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公开(公告)号：US20210335258A1
公开(公告)日：2021-10-28
申请号：US16616195
申请日：2019-05-20
Inventor： Wenchao BAO , Min HE , Chun CAO
IPC: G09G3/3258 , G09G3/3291
Abstract: A method for driving a display panel and a display device are provided. The driving method includes supplying, during a data writing stage of each row of pixel circuits, a driving voltage VA[i] to the data line corresponding to each of the pixel circuits in a row, and supplying a compensation voltage VS to the second node of each of the pixel circuits in the row, and VA[i]=Vdata[i]+Vth[i]+VS, where Vdata[i] is an original data voltage of an ith pixel circuit of the pixel circuits, i is a positive integer, Vth[i] is a threshold voltage of the driving transistor of the ith pixel circuit, and a range from which a value of the compensation voltage VS is selected is [−Vth_min, 0), and Vth_min is a minimum value among all of the threshold voltages of the driving transistors of the pixel circuits of the display panel.
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公开(公告)号：US20200098301A1
公开(公告)日：2020-03-26
申请号：US16557082
申请日：2019-08-30
Inventor： Wenchao BAO , Qinghua ZOU
IPC: G09G3/20 , G09G3/3208
Abstract: The present disclosure provides a display apparatus, including: a plurality of pixels, at least one of which includes a red sub-pixel, a green sub-pixel, a first blue sub-pixel and a second blue sub-pixel. Blue light emitted by the first blue sub-pixel has a wave band of 400˜540 nm and blue light emitted by the second blue sub-pixel has a wave band of 420˜580 mn. The red sub-pixel and the green sub-pixel are combined with the first blue sub-pixel or the second blue sub-pixel to perform a RGB three-primary-color display. The present disclosure further provides a display method for the display apparatus.
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3.发明申请公开(公告)号：US20180137799A9
公开(公告)日：2018-05-17
申请号：US15323490
申请日：2016-02-25
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Min HE , Guangcai YUAN , Wenchao BAO
CPC classification number: G09G3/2092 , G09G3/20 , G09G2300/0408 , G09G2310/0245 , G09G2310/0267 , G09G2310/0286 , G09G2310/0291 , G09G2310/08 , G11C19/28
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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公开(公告)号：US20180031419A1
公开(公告)日：2018-02-01
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：US20250006121A1
公开(公告)日：2025-01-02
申请号：US18275228
申请日：2022-07-28
IPC: G09G3/3225 , G09G3/32
Abstract: Provided is a compensation method for a display device. The method includes: acquiring first detection voltages of the plurality of subpixels during a first shutdown compensation process; acquiring first position indication information based on the first detection voltages of the plurality of subpixels; and determining first compensation data based on the first position indication information. The first position indication information indicates column positions of pixels to which a plurality of first subpixels of the plurality of subpixels belong. The first compensation data includes first threshold compensation voltages of the plurality of subpixels, and an absolute value of a difference between the first threshold compensation voltage of the first subpixel and a first reference value is less than an absolute value of a difference between a second threshold compensation voltage of the first subpixel in the first compensation data and the first reference value.
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Patent Agency Ranking
公开(公告)号：US20240402966A1
公开(公告)日：2024-12-05
申请号：US18261152
申请日：2022-06-29
Inventor： Xiaolong WEI , Wenchao BAO , Song MENG , Yao ZHANG , Miao LIU , Cheng XU , Jingbo XU
IPC: G06F3/14
Abstract: A display device includes: a display screen, a drive circuit, a first controller and a second controller. The display screen includes a first display region and a second display region. The drive circuit is configured to transmit a control signal to at least one of the first controller or the second controller. The first controller is configured to, responding to the control signal, perform a display control on the first display region. The second controller is configured to, responding to the control signal, perform a display control on the second display region. A display time difference between the first display region and the second display region is less than a threshold time period.
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公开(公告)号：US20210241692A1
公开(公告)日：2021-08-05
申请号：US16957043
申请日：2020-01-22
Inventor： Min HE , Wenchao BAO , Chun CAO , Wei CHEN
IPC: G09G3/3258
Abstract: The present disclosure provides a set-voltage generation unit, a set-voltage generation method and a display device. The set-voltage generation unit includes a voltage generation circuit. The set-voltage generation unit is configured to generate a set voltage according to a gamma main voltage such that a ratio between a variation of the set voltage and a variation of the gamma main voltage is a voltage coefficient K, and K is a positive number less than or equal to 1.
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8.发明申请公开(公告)号：US20180247577A1
公开(公告)日：2018-08-30
申请号：US15720038
申请日：2017-09-29
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dongxu HAN , Tieshi WANG , Pan XU , Wenchao BAO , Chi ZHANG , Zhongyuan WU
CPC classification number: G09G3/006 , G09G3/30 , G09G2320/0673 , G09G2320/0693 , G09G2360/145
Abstract: A gamma voltage debugging method for an electroluminescent display device, including: turning on sub-pixels in a test region to a maximum luminance value, and recording a driving current of an electroluminescent element at this time as a maximum reference current; calculating reference current values corresponding to respective gray scales according to the maximum reference current and a preset formula; and driving the sub-pixels in the test region to emit light, and for each driving current equal to a reference current value, recording a driving voltage value corresponding to the gray scale value as a gamma voltage resulted from the debugging.
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公开(公告)号：US20250078746A1
公开(公告)日：2025-03-06
申请号：US18287305
申请日：2023-01-06
Inventor： Yao ZHANG , Wenchao BAO , Song MENG , Xiaolong WEI , Miao LIU , Cheng XU
IPC: G09G3/3233
Abstract: Provided is a method for sensing pixel internal data in a display device. The method includes: sensing pixel internal data for each line of pixel units to determine column sequence numbers of suspected abnormal pixel units in the line of pixel units; determining, based on a number of the suspected abnormal pixel units of each column sequence number in the at least three lines of pixel units, whether a sensing signal line corresponding to the column sequence number is an abnormal sensing signal line; and in a case that there is at least one abnormal sensing signal line, replacing pixel internal data of a column of pixel units corresponding to each abnormal sensing signal line with pixel internal data of at least one column of pixel units adjacent to the abnormal sensing signal line each time the pixel internal data of all pixel units is sensed.
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公开(公告)号：US20240321195A1
公开(公告)日：2024-09-26
申请号：US18257385
申请日：2022-06-24
IPC: G09G3/3225 , G02F1/1345 , G09G3/32 , G09G3/36 , H10K59/126 , H10K59/131
CPC classification number: G09G3/3225 , G02F1/13452 , G09G3/32 , G09G3/3648 , H10K59/126 , H10K59/131 , G09G2300/0426 , G09G2310/0291 , G09G2320/0219 , G09G2370/14
Abstract: A display module includes a display panel, at least one bonding circuit board, a plurality of chip-on-films, and a plurality of buffer devices. The at least one bonding circuit board each include first differential lines, and a first differential line includes a P-polarity differential sub-line and an N-polarity differential sub-line. An end of a chip-on-film is connected to the first differential line, and the other end of the chip-on-film is connected to the display panel. The buffer devices are arranged on the bonding circuit board, a buffer device is connected to ends, proximate to the chip-on-film, of the P-polarity differential sub-line and the N-polarity differential sub-line, and the buffer device is configured to reduce signal reflection between the first differential line and the chip-on-film.
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