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公开(公告)号：US20210056871A1
公开(公告)日：2021-02-25
申请号：US16919503
申请日：2020-07-02
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Jiangnan Lu , Libin Liu , Shiming Shi
Abstract: The embodiments of the present disclosure provide a flexible display panel and a bending detection method of a flexible display panel. The flexible display panel includes a display region and a non-display region. The flexible display panel further includes a bending area for realizing a bending of the flexible display panel, the bending area running through the display region and the non-display region. A bending sensor for detecting a bending change of the flexible display panel is provided in a portion of the bending area in the non-display region.
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公开(公告)号：US10909920B2
公开(公告)日：2021-02-02
申请号：US16309203
申请日：2018-03-20
Inventor： Jianchao Zhu , Lujiang Huangfu , Yunfei Li , Can Zheng , Libin Liu , Yipeng Chen
IPC: G09G3/3233 , G09G3/3266
Abstract: A pixel driving circuit and a driving method, and a display device are provided. The driving circuit includes: a first switching element, a second switching element, a third switching element, a fourth switching element, a fifth switching element, a driving transistor, a sixth switching element, a first storage capacitor and a second storage capacitor.
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公开(公告)号：US10762833B2
公开(公告)日：2020-09-01
申请号：US16609255
申请日：2019-03-20
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Qiang Wang , Libin Liu
Abstract: The present disclosure relates to the field of display technologies, and provides a display panel and a driving method thereof, and a display device. The display panel includes: an ultrasonic echo acquisition circuit and a light emitting circuit. The acquisition circuit includes a first circuit and an ultrasonic wave receiving sensor, wherein the first circuit has a first node coupled to the ultrasonic wave receiving sensor, a second node and a third node coupled to a scan signal terminal, a fourth node and a fifth node coupled to a control signal terminal, and a sixth node being an output terminal. The light emitting circuit includes a second circuit and a light emitting diode.
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34.发明申请公开(公告)号：US20200258452A1
公开(公告)日：2020-08-13
申请号：US16642447
申请日：2019-03-19
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
IPC: G09G3/3258 , G09G3/3233 , H01L27/32
Abstract: A pixel circuit and a method of driving the same, a display panel and a method of forming the same and a display device are provided. The pixel circuit includes: a light-emitting element, a data writing sub-circuit, a storage sub-circuit and a driving transistor, where the driving transistor is a double-gate transistor. The data writing sub-circuit is configured to switch on or switch off a connection between the data line and the top gate of the driving transistor under a control of the gate line. The storage sub-circuit is configured to control a potential of the top gate of the driving transistor; the bottom gate of the driving transistor is connected to a first voltage input end; the first electrode of the driving transistor is connected to a power voltage input end, the second electrode of the driving transistor is connected to a first electrode of the light-emitting element; a second electrode of the light-emitting element is connected to a second voltage input end.
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公开(公告)号：US10453897B2
公开(公告)日：2019-10-22
申请号：US15310504
申请日：2016-03-28
Applicant: BOE Technology Group Co., Ltd.
Inventor： Long Wang , Libin Liu , Pan Li , Jiayang Zhao , Chun Jan Wang , Li Zhou
Abstract: An OLED display substrate, a touch display panel and a display device are provided. The OLED display substrate has a base substrate and a display region, the display region includes: a plurality of first sub-regions arranged at intervals and second sub-regions located between the first sub-regions; at least one OLED light-emitting unit located in the first sub-regions; a plurality of optical sensing units located in the second sub-regions, and first drive electrode lines and first transmission electrode lines connected with the optical sensing units and intersecting with each other; wherein, the optical sensing unit includes a photosensitive sensor, and the photosensitive sensor is configured to generate an electric signal according to a light intensity change of a sensed touch point; and the first drive electrode line and the first transmission electrode line are configured to provide the electric signal to determine a position of the touch point.
