Patents by Inventor Hualing Yang
Hualing Yang 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: 20240292686Abstract: The present disclosure provides a display panel and a display device.Type: ApplicationFiled: March 7, 2022Publication date: August 29, 2024Inventors: Rui XU, Penghao GU, Guanqin CHEN, Bo WANG, Hui ZHAO, Wenxiu ZHU, Hualing YANG
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Publication number: 20240290233Abstract: A control method and a control device for a current detection apparatus are provided, which are used to improve the accuracy of current detected by the current detection apparatus. A sensing control switch is controlled to be in an on state at a first time point before an integration operation is performed on the detection line; a current detection circuit is controlled to start the integration operation on a current of a detection line at the integration start time point to obtain an integrated voltage signal corresponding to the detection line; multiple samplings are performed on the integrated voltage signal, and an output voltage difference between different sampling points is determined; and the current of the detection line is determined based on the output voltage difference.Type: ApplicationFiled: June 25, 2021Publication date: August 29, 2024Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xinshe YIN, Hualing YANG, Xinbin HAN, Guangliang SHANG, Jianchao ZHU
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Publication number: 20240257756Abstract: A current detection device for detecting a current on the sense line, and compensating for a grayscale of a pixel in accordance with a difference in the detected currents, so as to provide the pixels with uniform brightness. An integration operation is performed on a sense line through an integration sub-circuitry to obtain an output voltage, and the current on the sense line is determined in accordance with the output voltage.Type: ApplicationFiled: June 25, 2021Publication date: August 1, 2024Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xinshe YIN, Guangliang SHANG, Hualing YANG, Xinbin HAN, Jianchao ZHU
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Publication number: 20240249675Abstract: A starting signal providing module, a starting signal providing method and a splicing display device are provided. The starting signal providing module comprises a detection circuit, a plurality of signal generating circuits and a plurality of enabling circuits. The signal generating circuit is configured to generate and provide a feedback signal to the detecting circuit when a last-stage scan driving signal output terminal of a scan driving circuit in a corresponding display panel outputs a valid scan driving signal. The detection circuit is configured to provide an enabling control signal to enabling circuits corresponding to at least two signal generating circuits according to the feedback signals from at least two signal generating circuits. The enabling circuit is configured to control a starting signal to be supplied to a scan driving circuit included in a corresponding display panel upon receiving the enabling control signal.Type: ApplicationFiled: November 12, 2021Publication date: July 25, 2024Inventors: Hualing YANG, Lina LIU, Wenxiu ZHU
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Publication number: 20240233631Abstract: A display controller, a display device, a display system, and a control method are provided. The display controller includes: a flag-signal circuit configured to send a flag-signal to an application processor; an image processing circuit configured to obtain second current image data in response to receiving first current image data from the application processor, wherein the first current image data is sent by the application processor in response to receiving the flag-signal sent from the flag-signal circuit; and a drive circuit configured to generate a first drive control signal in response to receiving the second current image data from the image processing circuit.Type: ApplicationFiled: May 31, 2022Publication date: July 11, 2024Inventors: Baoyun Wu, Yang Yu, Yuanzhang Zhu, Xuesong Tian, Xinbin Han, Shiming Shi, Hui Zhao, Hualing Yang
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Patent number: 11967285Abstract: A display panel includes sub-pixels and set voltage generation circuit(s); each sub-pixel includes a pixel driving circuit and a first light-emitting device, the pixel driving circuit includes at least a driving transistor and a sensing transistor, a first electrode of the sensing transistor is electrically connected to a sensing signal terminal; an output terminal of a set voltage generation circuit is electrically connected to a sensing signal terminal of at least one sub-pixel; the set voltage generation circuit is configured to generate a set voltage signal and transmit it to a sensing transistor of the at least one sub-pixel and a second electrode of a driving transistor of the at least one sub-pixel in a sensing period; and a voltage of the set voltage signal is substantially equal to a voltage of the second electrode of the driving transistor of the at least one sub-pixel in the driving period.Type: GrantFiled: March 4, 2022Date of Patent: April 23, 2024Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xinshe Yin, Xinbin Han, Hualing Yang
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Publication number: 20230368739Abstract: A display panel includes sub-pixels and set voltage generation circuit(s); each sub-pixel includes a pixel driving circuit and a first light-emitting device, the pixel driving circuit includes at least a driving transistor and a sensing transistor, a first electrode of the sensing transistor is electrically connected to a sensing signal terminal; an output terminal of a set voltage generation circuit is electrically connected to a sensing signal terminal of at least one sub-pixel; the set voltage generation circuit is configured to generate a set voltage signal and transmit it to a sensing transistor of the at least one sub-pixel and a second electrode of a driving transistor of the at least one sub-pixel in a sensing period; and a voltage of the set voltage signal is substantially equal to a voltage of the second electrode of the driving transistor of the at least one sub-pixel in the driving period.Type: ApplicationFiled: March 4, 2022Publication date: November 16, 2023Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xinshe YIN, Xinbin HAN, Hualing YANG
