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公开(公告)号：US12094400B2
公开(公告)日：2024-09-17
申请号：US18344886
申请日：2023-06-30
发明人： Qingjun Lai , Yihua Zhu
IPC分类号： G09G3/32 , G09G3/3266 , G09G3/20 , G09G3/325 , G11C19/28
CPC分类号： G09G3/32 , G09G3/3266 , G09G3/20 , G09G3/325 , G09G2300/0842 , G09G2300/0861 , G09G2310/0286 , G09G2310/061 , G09G2310/08 , G09G2330/021 , G09G2340/0435 , G11C19/28
摘要： A display panel includes a driving circuit including N stages of cascaded shift registers, and each shift register includes: a first control part and a second control part; the second control part is configured to at least receive the signal of the second node, the signal of the third node, and a frequency control signal to generate an output signal; one shift register of the cascaded shift registers connected to a display unit in the first region is configured to receive the first frequency control signal, and one shift register of the cascaded shift registers connected to a display unit in the second region is configured to receive the second frequency control signal; a data refresh frequency of the display unit in the first region is F1, and a data refresh frequency in the second region is F2, F1
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公开(公告)号：US11756467B2
公开(公告)日：2023-09-12
申请号：US17856568
申请日：2022-07-01
发明人： Qingjun Lai , Yihua Zhu
IPC分类号： G09G3/20
CPC分类号： G09G3/20 , G09G2300/043 , G09G2300/0426 , G09G2300/0819 , G09G2310/0286
摘要： A display panel and a display device are provided. The display panel includes a driving circuit. The driving circuit includes N-level shift registers cascaded with each other, where N is greater than or equal to two. the display panel further includes a first voltage signal line, providing a first voltage signal for the driving circuit; a second voltage signal line, providing a second voltage signal for the driving circuit; a third voltage signal line, providing a third voltage signal for the driving circuit; and a fourth voltage signal line, providing a fourth voltage signal for the driving circuit. At least one of the third voltage signal line and the fourth voltage signal line is disposed on a side of at least one of the first voltage signal line and the second voltage signal line facing toward a display region of the display panel.
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公开(公告)号：US11455957B2
公开(公告)日：2022-09-27
申请号：US17350195
申请日：2021-06-17
发明人： Qingjun Lai , Yihua Zhu , Shaorong Yu
IPC分类号： G09G5/00 , G09G3/3266 , G11C19/28
摘要： A shift register circuit and its driving method, a display panel, and a display device are provided. The shift register circuit includes an input module, a first inverter, a second inverter, and an output module. The input module is connected to a first input terminal, a second input terminal, a third input terminal, and a first electrical-level terminal, to respond to signals from the second and third input terminal and control a voltage of a first node. In the first inverter, an input terminal is connected to the first node, and an output terminal is connected to a second node. In the second inverter, an input terminal is connected to the second node, and an output terminal is connected to the first node. The output module provides a signal of the fourth input terminal to an output terminal of the output module, and also provides a voltage of a first power terminal to the output terminal of the output module.
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公开(公告)号：US11410590B2
公开(公告)日：2022-08-09
申请号：US17451235
申请日：2021-10-18
发明人： Qingjun Lai , Yihua Zhu
IPC分类号： G09G3/20
摘要： A display panel and a display device are provided. The display panel includes a driving circuit including N-level shift registers cascaded with each other, where N is greater than or equal to two. A shift register includes a first control unit configured to receive an input signal, and control a signal of a first node; a second control unit configured to receive a first voltage signal and a second voltage signal, and control a signal of a second node; a third control unit configured to receive the first voltage signal and the second voltage signal, and control a signal of a fourth node; and a fourth control unit configured to receive a third voltage signal and a fourth voltage signal, and generate an output signal. The first and third voltage signals are high-level signals, and the second and fourth voltage signals are low-level signals.
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公开(公告)号：US11302246B2
公开(公告)日：2022-04-12
申请号：US16914490
申请日：2020-06-29
发明人： Qitai Ji , Qingjun Lai , Xiao Li
摘要： Provided are a pixel driving circuit, a driving method, a display panel and a display device. The pixel driving circuit includes: a data writing device, a voltage stabilizing storage device, a driving device and a light-emitting component; where the data writing device is configured for transmitting a data signal voltage; the driving device is configured for generating a driving current according to the data signal voltage transmitted by the data writing device; the voltage stabilizing storage device is configured for storing the data signal voltage transmitted to the driving device; the light-emitting component is configured for emitting light in response to the driving current generated by the driving device; where the voltage stabilizing storage device includes at least two voltage stabilizing storage sub-devices connected in parallel, each voltage stabilizing storage sub-device includes a capacitor, at least one of the voltage stabilizing storage sub-devices includes a switch device.
