公开(公告)号：US20240169950A1

公开(公告)日：2024-05-23

申请号：US17779150

申请日：2022-05-13

申请人： HUIZHOU CHINA STAR OPTOELECTRONICS DISPLAY CO., LTD. ,  TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.

发明人： Shasha JIA

IPC分类号： G09G3/36

CPC分类号： G09G3/3677 ,  G09G2300/0408 ,  G09G2310/08

摘要： A GOA circuit and a display panel according to an embodiment of the present disclosure include multi-stage cascaded GOA units. Each GOA unit includes a pull-up control module, an output module, a stage transfer module, a pull-down module, and a pull-down maintenance module. The GOA circuit has a simple structure and can reduce a space occupied by a circuit layout while ensuring the circuit function. Therefore, an aperture ratio of the display panel is increased, and requirements for a narrow frame and a high resolution for the display panel are met.

公开(公告)号：US20240161703A1

公开(公告)日：2024-05-16

申请号：US18422234

申请日：2024-01-25

申请人： Xiamen Tianma Microelectronics Co., Ltd.

发明人： Renliang ZHU

IPC分类号： G09G3/3266 ,  G09G3/32 ,  G09G3/36 ,  G11C19/28

CPC分类号： G09G3/3266 ,  G09G3/32 ,  G09G3/3677 ,  G09G2300/0426 ,  G09G2310/0267 ,  G09G2310/0286 ,  G09G2310/08 ,  G11C19/28

摘要： A display panel includes a driver circuit, multiple scan lines and multiple pixels arranged in an array. Gates of switch transistors in at least part of the same row of pixels are electrically connected to the same one scan line. In the driver circuit, the i-th shift register unit is cascaded with the (i+n)-th shift register unit; shift register units supply gate drive signals to the multiple scan lines respectively. The valid pulses of the gate drive signals each have a width denoted as T0; T0>(Th+k*Th), 0

公开(公告)号：US11984092B2

公开(公告)日：2024-05-14

申请号：US17051080

申请日：2020-08-28

申请人： WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.

发明人： You Pan

IPC分类号： G09G3/36 ,  G02F1/1368 ,  G09G3/3266 ,  G11C19/28

CPC分类号： G09G3/3677 ,  G09G3/3266 ,  G09G2330/06

摘要： The present application discloses a display panel and a display device. The display panel includes a non-display region and a gate driver on array (GOA) unit region in the non-display region. The GOA unit region includes multi-level GOA units arranged in multiple columns, thereby improving a space limitation problem associated with arranging a plurality of GOA units in a display panel while the display panel achieves high resolution.

公开(公告)号：US20240135898A1

公开(公告)日：2024-04-25

申请号：US18395828

申请日：2023-12-26

申请人： HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD. ,  BOE TECHNOLOGY GROUP CO., LTD.

发明人： Rui MA ,  Xiaoye MA ,  Xianjie SHAO ,  Ruifang DU

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

CPC分类号： G09G3/3677 ,  G09G3/3266 ,  G09G3/3674 ,  G11C19/28 ,  G02F1/1345 ,  G09G2300/0426 ,  G09G2310/0286 ,  G09G2310/061 ,  G09G2330/06

摘要： A display substrate and a display device are disclosed. The display substrate includes a base substrate and a plurality of shift register units; each of the plurality of shift register units includes an input circuit, an output circuit, a first reset circuit and a frame reset signal connection wire; the frame reset signal connection wire and is configured to provide a frame reset signal to the first reset circuit; the first reset circuit is configured to respond to the frame reset signal, so as to reset a first node and an output end within a time period between two display frames of the display substrate; the first reset circuit includes a first transistor and a second transistor, and the frame reset signal connection wire, a gate of the first transistor and a gate of the second transistor are provided on a first conductive layer.

公开(公告)号：US20240135887A1

公开(公告)日：2024-04-25

申请号：US18389682

申请日：2023-12-19

申请人： Sony Semiconductor Solutions Corporation

发明人： Naobumi Toyomura

IPC分类号： G09G3/3275 ,  G09G3/3266 ,  G09G3/36

CPC分类号： G09G3/3275 ,  G09G3/3266 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2310/0259 ,  G09G2320/0209

摘要： A display device includes at least display elements arranged in a two-dimensional matrix, data lines provided for respective display element columns, and a source driver that supplies a video signal voltage to the data lines, in which a display element row includes a display element belonging to a first group and a display element belonging to a second group different from the first group, the source driver includes a ramp signal generating circuit and a switch circuit that causes a data line to hold a video signal voltage, and when output of the ramp signal generating circuit and a data line are switched from a connected state to a disconnected state in order to cause the data line corresponding to a certain display element to hold a video signal voltage, a data line corresponding to a display element belonging to a group different from the group, to which the certain display element belongs, and output of the ramp signal generating circuit are switched from the disconnected state to the connected state.

公开(公告)号：US11967259B2

公开(公告)日：2024-04-23

申请号：US17265100

申请日：2018-12-07

申请人： HKC CORPORATION LIMITED

发明人： Jiankun Han

IPC分类号： G09G3/00 ,  G02F1/1362 ,  G09G3/36

CPC分类号： G09G3/006 ,  G02F1/136295 ,  G09G3/3677 ,  G09G2330/12

摘要： A method of manufacturing a display panel comprises a first substrate is manufactured, a plurality of scanning lines and shorting bars are formed on the first base substrate, the scanning lines are located in the first display area and extend to the first peripheral wiring area, and the shorting bars are located in the first cutting area, a shorting bar is connected to one end of a plurality of odd-numbered scanning lines, or a shorting bar is connected to one end of a plurality of even-numbered scanning lines, to make the odd-numbered scanning lines each in an electrical connection with at least another odd-numbered scanning line, or the even-numbered scanning lines each in an electrical connection with at least another even-numbered scanning line.

