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41.发明授权公开(公告)号：US11238801B2
公开(公告)日：2022-02-01
申请号：US16976563
申请日：2019-12-24
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yu Wang
IPC: G09G3/3233 , G09G3/3258 , G09G3/00 , G09G3/3291
Abstract: The present disclosure relates to a method and a device for obtaining a compensation parameter for pixel data, and an AMOLED display panel. The method for obtaining a compensation parameter for pixel data includes: obtaining a sensing voltage value of a driving transistor in each of pixel units in an AMOLED display screen in a first state; obtaining a sensing voltage value of a driving transistor in each of the pixel units in a second state; determining a compensation parameter of pixel data for each of the pixel units based on the sensing voltage values in the first state and the second state; the sensing voltage value refers to a potential value at a terminal of the driving transistor coupled with a display diode after the pixel data is written; the compensation parameter is used for compensating the pixel data in the subsequent display process.
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公开(公告)号：US11217174B2
公开(公告)日：2022-01-04
申请号：US16765470
申请日：2019-12-18
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yu Wang
IPC: G09G3/3258
Abstract: A method and device for compensating display voltage are disclosed in the present disclosure. The method includes: acquiring a first detected voltage and a second detected voltage corresponding to display voltages of a first preset value and a second preset value respectively, and calculating a ratio of the first detected voltage to the second detected voltage; acquiring a threshold voltage corresponding to the ratio of the first detected voltage to the second detected voltage from a preset correspondence table; acquiring a current display voltage; and calculating a compensation coefficient according to the threshold voltage; and compensating the current display voltage according to the threshold voltage and the compensation coefficient. Thus, the corresponding threshold voltage is acquired through the ratio of different detected voltages corresponding to the display voltages. The compensation coefficient is calculated according to the threshold voltage, and the current display voltage is compensated.
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公开(公告)号：US11170718B2
公开(公告)日：2021-11-09
申请号：US16839580
申请日：2020-04-03
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yi Cheng Lin , Quanhu Li , Cuili Gai , Yu Wang , Mingi Chu , Chien Pang Huang
IPC: G09G3/3258 , G09G3/3266 , G09G3/3275
Abstract: A display panel, a display device, and a compensating method are disclosed. The display panel includes: a plurality of sub-pixels arranged in rows and columns, a plurality of data lines connected to the plurality of sub-pixels, and a plurality of sensing driving lines connected to the plurality of sub-pixels, each of plurality of the sub-pixels includes a pixel circuit; the plurality of sub-pixels constitute a plurality of pixel units, the plurality of pixel units are arranged in a plurality of rows and a plurality of columns, and each of the plurality of pixel units includes four sub-pixels; pixel circuits of the four sub-pixels are connected to a same data line of the plurality of data lines; and the pixel circuits of the four sub-pixels are connected to four sensing driving lines of the plurality of sensing driving lines in a one-to-one correspondence manner.
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公开(公告)号：US10997898B2
公开(公告)日：2021-05-04
申请号：US17007120
申请日：2020-08-31
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Lirong Wang , Fei Yang , Yi Chen , Yu Wang , Mingi Chu
IPC: G09G3/20 , G09G3/3291
Abstract: The present disclosure provides a compensation method for a display panel, a compensation system for a display panel, and a display device. The display panel includes a plurality of sub-pixels, and the compensation method includes: respectively determining a current aging degree coefficient of each sub-pixel according to historical display data of the sub-pixel; and, for each sub-pixel, performing aging compensation on the sub-pixel according to the current aging degree coefficient of the sub-pixel when a current frame is displayed. The present disclosure further provides a compensation system for a display panel, and a display device.
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公开(公告)号：US10950482B2
公开(公告)日：2021-03-16
申请号：US16327425
申请日：2018-06-08
Inventor： Qinghua Zou , Shupeng Guo , Tingyuan Duan , Gu Yao , Ruhui Zhu , Yu Wang
IPC: H01L21/687 , H01L21/67
Abstract: A device for supporting a substrate, an apparatus for manufacturing a display panel, and a method for supporting a substrate are provided. The device for supporting a substrate comprises: a bearing mechanism being provided with a through hole for bearing a substrate; one or more sticky pads on the bearing mechanism surrounding the through hole, which are used for fixing the substrate on the bearing mechanism; and an elevating mechanism, which controls lifting and lowering of the substrate by passing through the through hole, wherein a top of the lifting mechanism is provided with a light-emitting member that emits light when in contact with the substrate, to illuminate the one or more sticky pads such that stickiness of the sticky pads is reduced from a first stickiness to a second stickiness.