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公开(公告)号：US09990093B2
公开(公告)日：2018-06-05
申请号：US14857713
申请日：2015-09-17
发明人： Qingjun Lai
CPC分类号： G06F3/044 , G06F3/0416 , G06F3/0418
摘要： A touch display substrate includes a substrate including a display region and a non-display region; a touch sensing circuit in the non-display region; a plurality of touch sensing electrodes in the display region, the plurality of touch sensing electrodes grouped into at least two touch sensing electrode groups in accordance with distances from the touch sensing electrodes to the touch sensing circuit; and a plurality of touch leads, where one end of each of the touch leads is electrically connected with one of the touch sensing electrodes, and the other end of the touch lead is electrically connected with the touch control circuit. The touch sensing circuit is configured to input touch driving signals of a different frequency to each of the touch sensing electrode groups, and the touch driving signals input to the touch sensing electrodes in the same touch sensing electrode group are of the same frequency.
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公开(公告)号：US12106696B2
公开(公告)日：2024-10-01
申请号：US18344897
申请日：2023-06-30
发明人： Qingjun Lai , Yihua Zhu , Yong Yuan
IPC分类号： G09G3/20 , G09G3/3266 , G09G3/36 , G11C19/28
CPC分类号： G09G3/2092 , G09G3/20 , G09G3/3266 , G09G3/3674 , G09G2310/0286 , G09G2310/08 , G11C19/28
摘要： Provided are a display panel and a display device. The display panel includes a driver circuit including N stages of cascaded shift registers, where N≥2. A shift register includes a first control part and a second control part. The second control part includes a first control unit and a second control unit. The first control unit comprises a first gating unit. One terminal of the first gating unit is connected to a preset node, another terminal of the first gating unit is connected to a fourth node, and a control terminal of the first gating unit is configured to receive a fifth voltage signal. The second control unit is configured to receive at least a third voltage signal and a signal of the fourth node or receive at least a fourth voltage signal and a signal of a fifth node and generate an output signal.
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公开(公告)号：US11663949B2
公开(公告)日：2023-05-30
申请号：US17856751
申请日：2022-07-01
发明人： Qingjun Lai , Yihua Zhu
IPC分类号： G09G3/20
CPC分类号： G09G3/20 , G09G2300/043 , G09G2300/0426 , G09G2300/0819 , G09G2310/0286
摘要： A display panel and a display device are provided. The display panel includes a driving circuit, and the driving circuit includes N-level shift registers cascaded with each other, where N is greater than or equal to two. A shift register of the N-level shift registers includes: a third control unit, configured to control a signal of a fourth node, the third control unit receives a first voltage signal and a second voltage signal, the first voltage signal is a high-level signal, and the second voltage signal is a low-level signal; and a fourth control unit, configured to generate an output signal, the fourth control unit receives a third voltage signal and a fourth voltage signal, and the third voltage signal is a high-level signal, and the fourth voltage signal is a low-level signal.
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公开(公告)号：US11600219B2
公开(公告)日：2023-03-07
申请号：US17467933
申请日：2021-09-07
发明人： Qingjun Lai , Yihua Zhu , Ping An
IPC分类号： G09G3/32
摘要： Provided are a display panel, a driving method thereof and a display device. The display panel includes: a pixel circuit and a light-emitting element, where the pixel circuit includes a light emitting control module, a drive module and a compensation module; the light emitting control module includes a first light emitting control module configured to selectively provide a first power supply signal for the drive module; the drive module is configured to provide a drive current for the light-emitting element and comprises a drive transistor; the compensation module is configured to compensate a threshold voltage of the drive transistor; and a working process of the pixel circuit includes a light emitting stage and a bias stage.
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公开(公告)号：US11450258B2
公开(公告)日：2022-09-20
申请号：US17528138
申请日：2021-11-16
发明人： Qingjun Lai , Yihua Zhu , Jinjin Yang , Ping An
摘要： Provided are a display panel and a display device. The display panel includes a driving circuit comprising N stages of cascaded shift registers. Each shift register includes a first control unit, a second control unit, a third control unit, and a fourth control unit. The first control unit is configured to receive an input signal and control a signal of a first node. The second control unit is configured to receive a first voltage signal and control a signal of a second node. The third control unit is configured to receive a signal of a fourth node and control an output signal, or receive a second voltage signal and control the output signal. The fourth control unit is configured to receive the first voltage signal and a third voltage signal and control the signal of the fourth node.
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