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公开(公告)号：US12073762B2
公开(公告)日：2024-08-27
申请号：US18206715
申请日：2023-06-07
发明人： Lijun Yuan , Can Zhang , Ning Cong , Wei Li , Can Wang , Jinfei Niu , Jingjing Zhang , Minghua Xuan
IPC分类号： G09G3/20
CPC分类号： G09G3/2092 , G09G2300/0426 , G09G2310/0278 , G09G2310/061
摘要： The pixel driving circuit includes a current control sub-circuit configured to output a gray scale current signal to an element to be driven, and a gating sub-circuit. The gating sub-circuit is coupled to a scan signal terminal, a reset signal terminal, a gating data signal terminal and a pulse voltage signal terminal; the gating sub-circuit is configured to drive the element to be driven to continuously emit light under the control of a scan signal from the scan signal terminal and a gating data signal from the gating data signal terminal, and to drive the element to be driven to intermittently emit light under the control of a reset signal from the reset signal terminal, the gating data signal from the gating data signal terminal, and a pulse voltage signal from the pulse voltage signal terminal.
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公开(公告)号：US11955061B2
公开(公告)日：2024-04-09
申请号：US17787479
申请日：2021-03-03
发明人： Ning Cong , Xiaochuan Chen , Minghua Xuan , Can Zhang , Ming Yang , Lijun Yuan , Angran Zhang
IPC分类号： G09G3/3208 , G09G3/32 , G09G3/3233 , G09G3/3258 , H03K5/24
CPC分类号： G09G3/32 , G09G2300/0842 , G09G2310/061 , G09G2310/08 , G09G2320/0233 , G09G2320/0247
摘要： Provided is a pixel driving circuit configured to provide a signal to a to-be-driven element. The pixel driving circuit includes: a current control sub-circuit, configured to transmit a current signal; a time length control sub-circuit, configured to transmit a time signal; and an output sub-circuit, electrically connected with the time length control sub-circuit and the current control sub-circuit, respectively; where the time length control sub-circuit is further configured to control the output sub-circuit to be turned on or off based on the time signal; the output sub-circuit is configured to, when turned on, control a current applied to the to-be-driven element based on the current signal, where duration of two adjacent turn-ons of the output sub-circuit is same and duration of two adjacent turn-offs of the output sub-circuit is same.
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公开(公告)号：US11670220B2
公开(公告)日：2023-06-06
申请号：US17418808
申请日：2020-12-28
发明人： Ning Cong , Minghua Xuan , Can Zhang , Ming Yang , Can Wang , Lijun Yuan
IPC分类号： G09G3/32 , G09G3/3233
CPC分类号： G09G3/32 , G09G3/3233 , G09G2300/0426 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2310/08 , G09G2320/0233 , G09G2330/021
摘要： A pixel circuit includes a compensating circuit which can adjust an electric potential of a second control node (a gate of a transistor controlling conduction or non-conduction between a first connection node and a second connection node) based on an electric potential of a first control node, and can adjust an electric potential of the second control node based on an electric potential of the second connection node. A method for driving a pixel circuit, a display substrate, and a display device is also provided.
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公开(公告)号：US11663955B2
公开(公告)日：2023-05-30
申请号：US17433244
申请日：2021-02-07
发明人： Ning Cong , Minghua Xuan , Can Zhang , Ming Yang , Can Wang , Angran Zhang , Hao Chen , Xiaochuan Chen
IPC分类号： G09G3/32
CPC分类号： G09G3/32 , G09G2300/0426 , G09G2310/0278 , G09G2310/08
摘要： A pixel circuit, a drive method, a display substrate, and a display device are provided. The pixel circuit includes a light emitting device, a current supply sub-circuit, and a time control sub-circuit. The current supply sub-circuit is connected to a scanning signal terminal, a data signal terminal, a light emitting control terminal, a first power voltage terminal, the time control sub-circuit, and the light emitting device, and is configured to receive a data voltage of the data signal terminal and provide a drive current for the light emitting device. The time control sub-circuit is connected to the scanning signal terminal, a time length signal terminal, a second power voltage terminal, a direct current control signal terminal, and a direct current voltage terminal, and is configured to receive a time length voltage of the time length signal terminal and a direct current voltage input by the direct current voltage terminal.
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公开(公告)号：US11450270B2
公开(公告)日：2022-09-20
申请号：US16484621
申请日：2019-01-25
发明人： Liang Chen , Lei Wang , Dongni Liu , Li Xiao , Minghua Xuan , Xiaochuan Chen , Shengji Yang , Pengcheng Lu , Detao Zhao , Ning Cong
IPC分类号： G09G3/3233 , G09G3/3275
摘要： A pixel circuit and a method of driving the same, and a display device. The pixel circuit includes a plurality of pixel compensation circuits, and each pixel compensation circuit can be connected to M light-emitting units located in the same column. Each light-emitting control signal terminal of the M light-emitting control signal terminals included in each light-emitting control signal terminal group may be connected to a pixel compensation circuit group (i.e., K rows of pixels compensation circuits).
