公开(公告)号：US12101979B2

公开(公告)日：2024-09-24

申请号：US17435363

申请日：2021-03-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jiangnan Lu ,  Libin Liu ,  Jie Zhang ,  Mei Li ,  Yuhan Qian ,  Shiming Shi

IPC: H10K59/12 ,  H10K50/813 ,  H10K50/824 ,  H10K59/131 ,  H10K71/00 ,  H10K59/35

CPC classification number: H10K59/1315 ,  H10K50/813 ,  H10K50/824 ,  H10K71/00 ,  H10K59/1201 ,  H10K59/351

Abstract: The display substrate includes: a substrate, an auxiliary cathode layer, a first insulating layer, an anode layer, a second insulating layer, and a cathode layer that are sequentially stacked on the substrate in a direction away from the substrate; the anode layer includes a plurality of anode patterns spaced apart from each other, and an anode spacing area is formed between adjacent anode patterns; an orthographic projection of the auxiliary cathode layer on the substrate and an orthographic projection of the cathode layer on the substrate have an auxiliary overlapping area, and the auxiliary cathode layer is electrically connected to the cathode layer through a connection via hole in the auxiliary overlapping area; an orthographic projection of the connection via hole on the substrate is located inside the orthographic projection of the anode spacing area on the substrate.

公开(公告)号：US12034079B2

公开(公告)日：2024-07-09

申请号：US17765289

申请日：2021-04-02

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yuhan Qian ,  Libin Liu

IPC: H01L29/786 ,  G09G3/20 ,  G11C19/28 ,  H01L27/12 ,  H01L29/66

CPC classification number: H01L29/78645 ,  G09G3/20 ,  G11C19/28 ,  H01L27/1222 ,  H01L27/124 ,  H01L27/1255 ,  H01L27/127 ,  H01L29/66757 ,  H01L29/78633 ,  H01L29/78675 ,  G09G2300/0426 ,  G09G2310/0286

Abstract: Provided are an array substrate and a fabrication method therefor, a shift register unit, and a display panel. The array substrate includes a first transistor having a double gate structure, and further includes an active layer arranged on one side of the base substrate and a first conductive layer. The active layer includes a first conductor portion connected between a first semiconductor portion and a second semiconductor portion, the first semiconductor portion and a second semiconductor portion forming a channel region of the first transistor. The first conductive layer includes a first conductive portion connected to a stable voltage source, an orthographic projection of the first conductive portion on the base substrate at least partially overlaps with an orthographic projection of the first conductor portion on the base substrate, and the first conducting portion and the first conductor portion form two electrodes of a parallel-plate capacitor.

公开(公告)号：US12131698B2

公开(公告)日：2024-10-29

申请号：US17638720

申请日：2021-02-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yuhan Qian ,  Libin Liu

IPC: H01L27/14 ,  G09G3/3233 ,  H10K59/131 ,  H10K71/00 ,  H10K59/12

CPC classification number: G09G3/3233 ,  H10K59/131 ,  H10K71/00 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  H10K59/1201

Abstract: A pixel driving circuit includes a first thin film transistor having a double-gate structure, a conductive layer and a second thin film transistor. The first thin film transistor includes a first active layer. The first active layer includes a first and second semiconductor portions and a conductor portion located therebetween. The conductor portion has a first doping concentration. The conductive layer is at least partially opposite to the conductor portion, so that the conductive layer and the conductor portion form a capacitor. The conductive layer is configured to electrically connect to an initial voltage terminal. The second thin film transistor includes a second active layer and a first gate. A portion of the second active layer directly opposite to the first gate has a second doping concentration, and the second doping concentration is lower than the first doping concentration.

公开(公告)号：US11875722B2

公开(公告)日：2024-01-16

申请号：US17771102

申请日：2021-05-20

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yuhan Qian ,  Libin Liu ,  Long Han

IPC: G09G3/20 ,  G11C19/28

CPC classification number: G09G3/2092 ,  G11C19/28 ,  G09G2300/0452 ,  G09G2300/0852 ,  G09G2310/0286

Abstract: A display panel and a display device. The display panel comprises a transition region, and further comprises: a base substrate; multiple pixel units located on the side of the base substrate and integrated in the transition region; and a first gate drive circuit located on the side of the base substrate facing the pixel units, integrated in the transition region, and comprising a first shift register unit and a first signal line group. The first signal line group comprises a first signal line segment group used for providing a drive signal for the first shift register unit. The base substrate comprises multiple integration portions which are located between orthographic projections of two adjacent pixel units in the same row on the base substrate.

公开(公告)号：US12089446B2

公开(公告)日：2024-09-10

申请号：US17599007

申请日：2021-02-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yuhan Qian ,  Libin Liu ,  Jiangnan Lu ,  Mei Li ,  Shiming Shi ,  Jie Zhang

IPC: H01L29/08 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K59/121 ,  H10K59/131 ,  H10K71/00 ,  H10K59/12

CPC classification number: H10K59/1213 ,  H10K50/15 ,  H10K50/16 ,  H10K50/171 ,  H10K59/1216 ,  H10K59/131 ,  H10K71/00 ,  H10K59/1201

Abstract: A display substrate includes: a base substrate; a light-emitting unit in each pixel region and including a first electrode, an organic light-emitting layer, and a second electrode sequentially disposed in a direction away from the base substrate; an auxiliary conductive layer between the light-emitting unit and the base substrate; a pixel circuit in each pixel region and including a driving transistor. The auxiliary conductive layer is on a side of the pixel circuit away from the base substrate, the second electrode has a portion extending out of the pixel region and coupling to the auxiliary conductive layer through a via hole not overlapping the pixel region, the auxiliary conductive layer is insulated and spaced apart from the first electrode and has a mesh or chain shape, and a material of the auxiliary conductive layer is the same as a material of the first and second electrodes of the driving transistor.

公开(公告)号：US11900883B2

公开(公告)日：2024-02-13

申请号：US17630634

申请日：2021-03-19

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Guangliang Shang ,  Can Zheng ,  Jiangnan Lu ,  Yuhan Qian ,  Li Wang ,  Libin Liu ,  Shiming Shi ,  Dawei Wang

IPC: G11C19/28 ,  G09G3/3266

CPC classification number: G09G3/3266 ,  G11C19/28 ,  G09G2310/0286

Abstract: A shift register unit, a method for driving a shift register unit, a gate driving circuit, and a display device are provided. The shift register unit includes: a second noise reduction control circuit. The second noise reduction control circuit includes: a first control circuit, configured to transmit a first voltage to a second noise reduction control node; a first coupling circuit, configured to store a level of the second noise reduction control node and adjust the level of the second noise reduction control node; a second coupling circuit, configured to reduce an adjustment magnitude of the first coupling circuit in case of adjusting the level of the second noise reduction control node; a transmission circuit, configured to connect the first noise reduction control node and the second noise reduction control node; and a storage circuit, configured to store the level of the first noise reduction control node.