公开(公告)号：US11955192B2

公开(公告)日：2024-04-09

申请号：US18206702

申请日：2023-06-07

申请人： Semiconductor Energy Laboratory Co., Ltd.

发明人： Atsushi Umezaki

IPC分类号： G11C19/18 ,  G09G3/3266 ,  G09G3/36 ,  H01L27/12 ,  H01L29/786

CPC分类号： G11C19/184 ,  G09G3/3266 ,  G09G3/3677 ,  H01L27/1225 ,  H01L29/7869 ,  G09G2300/0426 ,  G09G2310/0286 ,  G09G2340/0492

摘要： A semiconductor device or the like with a novel structure that can change the orientation of the display is provided. A semiconductor device or the like with a novel structure, in which a degradation in transistor characteristics can be suppressed, is provided. A semiconductor device or the like with a novel structure, in which operation speed can be increased, is provided. A semiconductor device or the like with a novel structure, in which a dielectric breakdown of a transistor can be suppressed, is provided. The semiconductor device or the like has a circuit configuration capable of switching between a first operation and a second operation by changing the potentials of wirings. By switching between these two operations, the scan direction is easily changed. The semiconductor device is configured to change the scan direction.

公开(公告)号：US20240112646A1

公开(公告)日：2024-04-04

申请号：US18233359

申请日：2023-08-14

申请人： Sharp Display Technology Corporation

发明人： Jun NISHIMURA ,  Kengo HARA ,  Yohei TAKEUCHI ,  Yoshihito HARA ,  Tohru DAITOH

IPC分类号： G09G3/36 ,  G06F3/041 ,  G09G3/20

CPC分类号： G09G3/3677 ,  G06F3/04166 ,  G09G3/2096 ,  G09G2310/0286 ,  G09G2330/021

摘要： A set circuit in a unit circuit in a gate driver of a display device includes a setting transistor, a first auxiliary transistor, and a second auxiliary transistor. The setting transistor includes a source terminal connected to an internal node, a gate terminal connected to a set input terminal, and a drain terminal connected to the set input terminal via the first auxiliary transistor and also connected to an input terminal via the second auxiliary transistor in a diode-connected form. Each transistor is controlled to be in an on state and an off state during normal drive and is controlled to be in the off state and the on state during a pause period by a control signal supplied to the input terminal.

公开(公告)号：US11947228B2

公开(公告)日：2024-04-02

申请号：US17412495

申请日：2021-08-26

申请人： Semiconductor Energy Laboratory Co., Ltd.

发明人： Shunpei Yamazaki ,  Miyuki Hosoba ,  Junichiro Sakata ,  Hideaki Kuwabara

IPC分类号： H01L27/12 ,  G02F1/1362 ,  H01L29/45 ,  H01L29/51 ,  H01L29/66 ,  H01L29/786 ,  G02F1/1339 ,  G02F1/1343 ,  G02F1/1345 ,  G02F1/136 ,  G02F1/1368 ,  G02F1/167 ,  G09G3/34 ,  G09G3/36 ,  H10K59/121

CPC分类号： G02F1/136227 ,  H01L27/1218 ,  H01L27/1225 ,  H01L27/124 ,  H01L27/1248 ,  H01L27/1255 ,  H01L27/1274 ,  H01L29/45 ,  H01L29/513 ,  H01L29/518 ,  H01L29/66742 ,  H01L29/66969 ,  H01L29/786 ,  H01L29/78606 ,  H01L29/78648 ,  H01L29/7869 ,  H01L29/78696 ,  G02F1/1339 ,  G02F1/134336 ,  G02F1/1345 ,  G02F1/13606 ,  G02F1/136286 ,  G02F1/1368 ,  G02F1/167 ,  G02F2201/123 ,  G09G3/344 ,  G09G3/3677 ,  G09G2300/0426 ,  G09G2310/0286 ,  G09G2310/08 ,  H10K59/1213

摘要： An object is to provide a semiconductor device having a structure in which parasitic capacitance between wirings can be efficiently reduced. In a bottom gate thin film transistor using an oxide semiconductor layer, an oxide insulating layer used as a channel protection layer is formed above and in contact with part of the oxide semiconductor layer overlapping with a gate electrode layer, and at the same time an oxide insulating layer covering a peripheral portion (including a side surface) of the stacked oxide semiconductor layer is formed. Further, a source electrode layer and a drain electrode layer are formed in a manner such that they do not overlap with the channel protection layer. Thus, a structure in which an insulating layer over the source electrode layer and the drain electrode layer is in contact with the oxide semiconductor layer is provided.

公开(公告)号：US20240105139A1

公开(公告)日：2024-03-28

申请号：US18236906

申请日：2023-08-22

申请人： Sharp Display Technology Corporation

发明人： Satoshi HORIUCHI ,  Akane SUGISAKA ,  Seiya KAWAMORITA ,  Shinji MATSUBARA

IPC分类号： G09G3/36 ,  G02F1/1362 ,  G02F1/1368

CPC分类号： G09G3/3677 ,  G02F1/136286 ,  G02F1/1368 ,  G09G2310/08

摘要： Provided is a display device including gate drive circuits, a signal line connected to the gate drive circuit, a signal line connected to the gate drive circuit, a gate terminal, inspection terminals, and a connection line. The connection line connects the signal line and the signal line. The inspection terminal is disposed on the signal line. The inspection terminal is disposed on the signal line. The inspection terminals are terminals input with an inspection signal at the time of inspection.