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71. 发明公开

EP3846156A1 SHIFT REGISTER UNIT, GATE DRIVE CIRCUIT, DISPLAY DEVICE, AND DRIVING METHOD 审中-实审
公开(公告)号：EP3846156A1
公开(公告)日：2021-07-07
申请号：EP19836779.9
申请日：2019-05-23
申请人： BOE Technology Group Co., Ltd. , Hefei Boe Display Technology Co., Ltd.
发明人： FENG, Xuehan , LI, Yongqian
IPC分类号： G09G3/3208 , G11C19/28
摘要： A shift register unit, a driving method thereof, a gate driver and a display device are provided. The shift register unit(10) includes a first input circuit (100), an output circuit (200) and a charging enhancement circuit (300). The first input circuit (100) is configured to charge a first node (Q) in response to a first input signal (STU1); the output circuit (200) is configured to output a shift signal (CR) and a first output signal (OUT1) under control of a level of the first node (Q); and the charging enhancement circuit (300) is configured to further enhance the level of the first node (Q) in response to a charging enhancement signal (CE). The shift register unit (10) may enhance the level of the first node (Q) and the reliability of the gate driver (20) and the display device (1) consisted of the shift register unit (10).

72. 发明公开

EP3825995A1 SHIFT REGISTER UNIT, GATE DRIVING CIRCUIT, DISPLAY DEVICE AND DRIVING METHOD 审中-公开
公开(公告)号：EP3825995A1
公开(公告)日：2021-05-26
申请号：EP19837136.1
申请日：2019-07-16
申请人： BOE TECHNOLOGY GROUP CO., LTD. , Hefei Xinsheng Optoelectronics Technology Co., Ltd.
发明人： FENG, Xuehuan , LI, Yongqian
IPC分类号： G09G3/3208
摘要： A shift register unit (10), a gate driving circuit (20), a display device (1), and a driving method. The shift register unit (10) comprises a blanking unit (100), a first transmission circuit (210), a second transmission circuit (220), a first input/output unit (310), and a second input/output unit (320). The blanking unit (100) is configured to charge a pull-up control node (H) and input a blanking pull-up signal to a blanking pull-up node (N) in response to a compensation selection control signal; the first transmission circuit (210) is electrically connected to the blanking pull-up node (N) and a first pull-up node (Q1), and in response to a first transmission signal, is configured to utilize the blanking pull-up signal to charge the first pull-up node (Q1). The shift register unit (10) may share the blanking unit (100), so that the display device (1) using the shift register unit (10) may reduce the bezel size.

73. 发明公开

EP3806097A1 SHIFT REGISTER UNIT AND DRIVING METHOD THEREFOR, GATE DRIVING CIRCUIT, AND DISPLAY DEVICE 有权
公开(公告)号：EP3806097A1
公开(公告)日：2021-04-14
申请号：EP18920744.2
申请日：2018-12-14
申请人： BOE TECHNOLOGY GROUP CO., LTD. , Hefei Xinsheng Optoelectronics Technology Co., Ltd.
发明人： FENG, Xuehuan , LI, Yongqian
IPC分类号： G11C19/28
摘要： A shift register unit, a driving method thereof, a gate driving circuit and a display device. The shift register unit includes a blanking input circuit (100), a display input circuit (200), an output circuit (300), a first control circuit (500) and a second control circuit (600). The blanking input circuit (100) inputs a blanking pull-up signal to a first node (Q) according to a blanking input signal; the display input circuit (200) inputs a display pull-up signal to the first node (Q) in response to a display input signal; the output circuit (300) outputs an composite output signal to an output terminal (Out) under the control of the first node (Q); the first control circuit (500) controls a level of a second node (QB) under the control of the first node (Q); and the second control circuit (600) controls the level of the second node (QB) in response to a blanking pull-down control signal.

