Patents by Inventor Yongqian Li
Yongqian 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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Publication number: 20250098449Abstract: A display substrate and a display apparatus are provided. In the display substrate, the pixel definition layer defines opening regions of a plurality of sub-pixels; two adjacent sub-pixels are respectively an upper sub-pixel and a lower sub-pixel; the first electrode of the upper sub-pixel has a first edge close to the lower sub-pixel and a second edge intersecting with the first edge; the opening region of the upper sub-pixel has a first edge close to the lower sub-pixel and a second edge intersecting with the first edge; the distance between the first edge of the first electrode of the upper sub-pixel and the first edge of the opening region of the upper sub-pixel is greater than the distance between the second edge of the first electrode of the upper sub-pixel and the second edge of the opening region of the upper sub-pixel.Type: ApplicationFiled: April 29, 2022Publication date: March 20, 2025Inventors: Can YUAN, Yongqian LI, Dacheng ZHANG, Bin ZHOU, Yu WANG, Xinxin WANG, Ning LIU
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Publication number: 20250095571Abstract: A display substrate and a display device are disclosed, the display substrate has a plurality of display partitions arranged in a plurality of rows and columns, and at least one display partition includes a plurality of sub-pixels; the display substrate includes a base substrate and common scanning signal lines, the common scanning signal lines are provided on the base substrate, and include a plurality of first common scanning signal lines extending along a first direction and a plurality of second common scanning signal lines extending along a second direction, and the first direction is different from the second direction; each of the plurality of second common scanning signal lines is electrically connected to one first common scanning signal line, and is configured to provide a common scanning signal to one display partition.Type: ApplicationFiled: January 12, 2023Publication date: March 20, 2025Inventors: Zhidong YUAN, Can YUAN, Dacheng ZHANG, Yongqian LI
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Publication number: 20250098448Abstract: A display substrate, a method for operating the same, and a display device are provided. The display substrate includes a base substrate and a display unit. In the sub-pixel of the display substrate, the light emitting device includes a first electrode including a first portion and a second portion spaced apart from each other; the display unit further includes a connection structure and a first transfer electrode, the connection structure is electrically connected with the first portion of the first electrode and the second portion of the first electrode, and includes a connection portion located in the non-light-emitting region; the first transfer electrode is electrically connected with the first pole of the driving transistor and includes a portion located in the non-light-emitting region, and the connection portion is electrically connected with the portion of the first transfer electrode located in the non-light-emitting region.Type: ApplicationFiled: April 29, 2022Publication date: March 20, 2025Inventors: Can YUAN, Yongqian LI, Dacheng ZHANG
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Patent number: 12254836Abstract: A display substrate and a display device are provided. The display substrate includes: a base substrate; a plurality of pixels; and a light emitting control line and a first power supply line which are electrically connected to a light emitting control circuit of the pixel. The light emitting control circuits of pixels located in two adjacent rows share the same light emitting control line. The light emitting control circuit includes a light emitting control transistor, the gate of the light-emitting control transistor is electrically connected to the light emitting control line, one of the first electrode and the second electrode of the light emitting control transistor is connected to the first power supply line, and the first power supply line extends in parallel to the light emitting control line.Type: GrantFiled: July 8, 2021Date of Patent: March 18, 2025Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE Technology Group Co., Ltd.Inventors: Yongqian Li, Can Yuan
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Publication number: 20250089365Abstract: A display substrate including a base substrate and a driving module arranged on the base substrate, the driving module includes at least one driving unit, and the driving unit includes N stages of driving circuits; N is a positive integer, n is a positive integer less than or equal to N; the nth stage of driving circuit includes a (2n?1)th stage of output circuit, a 2nth stage of output circuit and a first node control circuit; the first node is electrically connected to the (2n?1)th stage of output circuit and the 2nth stage of output circuit respectively through a first connection line; the driving module also includes a scanning line; there are at least two mutually independent overlapping portions between the orthographic projection of the first connection line on the base substrate and the orthographic projection of the scanning line on the base substrate.Type: ApplicationFiled: July 28, 2022Publication date: March 13, 2025Applicants: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Can YUAN, Luke DING, Zhidong YUAN, Liu WU, Yongqian LI, Dacheng ZHANG, Cheng XU, Dandan ZHOU
