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公开(公告)号：US11227541B2
公开(公告)日：2022-01-18
申请号：US16073988
申请日：2018-01-04
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Chen Song
IPC: G09G3/3208
Abstract: An image display drive device, a display device and an electrical compensation method are disclosed. The image display drive device includes a detection circuit and a data superposition circuit. The detection circuit is configured to obtain an electrical compensation data signal of a display panel; the data superposition circuit is configured to superpose the electrical compensation data signal and the initial driving data signal, so as to obtain a compensated driving data signal.
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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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公开(公告)号：US10140918B2
公开(公告)日：2018-11-27
申请号：US14777831
申请日：2015-02-27
Applicant: BOE Technology Group Co., Ltd.
IPC: G09G5/00 , G09G3/3233 , G09G3/20 , G09G3/3291
Abstract: An embodiment of the present disclosure provides an actively driven organic light-emitting display apparatus to eliminate a defect in which the current flowing through the lighting device in the actively driven organic light-emitting display apparatus is affected by the instable current caused by the instable threshold voltage of the drive transistor, so that the current flowing through the lighting device is accurate and make the brightness of the whole actively driven organic light-emitting display apparatus be even. The display apparatus comprises a light emitting device, a light emitting device drive unit, a first switch unit, a second switch unit, a current control unit and a resistor which constitute a feedback loop. An input terminal of the current control unit is input a data signal to control that the current of the light emitting device is only associated with the resistor, voltage of the input data signal and the supply voltage.
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4.发明授权公开(公告)号：US10916164B2
公开(公告)日：2021-02-09
申请号：US16348315
申请日：2018-08-28
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Chen Song , Tangxiang Wang , Zhan Gao , Song Meng , Dongfang Yang
IPC: G09G3/3233 , G09G3/00
Abstract: The present disclosure discloses a sampling method, a sampling control method, a sampling device, a sampling control device, a sampling control system, and a display device. The present disclosure provides a sampling method for sampling pixel units disposed on a display substrate, the method including: the controller controlling a plurality of sampling modules to be simultaneously turned on, so that a plurality of sampling modules controlled by the controller are capable of receiving luminance information of the pixel units obtained through sampling of the sampling channel; the controller sequentially controlling a group of sampling channels to be simultaneously turned on, so that the group of sampling channels simultaneously sample the luminance information, and transmit the sampled luminance information to respective sampling modules connected to the group of sampling channels through the output terminals of the group of sampling channels.
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5.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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Patent Agency Ranking
公开(公告)号：US10102798B2
公开(公告)日：2018-10-16
申请号：US15022359
申请日：2015-08-04
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Danna Song , Zhongyuan Wu , Junjie Lin , Cuili Gai , Lirong Wang , Chen Song , Szuheng Tseng
IPC: G06F3/038 , G09G3/3225 , G09G3/32 , G01R19/165
Abstract: The disclosure provides a detection circuit, a detection method and a drive system. The detection circuit comprises a switching unit, a reset unit and a comparison unit. The switching unit is used for switching the operations of the reset unit and the comparison unit. The reset unit is used for resetting the acquisition unit before the acquisition unit begins acquisition. The comparison unit is used for comparing a signal acquired by the acquisition unit with a standard signal to obtain a characterization quantity of the to-be-detected voltage.
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公开(公告)号：US20160307503A1
公开(公告)日：2016-10-20
申请号：US14777831
申请日：2015-02-27
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
IPC: G09G3/3233 , G09G3/20
CPC classification number: G09G3/3233 , G09G3/2007 , G09G3/3291 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2310/0291 , G09G2320/0233 , G09G2320/0295 , G09G2320/043 , G09G2320/045
Abstract: An embodiment of the present disclosure provides an actively driven organic light-emitting display apparatus to eliminate a defect in which the current flowing through the lighting device in the actively driven organic light-emitting display apparatus is affected by the instable current caused by the instable threshold voltage of the drive transistor, so that the current flowing through the lighting device is accurate and make the brightness of the whole actively driven organic light-emitting display apparatus be even. The display apparatus comprises a light emitting device, a light emitting device drive unit, a first switch unit, a second switch unit, a current control unit and a resistor which constitute a feedback loop. An input terminal of the current control unit is input a data signal to control that the current of the light emitting device is only associated with the resistor, voltage of the input data signal and the supply voltage.
Abstract translation: 本公开的实施例提供一种主动驱动的有机发光显示装置，以消除流过有源驱动的有机发光显示装置中的照明装置的电流受到由不稳定阈值引起的不稳定电流的影响的缺陷 驱动晶体管的电压，使得流过照明装置的电流是准确的，并使整个有源驱动的有机发光显示装置的亮度均匀。 显示装置包括构成反馈回路的发光装置，发光装置驱动单元，第一开关单元，第二开关单元，电流控制单元和电阻器。 电流控制单元的输入端子输入数据信号，以控制发光器件的电流仅与电阻器，输入数据信号的电压和电源电压相关联。
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公开(公告)号：US10943536B2
公开(公告)日：2021-03-09
申请号：US16441064
申请日：2019-06-14
Applicant: BOE Technology Group Co., Ltd.
Inventor： Tangxiang Wang , Chen Song
IPC: G09G3/3233
Abstract: Provided are an external compensation circuit and method, and display device in the field of display techniques. The external compensation circuit includes a regulation sub-circuit that may collect a driving current loaded to a light-emitting unit and a reference current from a reference current source, and regulate potentials at two nodes connected to a compensation sub-circuit according to the collected current, to enable the compensation sub-circuit to calibrate a data signal to be input to a pixel circuit according to a potential difference between the two nodes.
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公开(公告)号：US10825395B2
公开(公告)日：2020-11-03
申请号：US15558068
申请日：2017-02-17
Inventor： Lei Chen , Chen Song , Airong Liu , Tangxiang Wang , Xuelian Cheng
IPC: G09G3/3258 , G09G3/3233 , H01L27/32 , H01L51/52 , G09G3/3291 , G09G3/3283
Abstract: Disclosed are a circuit and a method for detecting a driving current of an organic light emitting diode display device, and an organic light emitting diode display device, the method includes: after detecting for a predetermined time period, obtaining an output voltage of the integrating circuit, and comparing the output voltage with at least one reference voltage; in the case that the output voltage and the reference voltage satisfy a predetermined condition, adjusting capacitance of a capacitor of the integrating circuit.
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10.发明授权公开(公告)号：US10411489B2
公开(公告)日：2019-09-10
申请号：US15576644
申请日：2017-07-17
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Chen Song , Airong Liu , Tangxiang Wang , Lei Chen
Abstract: A method is disclosed for controlling charging/discharging of a capacitor module. The capacitor module includes a plurality of branches connected in parallel, each of which includes a capacitor and a switch connected in series with the capacitor. The method includes measuring a first charge/discharge time for the capacitor module being charged/discharged from an initial voltage to an intermediate voltage, and To adjusting a second charge/discharge time for the capacitor module being further charged/discharged from the intermediate voltage to a target voltage by controlling on/off of at least one of the switches depending on the first charge/discharge time, the intermediate voltage being between the initial voltage and the target voltage. Also disclosed are an apparatus for controlling charging/discharging of a capacitor module and a display apparatus including the apparatus.
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