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公开(公告)号：US10790351B2
公开(公告)日：2020-09-29
申请号：US16177754
申请日：2018-11-01
发明人： Xiaowei Wang , Guoqing Zhang
摘要： A display substrate and a manufacturing method thereof, and a display device are provided. The display substrate includes: a voltage conducting layer, at least part of which is in a display area; a voltage connecting terminal in a peripheral circuit area, and a conductive lead in the peripheral circuit area. The conductive lead includes: a first annular portion, a second annular portion, and a plurality of bridging portions. The first annular portion is connected to the voltage conducting layer, the second annular portion surrounds the first annular portion and connected to the voltage connecting terminal, and a first end and a second end of each bridging portion are connected to the first annular portion and the second annular portion respectively.
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公开(公告)号：US10726754B2
公开(公告)日：2020-07-28
申请号：US16190406
申请日：2018-11-14
发明人： Xiaowei Wang , Guoqing Zhang , Longfei Yang , Lei Wang , Ke Zhao , Weifeng Wang , Hongxia Yang , Meili Guo , Feiwen Tian
IPC分类号： G09G3/00 , G09G3/3225 , G09G3/3233
摘要： A defect detection circuit and a defect detection method for a light-emitting element, a display driving device, a display device, and a defect detection method for the display device are provided. The defect detection circuit includes a power source signal adjustment sub-circuit, a data signal adjustment sub-circuit, a first initial signal adjustment sub-circuit, a second initial signal adjustment sub-circuit and a storage capacitor connected to a control end of a driving transistor. The storage capacitor is configured to control the driving transistor to be turned off under the effect of a power source signal, a data signal and an initial signal, to enable the second initial signal adjustment sub-circuit to apply the initial signal to a light-emitting sub-circuit, thereby to enable the light-emitting sub-circuit to emit light. The display driving device includes the defect detection circuit.
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公开(公告)号：US10593264B2
公开(公告)日：2020-03-17
申请号：US15993832
申请日：2018-05-31
发明人： Xiaowei Wang , Guoqing Zhang , Hongxia Yang , Longfei Yang , Feiwen Tian , Lei Wang , Xuepeng Ji , Yu Fu , Haotian Chen , Meili Guo
IPC分类号： G09G3/3233 , G09G3/20
摘要： The present disclosure relates to a power supply device for a display panel, a manufacturing method, a power supplying method, and a display device. The power supply device may include: a first line surrounding the display panel and electrically connected to sub-pixels of the display panel; at least one first power supply terminal disposed at a first side of the display panel and connected to a first line segment of the first line located at the first side of the display panel; at least one second power supply terminal connected to a second line segment of the first line located at a second side of the display panel to compensate for a voltage drop of the first power supply terminal on the first line. The first side and the second side of the display panel are opposite sides of the display panel.
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公开(公告)号：US20190252487A1
公开(公告)日：2019-08-15
申请号：US16177754
申请日：2018-11-01
发明人： Xiaowei Wang , Guoqing Zhang
IPC分类号： H01L27/32
摘要： A display substrate and a manufacturing method thereof, and a display device are provided. The display substrate includes: a voltage conducting layer, at least part of which is in a display area; a voltage connecting terminal in a peripheral circuit area, and a conductive lead in the peripheral circuit area. The conductive lead includes: a first annular portion, a second annular portion, and a plurality of bridging portions. The first annular portion is connected to the voltage conducting layer, the second annular portion surrounds the first annular portion and connected to the voltage connecting terminal, and a first end and a second end of each bridging portion are connected to the first annular portion and the second annular portion respectively. The resistance value between two ends of each bridging portion is negatively correlated to the resistance value between the second end of the bridging portion and the voltage connecting terminal.
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5.发明申请公开(公告)号：US20190237013A1
公开(公告)日：2019-08-01
申请号：US16113085
申请日：2018-08-27
发明人： Xiaowei Wang , Guoqing Zhang , Hongxia Yang , Weifeng Wang
IPC分类号： G09G3/3233 , G09G3/3258
CPC分类号： G09G3/3233 , G09G3/3258 , G09G2330/08 , G09G2330/10
摘要： A detecting apparatus and method, repairing apparatus and method, and repairing system of AMOLED display device are provided. The detecting apparatus includes: an illuminating device for sequentially illuminating a plurality of detection regions of a screen of the AMOLED display device, the screen being divided into the plurality of detection regions, each of the detection regions including at least one light-emitting unit; a current detecting device for acquiring a detection current which is a sum of driving currents of the light-emitting unit in the detection region being illuminated; and a judging device for judging whether the detection region corresponding to the detection current is a defective region according to the detection current. The apparatus can detect luminance uniformity of the AMOLED display device. The detection efficiency is high, the detection standard is unified and the detection accuracy is high.