74. 发明公开

EP3648091A1 DISPLAY PANEL, DISPLAY DEVICE, AND CONTROL METHOD FOR DISPLAY PANEL 审中-公开
公开(公告)号：EP3648091A1
公开(公告)日：2020-05-06
申请号：EP18825205.0
申请日：2018-02-09
申请人： BOE Technology Group Co., Ltd.
发明人： LI, Yongqian
IPC分类号： G09G3/32
摘要： A display panel, a display device and a control method for a display panel are disclosed. The display panel comprises a plurality of pixel circuits, each of which including a driving transistor, an energy storage unit, a data writing unit, a reset unit, a compensation unit, and a light emitting unit. A first terminal of the driving transistor is connected to a preset power supply, a second terminal of the driving transistor is connected to the other terminal of the energy storage unit, the reset unit, and a first terminal of the compensation unit, respectively, a second terminal of the compensation unit is connected to one terminal of the light emitting unit, and control terminals of the compensation units in all the pixel circuits are connected together. The display panel further comprises a driving circuit, which is used to control the compensation unit during a compensation period so as to disconnect the other terminal of the energy storage unit from one terminal of the light emitting unit, so that the light emitting unit in each of the pixel circuits is in an extinguished state, thereby ensuring that the displayed image is in a black state during the compensation period, effectively eliminating the influence of the IR drop, and ensuring that the pixel circuit is not disturbed during the compensation period.

75. 发明公开

EP3611720A1 SHIFT REGISTER UNIT, GATE DRIVING CIRCUIT, AND DRIVING METHOD 有权
公开(公告)号：EP3611720A1
公开(公告)日：2020-02-19
申请号：EP17902276.9
申请日：2017-09-15
申请人： BOE Technology Group Co., Ltd. , Hefei Xinsheng Optoelectronics Technology Co., Ltd.
发明人： LI, Meng , LI, Yongqian , XU, Pan , ZHANG, Miao
IPC分类号： G09G3/36 , G11C19/28
摘要： A shift register unit, a gate driving circuit comprising the shift register unit, and a driving method applied to the shift register unit. The shift register unit comprises an input module (101), an output module (102), an output reset module (103), and a first capacitor (C1). The first capacitor (C1) is connected between a pull-up node (Q) and a second clock signal end (CK2) and is configured to maintain a high level of the pull-up node (Q) by using a second clock signal received by using the second clock signal end (CK2). The shift register unit further comprises a second capacitor (C2) connected between a pull-down node (QB) and a first voltage input end (V_R), and the second capacitor (C2) is configured to, during blanking after completion of scanning of a frame, pull down a level of the pull-down node (QB) by using a reverse bias voltage received by the first voltage input end (V_R). The shift register unit has a simple structure, a full swing output, low power consumption, and low noise. Threshold voltage drift of a thin film transistor connected to an output end (OUTPUT) is restored to maintain normal display of a liquid crystal panel.

76. 发明公开

EP3507834A1 THIN-FILM TRANSISTOR, MANUFACTURING METHOD THEREOF, ARRAY SUBSTRATE AND DISPLAY DEVICE 无效
公开(公告)号：EP3507834A1
公开(公告)日：2019-07-10
申请号：EP17877378.4
申请日：2017-12-18
申请人： BOE Technology Group Co., Ltd.
发明人： XU, Pan , LI, Yongqian , YUAN, Zhidong , CAI, Zhenfei , YUAN, Can , LI, Meng
IPC分类号： H01L27/12 , H01L29/786 , H01L21/77

77. 发明公开

EP3408706A1 SUBSTRATE AND DISPLAY DEVICE CONTAINING THE SAME 有权
公开(公告)号：EP3408706A1
公开(公告)日：2018-12-05
申请号：EP16845337.1
申请日：2016-09-21
申请人： BOE Technology Group Co., Ltd.
发明人： XU, Pan , LI, Yongqian , LI, Quanhu
IPC分类号： G02F1/1362 , H01L23/60
CPC分类号： H01L27/0292 , G02F1/1362 , G02F1/136204 , G02F2201/121 , H01L27/0288 , H01L27/124 , H01L29/788
摘要： The present disclosure provides a substrate, including: a first line; a second line; a thin-film transistor (TFT) between the first line and the second line, having a floating gate structure, a source electrode electrically connected to the first line, and a drain electrode electrically connected to the second line; and a first point-discharge structure between the floating gate structure of the TFT and the first line.

