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公开(公告)号：US11249332B2
公开(公告)日：2022-02-15
申请号：US16071657
申请日：2017-12-15
发明人： Ruifang Du , Zijun Cao , Yuanyuan Liu , Xiaoye Ma , Rui Ma
IPC分类号： G02F1/133 , G02F1/1345 , G02F1/1362
摘要： A liquid crystal display device and a drive method thereof are disclosed. The liquid crystal display device includes a display panel and a controller. The display panel includes a display region, a plurality of pixels arranged in a matrix are provided in the display region, each of the plurality of pixels includes a red sub-pixel, a blue sub-pixel and a green sub-pixel, and the display region includes a middle portion and a peripheral portion outside the middle portion, and at least one first pixel is provided in the peripheral portion, the controller is configured to relatively increase a luminous intensity of a blue sub-pixel in the first pixel.
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公开(公告)号：US20210142712A1
公开(公告)日：2021-05-13
申请号：US16075119
申请日：2017-11-15
发明人： Fei Wang , Xiaofang Gu , Tingting Zhao , Xiaoye Ma , Rui Ma
摘要： A shift register unit includes: an input circuit, a reset circuit, and an output circuit; a first pull-down control circuit, configured to transmit the first power signal to the first and second pull-down control nodes, and the pull-down node according to the pull-up node, a second pull-down control circuit, configured to transmit a second power signal to the first pull-down control node according to the second power signal, transmit the second power signal to the second pull-down control node according to the first pull-down control node, and transmit the second power signal to the pull-down node according to the second pull-down control node, and a pull-down circuit, configured to transmit the first power signal to the pull-up node and the signal output end according to the pull-down node. The present disclosure may ensure the normal output of the signal and improve the ability of reducing noise.
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公开(公告)号：US10991332B2
公开(公告)日：2021-04-27
申请号：US16614486
申请日：2018-01-16
发明人： Xibin Shao , Zhangtao Wang , Rui Ma , Tong Yang
IPC分类号： G09G3/36 , G09G3/3266
摘要： The present application discloses a shift-register circuit including a shift-register unit and a shutdown-discharge sub-circuit. The shift-register unit is coupled to a clock port, a first reference voltage port, a second reference voltage port, and an output port and configured to set a voltage level at a pull-up node to control a clock signal from the clock port being outputted to the output port to drive a display panel during a display period. The shutdown discharge sub-circuit is configured to at least simultaneously receive a shutdown signal at a first voltage level from a shutdown-discharge control port and a second signal at the first voltage level from the second reference voltage port to start a shutdown period to discharge at least one of the pull-up node and the output port. The shutdown signal has a signal length longer than a signal length of the second signal.
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公开(公告)号：US10950196B2
公开(公告)日：2021-03-16
申请号：US16077369
申请日：2018-02-12
发明人： Ruifang Du , Zijun Cao , Xiaoye Ma , Rui Ma
摘要： A shift register, a method for driving the same, a gate driving circuit, and a display device are described. The shift register includes a pull-up control circuit which outputs the voltage of a signal input terminal, a pull-up circuit which outputs the voltage of a first clock signal input terminal, a pull-down control circuit which outputs the voltage of a second clock signal input terminal, or pulls down the voltage of the pull-down node, a pull-down circuit which pulls down voltages of the pull-up node and the signal output terminal to the first voltage terminal, respectively, a reset circuit which pulls down voltages of the pull-up node and the signal output terminal to the first voltage terminal, respectively, and a noise reduction control circuit which outputs the voltage of a noise reduction control signal terminal to the pull-down node in the blanking time of an image frame.
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公开(公告)号：US20200242998A1
公开(公告)日：2020-07-30
申请号：US15769907
申请日：2017-05-08
发明人： Fei Wang , Xiping Wang , Rui Ma , Xiaoye Ma , Zixuan Wang
摘要： The present application discloses a gate driving circuit having multiple shift register units cascaded one after another in multiple stages. The multiple shift register units are grouped into a plurality of groups of shift register units, each of the plurality of groups of shift register units having a plurality of shift register units. Each of the plurality of groups of shift register units includes a single pull-down control sub-circuit.
