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51.发明授权公开(公告)号：US10825392B2
公开(公告)日：2020-11-03
申请号：US16395715
申请日：2019-04-26
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
IPC: G09G3/3233 , G09G3/00
Abstract: Embodiments of the present disclosure provide a data signal compensation method for a pixel circuit, including: inputting a test signal to the data signal line, and detecting a real-time voltage at the first node after a first preset time elapses; comparing the real-time voltage with a preset voltage, and in response to the real-time voltage being deviated from the preset voltage, adjusting an initial compensation value for a mobility, so as to make the real-time voltage be consistent with the preset voltage, wherein the preset voltage is set by obtaining an initial threshold voltage for the driving transistor; generating a compensation test signal and inputting the compensation test signal to the data signal line; and generating a test signal, inputting the generated test signal to the data signal line, and sensing a first voltage at the first node after a first preset time elapses as the preset voltage.
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公开(公告)号：US10755646B2
公开(公告)日：2020-08-25
申请号：US15549553
申请日：2017-02-17
Applicant: BOE Technology Group Co., Ltd.
IPC: G09G3/30 , G09G3/3291 , G09G3/3266 , G09G3/3283
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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53.发明申请公开(公告)号：US20200105191A1
公开(公告)日：2020-04-02
申请号：US16395715
申请日：2019-04-26
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
IPC: G09G3/3233 , G09G3/00
Abstract: Embodiments of the present disclosure provide a data signal compensation method for a pixel circuit, including: inputting a test signal to the data signal line, and detecting a real-time voltage at the first node after a first preset time elapses; comparing the real-time voltage with a preset voltage, and in response to the real-time voltage being deviated from the preset voltage, adjusting an initial compensation value for a mobility, so as to make the real-time voltage be consistent with the preset voltage, wherein the preset voltage is set by obtaining an initial threshold voltage for the driving transistor; generating a compensation test signal and inputting the compensation test signal to the data signal line; and generating a test signal, inputting the generated test signal to the data signal line, and sensing a first voltage at the first node after a first preset time elapses as the preset voltage.
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公开(公告)号：US10593265B2
公开(公告)日：2020-03-17
申请号：US16080466
申请日：2018-01-16
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
IPC: G09G3/3233 , G09G3/3225
Abstract: A compensation circuit and a manufacturing method thereof, a pixel circuit, a compensation device and a display device are disclosed. The OLED compensation circuit includes at least two sense transistors, the at least two sense transistors are in one-to-one correspondence with at least two sub-pixels in a pixel, and a first electrode of each of the sense transistors is electrically connected to a driving transistor of corresponding one of the sub-pixels; a magnitude relationship between channel width-to-length ratios of driving transistors of any two sub-pixels of the at least two sub-pixels is identical with a magnitude relationship between channel width-to-length ratios of two sense transistors corresponding to the two sub-pixels.
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55.发明授权公开(公告)号：US10510290B2
公开(公告)日：2019-12-17
申请号：US15038362
申请日：2015-12-10
Applicant: BOE TECHNOLOGY GROUP CO., LTD
Inventor： Danna Song , Zhongyuan Wu , Song Meng , Cuili Gai
IPC: G09G3/3225
Abstract: The present invention provides a display apparatus with display screen burn-ins prevention functions, comprising a calculation module configured to identify a set of to-be-adjusted grayscale edge pixels corresponding to a static display part in a detection area based on a plurality of sets of grayscale edge pixels identified from a plurality of images in the detection area at different time instances; a determination module configured to determine whether the set of to-be-adjusted grayscale edge pixels is an empty set; and an adjustment module configured to adjust intensity levels of the to-be-adjusted grayscale edge pixels when the determination module determines that the set of to-be-adjusted grayscale edge pixels is not an empty set.
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Patent Agency Ranking
56.发明授权公开(公告)号：US10332919B2
公开(公告)日：2019-06-25
申请号：US15744993
申请日：2017-07-17
Applicant: BOE Technology Group Co., Ltd.
Inventor： Quanhu Li , Ling Wang , Yongqian Li , Song Meng , Yue Wu
IPC: H01L27/12 , H01L27/32 , H01L51/52 , H01L51/56 , H01L51/50 , G09G3/3266 , G09G3/3275 , H01L21/77 , H01L23/50 , H01L27/02
Abstract: An organic light-emitting diode array substrate and a manufacturing method thereof and a display device are provided. The OLED array substrate includes a base substrate, a power line and a pixel structure disposed on the base substrate. The power line is disposed under the pixel structure and is at least partially overlapped with the pixel structure; an insulating layer is disposed between the power line and the pixel structure, and a first via hole structure is disposed in the insulating layer; and the power line is connected with a driving transistor in the pixel structure through the first via hole structure.
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公开(公告)号：US10283072B2
公开(公告)日：2019-05-07
申请号：US15565907
申请日：2017-05-04
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Abstract: A pixel circuit is provided which includes a data writing module, a drive module, a control module and an electrochromic device. The data writing module provides a data signal to the control terminal of the drive module under the control of a first control signal. The drive module drives the electrochromic device for color development or color fading according to a power supply voltage signal under the control of the data signal. The control module controls the conduction between the drive module and the electrochromic device on the basis of a second control signal, and the control module controls the conduction so that the conduction is realized later than the change in the power supply voltage signal. The pixel circuit effectively removes interference of the power supply voltage signal, avoids display fluctuations caused by the change in the power supply voltage signal, and further improves the display effect.
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公开(公告)号：US20190132583A1
公开(公告)日：2019-05-02
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: H04N13/398 , G09G3/3233 , G09G3/36 , H04N13/302
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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59.发明申请公开(公告)号：US20190123761A1
公开(公告)日：2019-04-25
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: H03M1/50 , G09G3/00 , G09G3/3233 , H03M1/10
CPC classification number: H03M1/50 , G09G3/006 , G09G3/3233 , G09G2300/0819 , G09G2300/0842 , G09G2320/0295 , H03M1/10
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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60.发明申请公开(公告)号：US20190013339A1
公开(公告)日：2019-01-10
申请号：US15744993
申请日：2017-07-17
Applicant: BOE Technology Group Co., Ltd.
Inventor： Quanhu Li , Ling Wang , Yongqian Li , Song Meng , Yue Wu
IPC: H01L27/12 , H01L27/32 , H01L51/52 , H01L51/50 , G09G3/3266 , G09G3/3275 , H01L51/56
CPC classification number: H01L27/1251 , G09G3/3266 , G09G3/3275 , H01L21/77 , H01L23/50 , H01L27/124 , H01L27/1262 , H01L27/3213 , H01L27/3246 , H01L27/3272 , H01L27/3276 , H01L51/5012 , H01L51/5206 , H01L51/5221 , H01L51/56
Abstract: An organic light-emitting diode array substrate and a manufacturing method thereof and a display device are provided. The OLED array substrate includes a base substrate, a power line and a pixel structure disposed on the base substrate. The power line is disposed under the pixel structure and is at least partially overlapped with the pixel structure; an insulating layer is disposed between the power line and the pixel structure, and a first via hole structure is disposed in the insulating layer; and the power line is connected with a driving transistor in the pixel structure through the first via hole structure.
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