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131.发明授权公开(公告)号：US10573245B2
公开(公告)日：2020-02-25
申请号：US15537724
申请日：2016-10-18
Applicant: BOE Technology Group Co., Ltd.
Inventor： Quanhu Li , Yongqian Li , Song Meng
IPC: G09G3/3266 , G11C19/28 , G11C19/18 , G09G3/36
Abstract: A shift register unit and a driving method thereof, shift register and display device. The shift register unit including an input circuit (P1), a pull-down control circuit (P2), a pull-up control circuit (P3), a pull-up circuit (P4) and a pull-down circuit (P5); wherein the input circuit (P1) is connected to a first trigger signal end (STU), a first clock signal end (CLK1), a power level end (VGL) and a pull-up control node (Q), and is for utilizing a bootstrap effect to transfer a signal of the first trigger signal end (STU) to the pull-up control node (Q) without a threshold voltage loss. The shift register unit is for use in a display device, and resolves the problem of a display device having a non-uniform display, resulting in a poor displaying effect of a display device.
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公开(公告)号：US10553154B2
公开(公告)日：2020-02-04
申请号：US15744381
申请日：2017-06-30
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yongqian Li , Pan Xu , Zhidong Yuan
IPC: G09G3/3233 , G09G3/00 , G09G3/3266
Abstract: A method and an apparatus for detecting a driving circuit. The method includes: inputting a data signal, a gate line scanning signal, a voltage signal, and a first control signal with a first voltage level into a data input end, a gate scanning input end, a power source end and a voltage sensing end of the driving circuit, respectively; by inputting a second control signal with a second voltage level into a sensing-scanning input end, controlling a pixel storage capacitor to be charged, and measuring a first voltage of an OLED anode end; by inputting the second control signal with a third voltage level to the sensing-scanning input end, controlling the pixel storage capacitor to be discharged, and measuring a second voltage of the OLED anode end; and determining whether the driving circuit has abnormity or not according to the first voltage and the second voltage.
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公开(公告)号：US10551419B2
公开(公告)日：2020-02-04
申请号：US15965045
申请日：2018-04-27
Inventor： Xuehuan Feng , Yongqian Li
IPC: G01R27/26 , G09G3/00 , H03M1/08 , G09G3/3225 , G09G3/3233 , H03M1/12
Abstract: A capacitance value measurement method and a capacitance value measurement device are provided. The capacitance value measurement method includes steps of: acquiring a first mapping relation; setting a standard temperature t0 of one analog-to-digital conversion circuit; and turning off all switching elements of a corresponding switching circuit other than an Ath switching element, turning on the Ath switching element, measuring a real-time temperature t of an analog-to-digital conversion sub-circuit of the analog-to-digital conversion circuit, measuring a real-time capacitance value Cn of an nth testing point, and acquiring a parasitic capacitance value of an external compensation sense line connected to the Ath switching element at the real-time temperature t of the analog-to-digital conversion sub-circuit in accordance with the real-time capacitance value Cn and the first mapping relation, where A is a positive integer.
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134.发明授权公开(公告)号：US10510901B2
公开(公告)日：2019-12-17
申请号：US15127262
申请日：2015-09-24
Applicant: BOE Technology Group Co., Ltd.
Inventor： Longyan Wang , Yongqian Li , Cuili Gai , Quanhu Li , Baoxia Zhang , Jingwen Yin , Kun Cao , Zhongyuan Wu , Gang Wang
IPC: H01L29/76 , H01L29/786 , H01L27/12 , H01L27/32 , H01L29/417 , H01L29/423 , H01L29/66
Abstract: A thin film transistor and a fabrication method thereof, an array substrate and a display device are provided. The thin film transistor comprises a gate electrode, an active layer, a source electrode and a drain electrode. The source electrode and the drain electrode include a first conductive layer provided on the active layer, and an etching rate of a material of the first conductive layer is greater than an etching rate of a material of the active layer in an etching liquid. The problem that the active layer of the thin film transistor is easily corroded in a back channel etch process is avoided, a number of patterning processes is reduced, and fabrication cost is reduced.
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135.发明申请公开(公告)号：US20190371245A1
公开(公告)日：2019-12-05
申请号：US16334114
申请日：2018-01-04
Inventor： Can Yuan , Zhidong Yuan , Yongqian Li , Pan Xu , Wenchao Bao , Min He
IPC: G09G3/3258 , G09G3/3233 , G09G3/3275
Abstract: The present disclosure relates to a pixel driving compensation circuit. The pixel driving compensation circuit can detect and compensate a driving current of a sub-pixel in a pixel unit. The pixel unit includes first, second, and third sub-pixels and the first to third sub-pixels respectively include first, second, and third driving transistors. The pixel driving compensation circuit includes a first switching sub-circuit configured to be turned on in a first period to transmit a driving current output from the first driving transistor to a first detection line, second switching sub-circuit configured to be turned on in a second period to transmit a driving current output from the second driving transistor to a first detection line, and a third switching sub-circuit configured to be turned on in the first period to transmit a driving current output from the third driving transistor to a second detection line.