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Patent number: 11756457Abstract: The present disclosure provides a flexible display screen and a display device. The flexible display screen includes: a substrate; a backing film stacked on a side of the substrate facing away from a light-emitting surface of the flexible display screen; and a pressure sensor stacked on a side of the backing film facing away from the substrate and configured to output a signal related to a force applied on the flexible display screen.Type: GrantFiled: September 20, 2018Date of Patent: September 12, 2023Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Lina Liu, Hualing Yang
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Publication number: 20230015554Abstract: A display substrate and a preparation method therefor, and a display apparatus. The display substrate includes multiple pixel units each including multiple sub-pixels, the multiple sub-pixels includes first color sub-pixels. Each sub-pixel includes a color filter structure layer, the color filter structure layer includes a black matrix defining a pixel opening, and a color filter unit covering the pixel opening. The display substrate includes a first display region and a second display region on the periphery of the first display region. A black matrix in the first display region has small holes, which are filled with light filtering units, and the material of the light filtering units is same as the material of the color filter units of the first color sub-pixels. The area of the first color sub-pixels in the first display region is less than the area of the first color sub-pixels in the second display region.Type: ApplicationFiled: September 2, 2021Publication date: January 19, 2023Inventors: Wenxiu ZHU, Hualing YANG, Bo WANG
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Patent number: 11532273Abstract: An array substrate comprising a plurality of pixel units and an external compensation circuit; wherein, for each pixel unit of the plurality of pixel units, the pixel unit comprises a detection switch device, and the pixel unit is connected to a corresponding input end of a multiplexer of the external compensation circuit through the detection switch device; the external compensation circuit is configured: to acquire first data in a case that the detection switch device is opened, the first data comprising noise data caused by a level jump of the multiplexer of the external compensation circuit; to acquire second data in a case that the detection switch device is closed, the second data comprising the noise data and electrical data of the pixel unit; and to obtain the electrical data according to the first data and the second data.Type: GrantFiled: June 19, 2021Date of Patent: December 20, 2022Assignee: BOE Technology Group Co., Ltd.Inventors: Hualing Yang, Xinshe Yin
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Publication number: 20220068198Abstract: An array substrate comprising a plurality of pixel units and an external compensation circuit; wherein, for each pixel unit of the plurality of pixel units, the pixel unit comprises a detection switch device, and the pixel unit is connected to a corresponding input end of a multiplexer of the external compensation circuit through the detection switch device; the external compensation circuit is configured: to acquire first data in a case that the detection switch device is opened, the first data comprising noise data caused by a level jump of the multiplexer of the external compensation circuit; to acquire second data in a case that the detection switch device is closed, the second data comprising the noise data and electrical data of the pixel unit; and to obtain the electrical data according to the first data and the second data.Type: ApplicationFiled: June 19, 2021Publication date: March 3, 2022Inventors: Hualing YANG, Xinshe YIN
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Publication number: 20210358342Abstract: The present disclosure provides a flexible display screen and a display device. The flexible display screen includes: a substrate; a backing film stacked on a side of the substrate facing away from a light-emitting surface of the flexible display screen; and a pressure sensor stacked on a side of the backing film facing away from the substrate and configured to output a signal related to a force applied on the flexible display screen.Type: ApplicationFiled: September 20, 2018Publication date: November 18, 2021Inventors: Lina LIU, Hualing YANG
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Patent number: 10878780Abstract: The present disclosure provides a brightness adjustment method and device for a display screen, a display screen and a display apparatus, belongs to the field of display technology, and can solve the problem of inaccurate brightness adjustment of a display screen. The brightness adjustment method for a display screen includes: controlling a light sensor to detect an intensity of ambient light in a transition interval after the display screen displays a frame of image; and adjusting brightness of the display screen according to the intensity detected by the light sensor.Type: GrantFiled: July 5, 2019Date of Patent: December 29, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Wenxiu Zhu, Hualing Yang
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Patent number: 10831324Abstract: The present disclosure provides a touch panel, including: a flexible substrate including a first region, a second region and a bendable region between the first region and the second region; a first touch sensing layer provided in the first region of the flexible substrate, configured to sense a touch position and connected to a flexible circuit board; a second touch sensing layer provided in the second region of the flexible substrate and configured to sense a touch pressure; and a signal line provided in the bendable region of the flexible substrate and having a first end extending to the first region to be connected to the flexible circuit board and a second end extending to the second region to be connected to the second touch sensing layer.Type: GrantFiled: August 2, 2018Date of Patent: November 10, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Lina Liu, Meizhu Zheng, Yuanyuan Li, Hualing Yang