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Patent Agency Ranking
公开(公告)号：US20200302887A1
公开(公告)日：2020-09-24
申请号：US16537106
申请日：2019-08-09
Inventor： Gang Chen , Zhihui Wang , He Sun , Xiuzhu Tang , Guang Wang , Yanli Zhao , Xiaolong Liu , Shuo Yang , Di Wang , Yu Wang
IPC: G09G3/36 , G02F1/1333
Abstract: A display apparatus and a control method for controlling a display apparatus are provided. The display apparatus includes: a display panel including multiple rows of scan lines and multiple columns of data lines, the scan lines and the data lines defining multiple sub-pixel regions, a first view pixel and a second view pixel being provided in each sub-pixel region; and a view control device connected with display panel, the view control device configured to: identify the number of users on a user side of display panel; and control a driving voltage of the scan lines according to the number of the users, so that the display panel controls first view pixel and second view pixel according to driving voltage so as to display a first view mode or a second view mode. A visual angle in the first view mode is greater than a visual angle in the second view mode.
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公开(公告)号：US20200035763A1
公开(公告)日：2020-01-30
申请号：US16454676
申请日：2019-06-27
Inventor： Gu YAO , Qinghua ZOU , Ruhui ZHU , Yu Wang , Tingyuan DUAN
IPC: H01L27/32 , G09G3/3208
Abstract: A display apparatus is provided. The display apparatus includes a display screen with two opposite surfaces, at least one of the two opposite surfaces is a display surface, a sounding structure is arranged at at least one side of the two opposite surfaces of the display screen, the sounding structure is configured to be deformed to sound under driving of sound signals, and the sound signals are electric signals applied to the sounding structure according to sounds to be made.
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48.发明授权公开(公告)号：US10446077B2
公开(公告)日：2019-10-15
申请号：US15535585
申请日：2016-12-09
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
IPC: G09G3/3233
Abstract: A driving method for preventing image sticking of a display panel upon shutdown, and a display device. The method includes: receiving a shutdown signal; and adjusting driving signals of a sub-pixel circuit of the display panel, so as to reduce the voltage difference between a gate electrode and a source electrode of a driving transistor of the sub-pixel circuit, and hence allowing the display panel to enter an image sticking prevention mode. The method can prevent image sticking of the display panel at the time of shutdown and hence improve the display quality.
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公开(公告)号：US20190206326A1
公开(公告)日：2019-07-04
申请号：US16043977
申请日：2018-07-24
Applicant: BOE Technology Group Co., Ltd.
Inventor： Lirong Wang , Quanhu Li , Fei Yang , Danna Song , Mingi Chu , Song Meng , Yu Wang , Yi Chen , Zhongyuan Wu
IPC: G09G3/3258 , G09G3/20 , H05B33/08
CPC classification number: G09G3/3258 , G09G3/2003 , G09G2310/0264 , H05B33/0857
Abstract: The disclosure discloses a method for driving a pixel circuit, a drive device and a display device. The method includes: receiving grayscale data to be displayed; determining a voltage compensation value, which corresponds to theoretical drive voltage corresponding to the grayscale data to be displayed, according to a pre-acquired correspondence relationship between theoretical drive voltage corresponding to respective grayscale data, and corresponding voltage compensation values; wherein the voltage compensation value is a voltage drop caused by a detection transistor and a drive transistor in the pixel circuit; and compensating the theoretical drive voltage corresponding to the grayscale data to be displayed with the determined voltage compensation value, and then driving a light-emitting diode in the pixel circuit to emit light.
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公开(公告)号：US20180240410A1
公开(公告)日：2018-08-23
申请号：US15549553
申请日：2017-02-17
Applicant: BOE Technology Group Co., Ltd.
IPC: G09G3/3291 , G09G3/3283 , G09G3/3266
Abstract: A driving method of an organic light-emitting display device, the display device includes a plurality of sub-pixels, each of the sub-pixels includes a driving transistor, an organic light-emitting diode and a sense line connected to the driving transistor and the organic light-emitting diode, the method includes: detecting threshold voltages of driving transistors of the sub-pixels or turn-on voltages of organic light-emitting diodes of the sub-pixels by sense lines; calculating a first driving voltage of a data driving circuit or a second driving voltage applied to anodes of the organic light-emitting diodes according to all detected threshold voltages or detected turn-on voltages respectively; and based on the first driving voltage or the second driving voltage, applying data driving voltages and supply voltages to the sub-pixels.
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