Patents by Inventor Zhichong Wang
Zhichong Wang 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: 11495178Abstract: A pixel circuit includes a data writing sub-circuit, a light-emitting control sub-circuit and a driving sub-circuit. The data writing sub-circuit is connected to the driving sub-circuit, and is configured to write a data voltage signal into the driving sub-circuit and compensate it, in response to a first gate signal and a second gate signal. The light-emitting control sub-circuit is connected to the driving sub-circuit, and is configured to close a line between a first power supply voltage terminal and a second power supply voltage terminal, in response to a first enable signal and a second enable signal. The driving sub-circuit is configured to provide a driving current to a light-emitting device through the closed line according to the written data voltage signal. Phases of the first enable signal and the first gate signal are opposite, and phases of the second enable signal and the second gate signal are opposite.Type: GrantFiled: April 29, 2021Date of Patent: November 8, 2022Assignee: Beijing BOE Technology Development Co., Ltd.Inventors: Zhichong Wang, Fuqiang Li, Peng Liu, Xinglong Luan, Jing Feng
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Publication number: 20220328010Abstract: A pixel circuit and a driving method therefor, and a display substrate and a display device are disclosed. The pixel circuit includes a compensation circuit. The compensation circuit may output an initial power supply signal to a first node, and a driving circuit may drive a light-emitting element to emit light according to a potential of the first node and a second power supply signal provided by a second power supply end. And, each driving circuit which the display panel includes may start to work from the same bias situation and drive the corresponding light-emitting element to emit light.Type: ApplicationFiled: June 28, 2022Publication date: October 13, 2022Inventor: Zhichong Wang
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Publication number: 20220278183Abstract: Provided are an array substrate, a display panel and a display device. The array substrate includes multiple sub-pixel units arranged in an array. Each sub-pixel unit includes a pixel circuit structure and a light-emitting element; the pixel circuit structure includes a driving transistor, a first reset transistor and a second reset transistor; each of the driving transistor, the first reset transistor and the second reset transistor includes an active structure, a first insulating structure on the active structure, and a first metal layer structure on the first insulating structure; the active structure of the first reset transistor of an i-th row of sub-pixel unit is electrically coupled to an anode of the light-emitting element of the i-th row of sub-pixel unit, and is electrically coupled to the active structure of the second reset transistor of an (i+1)-th row of sub-pixel unit, i being an integer greater than 0.Type: ApplicationFiled: December 20, 2021Publication date: September 1, 2022Inventor: Zhichong WANG
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Patent number: 11417280Abstract: A pixel circuit and a driving method therefor, and a display substrate and a display device are disclosed. The pixel circuit includes a compensation circuit. The compensation circuit may output an initial power supply signal to a first node, and a driving circuit may drive a light-emitting element to emit light according to a potential of the first node and a second power supply signal provided by a second power supply end. And, each driving circuit which the display panel includes may start to work from the same bias situation and drive the corresponding light-emitting element to emit light.Type: GrantFiled: February 4, 2020Date of Patent: August 16, 2022Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventor: Zhichong Wang
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Patent number: 11409202Abstract: Provided is a digital exposure control method, including: performing exposure of different types of functional areas of a substrate to be exposed through one or a plurality of full-page scans, wherein scan speeds for different types of functional areas of the substrate to be exposed are different.Type: GrantFiled: March 11, 2021Date of Patent: August 9, 2022Assignee: BOE Technology Group Co., Ltd.Inventors: Xinglong Luan, Fuqiang Li, Jing Feng, Zhichong Wang, Peng Liu, Guangcai Yuan, Xue Dong
