公开(公告)号：US20220215793A1

公开(公告)日：2022-07-07

申请号：US17509899

申请日：2021-10-25

Applicant: BOE Technology Group Co., Ltd.

Inventor： Seungwoo HAN ,  Haoliang ZHENG ,  Dongni LIU ,  Li XIAO ,  Liang CHEN ,  Hao CHEN ,  Jiao ZHAO ,  Jin YANG ,  Minghua XUAN

IPC: G09G3/32

Abstract: The present disclosure provides a display apparatus, a pixel circuit and a method of driving a pixel circuit. In one or more embodiments, the pixel circuit includes a driving transistor, a data signal module and a bias signal module. A first electrode of the driving transistor is connected with a first power signal terminal, a second electrode of the driving transistor is connected with a first terminal of a light emitting element, and the driving transistor includes a first control electrode and a second control electrode. The data signal module is connected with the driving transistor, a data writing signal terminal and a data signal terminal. The bias signal module is connected with the driving transistor, a bias writing signal terminal and a bias signal terminal, and is configured to adjust a threshold voltage of the driving transistor under control of the bias writing signal terminal and the bias signal terminal.

公开(公告)号：US20220130331A1

公开(公告)日：2022-04-28

申请号：US17407147

申请日：2021-08-19

Applicant: BOE Technology Group Co., Ltd.

Inventor： Dongni LIU ,  Minghua XUAN ,  Li XIAO ,  Haoliang ZHENG ,  Liang CHEN ,  Jiao ZHAO ,  Seungwoo HAN ,  Hao CHEN

IPC: G09G3/3233 ,  G09G3/3291

Abstract: A pixel circuit, a driving method thereof and a light emitting device, and relates to the technical field of display. The pixel circuit comprises driving sub-circuit comprising a control terminal, first terminal and a second terminal, driving sub-circuit being configured to control driving signal flowing through the first terminal and second terminal according to signal of control terminal; first capacitor comprising first pole and second pole coupled to control terminal of driving sub-circuit; first data writing sub-circuit configured to write first initialization signal to first pole of first capacitor in response to first scanning signal, write first data signal into driving sub-circuit in response to first scanning signal, so that signal of control signal of driving sub-circuit changes with first data signal; second data writing sub-circuit configured to write second data signal to first pole of first capacitor in response to second scanning signal.

公开(公告)号：US20210217353A1

公开(公告)日：2021-07-15

申请号：US16976858

申请日：2019-11-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jiao ZHAO ,  Li XIAO ,  Minghua XUAN ,  Haoliang ZHENG ,  Dongni LIU ,  Jing LIU ,  Qi QI ,  Zhenyu ZHANG ,  Liang CHEN ,  Hao CHEN ,  Lijun YUAN

IPC: G09G3/32 ,  G11C19/28 ,  H01L25/075 ,  H01L27/02 ,  H01L27/12 ,  H01L33/62

Abstract: An array substrate has a display area, and the array substrate includes at least one pixel group and at least one pixel circuit group. The at least one pixel group is disposed in the display area, and each pixel group includes a plurality of pixels arranged in an array. Each pixel circuit group is disposed between two adjacent rows of pixels or two adjacent columns of pixels in a corresponding pixel group.

公开(公告)号：US20210098501A1

公开(公告)日：2021-04-01

申请号：US16465292

申请日：2018-11-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Dongni LIU ,  Can WANG ,  Minghua XUAN ,  Lei WANG ,  Li XIAO ,  Liang CHEN ,  Shengji YANG ,  Pengcheng LU ,  Xiaochuan CHEN

IPC: H01L27/12

Abstract: A display substrate includes a first substrate, a first sub-pixel layer and a second sub-pixel layer positioned on the first substrate; the first sub-pixel layer includes a plurality of first sub-pixels, the second sub-pixel layer includes a plurality of second sub-pixels, and a first orthographic projection of the first sub-pixel on the first substrate does not overlap with a second orthographic projection of the second sub-pixel on the first substrate. A display panel, a display device and a method for manufacturing the display substrate are also disclosed.

公开(公告)号：US20200066805A1

公开(公告)日：2020-02-27

申请号：US16489789

申请日：2019-03-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Ming YANG ,  Minghua XUAN ,  Ning CONG ,  Han YUE ,  Can ZHANG ,  Can WANG ,  Xiaochuan CHEN ,  Shengji YANG ,  Liang CHEN

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/56 ,  H01L51/00 ,  G06F3/041

Abstract: The present disclosure relates to a display panel and a method of fabricating the same. An organic light emitting diode (OLED) display panel, comprising: a plurality of touch electrodes configured to sense a touch; touch electrode leads electrically connected to the plurality of touch electrodes; and OLED devices each comprising a cathode and a functional layer having a via-hole; wherein, the plurality of touch electrodes function as cathodes of the OLED devices, and are electrically connected to the touch electrode leads through the via-holes.

