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公开(公告)号：US20200058265A1
公开(公告)日：2020-02-20
申请号：US16609429
申请日：2019-03-28
Inventor： Min HE , Chun CAO , Wenchao BAO
Abstract: The present disclosure relates to a method for converting RGB image signals into RGBW image signals. The method includes converting RGB image signals of pixels of each received image frame into corresponding RGB luminance values respectively, performing a conversion from an RGB luminance value to an RGBW luminance value for each pixel, including performing a first conversion to the RGBW luminance value by determining a first conversion amount based on the corresponding RGB luminance value of the pixel to obtain a first RGBW luminance value of the pixel, performing a second conversion to the RGBW luminance value by determining a second conversion amount based on the first RGBW luminance values of the pixel and its adjacent one or more pixels to obtain a second RGBW luminance value of the pixel, and converting the second RGBW luminance values of the pixels of the image frame into corresponding RGBW image signals respectively.
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公开(公告)号：US20250095585A1
公开(公告)日：2025-03-20
申请号：US18294167
申请日：2022-09-26
Inventor： Yao ZHANG , Wenchao BAO , Xiaolong WEI , Miao LIU , Cheng XU , Qiang FEI
IPC: G09G3/3258 , G09G3/20
Abstract: A driving method and an apparatus, and a storage medium are provided. The driving method is applied to a pixel drive circuit, the pixel drive circuit including a drive transistor, the drive transistor including a second electrode and a third electrode; and the method includes: applying a data voltage acquired based on a reference gamma curve to the third electrode of the drive transistor, and applying a preset voltage to the second electrode of the drive transistor; a lowest voltage of the reference gamma curve is greater than a lowest voltage of a standard gamma curve, and the preset voltage is less than or equal to the lowest voltage of the reference gamma curve.
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公开(公告)号：US20250095523A1
公开(公告)日：2025-03-20
申请号：US18289120
申请日：2023-01-06
Inventor： Song MENG , Wenchao BAO , Cheng XU , Miao LIU
IPC: G09G3/00 , G09G3/20 , G09G3/3233
Abstract: Embodiments of the present disclosure provide a compensating method and apparatus for a display panel, and a display device. The method includes: acquiring sensing voltages of a target sub-pixel and a sub-pixel set, where the sub-pixel set includes a plurality of first sub-pixels, and the first sub-pixels are disposed within a set range around the target sub-pixel and have the same color as the target sub-pixel; determining, based on the sensing voltages of the target sub-pixel and the sub-pixel set, whether the target sub-pixel belongs to a defective pixel; replacing the sensing voltage of the target sub-pixel by a sensing voltage of a normal pixel in the sub-pixel set if the target sub-pixel belongs to the defective pixel; and electrically compensating the target sub-pixel based on the replaced sensing voltage.
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公开(公告)号：US20230260586A1
公开(公告)日：2023-08-17
申请号：US17417518
申请日：2020-12-29
Inventor： Zhidong YUAN , Yongqian LI , Can YUAN , Wenchao BAO
IPC: G11C19/28 , G09G3/3266
CPC classification number: G11C19/28 , G09G3/3266 , G09G2310/0286
Abstract: The present disclosure provides a shift register unit, a driving method, a gate driving circuit and a display device. The shift register unit includes a pull-down node control circuit; the pull-down node control circuit is electrically connected to an input terminal, a reset terminal, a first voltage terminal, a second voltage terminal and a pull-down node, respectively, and is configured to, under the control of an input signal provided by the input terminal and a reset signal provided by the reset terminal, control the pull-down node to be electrically conducted to the first voltage terminal or the second voltage terminal, and control to hold a potential of the pull-down node.
