公开(公告)号：US11763746B1

公开(公告)日：2023-09-19

申请号：US18056911

申请日：2022-11-18

申请人： WUHAN TIANMA MICRO-ELECTRONICS CO., LTD. ,  Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch

发明人： Mengmeng Zhang ,  Yue Li

IPC分类号： G09G3/3233

CPC分类号： G09G3/3233 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2330/026 ,  G09G2330/027 ,  G09G2330/04

摘要： A display panel, a method for driving the same, and a display apparatus are provided. The display panel includes an emission driving circuit that includes cascaded emission driving units. The emission driving unit includes a control module including a control transistor. The control transistor provides a signal of an adjustment signal terminal to a first node in response to a signal of a first control signal terminal, so as to turn off a first output module. A voltage difference between any two of a control electrode, a first electrode or a second electrode of the control transistor is smaller than or equal to a preset threshold, and/or a duration in which a voltage difference between any two of the control electrode, the first electrode or the second electrode of the control transistor is greater than the preset threshold is smaller than or equal to a preset duration.

公开(公告)号：US11462175B2

公开(公告)日：2022-10-04

申请号：US16710929

申请日：2019-12-11

申请人： WUHAN TIANMA MICRO-ELECTRONICS CO., LTD. ,  WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH

发明人： Yue Li ,  Mengmeng Zhang

IPC分类号： G09G3/3275 ,  G09G3/3266

摘要： An array substrate includes that: a data-writing phase of each row of the pixel-driving circuits is divided into a first phase and a second phase, in the first phase, a data signal of each data line is written into a parasitic capacitor on a data wiring electrically connected to a respective one of the row of the pixel-driving circuits, and in the second phase, the corresponding scan line transmits a scan signal to the row of the pixel-driving circuits, and the parasitic capacitor on each of the data wirings electrically connected to the row of the pixel-driving circuits writes the data signal into a drive control terminal of a respective one of the pixel-driving circuits; and the first phase of each row of the pixel-driving circuits at least partially overlaps with the second phase of a previous row of the pixel-driving circuits.

公开(公告)号：US20230298526A1

公开(公告)日：2023-09-21

申请号：US18323261

申请日：2023-05-24

申请人： WUHAN TIANMA MICRO-ELECTRONICS CO., LTD. ,  Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch

发明人： Mengmeng Zhang ,  Gaojun Huang ,  Xingyao Zhou ,  Yue Li

IPC分类号： G09G3/3233

CPC分类号： G09G3/3233 ,  G09G2310/0262 ,  G09G2310/0278 ,  G09G2310/061

摘要： Provided are display panel, method for driving same, and display device. Display panel includes pixel circuit and cascaded first shift circuits. Pixel circuit includes drive transistor and adjusting module electrically connected to first scan line, adjusting line and first electrode of drive transistor. First shift circuit is electrically connected to first scan line and includes first control module and first output module. First control module is electrically connected to first type-A clock line, first shift control line and first control node, and configured to write first shift control signal into first control node in response to first type-A clock signal from first type-A clock line. First output module is electrically connected to first control node, first type-B clock line and first scan line, and configured to write first type-B clock signal into first scan line in response to signal of first control node.

公开(公告)号：US11620950B2

公开(公告)日：2023-04-04

申请号：US17405643

申请日：2021-08-18

申请人： Wuhan Tianma Micro-Electronics Co., Ltd. ,  Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch

发明人： Shuai Yang ,  Xingyao Zhou ,  Yue Li ,  Mengmeng Zhang

IPC分类号： G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3291

摘要： A pixel driving circuit, a driving method, a display panel and a display device are provided. The pixel driving circuit include a driving module, configured to drive a light-emitting element to emit light, wherein a control terminal of the driving module is electrically connected to a first node, and a first terminal is electrically connected to a second node; a data writing module, configured to write data signals, wherein a control terminal of the data writing module is electrically connected with a first scan signal line, and a first terminal is electrically connected with a data signal terminal; and a coupling module, configured to couple the data signals to the first terminal of the driving module, wherein a first terminal of the coupling module is electrically connected to a second terminal of the data writing module, and a second terminal is electrically connected to the second node.

公开(公告)号：US11925076B2

公开(公告)日：2024-03-05

申请号：US17138643

申请日：2020-12-30

申请人： WUHAN TIANMA MICRO-ELECTRONICS CO., LTD. ,  WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH

发明人： Zhe Zhao ,  Shuai Yang ,  Yue Li ,  Xingyao Zhou ,  Mengmeng Zhang

IPC分类号： H10K59/131 ,  H10K77/10

CPC分类号： H10K59/131 ,  H10K77/10

摘要： Provided are a display panel and a display device. The display panel includes a base substrate as well as, at a side of the base substrate, a plurality of sub-pixels arranged in an array, a power bus, a plurality of first power lines extending along a column direction and a plurality of second power lines extending along a row direction, where each of the plurality of first power lines is electrically connected to the plurality of the sub-pixels arranged along the column direction, and the plurality of first power lines and the plurality of second power lines are electrically connected in overlapping regions of vertical projection on the base substrate. The display panel further includes a plurality of connection units.

公开(公告)号：US11756492B2

公开(公告)日：2023-09-12

申请号：US17339240

申请日：2021-06-04

申请人： Wuhan Tianma Micro-Electronics Co., Ltd. ,  Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch ,  Tianma Micro-Electronics Co., Ltd.