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Patent number: 10748467Abstract: A display panel, a display method thereof and a display device are provided. The display panel includes a display area, a non-display area separated from the display area by the special-shape edge, and a driver chip, wherein the display area includes first pixels proximate to the special-shape edge, and second pixels away from the special-shape edge, and the first pixel is divided into a first part in the display area and a second part in the non-display area; and for the first pixel, the driver chip is configured: to determine a target grayscale value G of each first pixel according to G=255*K(1/2.2); and to replace the current grayscale value corresponding to the first pixel in the current grayscale database of the display panel with the target grayscale value G, to form a target grayscale database.Type: GrantFiled: June 7, 2019Date of Patent: August 18, 2020Assignee: BOE Technology Group Co., Ltd.Inventors: Hualing Yang, Lina Liu
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Patent number: 10636364Abstract: Embodiments of the disclosure provide a gamma voltage correction method and system for a display module. A display area of the display module includes adjacent first sub-display area and second-sub-display area, which are independently driven by different source drivers respectively. The method comprises performing gamma curve adjustment to the first sub-display area according to a target gamma curve to obtain a first data voltage corresponding to a first grayscale; driving the second sub-display area with the first data voltage so that the second sub-display area emits light; and regulating the first data voltage based on a difference in brightness between the first-sub-display area and the second-sub-display area when driven by the first data voltage respectively to obtain a second data voltage for driving the second sub-display area so as to reduce a brightness difference between the first sub-display area and the second sub-display area.Type: GrantFiled: September 28, 2018Date of Patent: April 28, 2020Assignees: BOE TECHNOLOGY GROUP CO. LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.Inventors: Hualing Yang, Lina Liu
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Patent number: 10620735Abstract: A force touch module, a manufacturing method thereof, a touch screen, and a display device are disclosed. The force touch module includes a first substrate, a second substrate, an insulation layer, a force sensor, a via hole, and a connection line. The second substrate is located on the first substrate. The insulation layer is located between the first substrate and the second substrate. The force sensor includes a first sensing electrode; the first sensing electrode is located between the insulation layer and the first substrate. The via hole passes through the second substrate and the insulation layer. The connection line is located on a side of the second substrate away from the first substrate, and the connection line is electrically connected with the first sensing electrode through the via hole.Type: GrantFiled: June 12, 2018Date of Patent: April 14, 2020Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.Inventors: Lina Liu, Hualing Yang
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Publication number: 20200066229Abstract: The present disclosure provides a brightness adjustment method and device for a display screen, a display screen and a display apparatus, belongs to the field of display technology, and can solve the problem of inaccurate brightness adjustment of a display screen. The brightness adjustment method for a display screen includes: controlling a light sensor to detect an intensity of ambient light in a transition interval after the display screen displays a frame of image; and adjusting brightness of the display screen according to the intensity detected by the light sensor.Type: ApplicationFiled: July 5, 2019Publication date: February 27, 2020Inventors: Wenxiu ZHU, Hualing YANG
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Patent number: 10553153Abstract: A method, a circuit and a display device for driving an organic light emitting diode, wherein a driving transistor (DTFT) for driving a display element is turned off by jumping one or more of a reference voltage input (Vref), a reset voltage input (Vinit) and a data signal input (Vdata) before beginning to output an EL high level (ELVDD) of a pixel compensation circuit and after beginning to output an EL low level (ELVSS), to overcome the splash screen phenomenon during power-up and direct current-direct current driving failure.Type: GrantFiled: August 30, 2016Date of Patent: February 4, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Ying Liu, Chenggeng Zhang, Zhaohui Meng, Hongwei Tian, Juanjuan Bai, Meng Shao, Wen Sun, Can Zheng, Hualing Yang
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Publication number: 20200035141Abstract: A display panel, a display method thereof and a display device are provided. The display panel includes a display area, a non-display area separated from the display area by the special-shape edge, and a driver chip, wherein the display area includes first pixels proximate to the special-shape edge, and second pixels away from the special-shape edge, and the first pixel is divided into a first part in the display area and a second part in the non-display area; and for the first pixel, the driver chip is configured: to determine a target grayscale value G of each first pixel according to G=255*K(1/2.2); and to replace the current grayscale value corresponding to the first pixel in the current grayscale database of the display panel with the target grayscale value G, to form a target grayscale database.Type: ApplicationFiled: June 7, 2019Publication date: January 30, 2020Inventors: Hualing YANG, Lina LIU