公开(公告)号：US12062331B2

公开(公告)日：2024-08-13

申请号：US17040582

申请日：2019-07-23

申请人： Fuzhou BOE Optoelectronics Technology Co., Ltd. ,  BOE TECHNOLOGY GROUP CO., LTD.

发明人： Zuwei Weng ,  Weize Xu ,  Bin Weng

IPC分类号： G09G3/3233 ,  G09G3/3266 ,  G09G3/3275

CPC分类号： G09G3/3233 ,  G09G3/3266 ,  G09G3/3275

摘要： An OLED pixel compensation circuit, a driving method thereof, and a display device are provided. The OLED pixel compensation circuit includes an input sub-circuit, a compensation sub-circuit, a driving sub-circuit and a light-emitting sub-circuit. The input sub-circuit is coupled to the compensation sub-circuit and configured to input a data signal into the compensation sub-circuit. The compensation sub-circuit is coupled to the driving sub-circuit and the light-emitting sub-circuit and configured to compensate a threshold voltage of the driving sub-circuit. The driving sub-circuit is configured to drive the light-emitting sub-circuit to emit light after the threshold voltage of the driving sub-circuit is compensated.

公开(公告)号：US20240265843A1

公开(公告)日：2024-08-08

申请号：US18022479

申请日：2022-03-14

申请人： BOE Technology Group Co., Ltd.

发明人： Weixing LIU ,  Jintao PENG ,  Jiao LI ,  Chunfang ZHANG ,  Xinxing WANG

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

CPC分类号： G09G3/2092 ,  G09G3/3266 ,  G09G2310/0232 ,  G09G2310/0267 ,  G09G2310/0286 ,  G09G2330/021 ,  G11C19/28

摘要： Provided is a shift register unit. The shift register unit includes: a first input circuit, connected to a first control terminal, a turn-on signal terminal, a first node and a second node; a second input circuit, connected to a first power supply terminal, the first node and a third node; an output control circuit, connected to the first node, the second node, the third node, a second control terminal and a fourth node; and an output circuit, connected to the second node, the fourth node, the first power supply terminal, a second power supply terminal, a first output terminal and a second output terminal.

公开(公告)号：US12057071B2

公开(公告)日：2024-08-06

申请号：US18219544

申请日：2023-07-07

申请人： LG Display Co., Ltd. ,  Industry-University Cooperation Foundation Hanyang University

发明人： Harkjin Kim ,  Kwanghwan Ji ,  Byong-Deok Choi ,  Bum Sik Kim ,  Dong-Young Kim ,  Yong Duck Kim ,  June Hee Lee

IPC分类号： G09G3/32 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3291

CPC分类号： G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0842 ,  G09G2310/08

摘要： Disclosed are a display device and a method for driving a pixel of the display device. The device and method is capable of securing a time to sense a threshold voltage of a driving transistor and of compensating for the threshold voltage during operation of the pixel. Each of a plurality of pixels has a 5T1C structure including first to fourth transistors and a driving transistor. The first to fourth transistors are configured to apply driving signals through first to fourth scan lines, respectively. Thus, even without increasing the number of driving signals applied to each pixel, a long time for sensing a threshold voltage of each pixel can be secured.

公开(公告)号：US12057066B2

公开(公告)日：2024-08-06

申请号：US17581975

申请日：2022-01-23

申请人： Samsung Display Co., Ltd.

发明人： Jinsung An ,  Sungho Kim ,  Seokje Seong ,  Minwoo Woo ,  Wangwoo Lee ,  Jiseon Lee

IPC分类号： G09G3/3233 ,  G09G3/3266 ,  G09G3/3283 ,  H10K59/131

CPC分类号： G09G3/3233 ,  H10K59/131 ,  G09G3/3266 ,  G09G3/3283 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2340/0407

摘要： A display apparatus that prevents visual recognition of flickering in each of display areas having different resolutions includes a first pixel circuit, a first display element, a second pixel circuit, and a second display element. The first pixel circuit includes: a first driving transistor configured to control a first current that flows to the first display element; and a first initializing transistor configured to apply a first initializing voltage to a gate of the first driving transistor in response to a first scan signal. The second pixel circuit includes: a second driving transistor configured to control a second current that flows to the second display element; and a second initializing transistor configured to apply a second initializing voltage having a level different from a level of the first initializing voltage to a gate of the second driving transistor in response to the first scan signal.

公开(公告)号：US20240258331A1

公开(公告)日：2024-08-01

申请号：US18439855

申请日：2024-02-13

申请人： Japan Display Inc.

发明人： Tatsuya TODA ,  Toshinari SASAKI ,  Masayoshi FUCHI

IPC分类号： H01L27/12 ,  G02F1/1362 ,  G02F1/1368 ,  G09G3/3225 ,  G09G3/3266 ,  H10K59/12 ,  H10K59/123 ,  H10K59/124 ,  H10K59/131

CPC分类号： H01L27/124 ,  G02F1/136227 ,  G02F1/136286 ,  G02F1/1368 ,  G09G3/3225 ,  G09G3/3266 ,  H01L27/1259 ,  H10K59/123 ,  H10K59/124 ,  H10K59/131 ,  G02F1/136295 ,  G09G2300/0861 ,  H01L27/1225 ,  H01L27/1255 ,  H10K59/1201

摘要： A semiconductor device including: a first gate electrode; a first gate insulating layer on the first gate electrode; a first oxide semiconductor layer on the first insulating layer; source and drain electrodes connected to the first oxide semiconductor layer; a second gate insulating layer on the first oxide semiconductor layer; a second oxide semiconductor layer on the second gate insulating layer; a second gate electrode on the second oxide semiconductor layer, the second gate electrode being in contact with the second oxide semiconductor layer; a first insulating layer on the second gate electrode, the first insulating layer having a part of a first aperture overlapping with the second oxide semiconductor layer in a planar view; and a first connecting electrode electrically connecting the first gate electrode and the second gate electrode via the first aperture.

