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公开(公告)号：US10553159B2
公开(公告)日：2020-02-04
申请号：US15535242
申请日：2016-09-30
发明人： Guangxing Wang , Bin Zhang , Dianzheng Dong , Kan Zhang , Qiang Zhang
IPC分类号： G09G3/3258 , G09G3/3233
摘要： Disclosed are a pixel circuit, a display panel and a display device. The pixel circuit includes driving circuits which are in one-to-one correspondence to data lines, each driving circuit being disposed in a peripheral area of a display panel; compensating circuits which are in one-to-one correspondence to gate lines, each compensating circuit being disposed in a peripheral area of the display panel; and light emitting devices. Each compensating circuit outputs a first reference signal or a second reference signal to the corresponding driving circuit. Each driving circuit drives a corresponding light emitting device to emit light through a signal from the corresponding compensating circuit and a data signal from the corresponding data line. The pixel circuit of the present disclosure can improve the aperture ratio of a pixel unit.
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公开(公告)号：US10049634B2
公开(公告)日：2018-08-14
申请号：US15521666
申请日：2016-10-11
发明人： Kan Zhang , Bin Zhang , Pengming Chen , Guangxing Wang , Qiang Zhang , Dianzheng Dong
IPC分类号： G09G3/36
摘要： The disclosure provides a pixel circuit and a driving method thereof, a driving circuit, and a display device, which pertains to the field of pixel driving technology. The pixel circuit includes a capacitor, a capacitor charging transistor, a first and second capacitor discharging transistor. The capacitor is charged to a first voltage greater than the pixel voltage when the capacitor charging transistor is turned on. The capacitor is connected in series with the first and second capacitor discharging transistor to form a discharge circuit, and the capacitor is discharged when the first and second capacitor discharging transistor are turned on so that the voltage across the capacitor drops from the first voltage to the pixel voltage. There is no need to arrange a Gamma resistor for the driving circuit for the pixel circuit array provided by the disclosure, which makes the structure simple and the power consumption in driving low.
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公开(公告)号：US20170371440A1
公开(公告)日：2017-12-28
申请号：US15533171
申请日：2016-02-04
发明人： Jiajia Song , Dianzheng Dong , Junwei Wang
IPC分类号： G06F3/042 , G02F1/1343 , G02F1/1333 , G06F3/041 , G06F3/044
CPC分类号： G06F3/042 , G02F1/13338 , G02F1/1343 , G06F3/0412 , G06F3/044 , G06F2203/04112
摘要： An optical touch substrate, an in-cell touch panel and a display device are disclosed. The optical touch substrate includes a base substrate, a light shielding matrix and a plurality of pixel regions defined by the light shielding matrix. The light shielding matrix includes a plurality of first optical touch electrodes and a plurality of second optical touch electrodes arranged to cross each other. The first optical touch electrodes are insulated from the second optical touch electrodes, and at least one optical touch electrode of the plurality of first optical touch electrodes and the plurality of second optical touch electrodes includes a photosensitive layer and a conductive layer provided in a stacked manner. A sensing signal on each optical touch electrode changes as an intensity of light irradiated to a corresponding photosensitive layer changes.
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公开(公告)号：US11081040B2
公开(公告)日：2021-08-03
申请号：US16308437
申请日：2018-04-19
发明人： Pengming Chen , Bin Zhang , Dianzheng Dong , Qiang Zhang , Guangxing Wang , Kan Zhang , Wenpeng Xu , Ziqiang Guo , Yongquan Lu
摘要： A pixel circuit includes a liquid crystal capacitor, a selection unit, a gray scale writing unit, and a reset unit. The selection unit is configured to determine whether to charge the liquid crystal capacitor according to a row control signal and a column control signal. The gray scale writing unit is configured to apply a gray scale voltage signal to the liquid crystal capacitor, when the selection unit determines to charge the liquid crystal capacitor, and an application duration of the gray scale voltage signal controls a gray scale level displayed by the liquid crystal capacitor. The reset unit is configured to disconnect the gray scale writing unit and the liquid crystal capacitor to stop charging the liquid crystal capacitor upon receiving the reset signal, and reset the voltage of the liquid crystal capacitor to an initial state.
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公开(公告)号：US20210043156A1
公开(公告)日：2021-02-11
申请号：US16966871
申请日：2019-12-04
发明人： Dianzheng Dong , Weitao CHEN , Xiaopeng CUI , Wenpeng XU , Wan LIN , Haixu Wang
IPC分类号： G09G3/36
摘要： The present disclosure provides a common voltage compensation circuit including a feedback signal input terminal and a compensation sub-circuit. The compensation sub-circuit is configured to generate a compensation voltage for compensating a common voltage according to a feedback signal from the feedback signal input terminal and a reference common voltage. The common voltage compensation circuit also includes a first filter sub-circuit, a first terminal of the first filter sub-circuit is electrically coupled to the feedback signal input terminal, and a second terminal of the first filter sub-circuit is electrically coupled to a first clock signal line. The feedback signal line arranged is adjacent to a second clock signal line, and a first clock signal in the first clock signal line and a second clock signal in the second clock signal line are inverted relative to each other. The present disclosure also provides a display driver and a display device.
