Patents by Inventor Fangzhen Zhang
Fangzhen Zhang 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: 12293702Abstract: A pixel circuit includes a plurality of driving transistors and a plurality of gating sub-circuits. The plurality of driving transistors are configured to output different driving currents under control of a received control signal. Each gating sub-circuit is electrically connected to a respective selection signal terminal, a scanning signal terminal, a respective driving transistor and a light-emitting device, and is configured to be turned on under control of a scanning signal from the scanning signal terminal and a selection signal from the selection signal terminal to transmit a driving current from the connected driving transistor to the light-emitting device. Within a frame period, one of a plurality of selection signal terminals respectively electrically connected to the plurality of gating sub-circuits outputs a selection signal.Type: GrantFiled: July 25, 2023Date of Patent: May 6, 2025Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Fangzhen Zhang, Jing Niu, Shuang Sun, Zhenyu Zhang
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Patent number: 12268555Abstract: Embodiments of the present disclosure provide a flexible sensor, including a flexible substrate; a plurality of ultrasonic detectors, on the flexible substrate; and a plurality of detection circuits, respectively corresponding to the ultrasonic detectors; wherein each of the detection circuits is between the flexible substrate and the corresponding ultrasonic detector, and configured to drive the ultrasonic detector to emit an ultrasonic wave, and detect a detection signal output by the ultrasonic detector after receiving the ultrasonic wave; each of the ultrasonic detectors includes: a first electrode coupled to the corresponding detection circuit, a second electrode on a side of the first electrode away from the flexible substrate, and a piezoelectric induction layer between the first electrode and the second electrode; a plurality of holes are provided in a region other than a region where the detection circuits are located.Type: GrantFiled: September 28, 2020Date of Patent: April 8, 2025Assignee: BOE Technology Group Co., Ltd.Inventors: Tingting Zhou, Kuanjun Peng, Fangzhen Zhang, Yanan Niu, Jintao Peng, Jing Niu, Shuang Sun, Lubin Shi, Jinyu Ren
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Publication number: 20250040317Abstract: The present disclosure provides a display apparatus and a display panel. The display panel includes: a drive backplate, including a substrate and a drive circuit layer on the substrate, where the drive circuit layer includes drive circuit regions arranged at intervals and transparent regions around the drive circuit regions, the transparent region includes concave parts, and a number of layers in the respective concave parts of the drive circuit layer is less than a number of layers in the respective drive circuit regions; a side of the drive circuit regions of the drive circuit layer away from the substrate includes pads for connecting a light-emitting unit; a light-transmissive glue for filling the concave parts, and a surface of the light-transmissive glue away from the substrate is on a side of the pads away from the substrate. The present disclosure can improve display effect.Type: ApplicationFiled: June 29, 2022Publication date: January 30, 2025Inventors: Yanan NIU, Yan QU, Dongni LIU, Jinqian WANG, Jing NIU, Tingting ZHOU, Shuang SUN, Bin QIN, Hongwei TIAN, Fangzhen ZHANG, Wei WANG
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Publication number: 20240412682Abstract: A display substrate (910), comprising a plurality of pixel units (P11, P12, P21, P22) and at least one compensation circuit. At least one pixel unit (P11, P12, P21, P22) comprises: a main light-emitting unit and an auxiliary light-emitting unit; and the at least one compensation circuit is connected to the auxiliary light-emitting unit of the at least one pixel unit (P11, P12, P21, P22). The at least one compensation circuit is configured to measure the brightness or temperature of the at least one pixel unit (P11, P12, P21, P22) and control the auxiliary light-emitting unit of the at least one pixel unit (P11, P12, P21, P22) to emit light according to a measurement result.Type: ApplicationFiled: July 7, 2022Publication date: December 12, 2024Inventors: Weixing LIU, Kuanjun PENG, Bin QIN, Kai GUO, Tieshi WANG, Fangzhen ZHANG
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Patent number: 12167642Abstract: The present disclosure provides a display substrate and a display device. The display substrate includes a pixel circuit, and the pixel circuit includes a light-emitting element, a driving circuit and a capacitor circuit. The driving circuit is configured to drive the light-emitting element to emit light; a first terminal of the capacitor circuit is electrically connected to a control terminal of the driving circuit, and a second terminal of the capacitor circuit is electrically connected to a data writing-in node; the capacitor circuit includes at least two capacitors connected in parallel with each other.Type: GrantFiled: May 21, 2021Date of Patent: December 10, 2024Assignee: Beijing BOE Technology Development Co., Ltd.Inventors: Shuang Sun, Fangzhen Zhang, Jing Niu, Yanan Niu, Jintao Peng, Lubin Shi