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Publication number: 20220236585Abstract: The present disclosure provides a grating including: a first substrate including stacked first and second electrode layers each including strip-shaped electrodes with an identical width, strip-shaped electrodes in the first and second electrode layers arranged alternately; a second substrate opposite to the first substrate with a liquid crystal layer therebetween; driving modules for driving the strip-shaped electrodes to form light shading parts and light transmission parts, one light shading part and one adjacent light transmission part defining a grating unit, at least one grating unit defining a grating part, the driving modules arranged in one-to-one correspondence with the grating parts; and a control module for generating driving signals in one-to-one correspondence with the driving modules according to a distance between the human eyes and the grating, thereby changing a width of the grating unit corresponding to a crosstalk position. A 3D display device and a grating driving method are provided.Type: ApplicationFiled: November 18, 2020Publication date: July 28, 2022Inventors: Jinye ZHU, Sen MA, Zhichong WANG, Tao HONG, Junxing YANG, Jing YU, Tianyang HAN
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Patent number: 11393378Abstract: A gate driving circuit unit, a gate driving circuit and a display device are provided. The gate driving circuit unit includes a pull-up node noise-reduction circuit and a pull-up control circuit. The pull-up node noise-reduction circuit is electrically connected to an input end, a pull-down node and a pull-up node, and configured to control the pull-up node to be electrically connected to, or electrically disconnected from, the input end under the control of a potential at the pull-down node. The pull-up control circuit is electrically connected to the pull-up node and the input end, and configured to control the pull-up node to be electrically connected to the input end at an input stage.Type: GrantFiled: June 23, 2021Date of Patent: July 19, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zhichong Wang, Guangcai Yuan, Fuqiang Li, Liwei Liu, Jing Feng, Peng Liu, Xinglong Luan
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Patent number: 11380261Abstract: A pixel circuit, a pixel driving method and a display device are provided. The pixel circuit includes a light emitting element, a driving circuit, an energy storage circuit, an initialization circuit, a compensation control circuit, a light emitting control circuit and a written-in control circuit. The initialization circuit writes an initialization voltage into a control end of the driving circuit under the control of a first gate driving signal so as to conduct the connection between a first end of the driving circuit and a second end of the driving circuit; the compensation control circuit is configured to conduct the connection between the control end of the driving circuit and the second end of the driving circuit under the control of the second gate driving signal.Type: GrantFiled: January 20, 2020Date of Patent: July 5, 2022Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventor: Zhichong Wang
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Patent number: 11361703Abstract: A gate driving unit, a gate driving method, a gate driving circuit, a display panel and a display device are provided. The gate driving unit includes a start terminal, a first gate driving signal output terminal, a second gate driving signal output terminal, a pull-up control node control circuit, a pull-up node control circuit, configured to control a potential of a first pull-up node and a potential of a second pull-up node based on the potential of the pull-up control node, a first gate driving signal output circuit, a second gate driving signal output circuit, and a pull-down node control circuit, configured to control and maintain the potential of the pull-down node under the control of a third clock signal and a fourth clock signal, and control to reset the potential of the pull-down node under the control of the potential of the pull-up control node.Type: GrantFiled: March 28, 2019Date of Patent: June 14, 2022Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Peng Liu, Bailing Liu, Fuqiang Li, Zhichong Wang, Jing Feng, Xinglong Luan
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Publication number: 20220157223Abstract: The present application discloses a pixel circuit and a driving method thereof, and a display device. The circuit includes: a first initialization sub-circuit, a data writing circuit, a light emitting control circuit, a capacitor circuit, a drive transistor, a compensation circuit, a light emitting element, and a holding circuit; the first initialization sub-circuit is connected to a second terminal of the capacitor circuit and a gate of the drive transistor; the data writing circuit and the holding circuit are connected to a first terminal of the capacitor circuit; the light emitting control circuit is connected to a first electrode of the light emitting element and a second electrode of the drive transistor; a first electrode of the drive transistor is connected to the first power supply; a second electrode of the light emitting element is connected to a second power supply.Type: ApplicationFiled: June 23, 2021Publication date: May 19, 2022Inventors: Zhichong WANG, Xinglong LUAN, Peng LIU, Jing FENG, Gaoming SUN, Yi OUYANG