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公开(公告)号：US10678361B2
公开(公告)日：2020-06-09
申请号：US16333808
申请日：2018-03-07
发明人： Kan Zhang , Bin Zhang , Dianzheng Dong , Qiang Zhang , Pengming Chen , Yu Xie , Guangxing Wang
摘要： The present disclosure provides a touch circuit, a touch array circuit and a method for driving the same, and a display panel. The touch circuit includes: a first resistor, a second resistor, a control sub-circuit, a third resistor, a strain resistor and a Hall element. The first resistor is connected to a first scanning signal terminal, the control sub-circuit, the second resistor and the Hall element. The second resistor is further connected to a first level terminal and the third resistor. The control sub-circuit is further connected to the strain resistor and a second scanning signal terminal. The strain resistor is further connected to the third resistor and the Hall element. The Hall element is further connected to an inductive voltage output terminal.
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公开(公告)号：US10545606B2
公开(公告)日：2020-01-28
申请号：US15736397
申请日：2017-05-05
发明人： Kan Zhang , Bin Zhang , Qiang Zhang , Guangxing Wang , Dianzheng Dong , Pengming Chen
IPC分类号： G06F3/041
摘要： The present disclosure discloses a scanning circuit for touch screen, touch screen and touch control method. The canning circuit for touch screen includes: a multiplexing circuit and a touch driving circuit coupled to the same, the touch driving circuit includes m signal input terminals, each of which is coupled to n receiving-electrode channels, and in an ith time slot of a current scanning period, the multiplexing circuit controls the touch driving circuit to receive, through the m signal input terminals, output signals from m receiving-electrode channels, and determines a touch position according to an emitting-electrode channel corresponding to the current scanning period and the output signals of the m receiving-electrode channels, the current scanning period includes n time slots, i=1, 2, . . . n, and the output signals of the m receiving-electrode channels received by the touch driving circuit in each time slot are different.
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公开(公告)号：US20180240426A1
公开(公告)日：2018-08-23
申请号：US15552284
申请日：2017-02-20
发明人： Pengming Chen , Weitao Chen , Bin Zhang , Dianzheng Dong , Kan Zhang
IPC分类号： G09G3/36 , G02F1/1362 , H01L27/12
摘要： Embodiments of the present disclosure relate to a pixel circuit, comprising: a liquid crystal capacitor; a selection unit having a first input terminal for receiving a row control signal and a second input terminal for receiving a column control signal, and configured to generate a selection signal indicating whether to select the liquid crystal capacitor according to the row control signal and the column control signal and output the selection signal via an output terminal of the selection unit; and a grayscale voltage writing unit having a first input terminal connected to the output terminal of the selection unit, a second input terminal for receiving a grayscale voltage, a first output terminal connected to a first terminal of the liquid crystal capacitor, and a second output terminal connected to a first voltage, and configured to write a corresponding grayscale voltage of multiple grayscale voltages into the liquid crystal capacitor when the selection signal indicates that the liquid crystal capacitor is selected.
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公开(公告)号：US10026376B2
公开(公告)日：2018-07-17
申请号：US15134780
申请日：2016-04-21
发明人： Chiachia Sung , Lei Liu , Dianzheng Dong , Chengte Lai , Guangxing Wang
摘要： The present disclosure provides a power management integrated circuit (PMIC) and a display device. The PMIC includes an FBN and a DC voltage output unit configured to output different DC voltages to the FBN in a time-division manner.
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公开(公告)号：US11875742B2
公开(公告)日：2024-01-16
申请号：US17764163
申请日：2021-05-19
发明人： Wenpeng Xu , Dianzheng Dong , Qiang Zhang , Guangxing Wang , Haiqin Huang , Wan Lin , Haixu Wang , Leiyang Wang
IPC分类号： G09G3/3233 , G09G3/3291
CPC分类号： G09G3/3233 , G09G3/3291 , G09G2310/0291 , G09G2320/0233
摘要： A display drive circuit, a drive method thereof, and a display device are disclosed. The display drive circuit includes: a pixel circuit and a compensation circuit, the pixel circuit includes: a drive transistor, a light emitting device, a storage capacitor, and a gating sub-circuit configured to control connection and disconnection between the control electrode of the drive transistor and a control terminal of the compensation circuit and connection and disconnection between a second electrode of the light emitting device and a sensing terminal of the compensation circuit in response to a signal of a scanning line; the compensation circuit includes: a voltage generating sub-circuit configured to generate a sensing voltage according to the drive current and a target data voltage, and a voltage adjusting sub-circuit configured to adjust a voltage of the control terminal according to the sensing voltage and a voltage of a second power supply terminal.
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