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Publication number: 20240339462Abstract: An array substrate includes: a substrate, a trace layer, a plurality of second electrodes and one or more protective layers. The trace layer is provided on the substrate. The plurality of second electrodes are provided on a side of the substrate away from the trace layer, and the trace layer is electrically connected to the plurality of second electrodes. A protective layer is provided between the substrate and the trace layer, and/or another protective layer is provided between the substrate and the plurality of second electrodes.Type: ApplicationFiled: July 29, 2022Publication date: October 10, 2024Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Shuang SUN, Fangzhen ZHANG, Xinxing WANG
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Publication number: 20240297203Abstract: The present application provides a light emitting chip, a manufacturing method for the same, and a light emitting device, relating to the field of display technology. The light emitting chip includes a substrate and a plurality of light emitting units arranged in an array on the substrate. The light emitting unit includes at least one first electrode disposed on the substrate and a plurality of epitaxial wafers arranged in an array, at least two of the epitaxial wafers have different colors. Several epitaxial wafers in the epitaxial wafers share one of the first electrodes.Type: ApplicationFiled: May 30, 2022Publication date: September 5, 2024Applicant: BOE Technology Group Co., Ltd.Inventors: Shuang Sun, Fangzhen Zhang, Xinxing Wang, Jing Niu, Tingting Zhou, Wei Wang, Yanan Niu
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Publication number: 20240282263Abstract: A pixel driving circuit includes a data writing circuit, a light-emitting control circuit, a switching circuit and a light-emitting diode chip. The data writing circuit is electrically connected to a first scanning signal terminal, a data signal terminal and a first node. The light-emitting control circuit is configured to transmit a first voltage signal received at the first voltage signal terminal to a second node. The switching circuit includes switching transistors. The light-emitting diode chip is electrically connected to the second node. The light-emitting diode chip includes light-emitting portions. The light-emitting diode chip is configured to drive the light-emitting portions to emit light in different periods of time respectively or drive at least two light-emitting portions to emit light in a same period of time. At least part of the light-emitting portions are sequentially connected in series through at least one switching transistor.Type: ApplicationFiled: April 30, 2024Publication date: August 22, 2024Inventors: Weixing LIU, Kuanjun PENG, Bin QIN, Xue DONG, Fangzhen ZHANG, Wanpeng TENG, Tieshi WANG, Wanzhi CHEN, Kai GUO, Chunfang ZHANG
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Publication number: 20240274768Abstract: A display substrate includes: a base substrate, a display functional layer located on a first side surface of the base substrate, where the display functional layer includes an encapsulation layer, and a plurality of metal lines located on a second side surface of the base substrate, a first gap being provided between adjacent metal lines. A first orthographic projection of the encapsulation layer onto the base substrate at least partially does not overlap a second orthographic projection of the first gap onto the base substrate, and/or, a light-shielding layer is arranged at a side of the encapsulation layer facing the metal lines, the light-shielding layer is located on the first side surface of the base substrate, and a third orthographic projection of the light-shielding layer onto the base substrate at least partially overlaps the second orthographic projection.Type: ApplicationFiled: May 24, 2022Publication date: August 15, 2024Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Shuang Sun, Fangzhen Zhang, Jing Niu
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Publication number: 20240249660Abstract: The present disclosure provides a shift register unit, a gate driver circuit, and a display device, belonging to the field of display technology, which can solve the problem of unstable threshold voltage and current leakage of thin film transistors in existing shift register units. The shift register unit in the present disclosure includes: an input subcircuit, an output subcircuit, a pull-down control subcircuit, a pull-down subcircuit, a first noise reduction subcircuit, a first auxiliary control subcircuit, and a second auxiliary control subcircuit. The first auxiliary control subcircuit is configured to write the third reference level signal to the pull-down control node when the pull-down node is the first reference level signal, and control the pull-down subcircuit to be closed to control the first noise reduction subcircuit to be open.Type: ApplicationFiled: November 22, 2021Publication date: July 25, 2024Inventors: Jinyu REN, Haisheng LIU, Kuanjun PENG, Fangzhen ZHANG, Jinqian WANG, Guojing MA, Dan WANG, Wei WANG, Sha FENG