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Patent number: 11328652Abstract: A gate driving unit, a gate driving method, a gate driving circuit, a display panel and a display device are provided. The gate driving unit includes a start terminal, a first gate driving signal output terminal, a second gate driving signal output terminal, a pull-up control node control circuit, a pull-up node control circuit, configured to control a potential of a first pull-up node and a potential of a second pull-up node based on the potential of the pull-up control node, a first gate driving signal output circuit, a second gate driving signal output circuit, and a pull-down node control circuit, configured to control and maintain the potential of the pull-down node under the control of a third clock signal and a fourth clock signal, and control to reset the potential of the pull-down node under the control of the potential of the pull-up control node.Type: GrantFiled: March 28, 2019Date of Patent: May 10, 2022Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Peng Liu, Bailing Liu, Fuqiang Li, Zhichong Wang, Jing Feng, Xinglong Luan
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Publication number: 20220137515Abstract: A digital exposure apparatus includes a lens array, the lens array at least including a first lens unit and a second lens unit, a light transposition assembly arranged on an exit light path of the second lens unit, and the light transposition assembly being used for controlling a light exiting from the second lens unit to be transposed with respect to an exposure direction of the digital exposure apparatus. When the digital exposure apparatus is used for exposure, a light passing through the first lens unit and a light penetrating through the second lens unit are needed to expose the same position for multiple times.Type: ApplicationFiled: March 26, 2021Publication date: May 5, 2022Inventors: Jing FENG, Xinglong LUAN, Zhichong WANG, Peng LIU, Guangcai YUAN
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Publication number: 20220130309Abstract: A gate driving unit includes: a pull-up node denoising circuit; a pull-down node control circuit; a pull-up node control circuit; and an energy storage circuit. The pull-up node denoising circuit is configured to, under control of a potential of the pull-down node, control coupling or discoupling between the first pull-up node and the input terminal. The pull-down node control circuit is configured to, under control of a control voltage, control the potential of the pull-down node; under control of a potential of the second pull-up node, control coupling or discoupling between the pull-down node and the input terminal. The pull-up node control circuit is configured to, under control of an anti-leakage control voltage, control coupling or discoupling between the first pull-up node and the second pull-up node, and configured to maintain the potential of the second pull-up node. The energy storage circuit is configured to store electric energy.Type: ApplicationFiled: June 23, 2021Publication date: April 28, 2022Inventors: Zhichong WANG, Guangcai YUAN, Fuqiang LI, Jing FENG, Xinglong LUAN, Peng LIU
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Publication number: 20220130310Abstract: A gate driving circuit unit, a gate driving circuit and a display device are provided. The gate driving circuit unit includes a pull-up node noise-reduction circuit and a pull-up control circuit. The pull-up node noise-reduction circuit is electrically connected to an input end, a pull-down node and a pull-up node, and configured to control the pull-up node to be electrically connected to, or electrically disconnected from, the input end under the control of a potential at the pull-down node. The pull-up control circuit is electrically connected to the pull-up node and the input end, and configured to control the pull-up node to be electrically connected to the input end at an input stage.Type: ApplicationFiled: June 23, 2021Publication date: April 28, 2022Inventors: Zhichong WANG, Guangcai YUAN, Fuqiang LI, Liwei LIU, Jing FENG, Peng LIU, Xinglong LUAN
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Patent number: 11308838Abstract: A shift register includes a first transistor, a second transistor, a pull-up node and a switch sub-circuit. A control electrode of the first transistor is connected to a signal input terminal, a first electrode of the first transistor is connected to a first voltage terminal, and a second electrode of the first transistor is connected to a first control node. A control electrode of the second transistor is connected to a reset signal terminal, a first electrode of the second transistor is connected to a second voltage terminal, and a second electrode of the second transistor is connected to the first control node. The switching sub-circuit is connected to the first control node and the pull-up node, and is configured to control a line between the first control node and the pull-up node to be closed and opened.Type: GrantFiled: January 21, 2020Date of Patent: April 19, 2022Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zhichong Wang, Fuqiang Li, Jing Feng, Peng Liu, Xinglong Luan
