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11.发明申请公开(公告)号：US20200273405A1
公开(公告)日：2020-08-27
申请号：US15931926
申请日：2020-05-14
Inventor： Fei YANG , Xiaolong WEI , Wenchao BAO , Min HE
IPC: G09G3/3258 , G09G3/3291
Abstract: A method for detecting a threshold voltage of a driving transistor includes: obtaining at least one first threshold voltage of at least one driving transistor when each driving transistor is driven by a corresponding first driving signal; obtaining a threshold reference voltage of the driving transistor according to the at least one first threshold voltage; obtaining a second driving signal of the driving transistor according to the threshold reference voltage and the first driving signal of the driving transistor, a value of the second driving signal being greater than a value of the first driving signal; and obtaining a second threshold voltage of the driving transistor when the driving transistor is driven by the second driving signal.
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公开(公告)号：US20200068704A1
公开(公告)日：2020-02-27
申请号：US16456332
申请日：2019-06-28
Inventor： Enming XIE , Xiaolong WEI , Chun CAO , Wenchao BAO
Abstract: The present disclosure provides a printed circuit board including a plurality of conductive layers separated by insulating medium and a plurality of connection structures. Each connection structure penetrates each of the conductive layers. The plurality of conductive layers comprises a first conductive layer in which first signal lines are located and a second conductive layer in which second signal lines are located, and the first and second signal lines are connected via the connection structures. Anti-pads surrounding the connection structures are provided on others of the plurality of conductive layers except the first and the second conductive layers. For a same connection structure, the anti-pads surrounding the connection structure include adjacent anti-pads and nonadjacent anti-pads. Size of the adjacent anti-pads in any direction parallel to the conductive layers is smaller than that of the nonadjacent anti-pads. The present disclosure also provides a display apparatus.
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公开(公告)号：US20180025690A1
公开(公告)日：2018-01-25
申请号：US15540775
申请日：2016-11-16
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Wenchao BAO , Guangcai YUAN
IPC: G09G3/3258 , G09G3/3266
CPC classification number: G09G3/3258 , G09G3/3225 , G09G3/3233 , G09G3/3266 , G09G2300/0814 , G09G2300/0823 , G09G2300/0852 , G09G2300/0861 , G09G2310/0254 , G09G2310/08 , G09G2320/043 , G09G2320/045 , G09G2330/028
Abstract: A pixel circuit and a driving method thereof, and a display panel including the same. The pixel circuit includes, a first module and a second driving circuit, the first driving circuit drives the light emitting circuit to emit light during a first period under control of a first scanning signal at the first scanning control terminal, and the second driving circuit drives the light emitting circuit to emit light during a second period under control of a second scanning signal at the second scanning control terminal, the first and the second period not overlapping with each other. A light emitting device is alternately driven to emit light by using two driving circuits, so that one driving circuit enters a recovery stage while the other driving circuit drives the light emitting device to emit light, and thus threshold voltage drift of driving transistor can be reduced, while lifespan thereof can be prolonged.
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14.发明申请公开(公告)号：US20170301276A1
公开(公告)日：2017-10-19
申请号：US15323490
申请日：2016-02-25
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Min HE , Guangcai YUAN , Wenchao BAO
Abstract: Embodiments of the present disclosure provide a shift register unit and a driving method thereof, a row scanning driving circuit and a display device. The shift register unit includes an input terminal, a reset terminal, and an output terminal, and further includes an input module configured to pull up the electric level at the first node, an output module configured to pull up the electric level at the output terminal, a reset module configured to pull down the electric level at the first node, and a first pull-down module configured to pull down the electric level at the output terminal. Embodiments of the present disclosure can solve the problem that the floating state of the row scanning driving circuit affects the output stability.
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15.发明申请公开(公告)号：US20250157371A1
公开(公告)日：2025-05-15
申请号：US18725165
申请日：2021-12-21
Inventor： Pengfei YIN , Mingi CHU , Jingbo XU , Huihui LI , Wenchao BAO
IPC: G09G3/00 , G09G3/3225 , G09G3/36
Abstract: A method and apparatus for compensating a display defect, a medium, an electronic device, and a display apparatus. The method comprises: selecting a pixel value of a normal region at the periphery of a defective region to perform interpolation with respect to the defective region, so as to determine a compensation pixel value for the defective region at a preset brightness level; and updating a pixel value of the defective region at the preset brightness level with the compensation pixel value.