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Patent number: 12008960Abstract: A pixel driving circuit includes a data writing circuit, a light-emitting control circuit and a light-emitting diode chip. The data writing circuit is electrically connected to a first scanning signal terminal, a data signal terminal and a first node. The light-emitting control circuit is electrically connected to the first node, an enable signal terminal, a first voltage signal terminal and a second node, and is configured to transmit a first voltage signal received at the first voltage signal terminal to the second node. The light-emitting diode chip is electrically connected to the second node and a second voltage signal terminal. The light-emitting diode chip includes a plurality of light-emitting portions. The light-emitting diode chip is configured to drive the plurality of light-emitting portions to emit light in different periods of time respectively or drive at least two light-emitting portions to emit light in a same period of time.Type: GrantFiled: November 22, 2021Date of Patent: June 11, 2024Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Weixing Liu, Kuanjun Peng, Bin Qin, Xue Dong, Fangzhen Zhang, Wanpeng Teng, Tieshi Wang, Wanzhi Chen, Kai Guo, Chunfang Zhang
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Publication number: 20240186454Abstract: A light-emitting device includes a first semiconductor layer, a light-emitting functional layer and a second semiconductor layer that are stacked. The first semiconductor layer includes a first semiconductor pattern and a second semiconductor pattern. The light-emitting functional layer includes a first light-emitting pattern and a second light-emitting pattern spaced apart. The second semiconductor layer includes a third semiconductor pattern and a fourth semiconductor pattern spaced apart. Orthographic projections of the first semiconductor pattern, the first light-emitting pattern and the third semiconductor pattern on a reference plane at least partially overlap to form a first light-emitting portion. Orthographic projections of the second semiconductor pattern, the second light-emitting pattern and the fourth semiconductor pattern on the reference plane at least partially overlap to form a second light-emitting portion.Type: ApplicationFiled: May 31, 2021Publication date: June 6, 2024Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Weixing LIU, Kuanjun PENG, Xiaolong LI, Wanpeng TENG, Bin QIN, Wanzhi CHEN, Fangzhen ZHANG, Chunfang ZHANG, Zhiqiang XU
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Patent number: 11973166Abstract: A displaying base plate and a fabricating method thereof. The displaying base plate includes a substrate, and a first flat layer on one side of the substrate; a first metal layer on one side of the first flat layer that is further away from the substrate; a second flat layer on sides of the first metal layer and the first flat layer that are further away from the substrate; and a second metal layer on one side of the second flat layer that is further away from the substrate; wherein the first metal layer includes a first metal trace, an orthographic projection of the second metal layer on the substrate and an orthographic projection of the first metal trace on the substrate have an overlapping part, and an orthographic projection of the second flat layer on the substrate covers the orthographic projection of the first metal trace on the substrate.Type: GrantFiled: June 7, 2021Date of Patent: April 30, 2024Assignee: BOE Technology Group Co., Ltd.Inventors: Lubin Shi, Bin Qin, Liang Chen, Dongni Liu, Fangzhen Zhang, Ke Wang
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Publication number: 20240088328Abstract: A light-emitting device, a light-emitting substrate, and a method for manufacturing the light-emitting device. The light-emitting device includes at least one light-emitting structure. The light-emitting structure includes: a first semiconductor layer; a light-emitting layer; a second semiconductor layer, doping ions of the second semiconductor layer and a first semiconductor layer being oppositely charged; a barrier structure provided with an opening for exposing the second semiconductor layer, the orthographic projection of the opening on the base substrate being located in the orthographic projection of the light-emitting layer on the base substrate, and the area of the opening being smaller than that of the light-emitting layer; and a landing electrode located on the side of the barrier structure facing away from the second semiconductor layer, the landing electrode being in contact with the second semiconductor layer by means of the opening.Type: ApplicationFiled: October 22, 2021Publication date: March 14, 2024Inventors: Bin QIN, Kuanjun PENG, Weixing LIU, Fangzhen ZHANG, Xue DONG, Jintao PENG, Wanpeng TENG, Xiaolong LI, Shuang SUN, Wanzhi CHEN, Guangcai YUAN, Qian JIA
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Patent number: 11887400Abstract: A display substrate includes a base substrate, and a plurality of light emitters and a plurality of light sensors over the base substrate. The light emitters and light sensors are configured to respectively emit lights towards, and sense lights reflected by, a pattern to be detected, such as a fingerprint. At least one light emitter includes a first electrode, a light-emitting layer, and a second electrode, sequentially over the base substrate. At least one light sensor includes a third electrode, a photosensitive layer, and a fourth electrode, sequentially over the base substrate. The first electrode and the third electrode are integral or the second electrode and the fourth electrode are integral. A method of using the display substrate to identify a pattern such as a fingerprint can be employed by a display panel containing the display substrate.Type: GrantFiled: November 15, 2018Date of Patent: January 30, 2024Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jing Niu, Chengchung Yang, Fangzhen Zhang