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Publication number: 20250089492Abstract: A display substrate, a method for operating the same, and a display apparatus are provided. In the display substrate, the scanning signal line extends along the first direction, passes through the non-light-emitting region and the display region; the longitudinal signal line is in the display region and extends along a second direction; the scanning signal line includes an outer ring portion, and the outer ring portion includes a first conductive line and a second conductive line. The second conductive line is spaced from the first conductive line in the second direction, both the first conductive line and the second conductive line extend along the first direction, extend from the non-light-emitting region to the display region, and overlap with the longitudinal signal line; the scanning signal line includes a trunk portion extending along the first direction, and electrically connected with both the first conductive line and the second conductive line.Type: ApplicationFiled: April 29, 2022Publication date: March 13, 2025Inventors: Can YUAN, Yongqian LI, Xinxin WANG, Ning LIU, Bin ZHOU, Dacheng ZHANG, Yu WANG
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Patent number: 12250867Abstract: A display panel, and a test method thereof, a display apparatus, each subpixel of the pixel array of the display panel includes a pixel circuit, a first signal line configured to provide a scanning signal to the pixel circuit, a scan driver circuit configured to provide the scanning signal to the pixel circuit and includes a shift register and a clock signal line in the display area; a test circuit board in the non-display area and including a test pad; and a test lead in the non-display area and electrically connected with the test pad. The first signal line includes a first part in the display area and a second part in the non-display area, the first part extends substantially along the first direction.Type: GrantFiled: September 28, 2021Date of Patent: March 11, 2025Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zhidong Yuan, Pan Xu, Yongqian Li, Can Yuan
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Publication number: 20250078744Abstract: A light-emitting control circuit includes: a first detection control unit configured to transmit a first voltage signal to the first node under control of a detection control signal and a first clock signal; a first light-emitting output unit configured to transmit the first voltage signal to a first output signal terminal under control of a voltage of the first node; a second detection control unit configured to transmit the first voltage signal to a second node under control of the detection control signal and a second clock signal; and a second light-emitting output unit configured to transmit the first voltage signal to a second output signal terminal under control of a voltage of the second node.Type: ApplicationFiled: April 20, 2022Publication date: March 6, 2025Applicants: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zhidong YUAN, Yongqian LI, Can YUAN
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Publication number: 20250078747Abstract: The present disclosure provides a pixel circuit, a display panel and a display apparatus, belongs to the field of display technology, and can solve a problem that a current time for compensating a threshold voltage is limited, and is easily affected by a sub-threshold voltage. The pixel circuit includes a reset sub-circuit, a data writing sub-circuit, a threshold compensation sub-circuit, a sub-threshold compensation sub-circuit, a driving transistor, a first storage capacitor, a first light emitting control sub-circuit, a second light emitting control sub-circuit and a light emitting device; the sub-threshold compensation sub-circuit is configured to store a voltage of a fourth node and compensate a sub-threshold of the driving transistor by using the voltage of the fourth node; the fourth node is a connection point between the sub-threshold compensation sub-circuit, a second electrode of the driving transistor, the data writing sub-circuit and the second light emitting control sub-circuit.Type: ApplicationFiled: January 19, 2023Publication date: March 6, 2025Inventors: Zhidong YUAN, Yongqian LI
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Publication number: 20250078768Abstract: A shift register unit, a display driving circuit, a display panel, and a control method. The shift register unit includes: an input circuit configured to provide signals of an input signal terminal (IN) and a power signal terminal (VGH) to first and second pull-up nodes (Q1, Q2); a first control circuit configured to control potentials of the first pull-down node (QB1), and the first pull-up node (Q1); a second control circuit configured to control potentials of the second pull-up node (Q2) and the second pull-down node (QB2) based on the first pull-up node (Q1) and the first pull-down node (QB1); and an output circuit configured to provide the signal of one of the power signal terminal (VGH) and the reference signal terminal (VGL) to an output signal terminal (OUT) under control of the second pull-up node (Q2) and the second pull-down node (QB2).Type: ApplicationFiled: August 31, 2023Publication date: March 6, 2025Inventors: Xuehuan Feng, Yongqian Li