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公开(公告)号：US11430372B2
公开(公告)日：2022-08-30
申请号：US16467135
申请日：2018-12-12
发明人： Minghua Xuan , Han Yue , Ning Cong , Xiaochuan Chen , Lei Wang
摘要： The present disclosure relates to a pixel circuit. The pixel circuit may include at least one light emitting circuit. One of the at least one light emitting circuit may include an input sub-circuit, a latch sub-circuit, and an output sub-circuit. The input sub-circuit may be configured to transmit a signal at a data voltage terminal to the latch sub-circuit. The latch sub-circuit may be configured to generate a control signal in accordance with the signal at the data voltage terminal and store the control signal. The output sub-circuit may be configured to transmit one of a signal at a first voltage terminal and a signal at a second voltage terminal to a light emitting unit under control of the control signal.
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公开(公告)号：US20210366362A1
公开(公告)日：2021-11-25
申请号：US16484087
申请日：2018-11-30
发明人： Minghua Xuan , Han Yue , Xiaochuan Chen , Ning Cong
IPC分类号： G09G3/32
摘要： The present application discloses a pixel circuit for a light-emitting diode display panel. The pixel circuit includes a reset sub-circuit configured to initialize voltage levels of some nodes. Additionally, the pixel circuit includes a data-input and compensation sub-circuit configured to load a data signal and adjust the voltage levels of the nodes for determining a driving current flown through a driving sub-circuit. The pixel circuit further includes a voltage-control sub-circuit for controlling a switch sub-circuit to determine whether the driving current is flowing or not. Moreover, the pixel circuit includes an emission-control sub-circuit configured to control a partial time span in one scan for passing the driving current to the light-emitting diode to drive light emission. The one scan is one of multiple different scans in one cycle time of displaying one frame of image.
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公开(公告)号：US10930221B2
公开(公告)日：2021-02-23
申请号：US16424870
申请日：2019-05-29
发明人： Liang Chen , Lei Wang , Xiaochuan Chen , Minghua Xuan , Li Xiao , Dongni Liu , Shengji Yang , Pengcheng Lu , Ning Cong , Detao Zhao
IPC分类号： G09G3/3291 , H01L51/52
摘要： The present disclosure provides a light emitting unit, a driving method thereof, and a display device, belongs to the field of organic light emitting transistor (OLET) display technology, and can at least partially solve the problem of high power consumption of an existing OLET display technique. The light emitting unit includes an OLET and a driving circuit. The driving circuit is coupled to a control electrode and a first electrode of the OLET, and is configured to provide a data voltage to the control electrode of the OLET and provide a compensation voltage correlated with the data voltage to the first electrode of the OLET. A second electrode of the OLET is coupled to a first constant voltage terminal.
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9.发明授权公开(公告)号：US11893934B2
公开(公告)日：2024-02-06
申请号：US17256504
申请日：2019-09-05
发明人： Han Yue , Minghua Xuan , Can Zhang , Can Wang , Ming Yang , Ning Cong , Angran Zhang , Jiao Zhao , Xiaochuan Chen
IPC分类号： G09G3/3233
CPC分类号： G09G3/3233 , G09G2300/0426 , G09G2300/0819 , G09G2300/0842 , G09G2310/08 , G09G2320/029 , G09G2320/045 , G09G2330/08 , G09G2330/10 , G09G2330/12
摘要： A pixel driving circuit includes: a driving sub-circuit configured to supply a driving signal to an element to be driven; a detection sub-circuit electrically connected to a detection control signal terminal and a detection node and configured to detect a voltage value of the detection node in response to a detection control signal received at the detection control signal terminal. The detection node is equivalent to a point on a connection line between the driving sub-circuit and the element to be driven.
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公开(公告)号：US11749194B2
公开(公告)日：2023-09-05
申请号：US17787681
申请日：2021-09-01
发明人： Can Zhang , Ning Cong , Minghua Xuan , Xiaochuan Chen
IPC分类号： G09G3/3233 , G09G3/20
CPC分类号： G09G3/3233 , G09G3/2007 , G09G2300/0426 , G09G2300/0452 , G09G2300/0465 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2310/08 , G09G2330/02
摘要： A display substrate, a driving method therefor, and a display device are provided. The display substrate includes: a base substrate, provided with multiple pixel islands discretely provided, the pixel islands including multiple subpixels distributed in an array; a plurality of pixel circuits, arranged in the subpixels respectively, each of the pixel circuits including a driving transistor and a light-emitting component, a first electrode of the driving transistor being electrically connected to a first power supply end, a second electrode of the driving transistor being electrically connected to an anode of the light-emitting component, and a cathode of the light-emitting component being electrically connected to a second power supply end; and multiple light emission control circuits, each arranged at a gap between adjacent pixel islands, the light emission control circuit being electrically connected between the first power supply end and the first electrode of the driving transistor.
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