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公开(公告)号:US12236867B2
公开(公告)日:2025-02-25
申请号:US17789174
申请日:2021-09-30
Applicant: BOE Technology Group Co., Ltd.
Inventor: Lujiang Huangfu , Li Wang , Jianchao Zhu , Libin Liu , Yu Feng
IPC: G09G3/3233
Abstract: A pixel driving circuit is provided. The pixel driving circuit includes a storage capacitor (Cst) having a first capacitor electrode (Ce1) and a second capacitor electrode (Ce2); a driving transistor (Td) configured to generate a driving current; and a switch (SW) configured to control connection or disconnection between a gate electrode of the driving transistor (Td) and the first capacitor electrode (Ce1).
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公开(公告)号:US12230216B2
公开(公告)日:2025-02-18
申请号:US18245534
申请日:2022-05-31
Applicant: BOE Technology Group Co., Ltd.
Inventor: Jiangnan Lu , Zhenzhen Shan , Jianchao Zhu , Guangliang Shang , Xing Yao
IPC: G09G3/32 , G09G3/3266
Abstract: A scan circuit having a plurality of stages is provided. A respective stage includes a respective scan unit configured to provide a control signal to at least a row of subpixels. The respective scan unit includes an input subcircuit configured to receive a start signal or an output signal from a previous scan unit, a first processing subcircuit, a second processing subcircuit, and an output subcircuit. The output subcircuit includes a first output transistor. The input subcircuit includes a first input transistor and a second input transistor sequentially coupled between an input terminal and a first node. The first node is coupled to a gate electrode of the first output transistor. The first processing subcircuit includes a first switch transistor and a second switch transistor coupled between the first node and a first reference terminal. The first reference terminal is configured to receive a first reference signal.
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公开(公告)号:US12205540B2
公开(公告)日:2025-01-21
申请号:US17764395
申请日:2021-03-18
Applicant: BOE Technology Group Co., Ltd.
Inventor: Jiangnan Lu , Guangliang Shang , Xinshe Yin , Libin Liu , Jianchao Zhu , Hao Zhang , Ke Feng
IPC: G09G3/3233 , G09G3/3258 , G09G3/3266 , G09G3/36 , G11C19/28
Abstract: A shift register unit, a driving method thereof, a gate driving circuit and a display panel are provided. The shift register unit includes an input circuit, a reset circuit, a first output circuit and a second output circuit; the input circuit is configured to control a level of a first node in response to a first input signal; the reset circuit is configured to reset the first node in response to a reset signal; the first output circuit is configured to output a shift signal under control of the level of the first node; and the second output circuit is configured to, in a first phase, under control of the level of the first node, output a plurality of sub-pulses at the first output terminal as a first output signal in a case where the shift output terminal outputs a first level of the shift signal.
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公开(公告)号:US11610953B2
公开(公告)日:2023-03-21
申请号:US17352262
申请日:2021-06-19
Applicant: BOE Technology Group Co., Ltd.
Inventor: Mengyang Wen , Jianchao Zhu
IPC: H01L27/32
Abstract: Disclosed are a display substrate, an organic light-emitting diode display panel and a display device. The display substrate includes a base substrate and a pixel defining layer located on a side of the base substrate, wherein the pixel defining layer is provided with a plurality of sub-pixel openings, outer contour shapes and sizes of all the sub-pixel openings are the same, filling parts are arranged in at least parts of the sub-pixel openings, and for different sub-pixel openings, area ratios of the filling parts to the sub-pixel openings are different.
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公开(公告)号:US10679025B2
公开(公告)日:2020-06-09
申请号:US16034860
申请日:2018-07-13
Inventor: Jianchao Zhu , Hao Zhang
Abstract: A surface texture identification display device and a surface texture identification method are provided. The surface texture identification method has a first surface for being contacted with a textured surface. The surface texture identification display device includes: an opaque backplane; a plurality of electroluminescent pixel units, located between the opaque backplane and the first surface and arranged in a plurality of rows extending in a first direction and a plurality of columns extending in a second direction; an image sensor located on a side of the opaque backplane away from the first surface; and a plurality of imaging pinholes, passing through the opaque backplane and configured to image the textured surface onto the image sensor. In a plan view of the surface texture identification display device, the plurality of pixel units and the plurality of imaging pinholes are located within an effective display region.
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公开(公告)号:US20190181155A1
公开(公告)日:2019-06-13
申请号:US16049958
申请日:2018-07-31
Applicant: BOE Technology Group Co., Ltd.
