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公开(公告)号：US20210049968A1
公开(公告)日：2021-02-18
申请号：US16823680
申请日：2020-03-19
Inventor： Zhidong Yuan , Yongqian Li , Can Yuan , Song Meng
IPC: G09G3/3291 , G09G3/3266
Abstract: Embodiments of the present disclosure provide a pixel circuit, a display panel, and a display device. The pixel circuit includes: a first transistor; a light emitting unit, a cathode being grounded; a second transistor; a third transistor; a fourth transistor; and a capacitor, a first terminal being coupled to the control electrode of the third transistor, and a second terminal being coupled to the second electrode of the third transistor.
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32.发明授权公开(公告)号：US10798372B2
公开(公告)日：2020-10-06
申请号：US16097815
申请日：2018-02-12
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Quanhu Li , Yicheng Lin , Yu Wang , Yue Wu , Song Meng , Yongqian Li , Pan Xu
IPC: G09G5/00 , H04N13/398 , H04N13/302 , G09G3/36 , G09G3/3233 , H04N13/341 , H04N13/315 , G09G3/00 , G09G3/20
Abstract: A 3D display driving method, a 3D display driving device and a display device are provided. The 3D display driving method includes, during each display period: within a display duration (2n−1)th for a left-eye image of a left-eye image frame, scanning a first gate line in an nth group of gate lines, and within a part of the display duration (2n−1)th for the left-eye image, scanning a second gate line in the nth group of gate lines; and within a display duration (2n)th for a right-eye image of a right-eye image frame, scanning the second gate line in the nth group of gate lines, n being a positive integer smaller than or equal to M, and M being an integer greater than 1.
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33.发明授权公开(公告)号：US10741146B2
公开(公告)日：2020-08-11
申请号：US15771937
申请日：2017-09-20
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Danna Song , Song Meng , Mingi Chu
IPC: G09G3/30 , G09G5/10 , G09G3/3258 , G09G3/3291
Abstract: The present disclosure discloses an electroluminescent display screen and brightness uniformity compensation method and system thereof, wherein the method comprises: performing test modeling based on a correspondence between an aging rule of an electroluminescent diode in the display screen and an aging rule of a thin film transistor (TFT) in the display screen to acquire a brightness uniformity compensation model; acquiring a first compensation parameter and a second compensation parameter required for compensating the TFT, and acquiring a current brightness ratio of the electroluminescent diode through invoking the brightness uniformity compensation model based on the compensation parameters; performing brightness uniformity compensation on the display screen based on the acquired current brightness ratio of the electroluminescent diode.
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公开(公告)号：US20200160784A1
公开(公告)日：2020-05-21
申请号：US16529352
申请日：2019-08-01
Inventor： Haixia Xu , Zhidong Yuan , Wenchao Bao , Can Yuan , Song Meng
IPC: G09G3/3233
Abstract: The present disclosure proposes a display control method and device, and a display panel. The display control method includes: acquiring a temperature compensation value of a row of pixel units in a display panel on which temperature compensation is currently performed; acquiring, according to the temperature compensation value, a brightness ratio corresponding to the temperature compensation value; and compensating for brightness of a row of pixel units in the display panel on which temperature compensation is not performed according to the brightness ratio.
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35.发明授权公开(公告)号：US10439630B2
公开(公告)日：2019-10-08
申请号：US15766085
申请日：2017-09-20
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Chen Song , Song Meng , Danna Song , Zhongyuan Wu
IPC: H03M1/12 , H03M1/50 , G09G3/00 , H03M1/10 , G09G3/3233
Abstract: The present application discloses an analog-to-digital conversion (ADC) circuit. The circuit includes an integral circuit including an operational amplifier and an integral capacitor. The circuit further includes a comparator and a timer. The operational amplifier includes a positive input terminal configured to receive a first voltage, a negative input terminal coupled to a signal-collection line configured to collect an analog current signal, and an output terminal configured to output a first output signal. The comparator is configured to compare the first output signal with a second voltage to generate a second output signal to the timer. The timer is configured to start a timing operation when the operational amplifier receives the analog current signal and end the timing operation when the second output signal changes. A binary data resulted from the timing operation characterizes a digital signal corresponding to the analog current signal.