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公开(公告)号：US11099226B2
公开(公告)日：2021-08-24
申请号：US16157302
申请日：2018-10-11
发明人： Hongwei Gao , Guoqing Zhang , Hongxia Yang , Pucha Zhao , Xiaopeng Bai , Ke Zhao , Zhihui Jia , Yan Zong , Xiaowei Wang , Yaorong Liu
IPC分类号： G01R31/26
摘要： A test circuitry and a method for testing the same and a test system are provided. The test circuitry includes: a test signal input end, configured to input an initial test signal; a signal output end, configured to output a target test signal; and a signal shaping circuitry coupled to the test signal input end and the signal output end, configured to remove a noise signal from the initial test signal to obtain the target test signal.
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公开(公告)号：US11018167B2
公开(公告)日：2021-05-25
申请号：US16053460
申请日：2018-08-02
发明人： Ke Zhao , Guoqing Zhang , Hongwei Gao , Xiaowei Wang , Zhihui Jia , Yan Zong , Longfei Yang , Hongxia Yang , Meili Guo , Weifeng Wang , Pucha Zhao , Zhixin Guo
IPC分类号： G09G3/3233 , H01L27/32 , H01L51/56 , H01L21/66 , H01L27/12
摘要： The present disclosure relates to a method and system for performing aging process on the transistor in the display panel. A method for performing aging process on a transistor in a display panel, comprising: obtaining an initial characteristic curve of the transistor; determining an initial cutoff voltage range of the transistor according to the obtained initial characteristic curve; determining a gate-source voltage and a drain-source voltage required by the transistor according to the initial cutoff voltage range, so as to increase an cutoff voltage range of the transistor; and performing aging process on the transistor according to the determined required gate-source voltage and drain-source voltage.
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公开(公告)号：US10510278B2
公开(公告)日：2019-12-17
申请号：US16213210
申请日：2018-12-07
发明人： Weifeng Wang , Guoqing Zhang , Hongxia Yang , Yu Fu , Xingliang Wang , Zhixin Guo , Yanbin Dang , Xiaowei Wang , Jie Wu , Feiwen Tian , Pucha Zhao , Chenwei Wang , Xuepeng Ji
摘要： The present disclosure provides a signal loading method and a signal generator. The signal loading method includes: loading a first pair of voltage signals to at least one pair of separate signal channels for a time period, respectively, wherein the first pair of voltage signals have a first voltage difference therebetween; and determining whether a short circuit occurs in the at least one pair of signal channels within the time period, and if it is determined that no short circuit occurs in the at least one pair of signal channels within the time period, loading a second pair of voltage signals having a second voltage difference therebetween to the at least one pair of signal channels at the end of the time period. The second voltage difference is greater than the first voltage difference.
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公开(公告)号：US20190237019A1
公开(公告)日：2019-08-01
申请号：US16138603
申请日：2018-09-21
发明人： Hongwei Gao , Xiaowei Wang , Yaorong Liu , Zhihui Jia , Yan Zong , Ke Zhao , Hongxia Yang , Guoqing Zhang , Pucha Zhao , Xiaopeng Bai
IPC分类号： G09G3/3258 , G09G3/3291
CPC分类号： G09G3/3258 , G09G3/3291 , G09G2300/0426 , G09G2300/043 , G09G2330/12
摘要： A set of measurement voltages having different voltage values are subsequently inputted to a measurement voltage input terminal of the pixel driving circuit, a light emitting state of a light emitting device under each measurement voltage is detected, and it is determined whether a storage capacitor in the pixel driving circuit is normal based on the light emitting state of the light emitting device.
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公开(公告)号：US20190236992A1
公开(公告)日：2019-08-01
申请号：US16190406
申请日：2018-11-14
发明人： Xiaowei Wang , Guoqing Zhang , Longfei Yang , Lei Wang , Ke Zhao , Weifeng Wang , Hongxia Yang , Meili Guo , Feiwen Tian
IPC分类号： G09G3/00 , G09G3/3225
摘要： A defect detection circuit and a defect detection method for a light-emitting element, a display driving device, a display device, and a defect detection method for the display device are provided. The defect detection circuit includes a power source signal adjustment sub-circuit, a data signal adjustment sub-circuit, a first initial signal adjustment sub-circuit, a second initial signal adjustment sub-circuit and a storage capacitor connected to a control end of a driving transistor. The storage capacitor is configured to control the driving transistor to be turned off under the effect of a power source signal, a data signal and an initial signal, to enable the second initial signal adjustment sub-circuit to apply the initial signal to a light-emitting sub-circuit, thereby to enable the light-emitting sub-circuit to emit light. The display driving device includes the defect detection circuit.
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