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Patent Agency Ranking
公开(公告)号：US12230204B2
公开(公告)日：2025-02-18
申请号：US18279621
申请日：2022-07-12
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
IPC: G09G3/3233 , G09G3/3225 , G09G3/3266 , G09G3/3275 , G09G3/3291 , H10K59/121 , H10K59/126
Abstract: Provided are a pixel circuit, a driving method, and a display device. The pixel circuit includes a light-emitting element, drive circuit, control circuit, first initialization circuit, first light-emitting control circuit and second light-emitting control circuit, wherein the control circuit causes a control terminal of the drive circuit to be electrically connected to a connection node under the control of a first scanning signal; the first initialization circuit writes a first initial voltage to the connection node under the control of a reset control signal; the first light-emitting control circuit causes a first voltage terminal to be conductively connected to a first terminal of the drive circuit under the control of a first light-emitting control signal; the second light-emitting control circuit causes a second terminal of the drive circuit to be conductively connected to a first electrode of the light-emitting element under control of a second light-emitting control signal.
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公开(公告)号：US12225781B2
公开(公告)日：2025-02-11
申请号：US17788605
申请日：2021-08-30
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yu Feng , Libin Liu , Jiangnan Lu
IPC: G09G3/3233 , G09G3/32 , H10K59/124 , H10K59/131
Abstract: An array substrate is provided. A respective pixel driving circuit of the array substrate includes a driving transistor, a storage capacitor, and a transistor having a gate electrode connected to a respective second gate line of a plurality of second gate lines, a first electrode connected to a first capacitor electrode of the storage capacitor, and a second electrode connected to a second electrode of a first reset transistor, the transistor being configured to receive a reset signal through the first reset transistor. An active layer of the driving transistor and an active layer of the transistor are spaced apart from each other by at least an insulating layer. The active layer of the driving transistor comprises a first semiconductor material. The active layer of the transistor comprises a second semiconductor material different from the first semiconductor material.
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公开(公告)号：US12211452B2
公开(公告)日：2025-01-28
申请号：US18572742
申请日：2023-05-31
Inventor： Miao Liu , Xueguang Hao , Libin Liu , Teng Chen , Xinyin Wu , Yong Qiao , Xing Yao , Jingquan Wang
IPC: G09G3/3266 , G09G3/20 , G09G3/3233 , G11C19/28 , H10K59/121 , H10K59/126
Abstract: The display substrate includes a shift register arranged on a base substrate, and the shift register includes a plurality of stages of driving circuits; a plurality of stages of the driving circuit are provided in the driving circuit area of the base substrate; a stage of driving circuit area includes a first area and a second area, and the first area is provided with a first type of transistor included in the driving circuit, a second type of transistor included in the driving circuit is provided in the second area; one side of the first area is a side of the power line away from the second area, and the other side of the first area is a side close to the second area of an active layer of the first type of transistor close to the second area.
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公开(公告)号：US12205541B2
公开(公告)日：2025-01-21
申请号：US17789918
申请日：2021-06-29
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Libin Liu , Jiangnan Lu , Shiming Shi , Li Wang
IPC: G09G3/3233
Abstract: An array substrate and a display device are provided. The array substrate includes a plurality of pixel driving circuits, each of which includes a driving transistor, a first light emitting control transistor, a compensation transistor, a first initialization transistor and a second initialization transistor; a first electrode of the first initialization transistor and a first electrode of the first light emitting control transistor are connected to a first node; a first electrode of the second initialization transistor and a first electrode of the compensation transistor are connected to a second node, a second electrode of the first initialization transistor is configured to receive the first initialization signal, and a cathode of the light emitting element is configured to receive a first driving signal, and a difference between a potential of the first initialization signal and a potential of the first driving signal is less than 1.5V.
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公开(公告)号：US12183256B2
公开(公告)日：2024-12-31
申请号：US18466619
申请日：2023-09-13
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Guangliang Shang , Jie Zhang , Jiangnan Lu , Mei Li , Libin Liu
IPC: G09G3/20 , G09G3/3266
Abstract: A gate driving unit includes a first input node control circuit and a charge pump circuit; the first input node control circuit controls to connect or disconnect the input terminal and the first input node under the control of a clock signal provided by the clock signal terminal; the charge pump circuit controls to convert a voltage signal of the first input node into a voltage signal of the first node under the control of an input clock signal provided by the input clock signal terminal when the voltage signal of the first input node is a first voltage signal.
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