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Patent Agency Ranking
公开(公告)号：US20250095563A1
公开(公告)日：2025-03-20
申请号：US18577122
申请日：2022-08-18
Inventor： Wenchao BAO , Zhidong YUAN , Xiaolong WEI , Min HE , Huihui LI
IPC: G09G3/3208 , G09G3/20
Abstract: A display method, including: performing a full-screen display refresh on a display panel at a first refresh rate; meanwhile, setting a refresh factor to n, where n is a positive integer; refreshing the local area of the display panel at the second refresh rate; increasing the refresh factor by m, where m is a positive integer; determining whether the refresh factor is greater than or equal to a set value; if yes, performing the full-screen display refresh on the display panel at the first refresh rate; setting the refresh factor to n; and if no, continuing refreshing the same local area of the display panel at the second refresh rate; increasing the refresh factor by m, where the second refresh rate is greater than the first refresh rate, and the second refresh rate is an integer multiple of the first refresh rate.
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公开(公告)号：US20240249679A1
公开(公告)日：2024-07-25
申请号：US18017052
申请日：2022-02-11
Inventor： Wenchao BAO , Xuehuan FENG , Pengfei YIN
IPC: G09G3/3233
CPC classification number: G09G3/3233 , G09G2300/0842 , G09G2310/08 , G09G2320/0247
Abstract: A display panel, a driving method thereof and a display apparatus, including: a plurality of sub-pixels. Each sub-pixel includes a pixel circuit, and the pixel circuit includes: a light-emitting device (L); a drive transistor (M0), configured to generate a drive current driving the light-emitting device (L) to emit light according to a data voltage at a light-emitting stage (T2); a voltage control circuit (10), coupled to the drive transistor (M0) and configured to input the data voltage into the drive transistor (M0) at a data writing stage (T1); and a black frame insertion control circuit (20), coupled to the drive transistor (M0) and configured to control the drive transistor (M0) to stop generating the drive current at a black frame insertion stage (T3) after the light-emitting stage (T2).
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公开(公告)号：US20240221607A1
公开(公告)日：2024-07-04
申请号：US17922502
申请日：2021-09-08
Inventor： Huihui LI , Wenchao BAO , Song MENG , Jingbo XU
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2310/08 , G09G2320/0242 , G09G2320/0295 , G09G2320/0693 , G09G2330/10
Abstract: An image dis play method applied to a display apparatus includes: establishing a correspondence table between a threshold voltage of a sub-pixel and a compensation voltage, the correspondence table including at least one adjustment interval, an adjustment interval including a first and second threshold voltage endpoint values, the first threshold voltage endpoint value being less than the second threshold voltage endpoint value; acquiring a threshold voltage of each sub-pixel; determining an adjustment interval in which the acquired threshold voltage is located according to the corresponding table; acquiring a compensation voltage corresponding to the acquired threshold voltage according to the correspondence table and the determined adjustment interval; and determining, in a case where the display apparatus is to display a black image, a data voltage required by each sub-pixel according to the acquired threshold voltage and the acquired compensation voltage.
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公开(公告)号：US20240169907A1
公开(公告)日：2024-05-23
申请号：US17779141
申请日：2021-07-21
Inventor： Xiaolong WEI , Song MENG , Jingbo XU , Pan LI , Wenchao BAO
IPC: G09G3/3233 , G09G3/20
CPC classification number: G09G3/3233 , G09G3/2096 , G09G2300/0842 , G09G2320/0233 , G09G2320/0257 , G09G2320/043
Abstract: A control device includes a memory and a processor. The memory is configured to store a time comparison table. The processor is configured to determine whether a displayed image is a still image. When the displayed image is determined to be a still image, the time comparison table is queried for a corresponding still image judgment duration according to an average pixel level and a type of the still image.
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公开(公告)号：US20210335250A1
公开(公告)日：2021-10-28
申请号：US16343760
申请日：2018-11-15
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Ming WANG , Wenchao BAO
IPC: G09G3/3258 , G09G3/3266
Abstract: The present disclosure relates to a technical field of display, and provides a scan signal adjusting method, a scan signal adjusting device, and a display panel. The scan signal adjusting method is used to adjust a scan signal of a control end of a switching transistor in a pixel driving circuit. The method includes obtaining a threshold voltage of the switching transistor and adjusting a voltage of the scan signal during a turn-off period according to the threshold voltage of the switching transistor.
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