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Patent Agency Ranking
36.发明申请公开(公告)号：US20190103059A1
公开(公告)日：2019-04-04
申请号：US16146425
申请日：2018-09-28
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Fei Yang , Song Meng , Yue Wu , Lirong Wang
IPC: G09G3/3258
Abstract: The present disclosure relates to a compensation circuit and a method for controlling the same, a display panel and a display device. The compensation circuit includes a sensing line for receiving a current from the source to the drain of the first transistor The compensation circuit includes a first switch having a terminal electrically connected to the sensing line. The compensation circuit includes a current sensor electrically connected to another terminal of the first switch and configured to determine a value of a current on the sensing line when the first transistor is turned on and the first switch is closed The compensation circuit includes a controller electrically connected to the current sensor and the data line for adjusting a data signal input to the data line according to the value of the current.
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公开(公告)号：US09947273B2
公开(公告)日：2018-04-17
申请号：US15220080
申请日：2016-07-26
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Song Meng , Danna Song , Yang Zhou , Fei Yang
IPC: G09G3/3258
CPC classification number: G09G3/3258 , G09G3/20 , G09G2300/043 , G09G2300/0452 , G09G2320/0233
Abstract: The present disclosure provides a voltage drop compensation method, a voltage drop compensation device and a display device. The voltage drop compensation method includes steps of determining a voltage drop for a power signal corresponding to each subpixel set; determining a first equivalent brightness reduction value corresponding to the voltage drop; calculating an initial brightness value for each subpixel in the subpixel set; calculating a sum of the first equivalent brightness reduction value corresponding to the subpixel set and the initial brightness value as a target brightness value for each subpixel in the subpixel set; and generating a driving signal for each subpixel in accordance with the target brightness value for each subpixel in the subpixel set, and outputting the driving signal.
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公开(公告)号：US12062318B2
公开(公告)日：2024-08-13
申请号：US17766696
申请日：2021-06-29
IPC: G09G3/20 , G09G3/3233
CPC classification number: G09G3/2096 , G09G3/2074 , G09G3/3233 , G09G2300/0842 , G09G2320/0233 , G09G2360/16
Abstract: A method for driving a display panel is provided. The method includes receiving image data of a frame of image, the image data including a plurality of initial grayscale values respectively for a plurality of subpixels in the display panel; and converting the image data into a converted image data including a plurality of converted grayscale values respectively for the plurality of subpixels. Converting the image data includes compensating a respective initial grayscale value for a respective subpixel by at least a respective delay-compensating factor to obtain a respective converted grayscale value. With respect to a p-th subpixel and a q-th subpixel respectively connected to a respective data line and having a same initial grayscale values, a p-th delay-compensating factor for the p-th subpixel is greater than a q-th delay-compensating factor for the q-th subpixel.
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公开(公告)号：US11527214B2
公开(公告)日：2022-12-13
申请号：US17428178
申请日：2021-01-20
Inventor： Song Meng , Zhongyuan Wu
IPC: G09G3/36 , G09G3/20 , G09G3/3208
Abstract: An image processing method, an image processing circuit and a display apparatus are provided. The image processing method includes: converting an RGB gray-scale value of each pixel in a current image frame into an RGB luminance value; converting the RGB luminance value into a first RGBW luminance value; determining a luminance level of the current image frame according to the first RGBW luminance value corresponding to each pixel; determining a luminance gain value of the current image frame according to the luminance level of the current image frame; calculating a second RGBW luminance value according to the luminance gain value and the first RGBW luminance value; and converting the second RGBW luminance value into an RGBW gray-scale value.
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40.发明授权公开(公告)号：US11270642B2
公开(公告)日：2022-03-08
申请号：US16674531
申请日：2019-11-05
Inventor： Meng Li , Yongqian Li , Song Meng , Zhidong Yuan , Can Yuan , Haixia Xu , Wenchao Bao
IPC: G06F3/038 , G09G3/3258
Abstract: A pixel unit includes a first sub-pixel circuit and a second sub-pixel circuit. The first sub-pixel circuit includes a first sub-pixel driving circuit and a first light-emitting element, and the second sub-pixel circuit includes a second sub-pixel driving circuit and a second light-emitting element. The first sub-pixel driving circuit and the second sub-pixel driving circuit are connected to a first data line, and the first sub-pixel driving circuit is connected to a first gate line, the second sub-pixel driving circuit is connected to the second gate line. The first sub-pixel driving circuit is configured to drive the first light-emitting element by a data voltage on the first data line under the control of the first gate line. The second sub-pixel driving circuit is configured to drive the second light-emitting element by the data voltage on the first data line under the control of the second gate line.
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