公开(公告)号：US20200025820A1

公开(公告)日：2020-01-23

申请号：US16391833

申请日：2019-04-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Detao ZHAO ,  Liang CHEN ,  Li XIAO ,  Dongni LIU ,  Lei WANG ,  Minghua XUAN ,  Xiaochuan CHEN

IPC: G01R31/28 ,  H01L27/32 ,  G09G3/20 ,  G09G3/3225

Abstract: The present disclosure provides a display device and a detection method for the display device. The display device includes a display area and a non-display area. The display device comprises: a pixel array at the display area, a plurality of switching transistors at the non-display area, and at least one detection line at the non-display area. The pixel array includes a plurality of sub-pixels. The plurality of switching transistors are electrically connected to a plurality of columns of sub-pixels of the pixel array in one-to-one correspondence. Each of the at least one detection line is electrically connected to a part of the plurality of switching transistors.

公开(公告)号：US20230351944A1

公开(公告)日：2023-11-02

申请号：US17639790

申请日：2021-03-11

Applicant: BOE Technology Group Co., Ltd.

Inventor： Seungwoo HAN ,  Li XIAO ,  Haoliang ZHENG ,  Dongni LIU ,  Jiao ZHAO ,  Liang CHEN ,  Hao CHEN ,  Minghua XUAN

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/061 ,  G09G2300/0842

Abstract: Provided are a pixel circuit and a method for driving the same, a display panel and a display device. A drive circuit (04) in the pixel circuit is capable of controlling conduction/non-conduction between a second node (N2) and a third node (N3) under the control of a potential of a first node (N1). A light-emission control circuit (03) in the pixel circuit is capable of controlling conduction/non-conduction between a cathode of a light-emitting element and a second node (N2), and controlling conduction/non-conduction between the third node (N3) and a pull-down power terminal (LVSS) under the control of a potential of a light-emission control signal; and a potential of the first node (N1) is not be affected by a potential of an anode of the light-emitting element. Furthermore, in the case that the cathode of the light-emitting element and the second node (N2) are conducted, the second node (N2) and the third node (N3) are conducted, and the third node and the pull-down power terminal (LVSS) are conducted, the light-emitting element can emit light reliably.

公开(公告)号：US20230260461A1

公开(公告)日：2023-08-17

申请号：US18308385

申请日：2023-04-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Li XIAO ,  Haoliang ZHENG ,  Hao CHEN ,  Minghua XUAN ,  Dongni LIU ,  Seungwoo HAN ,  Liang CHEN ,  Jiao ZHAO ,  Xue DONG

IPC: G09G3/3258 ,  G09G3/3291

CPC classification number: G09G3/3258 ,  G09G3/3291

Abstract: A pixel circuit includes a driving circuit, a first control circuit and a second control circuit. The driving circuit is configured to receive a data signal in response to a scan signal, and generate, in response to a first enable signal, a driving signal according to a first voltage and the data signal. The first control circuit is configured to: receive a first input signal in response to a first control signal, and transmit a third input signal in response to the first input signal; and receive a second input signal in response to a second control signal, and transmit a second enable signal in response to the second input signal. The second control circuit is configured to transmit the driving signal to an element to be driven in response to one of the third input signal and the second enable signal.

公开(公告)号：US20230032018A1

公开(公告)日：2023-02-02

申请号：US17789661

申请日：2021-08-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhenyu ZHANG ,  Li XIAO ,  Dongni LIU ,  Liang CHEN ,  Hao CHEN ,  Haoliang ZHENG ,  Minghua XUAN ,  Jiao ZHAO

IPC: G09G3/3258

Abstract: Provided are a photoelectric detection circuit and a driving method thereof, a display apparatus and a manufacturing method thereof. The photoelectric detection circuit includes: a first reset sub-circuit, a second reset sub-circuit, a first storage sub-circuit, a data read sub-circuit and a photosensitive device. A first terminal of the data read sub-circuit, a first terminal of the first storage sub-circuit, a first electrode of the photosensitive device and a first terminal of the first reset sub-circuit are connected to a first node. A second electrode of the photosensitive device is connected to a common voltage line. The data read sub-circuit is configured to transmit a voltage of the first node to a data read line in response to a signal of a scan line. The first reset sub-circuit is configured to reset the voltage of the first node.

公开(公告)号：US20220373900A1

公开(公告)日：2022-11-24

申请号：US16966874

申请日：2019-11-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Li XIAO ,  Jiao ZHAO ,  Dongni LIU ,  Minghua XUAN ,  Haoliang ZHENG ,  Liang CHEN ,  Hao CHEN ,  Zhenyu ZHANG ,  Jing LIU ,  Qi QI

IPC: G03F9/00 ,  G03F1/42

Abstract: An alignment mark includes a first alignment marker located on a first surface of a substrate and a second alignment marker located on a second surface of the substrate. The second alignment marker is arranged to be matched with the first alignment marker, and capable of representing a process variation between the second alignment marker and the first alignment marker.