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公开(公告)号：US11335264B2
公开(公告)日：2022-05-17
申请号：US17294676
申请日：2020-08-07
Inventor： Zhidong Yuan , Xuehuan Feng , Yongqian Li , Can Yuan , Meng Li , Dongxu Han
IPC: G09G3/3241 , G09G3/3266
Abstract: A pixel circuit and a driving method thereof, and a display device, the pixel circuit being configured to drive a light-emitting element and including: a node control sub-circuit, which is configured to provide a first node with a signal of a data signal end and provide a second node with a signal of a control signal end under the control of a first scanning end; a driving sub-circuit, which is configured to provide the second node with a driving current under the control of the first node and the second node; a storage sub-circuit, which is configured to store electric charge between the first node and the second node; a reading sub-circuit, and the light-emitting element, which is electrically connected to the second node and a second power supply end, respectively.
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公开(公告)号：US10939564B2
公开(公告)日：2021-03-02
申请号：US16423878
申请日：2019-05-28
Inventor： Enming Xie , Dongxu Han , Wenchao Bao , Chun Cao
IPC: H05K1/02 , H05K1/11 , H05K1/18 , G02F1/13 , G02F1/1345 , H01L23/00 , H01L23/52 , H01L23/498 , G09G5/10 , H05K5/00 , G06F1/10
Abstract: A circuit board includes a substrate, an input binding region and at least two output binding regions disposed on the substrate. Each of the output binding regions includes a plurality of binding portions, and the number of the binding portions included in different output binding regions is different. The substrate is configured to output a signal received by the input binding region to respective binding portions included in each of the output binding regions.
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公开(公告)号：US10916194B2
公开(公告)日：2021-02-09
申请号：US16117134
申请日：2018-08-30
Applicant: BOE Technology Group Co., Ltd.
Inventor： Fei Yang , Yue Wu , Dongxu Han
IPC: G09G3/3258 , G09G3/3266 , G09G3/3233
Abstract: The present application provides a pixel compensation device, a pixel compensation method, a pixel driving device, a timing control module and a display apparatus. The pixel compensation device includes a luminance conversion unit, an emitting voltage calculation unit, an emitting voltage offset calculation unit and a data conversion unit. The data conversion unit is configured to read pre-stored emitting voltage offset compensation data for a driving transistor in a sub-pixel unit with respect to a gate-source voltage of the driving transistor and obtain corresponding first luminance compensation data based on the emitting voltage offset and the emitting voltage offset compensation data. The data conversion unit is further configured to generate source luminance data based on the luminance signal data and the first luminance compensation data and output the source luminance data to a source driving module.
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公开(公告)号：US10997913B2
公开(公告)日：2021-05-04
申请号：US16453233
申请日：2019-06-26
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dongxu Han , Tieshi Wang , Zhongyuan Wu , Yongqian Li , Chi Zhang , Jinxia Hu , Wei Chen , Pan Xu
IPC: G06F3/038 , G09G3/3233
Abstract: The present disclosure relates to a method and an apparatus for controlling a drive current of a display panel, an electronic device, and a storage medium. A standard drive current of the display panel is calculated based on the power function of the display panel. An actual drive current is detected in a working process of the display panel, and it is determined whether the actual drive current exceeds the standard by comparing the actual drive current with the standard drive current. The actual drive current is regulated if the actual drive current exceeds the standard.