Inventor: Yunfei Li , Lujiang Huangfu , Yipeng Chen , Jianchao Zhu
IPC: H01L27/12 , H01L29/786
Abstract: A display substrate and a manufacturing method thereof, and a display panel are provided. The display substrate includes at least one set of signal lines and at least one shielding structure disposed on a base substrate. The shielding structure is electrically connected to a DC power source. The shielding structure includes a shielding portion. Each set of signal lines includes a first signal line and a second signal line at different layers. Orthographic projections of first signal line and second signal line on base substrate overlap and have an overlapping region. Shielding portion is located between the first signal line and the second signal line, and insulated from the two signal lines. An orthographic projection of the shielding portion on base substrate at least partially overlaps the overlapping region. Since voltage on shielding structures is stable, thereby effectively avoiding crosstalk between the two signal lines in set of signal lines.
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公开(公告)号:US12262607B2
公开(公告)日:2025-03-25
申请号:US17631372
申请日:2021-02-20
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor: Qian Yang , Jianchao Zhu , Bo Wang , Jingquan Wang
IPC: H10K59/131 , G09F9/30 , H10K77/10
Abstract: A stretchable display panel has a plurality of island regions and a plurality of bridge regions. The island regions are arranged in an array. Every two adjacent island regions are connected with a bridge region in the bridge regions therebetween. The display panel includes a plurality of sub-pixels and a plurality of signal line groups. At least one sub-pixel is provided in each island region. The signal line groups are located in a same conductive layer. Each signal line group extends along bridge regions to island regions that are connected to the bridge regions. The signal line group includes a plurality of signal lines arranged in parallel and at intervals. Each signal line is electrically connected to sub-pixels in the island regions.
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公开(公告)号:US12190816B2
公开(公告)日:2025-01-07
申请号:US18556403
申请日:2023-01-29
Applicant: BOE Technology Group Co., Ltd.
Inventor: Yu Feng , Jianchao Zhu
IPC: G09G3/3233 , H10K59/131
Abstract: Provided are a display substrate, a display panel, and a display device. The display substrate includes a base substrate, pixel circuits, groups of data lines, and first power lines. At least one column of pixel circuits is electrically connected to at least one group of data lines and includes first and second pixel circuits alternately arranged in the second direction. The at least one group of data lines includes first and second data lines. For the at least one column of pixel circuits, input transistors of first and second pixel circuits are electrically connected to first and second data lines, respectively. In the first direction, the first data line, the first power line and the second data line are arranged in sequence, and input transistors of first and second pixel circuits are respectively located on a side of the first power line close to the first and second data line.
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公开(公告)号:US20230343285A1
公开(公告)日:2023-10-26
申请号:US17764395
申请日:2021-03-18
Applicant: BOE Technology Group Co., Ltd.
Inventor: Jiangnan Lu , Guangliang Shang , Xinshe Yin , Libin Liu , Jianchao Zhu , Hao Zhang , Ke Feng
IPC: G09G3/3233 , G11C19/28
CPC classification number: G09G3/3233 , G11C19/28 , G09G2310/0286 , G09G2300/0842 , G09G2310/08
Abstract: A shift register unit, a driving method thereof, a gate driving circuit and a display panel are provided. The shift register unit includes an input circuit, a reset circuit, a first output circuit and a second output circuit; the input circuit is configured to control a level of a first node in response to a first input signal; the reset circuit is configured to reset the first node in response to a reset signal; the first output circuit is configured to output a shift signal under control of the level of the first node; and the second output circuit is configured to, in a first phase, under control of the level of the first node, output a plurality of sub-pulses at the first output terminal as a first output signal in a case where the shift output terminal outputs a first level of the shift signal.
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10.
公开(公告)号:US11354927B2
公开(公告)日:2022-06-07
申请号:US16472438
申请日:2018-12-06
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor: Jianchao Zhu , Libin Liu
IPC: G06K9/00 , G06V40/13 , G06V10/147 , H01L27/32 , H01L51/56
Abstract: A fingerprint identification device, a display panel, a fabrication method thereof, and a display device are disclosed. The fingerprint identification device includes a fingerprint sensor, an aperture diaphragm, and a first shielding structure. The fingerprint sensor includes a plurality of sensing units; the aperture diaphragm is on a light incident side of the fingerprint sensor and includes an aperture through which light is allowed to be incident on at least one sensing unit of the fingerprint sensor; and the first shielding structure is on a side of the aperture diaphragm facing away from the fingerprint sensor, and surrounds at least a portion of the aperture.
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