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公开(公告)号：US20210174758A1
公开(公告)日：2021-06-10
申请号：US15777591
申请日：2017-06-07
发明人： Yuanyuan Liu , Jianjun Wang , Hongjun Wang , Min Wang , Rui Ma
IPC分类号： G09G3/36
摘要： The present application discloses a method for preventing false output of a GOA circuit in a display panel. The method includes providing N clock signals respectively to N GOA units in each of M groups of GOA units cascaded in series. The N clock signals are outputted time-sequentially from a 1st clock signal to a N-th clock signal. The method additionally includes counting a first total number of pulses of the 1st clock signal and a second total number of pulses of the N-th clock signal, comparing each of them to M, and generating a reset signal based on a determination that at least one of the first total number of pulses and the second total number of pulses is smaller than M. The method furthermore includes releasing residual charges of the GOA circuit without outputting any gate-driving signal for a duration of time.
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公开(公告)号：US10978017B2
公开(公告)日：2021-04-13
申请号：US16335814
申请日：2018-07-19
发明人： Ruifang Du , Jiyan Ma , Xiaoye Ma , Rui Ma
摘要： There is provided in the present disclosure a shift register unit, including: an input sub-circuit, whose first terminal is coupled to an input signal terminal, and second terminal is coupled to a pull-up node; an output sub-circuit, whose first terminal is coupled to the pull-up node, second terminal is coupled to a clock signal terminal, and third terminal is coupled to an output terminal, and configured to output a clock signal of the clock signal terminal to the output terminal under the control of a level signal of the pull-up node; a first electro-static discharge sub-circuit, whose first terminal is coupled to the pull-up node, second terminal is coupled to an electro-static discharge control terminal, and third terminal is coupled to a ground, and configured to discharge static electricity accumulated at the pull-up node under the control of a level signal of the electro-static discharge control terminal.
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公开(公告)号：US10937357B2
公开(公告)日：2021-03-02
申请号：US15769907
申请日：2017-05-08
发明人： Fei Wang , Xiping Wang , Rui Ma , Xiaoye Ma , Zixuan Wang
摘要： The present application discloses a gate driving circuit having multiple shift register units cascaded one after another in multiple stages. The multiple shift register units are grouped into a plurality of groups of shift register units, each of the plurality of groups of shift register units having a plurality of shift register units. Each of the plurality of groups of shift register units includes a single pull-down control sub-circuit.
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公开(公告)号：US10529297B2
公开(公告)日：2020-01-07
申请号：US15765535
申请日：2017-09-01
发明人： Yuanyuan Liu , Min Wang , Wenwu Lu , Ruifang Du , Rui Ma
IPC分类号： G09G3/36
摘要： The present disclosure provides a display panel, a method for compensating a common voltage thereof, and a display device, belongs to the field of display technology and can solve the problem that the existing display panel cannot effectively compensate the common voltage in the middle region thereof. The display panel includes a plurality of compensation regions, each of the compensation regions is provided with a plurality of common electrodes. The display panel includes a compensation circuit corresponding to each compensation region. The compensation circuit may compensate an actual common voltage of the common electrode in a corresponding compensation region, according to an average value of a difference between an actual common voltage and a preset common voltage of each common electrode in the corresponding compensation region.
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公开(公告)号：US20190019445A1
公开(公告)日：2019-01-17
申请号：US15748122
申请日：2017-06-27
发明人： Haifeng Xu , Mookeun Shin , Rui Ma , Rongcheng Liu , Jianming Huang
摘要： The present disclosure relates to a field of optical technology, and discloses a backlight assembly and a display device. The backlight assembly includes a frame, an optical film, a light guide plate and a fixing structure; the optical film is located on a light-emitting side of the light guide plate, and the frame is located on a side of the optical film; the fixing structure comprises a first fixing sub-structure on the optical film and a second fixing sub-structure on the frame, and the first fixing sub-structure is engaged with the second fixing sub-structure.
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