公开(公告)号：US20240257783A1

公开(公告)日：2024-08-01

申请号：US18633011

申请日：2024-04-11

申请人： Japan Display Inc.

发明人： Katsuya ANZAI ,  Hideki KAWADA ,  Hiroshi MATSUDA ,  Yukitada IWASAKI

IPC分类号： G09G3/36 ,  G09G3/20 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3275 ,  H10K59/131

CPC分类号： G09G3/3677 ,  G09G3/2096 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/3648 ,  G09G3/3688 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2300/0465 ,  G09G2310/0232 ,  H10K59/131

摘要： An electro-optical device is provided and includes a plurality of first signal lines extending in a first direction on a substrate; a plurality of second signal lines extending in a second direction on the substrate, the second direction intersecting the first direction; a pixel area in which a plurality of pixel electrodes are disposed; an outer peripheral edge of the pixel area having a curved portion or a bent portion; and a first circuit block, a second circuit block, and a third circuit block arranged along the outer peripheral edge, wherein the second circuit block is arranged between the first circuit block and the first circuit block, and a first gap between the first circuit bock and the second circuit block is different from a second gap between the second circuit block and the third circuit block.

公开(公告)号：US20240257765A1

公开(公告)日：2024-08-01

申请号：US18426934

申请日：2024-01-30

申请人： LG DISPLAY CO., LTD.

发明人： Jae-Min KIM ,  Bong-Hwan KIM

IPC分类号： G09G3/3266 ,  H10K59/121

CPC分类号： G09G3/3266 ,  H10K59/1213 ,  G09G2300/0426 ,  G09G2310/08

摘要： A light emitting display device in which odd scan stages receive odd first and second scan clocks alternately, and even scan stages receive an even scan clock, in a multi-frequency mode in which a first region is driven at a higher frequency than a second region, an odd first scan clock is provided to a n+5-th scan stage at a begin of the second region, an even scan clock is provided to a n+4-th scan stage at an end of the first region, and an odd second scan clock is provided to a n+3-th scan stage of the first region, and in the multi-frequency mode, during a driving frame of refreshing the first region and refresh-skipping the second region, the odd first scan clock does not have an i+2-th clock pulse corresponding to a scan pulse of the n+4-th first scan line.

公开(公告)号：US20240257763A1

公开(公告)日：2024-08-01

申请号：US18423508

申请日：2024-01-26

申请人： LG Display Co., Ltd.

发明人： Jun Ho BONG ,  Jae Young KIM

IPC分类号： G09G3/3266 ,  G09G3/3233

CPC分类号： G09G3/3266 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2320/045 ,  G09G2330/021

摘要： A display device including a gate driver capable of preventing threshold voltage shift of thin film transistors constituting the gate driver from influencing an output of the gate driver is disclosed. The display device includes a display panel including a plurality of gate lines and a plurality of data lines, and a gate driver including at least one scan driver. The gate driver sequentially outputs a scan signal to the plurality of gate lines. The at least one scan driver includes an output buffer configured to output a first clock signal as a scan signal in response to signals of a Q-node and a QB-node, and a first transistor configured to supply a low-level voltage to the QB-node in response to a start signal or a scan signal of an upstream stage.

公开(公告)号：US20240257749A1

公开(公告)日：2024-08-01

申请号：US18539482

申请日：2023-12-14

申请人： LG Display Co., Ltd.

发明人： Ki Min SON ,  Ki Bok PARK ,  Chang Hee KIM

IPC分类号： G09G3/3233 ,  G09G3/3266

CPC分类号： G09G3/3233 ,  G09G3/3266 ,  G09G2300/0452 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/061 ,  G09G2310/08

摘要： Disclosed are a display panel, a pixel circuit arranged therein and a display device including the same. The display panel includes a sub-pixel of a first color, a sub-pixel of a second color, and a sub-pixel of a third color. Each of the sub-pixels of the first color, the second color, and the third color includes: a driving element including a first electrode coupled to a first node, a gate electrode coupled to a second node, and a second electrode coupled to a third node. The display panel includes a light emitting element including an anode electrode connected to the fourth node and configured to be driven by a current from the driving element; a first capacitor connected between the second node and the third node; and a second capacitor coupled between a constant voltage line and the third node or between the third node and the fourth node.

公开(公告)号：US20240257735A1

公开(公告)日：2024-08-01

申请号：US18377036

申请日：2023-10-05

申请人： LG DISPLAY CO., LTD.

发明人： Yong Chan PARK ,  Ju Hong KIM

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

CPC分类号： G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2310/0208 ,  G09G2320/0233

摘要： A pixel circuit of a display apparatus includes a driving transistor including a gate electrode coupled with a gate node, a drain electrode coupled with a high level pixel power source, and a source electrode coupled with a source node; a light emitting device coupled with the source node and coupled with a low level pixel power source; a first transistor turned on based on a first scan signal; a second transistor turned on based on a second scan signal; a first capacitor coupled between the gate node and the source node; a second capacitor coupled with the source node at one electrode thereof; a third transistor turned on based on a third scan signal to couple the gate node with the other electrode of the second capacitor; and a fourth transistor turned on based on a fourth scan signal to apply a data voltage to the gate node.