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Patent Agency Ranking
公开(公告)号：US20220284853A1
公开(公告)日：2022-09-08
申请号：US17701615
申请日：2022-03-22
Inventor： Wenchao BAO , Song MENG , Min HE , Huihui LI
IPC: G09G3/3225 , H05K1/18 , H01L51/52 , G09G3/00
Abstract: A display module includes a display panel, a power supply driver, a voltage signal line, a sampling resistor and a detection and control circuit. The voltage signal line is connected between the display panel and the power supply driver. The sampling resistor is connected in series with the voltage signal line. The detection and control circuit is connected to two ends of the sampling resistor and the power supply driver. The detection and control circuit is configured to: detect a voltage across the sampling resistor or a current flowing through the sampling resistor; and control the power supply driver to generate a driving voltage equal to a preset value lower than a voltage threshold, if determining that the voltage across the sampling resistor is greater than or equal to the voltage threshold, or if determining that the current is greater than or equal to a current threshold.
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公开(公告)号：US20220269123A1
公开(公告)日：2022-08-25
申请号：US17478267
申请日：2021-09-17
Inventor： Huihui LI , Wenchao BAO , Song MENG
IPC: G02F1/1345
Abstract: The present disclosure provides a chip on film and a display device. The chip on film includes: a first end, wherein a first row of bonding terminals and a second row of bonding terminals are arranged on a first surface of the first end, the first row of bonding terminals and the second row of bonding terminals are spaced apart and insulated from each other, and the first row of bonding terminals is closer to a center of the chip on film than the second row of bonding terminals; and a plurality of leads, extending in a second direction and including a first part and a second part. A first end section of each lead of the first part serves as one of the first row of bonding terminals, a first end section of each lead of the second part serves as one of the second row of bonding terminals.
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公开(公告)号：US20220122539A1
公开(公告)日：2022-04-21
申请号：US17417501
申请日：2020-12-09
Inventor： Wenchao BAO , Xiaolong WEI
IPC: G09G3/3258 , G09G3/00 , G09G3/3266
Abstract: The present disclosure provides method and device for processing compensation data to be applied to a pixel circuit, and a display panel. The method includes: receiving M compensation data; determining a first threshold range according to (i−N)-th to (i−1)-th standard data, wherein midpoint and length of the first threshold range both depend on the (i−N)-th to (i−1)-th standard data; judging whether an i-th compensation data is in the first threshold range or not; in response to the i-th compensation data being in the first threshold range, determining the i-th compensation data as qualified and using it as an i-th standard data; and in response to the i-th compensation data not being in the first threshold range, determining the i-th compensation data as unqualified, replacing it with an average value of the (i−N)-th to (i−1)-th standard data, and using the replaced i-th compensation data as the i-th standard data.
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公开(公告)号：US20210142726A1
公开(公告)日：2021-05-13
申请号：US16620681
申请日：2017-12-15
Inventor： Haixia XU , Yue WU , Can YUAN , Wenchao BAO
IPC: G09G3/3258 , G09G3/3266 , G09G3/3275
Abstract: Embodiments of the present disclosure provide a method for driving a pixel circuit, a pixel circuit, and a display panel. In this method, a zero-voltage signal is provided to a data signal terminal. A first ON signal is provided to a first scan signal terminal, a second ON signal is provided to a second scan signal terminal, and a first level data signal or the zero-voltage signal is provided to the data signal terminal. Next, a decreased data signal, a second level data signal and the zero-voltage signal are provided to the data signal terminal.
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公开(公告)号：US20210074224A1
公开(公告)日：2021-03-11
申请号：US16470662
申请日：2019-01-17
Inventor： Xiaolong WEI , Wenchao BAO , Min HE
IPC: G09G3/3291
Abstract: The embodiment of the present application provides a data processing method, wherein the data processing method is applied to a display panel comprising pixels arranged in an M×N array, the method comprising: obtaining voltage data corresponding to pixels of n adjacent columns in the ith row; determining, based on stored voltage data corresponding to pixels of n adjacent columns in (m−1) rows previous to the ith row, whether voltage data corresponding to a pixel in the ith row and jth column is abnormal; performing a filtering process on the voltage data corresponding to the pixel in the ith row and jth column if the voltage data corresponding to the pixel in the ith row and jth column is abnormal, such that a difference between a threshold voltage after the filtering process and an actual threshold voltage is less than or equal to a first threshold difference.
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