of the first electrode line.Type: ApplicationFiled: February 22, 2021Publication date: June 10, 2021Inventors: Liman PENG, Qi LIU, Dianjie HOU, Xueguang HAO, Jin YANG, Zihua LI, Yan WU, Guoping ZHANG, Haifeng XU, Lei WANG, Wenxiu LI, Jianqiang WANG, Fan YANG
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Patent number: 10964774Abstract: The present disclosure discloses a backplane for an organic light emitting display device, a method for fabricating the same, and an organic light emitting display apparatus. The backplane includes a substrate on which a wiring structure and a thin film transistor are provided, wherein the wiring structure includes an initializing voltage input line which is provided in the same layer and made of the same material as electrodes of the thin film transistor.Type: GrantFiled: May 4, 2018Date of Patent: March 30, 2021Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS TECHNOLOGY, CO., LTD.Inventors: Liman Peng, Qi Liu, Jin Yang, Zihua Li, Yan Wu, Guoping Zhang, Haifeng Xu, Wenxiu Li, Lei Wang, Jianqiang Wang, Fan Yang
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Publication number: 20200365826Abstract: The present disclosure provides a flexible display panel, a method for packaging the same, and a display device. The flexible display panel includes: a flexible substrate; a display element arranged on the flexible substrate; and a packaging layer covering the display element, the packaging layer including an inorganic thin film and an organic thin film that are stacked alternately, in which two protrusion structures that are engaged with each other are arranged between at least two adjacent thin films of the packaging layer.Type: ApplicationFiled: October 12, 2019Publication date: November 19, 2020Applicants: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xiaodong MENG, Lingling MA, Zihua LI, Zhibo WEN, Hengbo LIU, Yu YUAN, Lu CAI, Dong XU, Guofang XU, Xinpeng GAO, Qiang WANG, Ruiqing ZHANG, Qiang GUO, Wenqiang JIN, Xudong WANG
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Patent number: 10703725Abstract: An object of the present invention is to provide a novel tetrahydroazepine compound and a process for producing the same. The present invention relates to a tetrahydroazepine compound represented by the formula (10) or a salt thereof, and a process for producing the said compound or a salt thereof. (In the formula, R1 is an optionally substituted alkyl group, R2 is an optionally substituted alkyl group and one of the X—Y bond and the Y—Z bond is a carbon-carbon double bond and the other is a carbon-carbon single bond).Type: GrantFiled: August 26, 2016Date of Patent: July 7, 2020Assignee: NIPPON ZOKI PHARMACEUTICAL CO., LTD.Inventors: Taizo Ito, Xiaoming Liao, Zihua Li