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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：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：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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