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公开(公告)号：US10565909B2
公开(公告)日：2020-02-18
申请号：US15540752
申请日：2016-11-09
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Pan Xu , Guangcai Yuan , Yongqian Li , Dongxu Han
IPC: G09G3/00 , G09G3/3225
Abstract: A test method of a display panel and a test device are disclosed. The test method includes outputting a data signal of a preset test image to the display panel to cause plural light emitting elements to emit light according to the preset test image; outputting a starting signal to a scan circuit in the display panel to cause the scan circuit to output an active level of a switching circuit to the plural rows of first scan lines as connected, successively, according to a preset timing sequence; receiving a sensing signal from a sensor circuit, including voltage value information of a first terminal of every light emitting element; comparing the voltage value information of the first terminal of every light emitting element with the preset test image to obtain a test result. The test method solves the problem of missing detection of Mura.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20190147797A1
公开(公告)日：2019-05-16
申请号：US16035891
申请日：2018-07-16
Inventor： Can Yuan , Yongqian Li , Zhenfei Cai , Zhidong Yuan , Dongxu Han
IPC: G09G3/3233 , H01L51/52 , H01L27/32
Abstract: A detection method of a pixel circuit, a driving method of a display panel, a display device and a pixel circuit are provided. The pixel circuit includes a driving transistor, and the detection method includes a writing phase and a reading phase. The writing phase includes: writing a reference data voltage to a gate electrode of the driving transistor, and writing a first detection writing voltage to a first electrode of the driving transistor to turn on the driving transistor; and the reading phase includes: upon the driving transistor being turned off after a first predetermined time after writing the first detection writing voltage, reading a voltage of the first electrode of the driving transistor to obtain a first detection reading voltage for obtaining a threshold voltage of the driving transistor.
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公开(公告)号：US10714019B2
公开(公告)日：2020-07-14
申请号：US15989746
申请日：2018-05-25
Inventor： Zhidong Yuan , Can Yuan , Zhenfei Cai , Yongqian Li , Dongxu Han
IPC: G09G3/3275 , G09G3/3266 , G09G3/36 , G09G3/3233
Abstract: A brightness compensation method for a display apparatus, and a display apparatus are disclosed. The brightness compensation method includes: for each row of display units, turning on the row S times during a display time of one frame; inputting, to each display unit in the row a pixel data signal of the frame corresponding to the display unit, when the row is turned on for the i-th time; inputting, to a to-be-compensated display unit in the row, a compensation signal, and controlling other display unit than the to-be-compensated display unit in the row to present black, when the row is turned on for each time other than the i-th time; wherein both S and i are integers, S≥2, 1≤i≤S; for every two adjacent rows of display units, a time interval of same turning-ons of the latter and the former is the same.
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公开(公告)号：US10508949B2
公开(公告)日：2019-12-17
申请号：US15655953
申请日：2017-07-21
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dongxu Han , Tieshi Wang , Chi Zhang , Wenchao Bao , Min He , Pan Xu , Yongqian Li , Kun Cao , Yue Wu
Abstract: Disclosed is a data acquisition device for optical compensation including a platform for carrying a display panel; and a linear image acquisition module located above the platform. The linear image acquisition module is movable relative to the platform.
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公开(公告)号：US10210834B2
公开(公告)日：2019-02-19
申请号：US15573948
申请日：2017-05-15
Inventor： Min He , Haixia Xu , Dongxu Han , Meng Li
IPC: G11C19/00 , G09G3/36 , G11C19/28 , H03K17/284
Abstract: A gate integrated driving circuit for a display panel. The gate integrated driving circuit may comprise N reset circuits. For each of the N reset circuits, a first terminal thereof may be coupled to a reference signal terminal, a second terminal thereof may be coupled to signal output terminals of a set of input and output circuits respectively, a third terminal thereof may be coupled to control terminals of driving circuits of the set of input and output circuits respectively, and a fourth terminal thereof may be coupled to a clock signal terminal coupled to input terminals of the driving circuits of the set of input and output circuits respectively. N may be an integer of at least 3. The set of input and output circuits may contain two or more input and output circuits.
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公开(公告)号：US11443677B2
公开(公告)日：2022-09-13
申请号：US16772312
申请日：2020-02-19
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dongxu Han , Chi Zhang , Tieshi Wang , Zhongyuan Wu , Yongqian Li , Jinxia Hu
IPC: G09G3/20 , G09G3/3208
Abstract: The present disclosure relates to a display method of a display panel. The display method may include obtaining original luminance of three single color subpixels in each of the pixel units based on an image to be displayed; obtaining luminance compensation values of the three single color subpixels that need to be color compensated at a time of obtaining the luminance of the mixed color subpixel as the first substitute luminance; calculating luminance of the mixed color produced by the three single color subpixels in the pixel unit respectively based on each of the luminance of the three single color subpixels after color compensation; and setting input luminance of the single color subpixel having the smallest luminance of the mixed color as 0, and obtaining actual luminance of the other single color subpixels and the mixed color subpixel.
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