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Patent number: 11270654Abstract: A pixel circuit, a display panel, and a method for driving a pixel circuit are disclosed. The pixel circuit includes a driving circuit, a data writing circuit, and a first light-emitting control circuit. The driving circuit is configured to control a driving current for driving a light-emitting component to emit light, the data writing circuit is configured to write a data signal into the driving circuit in response to a scanning signal, the first light-emitting control circuit is configured to apply a first voltage of a first voltage terminal to the driving circuit in response to a first light-emitting control signal, and the first light-emitting control signal and the scanning signal are provided by a same gate driving circuit.Type: GrantFiled: January 14, 2019Date of Patent: March 8, 2022Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventor: Zhichong Wang
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Patent number: 11263951Abstract: Disclosed is a shift register unit, including a first input circuit, an input control circuit, a pull-down control circuit, a pull-down circuit, an output circuit and a second input circuit. The first input circuit includes a first input sub-circuit, and is configured to, under control of the first signal input terminal, cause a voltage of the first voltage terminal to be output to a second terminal of the first input sub-circuit and output to the pull-up node via a first terminal thereof. The input control circuit is configured to pull down a potential of the second terminal to the potential of a first power supply voltage terminal under control of an enable signal terminal.Type: GrantFiled: August 14, 2018Date of Patent: March 1, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zhichong Wang, Haoliang Zheng, Seungwoo Han, Guangliang Shang, Lijun Yuan, Xing Yao, Mingfu Han
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Patent number: 11250750Abstract: A shift register circuit, a driving method thereof, a gate drive circuit and a display device are provided. The shift register circuit includes an input sub-circuit, an output sub-circuit, a discharge sub-circuit and a noise reduction sub-circuit. The input sub-circuit is connected to an input signal terminal, a first power source terminal and a pull-down node, and configured to, under the control of an input signal, output a first power source terminal signal to the pull-down node. In the shift register circuit, the discharge sub-circuit may control the potential of the pull-down node to be an ineffective potential at the input stage, thereby preventing the noise reduction sub-circuit from affecting the potentials of the pull-up node and the output terminal under the control of the pull-down node, and ensuring normal output of the shift register circuit.Type: GrantFiled: September 10, 2018Date of Patent: February 15, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zhichong Wang, Haoliang Zheng, Seungwoo Han, Guangliang Shang, Mingfu Han, Lijun Yuan, Xing Yao
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Publication number: 20220028948Abstract: The disclosure discloses an array substrate, an OLED display panel and a display device. A storage capacitor includes a first capacitor and a second capacitor which are connected in parallel, wherein the first capacitor includes a storage electrode and a first electrode, a layer where the first electrode is located is same as a layer where the grid electrode of the driving transistor is located, the second capacitor includes the storage electrode and a second electrode, a layer where the second electrode is located is same as a layer where the power supply voltage line is located, and the first electrode and the second electrode are electrically connected through a via hole penetrating through a first insulating layer and a second insulating layer.Type: ApplicationFiled: March 25, 2021Publication date: January 27, 2022Inventor: Zhichong WANG
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Patent number: 11232749Abstract: Disclosed are a pixel circuit and a driving method thereof, an array substrate and a display device. The pixel circuit includes: a driving circuit, including a control terminal, a first terminal and a second terminal, and configured to control a driving current flowing through the first terminal and the second terminal for driving a light-emitting element to emit light; and input circuit, configured to transmit a reset voltage and a data signal in response to a first scan signal; a reset circuit, configured to apply the reset voltage to the control terminal in response to a second scan signal; a compensation circuit, configured to store the data signal and to electrically connect the control terminal with the second terminal in response to a third scan signal; and a data writing circuit, configured to apply the data signal to the compensation circuit in response to the third scan signal.Type: GrantFiled: May 14, 2020Date of Patent: January 25, 2022Assignees: Ordos Yuansheng Optoelectronics Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Zhichong Wang, Fuqiang Li, Jing Feng, Peng Liu, Xinglong Luan, Gaoming Sun