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Patent Agency Ranking
公开(公告)号：US10438542B2
公开(公告)日：2019-10-08
申请号：US15518335
申请日：2015-09-30
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yongqian Li , Longyan Wang , Cuili Gai
IPC: G09G3/3291 , G09G3/3225 , G09G3/3233
Abstract: A detection circuit, a detection method and a pixel driving circuit are disclosed in the embodiments of the present disclosure. The detection circuit comprises a first detection unit, a second detection unit, a load unit, a light emitting device and a driving unit. The first detection module connected to the driving unit and the load unit. The second detection unit is connected to the light emitting device and the load unit.
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公开(公告)号：US10235943B2
公开(公告)日：2019-03-19
申请号：US15220002
申请日：2016-07-26
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dongxu Han , Guangcai Yuan , Yongqian Li
IPC: G09G3/3291 , G09G3/3258 , G09G3/3266 , G09G3/3225
Abstract: The present disclosure provides a display panel, its controlling method and a display device. The display panel includes a plurality of pixel units, a plurality of gate scanning lines arranged on a display substrate and a plurality of data lines arranged on the display substrate and crossing the gate scanning lines. Each pixel unit includes a data writing module, a driving module and a light-emitting element. The data writing module is configured to apply a data voltage to the driving module under the control of a current-level gate scanning signal, and the driving module is configured to drive the light-emitting element to emit light in accordance with the data voltage. The data writing modules of N adjacent pixel units in an identical row are connected to an identical data line, and N is an integer greater than 1. The data voltage across the data line is applied to the data writing modules of the N adjacent pixel units in a time-division manner under the control of the current-level gate scanning signal.
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公开(公告)号：US20190066561A1
公开(公告)日：2019-02-28
申请号：US15956081
申请日：2018-04-18
Inventor： Can Yuan , Zhidong Yuan , Yongqian Li , Zhenfei Cai , Meng Li , Xuehuan Feng
Abstract: Embodiments of the present disclosure provide an array substrate, a display device. The array substrate comprises first power lines and second power lines disposed on a substrate, wherein the first power line crosses the second power line to define a pixel region, wherein the first power lines crosses the second power lines at intersection points, and the intersection points include a first intersection point where the first power line is electrically connected to the second power line and a second intersection point where the first power line is insulated from the second power line are insulated; the first intersection points for each of the first power supply lines and/or the first intersection points for each of the second power supply lines are distributed at intervals.
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公开(公告)号：US20180374405A1
公开(公告)日：2018-12-27
申请号：US15744381
申请日：2017-06-30
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yongqian Li , Pan Xu , Zhidong Yuan
IPC: G09G3/00 , G09G3/3266
Abstract: A method and an apparatus for detecting a driving circuit. The method includes: inputting a data signal, a gate line scanning signal, a voltage signal, and a first control signal with a first voltage level into a data input end, a gate scanning input end, a power source end and a voltage sensing end of the driving circuit, respectively; by inputting a second control signal with a second voltage level into a sensing-scanning input end, controlling a pixel storage capacitor to be charged, and measuring a first voltage of an OLED anode end; by inputting the second control signal with a third voltage level to the sensing-scanning input end, controlling the pixel storage capacitor to be discharged, and measuring a second voltage of the OLED anode end; and determining whether the driving circuit has abnormity or not according to the first voltage and the second voltage.
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公开(公告)号：US20180277043A1
公开(公告)日：2018-09-27
申请号：US15537724
申请日：2016-10-18
Applicant: BOE Technology Group Co., Ltd.
Inventor： Quanhu Li , Yongqian Li , Song Meng
IPC: G09G3/3266 , G09G3/36 , G09G3/34 , G11C19/28
Abstract: A shift register unit and a driving method thereof, shift register and display device. The shift register unit including an input circuit (P1), a pull-down control circuit (P2), a pull-up control circuit (P3), a pull-up circuit (P4) and a pull-down circuit (P5); wherein the input circuit (P1) is connected to a first trigger signal end (STU), a first clock signal end (CLK1), a power level end (VGL) and a pull-up control node (Q), and is for utilizing a bootstrap effect to transfer a signal of the first trigger signal end (STU) to the pull-up control node (Q) without a threshold voltage loss. The shift register unit is for use in a display device, and resolves the problem of a display device having a non-uniform display, resulting in a poor displaying effect of a display device.
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