公开(公告)号：US11009752B2

公开(公告)日：2021-05-18

申请号：US16407942

申请日：2019-05-09

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Liwei Liu ,  Yoonsung Um ,  Hui Zhang ,  Feng Liao ,  Kai Hou ,  Hongrun Wang ,  Shunhang Zhang ,  Yue Jia

IPC: G02F1/1339 ,  G02F1/1335 ,  G02F1/1337 ,  G02F1/1343

Abstract: The present disclosure relates to a display panel and a manufacturing method thereof, a display device. The display panel includes an array substrate and a color film substrate set oppositely, the array substrate includes multiple subpixel units arranged in an array and an orientation layer covering multiple subpixel units, each subpixel unit includes an opening area; the color film substrate is provided with support columns, orthographic projections of the support columns on the subpixel units are outside the opening areas, the orientation layer is formed with support protrusions which protrude from a surface of the orientation layer, orthographic projections of the support protrusions on the subpixel units are outside the opening areas, the support columns contact top ends of the support protrusions to prevent the support columns from contacting the surface of the orientation layer.

公开(公告)号：US20190250455A1

公开(公告)日：2019-08-15

申请号：US16242261

申请日：2019-01-08

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yunsik Im ,  Yoonsung Um ,  Liwei Liu ,  Feng Liao ,  Hui Zhang ,  Yunyun Tian ,  Hyunsic Choi

IPC: G02F1/1335 ,  G02F1/1343 ,  G02F1/1362

CPC classification number: G02F1/133528 ,  G02F1/134309 ,  G02F1/136209 ,  G02F2001/133548 ,  G02F2001/136222

Abstract: The present disclosure provides a display panel, a manufacturing method thereof and a display device. The display panel includes: a first substrate and a second substrate arranged opposite to each other, a liquid crystal layer arranged between the first substrate and the second substrate; and a first polarizer arranged between the first substrate and the liquid crystal layer. Liquid crystal molecules in the liquid crystal layer are initially aligned without an alignment film.

公开(公告)号：US20180284510A1

公开(公告)日：2018-10-04

申请号：US15795206

申请日：2017-10-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yoon Sung Um ,  Liwei Liu ,  Zheng Fang ,  Yue Jia

IPC: G02F1/133 ,  G02F1/1362 ,  G02F1/1368

CPC classification number: G02F1/13306 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2201/121 ,  G02F2201/123 ,  G09G3/00 ,  G09G3/3607 ,  G09G3/3655 ,  G09G2300/0447 ,  G09G2300/0465 ,  G09G2320/0242

Abstract: The embodiments of the present disclosure provide a driving method and driving apparatus of a display panel. The driving method comprises: dividing a driving period into N sub-periods, each of which is further divided into a first time period and a second time period, where N is a positive integer greater than or equal to 1; and applying a first common voltage to a first common electrode in the first time period and applying a second common voltage to the first common electrode in the second time period, wherein the second time period is longer than the first time period in duration. In the present disclosure, a common voltage in a modulation mode is applied to the first common electrode, so that an average arrangement direction of liquid crystal molecules in a pixel unit changes in a driving period.

公开(公告)号：US12302678B2

公开(公告)日：2025-05-13

申请号：US18648499

申请日：2024-04-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Ming Yang ,  Seungwoo Han ,  Zhuo Li ,  Dingchang Zhang ,  Xuan Feng ,  Hui Zhang ,  Liwei Liu

IPC: H10H20/80 ,  G09G3/32 ,  G09G3/3233 ,  H01L25/16 ,  H10D86/40 ,  H10D86/60 ,  H10H20/857

Abstract: A pixel circuit includes a pixel driving circuit and a bonding unit connected thereto. The bonding unit includes a first bonding terminal group and at least one second bonding terminal group that are arranged in parallel, and the first bonding terminal group and a second bonding terminal group are configured to bond light-emitting devices. The first bonding terminal group includes a first terminal and a second terminal, and the second bonding terminal group includes a third terminal and a fourth terminal. The first terminal and the third terminal are connected, and are both connected to the pixel driving circuit; the second terminal and the fourth terminal are connected, and are both connected to a set voltage signal line.

公开(公告)号：US12216369B2

公开(公告)日：2025-02-04

申请号：US17758122

申请日：2021-08-27

Applicant: BOE Technology Group Co., Ltd.

Inventor： Hui Zhang ,  Liwei Liu ,  Kai Hou ,  Changfeng Li ,  Hongrun Wang ,  Shunhang Zhang ,  Yunsik Im ,  Fuqiang Li

IPC: G02F1/1362 ,  G02F1/1333 ,  G02F1/1339 ,  G02F1/1368 ,  H01L27/12

Abstract: A display panel and a display apparatus. The display panel includes: an array substrate, including: scanning lines, data lines and sub-pixels, where at least two sub-pixels adjacent in a first direction and a second direction constitute a pixel island; an opposing substrate; a liquid crystal layer; and supporting parts, including a plurality of first supporting parts and a plurality of second supporting parts. Each supporting part includes: a first sub-supporting part and a second sub-supporting part; orthographic projections of the first sub-supporting parts divide orthographic projections of the second sub-supporting parts into first parts and second parts; and in each supporting part, a length of the first part is not equal to a length of the second part.

公开(公告)号：US12033573B2

公开(公告)日：2024-07-09

申请号：US17762334

申请日：2021-05-07

Applicant: BOE Technology Group Co., Ltd.