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Publication number: 20230402001Abstract: A pixel circuit includes a plurality of driving transistors and a plurality of gating sub-circuits. The plurality of driving transistors are configured to output different driving currents under control of a received control signal. Each gating sub-circuit is electrically connected to a respective selection signal terminal, a scanning signal terminal, a respective driving transistor and a light-emitting device, and is configured to be turned on under control of a scanning signal from the scanning signal terminal and a selection signal from the selection signal terminal to transmit a driving current from the connected driving transistor to the light-emitting device. Within a frame period, one of a plurality of selection signal terminals respectively electrically connected to the plurality of gating sub-circuits outputs a selection signal.Type: ApplicationFiled: July 25, 2023Publication date: December 14, 2023Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Fangzhen ZHANG, Jing NIU, Shuang SUN, Zhenyu ZHANG
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Publication number: 20230274696Abstract: A pixel driving circuit includes a data writing circuit, a light-emitting control circuit and a light-emitting diode chip. The data writing circuit is electrically connected to a first scanning signal terminal, a data signal terminal and a first node. The light-emitting control circuit is electrically connected to the first node, an enable signal terminal, a first voltage signal terminal and a second node, and is configured to transmit a first voltage signal received at the first voltage signal terminal to the second node. The light-emitting diode chip is electrically connected to the second node and a second voltage signal terminal. The light-emitting diode chip includes a plurality of light-emitting portions. The light-emitting diode chip is configured to drive the plurality of light-emitting portions to emit light in different periods of time respectively or drive at least two light-emitting portions to emit light in a same period of time.Type: ApplicationFiled: November 22, 2021Publication date: August 31, 2023Inventors: Weixing LIU, Kuanjun PENG, Bin QIN, Xue DONG, Fangzhen ZHANG, Wanpeng TENG, Tieshi WANG, Wanzhi CHEN, Kai GUO, Chunfang ZHANG
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Patent number: 11728352Abstract: The present disclosure provides a driving substrate including: a flexible substrate base, a plurality of thin film transistors on the flexible substrate base and a first conductive pattern layer on a side of the thin film transistors distal to the flexible substrate base. The first conductive pattern layer includes: a plurality of first connection terminals in the display region and a plurality of signal supply lines in the bendable region. A first number of first connection terminals are electrically coupled to first electrodes of the plurality of thin film transistors. The plurality of signal supply lines are coupled to a second number of first connection terminals other than the first number of first connection terminals. At least one inorganic insulating layer including a hollowed-out pattern in the bendable region is between the first conductive pattern layer and the flexible substrate base.Type: GrantFiled: June 22, 2021Date of Patent: August 15, 2023Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xinhong Lu, Fangzhen Zhang, Guangcai Yuan, Zhanfeng Cao, Jiushi Wang, Ke Wang, Xiaoyan Zhu, Qi Qi, Jingshang Zhou, Zhaohui Qiang, Zhiwei Liang
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Publication number: 20230111185Abstract: The present disclosure provides a display substrate and a display device. The display substrate includes a pixel circuit, and the pixel circuit includes a light-emitting element, a driving circuit and a capacitor circuit. The driving circuit is configured to drive the light-emitting element to emit light; a first terminal of the capacitor circuit is electrically connected to a control terminal of the driving circuit, and a second terminal of the capacitor circuit is electrically connected to a data writing-in node; the capacitor circuit includes at least two capacitors connected in parallel with each other.Type: ApplicationFiled: May 21, 2021Publication date: April 13, 2023Inventors: Shuang SUN, Fangzhen ZHANG, Jing NIU, Yanan NIU, Jintao PENG, Lubin SHI
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Patent number: 11563197Abstract: The present application describes a display panel having a plurality of subpixels. Each of the plurality of subpixels has a light blocking region and a light transmissive region surrounding the light blocking region. Each of the plurality of subpixels in the light blocking region includes a first base substrate and a second base substrate facing each other; a first light emitting element and a first reflective block on a side of the first base substrate proximal to the second base substrate; and a second reflective block on a side of the second base substrate proximal to the first base substrate. The first reflective block and the second reflective block are configured to reflect light emitted from the first light emitting element to the light transmissive region thereby displaying an image.Type: GrantFiled: March 29, 2018Date of Patent: January 24, 2023Assignee: BOE Technology Group Co., Ltd.Inventors: Xiaolong Li, Fangzhen Zhang, Wei Qin, Kuanjun Peng