发明人： Yue Li ,  Dong Qian ,  Gang Liu

IPC分类号： G11C19/00 ,  G09G3/34 ,  G11C19/28 ,  G11C19/18 ,  G09G3/20 ,  G09G3/36

CPC分类号： G09G3/3426 ,  G09G3/20 ,  G09G3/34 ,  G09G3/3677 ,  G11C19/184 ,  G11C19/28 ,  G11C19/287 ,  G09G2310/0286

摘要： A display panel, a stage circuit, and a driving method of the stage circuit are provided. The stage circuit includes cascaded shift register circuits. Each cascaded shift register circuit includes: a first control module, a second control module, and an output module. The first control module receives an input signal and a charging signal, and generates a voltage signal at a second node in response to a first clock signal and a voltage signal at a first node. With an exception of a first stage cascaded shift register circuit, a first transistor of a current stage cascaded shift register circuit has a first end connected to a signal output terminal of a previous stage cascaded shift register circuit, a second end connected to the second node, and a control end connected to the first node.

公开(公告)号：US11417259B2

公开(公告)日：2022-08-16

申请号：US17229876

申请日：2021-04-14

申请人： WUHAN TIANMA MICRO-ELECTRONICS CO., LTD ,  WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH

发明人： Shuai Yang ,  Xingyao Zhou ,  Yue Li ,  Mengmeng Zhang

IPC分类号： G09G3/20 ,  G09G3/3233

摘要： Disclosed are a driving method of a display device and a driving device is described. The driving method of a display panel includes that in response to determining that the display device enters a low power consumption state, controlling a light intensity detection component to detect in real time whether the display device is in a strong light environment; in a case where the display device is in the strong light environment, controlling a driver chip to adjust a picture refresh frequency to a first frequency; in a case where the display device is not in the strong light environment, determining a current gray scale of the display device according to a latest user setting instruction, determining an optimal refresh frequency according to the current gray scale and a corresponding relationship between a preset gray scale and the optimal refresh frequency.

公开(公告)号：US12033578B1

公开(公告)日：2024-07-09

申请号：US18195621

申请日：2023-05-10

申请人： Wuhan Tianma Micro-Electronics Co., Ltd. ,  Wuhan Tianma MicroElectronics Co., Ltd. Shanghai Branch

发明人： Yue Li ,  Peng Zhang ,  Mengmeng Zhang ,  Xueqi Tian ,  Shuai Yang ,  Yana Gao ,  Gaojun Huang

IPC分类号： G09G3/3233

CPC分类号： G09G3/3233 ,  G09G2300/0842 ,  G09G2310/061 ,  G09G2320/0247

摘要： A driving method of a display panel and a display panel are provided. Time for displaying one frame includes N times of first node potential adjustment stages, a data writing stage, and at least one first bias stress stage; the data writing stage is after the first node potential adjustment stage and before the first bias stress stage; the N times first node potential adjustment stage include N reset stages and N first adjustment voltage writing stages; and an i-th first voltage writing stage is after an i-th reset stage. In the reset stage, the first reset module is turned on to write a reset signal to the first node; in the first adjustment voltage writing phase, the first reset module is turned off, and the compensation module is turned on to write a first adjustment voltage into the first node to adjust the bias state of the driving transistor.

公开(公告)号：US11804183B2

公开(公告)日：2023-10-31

申请号：US17587766

申请日：2022-01-28

申请人： Wuhan Tianma Micro-Electronics Co., Ltd. ,  Wuhan Tianma MicroElectronics Co., Ltd. Shanghai Branch

发明人： Mengmeng Zhang ,  Yue Li ,  Yuantao Wu ,  Jing Huang

IPC分类号： G09G3/3266 ,  G11C19/28 ,  G09G3/36 ,  G09G3/20

CPC分类号： G09G3/3266 ,  G11C19/28 ,  G09G3/20 ,  G09G3/3677 ,  G09G2310/0267 ,  G09G2310/0283 ,  G09G2310/0286 ,  G11C19/287

摘要： A display panel, a driving method of a display panel, and a display device are provided. The display panel includes pixel circuits and a gate driving circuit including cascaded first shift register units. A trigger signal input terminal of the first stage first shift register unit is connected to a trigger signal terminal through a first switch element. A signal output terminal of the i-th stage first shift register unit is connected to a trigger signal input terminal of the (i+1)-th stage first shift register unit through a second switch element. A trigger signal input terminal of the N-th stage first shift register unit is connected to the trigger signal terminal through a third switch element. A signal output terminal of the j-th stage first shift register unit is connected to a trigger signal input terminal of the (j−1)-th stage first shift register unit through a fourth switch element.

公开(公告)号：US11741892B2

公开(公告)日：2023-08-29

申请号：US17454856

申请日：2021-11-15

申请人： Wuhan Tianma Micro-Electronics Co., Ltd. ,  Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch

发明人： Shuai Yang ,  Yue Li ,  Mengmeng Zhang ,  Gaojun Huang

IPC分类号： G09G3/3208

CPC分类号： G09G3/3208 ,  G09G2300/0842 ,  G09G2310/0297 ,  G09G2310/061 ,  G09G2320/0214

摘要： Pixel circuit, display panel and display device are provided. The pixel circuit includes a driving module, a data writing module, a first reset module, a threshold compensation module, light emitting control modules, a leakage suppression module, a storage capacitor, a first capacitor, and a light emitting module. A first terminal of the first reset module is electrically connected to a reference signal terminal. A first terminal of the threshold compensation module is electrically connected to a second terminal of the driving module. A control terminal of the driving module is electrically connected to a first node. A second terminal of the first reset module and a second terminal of the threshold compensation module are both electrically connected to the first node through the leakage suppression module. A connection node between the leakage suppression module and the second terminal of the first reset module is a second node.