Inventor： Hongrun Wang ,  Pan Xu ,  Changfeng Li ,  Hui Zhang ,  Shunhang Zhang ,  Kai Hou ,  Liwei Liu ,  Yunsik Im

IPC: G09G3/3225 ,  H10K59/131

CPC classification number: G09G3/3225 ,  H10K59/131 ,  G09G2300/0426 ,  G09G2310/0286

Abstract: A display substrate and a display device are provided. Sub-pixels in a display substrate are divided into sub-pixel groups, wherein the sub-pixel groups include at least two sub-pixels, and at least two sub-pixels share the same pixel driving circuit; at least two light-emitting control sub-circuit in the pixel driving circuit correspond to at least two light-emitting element included in at least two sub-pixels, at least two light-emitting control sub-circuits correspond to at least two light-emitting control signal lines, and each light-emitting control sub-circuit is coupled to an output terminal of a compensation driving sub-circuit, a corresponding light-emitting element and a corresponding light-emitting control signal line; each light-emitting control sub-circuit is configured to control turning on or off a connection between the output terminal of the compensation driving sub-circuit and the corresponding light-emitting element under the control of the corresponding light-emitting control signal line.

公开(公告)号：US20240168593A1

公开(公告)日：2024-05-23

申请号：US17789723

申请日：2021-03-04

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xuefei Sun ,  Jaegeon You ,  Xinxing Wang ,  Liyan Liu ,  Liwei Liu

IPC: G06F3/044

CPC classification number: G06F3/0446 ,  G06F3/0448 ,  G06F2203/04111

Abstract: A touch-control electrode structure, display panel, and an electronic device are provided. The touch-control electrode structure includes first touch-control electrodes and second touch-control electrodes; the first touch-control electrodes are arranged along a first direction, and each first touch-control electrode extends in a second direction; the second touch-control electrodes are arranged along the second direction, and each second touch-control electrode extends in the first direction; the first touch-control electrode includes first touch-control sub-electrodes arranged along the second direction; the first touch-control sub-electrode includes a grid-shaped structure; the grid-shaped structure includes a first grid portion and second grid portions, the first grid portion is configured to transmit a touch-control signal, and the second grid portions are spaced apart from and insulated from the first grid portion; and in each first touch-control sub-electrode, the second grid portions are periodically arranged along an extending direction of an edge of the first touch-control sub-electrode.

公开(公告)号：US11906853B2

公开(公告)日：2024-02-20

申请号：US17968963

申请日：2022-10-19

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xue Dong ,  Liwei Liu ,  Xinxing Wang ,  Yun Sik Im ,  Hyun Sic Choi ,  Jaegeon You ,  Yinglong Huang ,  Heecheol Kim

IPC: G02F1/133 ,  G02F1/1339 ,  G02F1/1335 ,  G02F1/1362 ,  G02F1/1368 ,  H01L27/12

CPC classification number: G02F1/13394 ,  G02F1/1368 ,  G02F1/13396 ,  G02F1/133512 ,  G02F1/136286 ,  H01L27/124

Abstract: A display panel and a display device are provided. In the display panel, a plurality of main spacers and a plurality of auxiliary spacers are disposed on a side of a first substrate close to a second substrate, the second substrate further includes a plurality of first lug bosses and a plurality of second lug bosses; an orthographic projection of the main spacers on the second substrate is at least partially overlapped with an orthographic projection of a corresponding first lug boss on the second substrate; an orthographic projection of the auxiliary spacers on the second substrate is away from an orthographic projection of a corresponding second lug boss on the second substrate by a preset distance; and the distance between each of the auxiliary spacers and the corresponding second lug boss is less than a height of the first lug bosses.

公开(公告)号：US11837133B2

公开(公告)日：2023-12-05

申请号：US17609504

申请日：2021-01-28

Applicant: BOE Technology Group Co., Ltd.

Inventor： Weixing Liu ,  Wei Qin ,  Kuanjun Peng ,  Tieshi Wang ,  Chunfang Zhang ,  Hui Zhang ,  Changfeng Li ,  Shunhang Zhang ,  Kai Hou ,  Hongrun Wang ,  Liwei Liu ,  Yunsik Im ,  Wanpeng Teng ,  Xiaolong Li ,  Kai Guo ,  Zhiqiang Xu

IPC: G09G3/20 ,  G11C19/28

CPC classification number: G09G3/20 ,  G11C19/287 ,  G09G2300/0408 ,  G09G2310/0267 ,  G09G2310/0286 ,  G09G2310/08

Abstract: The present disclosure provides a gate driving circuit, a method of driving a gate driving circuit, and a display panel. The gate driving circuit includes a plurality of driving units connected in cascade. Each driving unit includes: N shift register units; and a mode control circuit connected to the N shift register units, wherein the mode control circuit is configured to receive a control signal for the driving unit, and connect the N shift register units in one of a plurality of resolution modes under the control of the control signal.

公开(公告)号：US11410628B2

公开(公告)日：2022-08-09

申请号：US16325082

申请日：2018-05-04

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Liwei Liu ,  Yun Sik Im ,  Yoon Sung Um

IPC: G09G3/36

Abstract: A pixel voltage compensation method, a pixel voltage compensator device and a display device are provided. The compensation method includes: determining a capacitance between at least one data line adjacent to a target pixel electrode and the target pixel electrode; detecting a voltage difference between a driving voltage of the data line and a driving voltage of the target pixel electrode in a period from a start of present charging of the target pixel electrode to a start of next charging; calculating a variation of the driving voltage of the target pixel electrode caused by the capacitance and the voltage difference; and compensating for the driving voltage of the target pixel electrode according to the variation. This compensation method can suppress the phenomenon of voltage cross-talk, and thus can improve the display effect of the display device.