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Publication number: 20250066188Abstract: The present disclosure discloses a MEMS grating and a fabrication method. The MEMS grating includes a substrate layer, an insulation layer and a deformable layer. The deformable layer is made of a continuous conductive material, the insulation layer is distributed along transverse intervals on the substrate layer, and a cavity is formed between every two adjacent insulation layers. The deformable layer includes movable grating bars and fixed grating bars. The fixed grating bars are fixedly connected with the insulation layer, and the movable grating bars correspond to the cavities. A plurality of through holes are formed in the movable grating bars. During wet etching, the movable grating bars generate upwards buckling deformation, which increase an initial gap between the movable grating bars and a substrate. An adhesion effect caused by the wet etching is eliminated, which reduces permanent failures caused by the adhesion effect.Type: ApplicationFiled: November 8, 2023Publication date: February 27, 2025Applicant: Northwestern Polytechnical UniversityInventors: Yongqian Li, Datai Hui, Dayong Qiao
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Patent number: 12236892Abstract: Provided is a gate driver circuit. The gate driver circuit is applicable to a display panel, wherein the display panel includes a plurality of rows of pixels; the gate driver circuit including at least one gate driver sub-circuit; wherein the gate driver sub-circuit includes: at least two shift register groups, wherein each shift register group includes a plurality of shift register units; at least two first dummy units, wherein the at least two first dummy units are respectively coupled to a same input enable terminal and the at least two shift register groups; and at least two second dummy units, wherein the at least two second dummy units are coupled to the at least two shift register groups.Type: GrantFiled: July 28, 2022Date of Patent: February 25, 2025Assignees: HEFEI BOE JOINT TECHNOLOGY CO. , LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zhidong Yuan, Yongqian Li, Can Yuan, Liu Wu, Luke Ding, Cheng Xu, Miao Liu, Xing Yao
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Patent number: 12236915Abstract: A shift register circuit includes an input sub-circuit, an output sub-circuit and a control sub-circuit. The input sub-circuit is coupled to a first input signal terminal and a pull-up node, and configured to, under control of a first input signal, transmit the first input signal to the pull-up node. The output sub-circuit is at least coupled to the pull-up node, a first clock signal terminal and a first signal output terminal, and configured to transmit a first clock signal to the first signal output terminal under control of a voltage at the pull-up node. The control sub-circuit is coupled to at least one first reference node, at least one first control signal terminal and the pull-up node, and configured to transmit a voltage at a first reference node to the pull-up node under control of a first control signal.Type: GrantFiled: April 30, 2024Date of Patent: February 25, 2025Assignees: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xuehuan Feng, Yongqian Li
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Patent number: 12236885Abstract: A shift register is provided to include a voltage control circuit coupled to an output control node; at least one driving output circuit, each including an output transistor and a capacitor structure sequentially arranged along a first direction; a first conductive line therebetween and extending along a second direction and coupled to a signal output line configured for the driving output circuit; the output transistor includes a gate electrode coupled to the output control node and a first voltage writing electrode of the capacitor structure, a first electrode coupled to a clock signal line configured for the driving output circuit and a second electrode coupled to the first conductive line; a second conductive line is disposed between the first conductive line and the capacitor structure, and the first conductive line is coupled to a second voltage writing electrode of the capacitor structure through the second conductive line.Type: GrantFiled: November 18, 2022Date of Patent: February 25, 2025Assignees: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xuehuan Feng, Dacheng Zhang, Yongqian Li, Mingming Xie
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Publication number: 20250061851Abstract: A pixel circuit and a driving method thereof, and a display device are disclosed. The pixel circuit includes a driving circuit, a data writing circuit, a reset circuit, a light-emitting control circuit and a light-emitting element. The driving circuit includes a control terminal, a first terminal and a second terminal; the data writing circuit is connected to a first node to apply a data voltage; the reset circuit is connected to the first node to apply a reference voltage. The pixel circuit further includes a partition control circuit, which is connected to the first node and the control terminal, and is configured to apply the data voltage and the reference voltage to the control terminal; the reset circuit is connected to one of the first terminal and the second terminal of the driving circuit, and the reset circuit is further configured to apply an initialization voltage to the driving circuit.Type: ApplicationFiled: January 12, 2023Publication date: February 20, 2025Inventors: Zhidong YUAN, Pan XU, Yongqian LI, Can YUAN