78. 发明公开

EP3279889A1 PIXEL CIRCUIT AND DRIVE METHOD THEREFOR, ARRAY SUBSTRATE AND DISPLAY DEVICE 审中-公开
标题翻译：像素电路及其驱动方法，阵列基板和显示装置
公开(公告)号：EP3279889A1
公开(公告)日：2018-02-07
申请号：EP15837126.0
申请日：2015-08-19
申请人： BOE Technology Group Co., Ltd. , Hefei Xinsheng Optoelectronics Technology Co. Ltd
发明人： XU, Pan , LI, Yongqian
IPC分类号： G09G3/32
CPC分类号： G09G3/3258 , G09G3/32 , G09G3/3233 , G09G3/325 , G09G3/3291 , G09G2300/043 , G09G2300/0819 , G09G2300/0842 , G09G2300/0852 , G09G2300/0866 , G09G2310/0251 , G09G2310/08 , G09G2330/021
摘要： The present invention provides a pixel circuit, a driving method thereof, an array substrate, and a display device. The pixel circuit comprises: a reset unit, configured to output a reference signal; a data writing unit, configured to output a data signal; a compensation unit, which is connected to the reset unit and the data writing unit as well as an output node, receives a power voltage signal, and is configured to, in respective phases, reset the potential of the output node, pull the potential of the output node from the reset potential up to a first potential, pull the potential of the output node from the first potential up to a second potential, and generate a light emission drive signal and output it to the output node; and a light-emitting unit, which is connected to the output node and a cathode of a power supply and configured to emit light under the drive of the light emission drive signal in a light emission phase.
摘要翻译：本发明提供一种像素电路及其驱动方法，阵列基板和显示装置。像素电路包括：复位单元，用于输出参考信号; 数据写入单元，用于输出数据信号; 连接到复位单元和数据写入单元以及输出节点的补偿单元接收电源电压信号，并且被配置为在各个阶段中复位输出节点的电位，将电位输出节点从复位电位直到第一电位，将输出节点的电位从第一电位拉到第二电位，并产生发光驱动信号并将其输出到输出节点; 以及发光单元，其连接到电源的输出节点和阴极，并且被配置为在光发射阶段的发光驱动信号的驱动下发光。

79. 发明公开

EP4068360A1 DISPLAY SUBSTRATE, MANUFACTURING METHOD THEREFOR, AND DISPLAY DEVICE 审中-公开
公开(公告)号：EP4068360A1
公开(公告)日：2022-10-05
申请号：EP19945442.2
申请日：2019-11-29
申请人： BOE Technology Group Co., Ltd. , Hefei Xinsheng Optoelectronics Technology Co., Ltd.
发明人： LI, Meng , WU, Zhongyuan , LI, Yongqian , YUAN, Can , YUAN, Zhidong , FENG, Xuehuan , LIU, Lang , ZHANG, Dacheng
IPC分类号： H01L27/12 , H01L27/32
摘要： A display substrate and a manufacturing method thereof and a display device are provided. The display substrate includes a base substrate and sub-pixels on the base substrate. The sub-pixels are arranged in a sub-pixel array. At least one sub-pixel includes a first transistor, a second transistor, a third transistor and a storage capacitor. The first electrode of the third transistor is electrically connected to an active layer of the third transistor through a first via hole, and the first electrode of the third transistor is configured to be electrically connected to the light emitting element through a second via hole; the first via hole and the second via hole are at least partially overlapped with each other in a direction perpendicular to the base substrate. The display substrate can effectively reduce a voltage drop at an electrode of the light emitting element and improve the display effect.

80. 发明公开

EP3832637A1 SHIFT REGISTER UNIT AND DRIVING METHOD THEREOF, GATE DRIVING CIRCUIT AND DISPLAY DEVICE 审中-实审
公开(公告)号：EP3832637A1
公开(公告)日：2021-06-09
申请号：EP19835213.0
申请日：2019-05-08
申请人： BOE Technology Group Co., Ltd. , Hefei Xinsheng Optoelectronics Technology Co., Ltd
发明人： FENG, Xuehuan , LI, Yongqian
IPC分类号： G09G3/36
摘要： A shift register unit and a drive method thereof, a gate drive circuit, and a display device are provided. A shift register unit (10) includes a first noise reduction circuit (300), a first input circuit (100), and an output circuit (200); the first input circuit (100) is coupled to a first node (Q), and is configured to input a first control signal to the first node (Q) in response to a first input signal; the output circuit (200) is coupled to the first node (Q) and an output terminal (Ot), and is configured to output a first output signal to the output terminal (Ot) under control of a level of the first node (Q); and the first noise reduction circuit (300) is coupled to the output terminal, and is configured to perform noise reduction on the output terminal (Ot) in response to a level of the output terminal (Ot).

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