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Publication number: 20250063816Abstract: A display substrate and a display device. The display substrate comprises: a base substrate, and a gate driving circuit and a plurality of sub-pixels arranged on the base substrate; the display substrate further comprises a heat dissipation hole structure, and at least part of an orthographic projection of the heat dissipation hole structure onto the base substrate is located between an orthographic projection of the gate driving circuit onto the base substrate and an orthographic projection of the sub-pixels onto the base substrate.Type: ApplicationFiled: July 28, 2022Publication date: February 20, 2025Applicants: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xuehuan FENG, Yongqian LI
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Patent number: 12232363Abstract: Provided are a display substrate, a manufacturing method thereof and a display apparatus. The display substrate includes multiple sub-pixels, wherein each sub-pixel includes a light-emitting region and a non-light-emitting region, and each sub-pixel is provided with a drive circuit; the drive circuit includes a storage capacitor and multiple transistors; for each sub-pixel, the multiple transistors are in the non-light-emitting region, the storage capacitor is a transparent capacitor, and an orthographic projection of the storage capacitor on a base substrate coincides with the light-emitting region. A first electrode of the storage capacitor is disposed in a same layer as an active layer of the multiple transistors, but in a different layer from source and drain electrodes of the multiple transistors, and a second electrode of the storage capacitor is on a side of the first electrode close to the base substrate.Type: GrantFiled: August 19, 2020Date of Patent: February 18, 2025Assignee: BOE Technology Group Co., Ltd.Inventors: Pan Xu, Yongqian Li, Guoying Wang, Dacheng Zhang, Chen Xu, Lang Liu, Xing Zhang, Ling Wang, Yicheng Lin, Ying Han
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Patent number: 12230188Abstract: A shift resister includes a first scan unit and a black insertion circuit. The first scan unit includes a first input circuit and a first output circuit. The first input circuit is configured to transmit a display input signal to a first pull-up node. The first output circuit is configured to, in a case where the first input circuit transmits the display input signal to the first pull-up node, transmit a first clock signal to a first scan signal terminal. The black insertion circuit is configured to transmit a black insertion input signal to the first pull-up node. The first output circuit is further configured to, in a case where the black insertion circuit transmits the black insertion input signal to the first pull-up node, transmit the first clock signal to the first scan signal terminal.Type: GrantFiled: August 20, 2021Date of Patent: February 18, 2025Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xuehuan Feng, Yongqian Li
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Patent number: 12232400Abstract: Provided are a display panel and a method for manufacturing the same, and a display device. The display panel includes: a base substrate including a display area and a peripheral area; a separator located at the peripheral area and including at least one separation portion, each separation portion including a first and a second separation layer, and the orthographic projection of the first separation layer on the base substrate is within that of the second separation layer; a cathode including: a first cathode portion, and a second cathode apart from the first cathode portion; and an encapsulation layer including a first and a second inorganic layer, and an organic layer located between the first and the second inorganic layer, wherein edges of the orthographic projections of the first inorganic layer, the organic layer, and the second inorganic layer on the base substrate overlap.Type: GrantFiled: April 29, 2021Date of Patent: February 18, 2025Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Pan Xu, Zhidong Yuan, Yongqian Li, Can Yuan
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Patent number: 12230210Abstract: A display substrate, including: a plurality of partition control signal lines disposed on a base substrate; and a plurality of sub-pixels disposed on the base substrate, at least one of the sub-pixels includes a pixel circuit and a light emitting device. The pixel circuit includes a switch transistor, a first partition control transistor, a drive transistor and a first initialization transistor. The first partition control transistor is electrically connected to the switch transistor, the first initialization transistor, the drive transistor and at least one partition control signal line. The first partition control transistor is configured to: in response to a partition control signal on the partition control signal line, selectively transmit a received first initialization signal to a gate electrode of the drive transistor in an initialization phase, and selectively transmit a received data signal to the gate electrode of the drive transistor in a data writing phase.Type: GrantFiled: September 30, 2022Date of Patent: February 18, 2025Assignees: Heifei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Liu Wu, Can Yuan, Zhidong Yuan, Cheng Xu, Luke Ding, Yongqian Li, Xiuting Liu