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.

公开(公告)号：US20220302173A1

公开(公告)日：2022-09-22

申请号：US17500748

申请日：2021-10-13

Applicant: BOE Technology Group Co., Ltd.

Inventor： Dongni LIU ,  Liang CHEN ,  Minghua XUAN ,  Haoliang ZHENG ,  Qi QI ,  Jing LIU

IPC: H01L27/12 ,  H01L25/16 ,  G09G3/32

Abstract: A driving backplane, a display panel and a display device are disclosed. The driving backplane includes: a base substrate; a plurality of pixel driving circuits located on the base substrate; an electrode located on a side of each of the pixel driving circuits facing away from the base substrate and coupled with the pixel driving circuits; and a potential wire located between the electrode and the base substrate and coupled with the pixel driving circuits. Every at least two pixel driving circuits are coupled with a same signal line through a multiplexing controller, an orthographic projection of the controller on the base substrate completely falls into a range of a corresponding micro light emitting diode bonding region, and an orthographic projection of a control wire coupled with the controller on the base substrate completely falls into a range of an orthographic projection of the potential wire on the base substrate.

公开(公告)号：US20220121072A1

公开(公告)日：2022-04-21

申请号：US17281709

申请日：2020-01-10

Applicant: BOE Technology Group Co., Ltd.

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

IPC: G02F1/1362 ,  H01L27/32

Abstract: The present disclosure discloses a display panel and a display device. The display panel includes: a base substrate, including a plurality of substrate via holes located in a display area of the display panel; and a plurality of driving signal lines and a plurality of bonding terminals, respectively located on different sides of the base substrate. At least one of the plurality of driving signal lines is electrically connected to at least one of the plurality of bonding terminals through the substrate via hole(s).

公开(公告)号：US20220101780A1

公开(公告)日：2022-03-31

申请号：US17424408

申请日：2020-09-10

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G09G3/32

Abstract: A pixel drive circuit includes a data write sub-circuit, an input and read sub-circuit, a drive sub-circuit, and a first output control sub-circuit. The data write sub-circuit is configured to transmit data signals input from a first data voltage terminal at different times to a first node. The input and read sub-circuit is configured to: transmit a signal of a signal transmission terminal to a second node in a write period, and transmit an electrical signal of the second node to the signal transmission terminal in a threshold voltage read period. The drive sub-circuit is configured to output a drive signal. The first output control sub-circuit is configured to: be coupled to an element to be driven, and transmit the drive signal output by the drive sub-circuit to the element to be driven.

公开(公告)号：US20210375203A1

公开(公告)日：2021-12-02

申请号：US16484983

申请日：2019-01-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Liang CHEN ,  Lei WANG ,  Dongni LIU ,  Li XIAO ,  Xiaochuan CHEN ,  Minghua XUAN ,  Shengji YANG ,  Pengcheng LU ,  Detao ZHAO ,  Ning CONG

IPC: G09G3/3233 ,  G09G3/20

Abstract: A display panel and a driving method thereof, and a display device are disclosed. The display panel includes a plurality of sub-pixel unit groups arranged in an array, the array includes a plurality of rows and a plurality of columns, each of the sub-pixel unit groups includes N sub-pixel units disposed along a column direction and a pixel driving circuit each of the N sub-pixel units includes a light-emitting circuit the pixel driving circuit is electrically connected to the light-emitting circuits of the N sub-pixel units, and the pixel driving circuit is configured to provide light-emitting driving currents to the light-emitting circuits of the N sub-pixel units.

公开(公告)号：US20210335215A1

公开(公告)日：2021-10-28

申请号：US16611742

申请日：2019-03-22

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Dongni LIU ,  Lei WANG ,  Minghua XUAN ,  Xiaochuan CHEN ,  Shengji YANG ,  Liang CHEN ,  Li XIAO ,  Zheng FANG ,  Detao ZHAO ,  Pengcheng LU

IPC: G09G3/32

Abstract: A display driving circuit includes N levels of display driving sub-circuits and N levels of switching sub-circuits. Each display driving sub-circuit is connected to a corresponding switching sub-circuit. An nth-level display driving sub-circuit includes an nth-level gate driving sub-circuit and an nth-level light-emitting control sub-circuit. An nth-level switching sub-circuit includes an nth-level gate driving switching sub-circuit and an nth-level light-emitting control switching sub-circuit. The nth-level gate driving switching sub-circuit is configured to enable an nth-level gate driving signal output end to be electrically connected to a (2n−1)th gate line or a 2nth gate line. The nth-level light-emitting control switching sub-circuit is configured to enable an nth-level light-emitting control signal output end to be electrically connected to a (2n−1)th light-emitting control line or a 2nth light-emitting control line, where N is an integer greater than 1, and n is a positive integer smaller than or equal to N.

公开(公告)号：US20210335213A1

公开(公告)日：2021-10-28

申请号：US16610007

申请日：2019-02-14

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G09G3/32

Abstract: An array substrate including a plurality of pixel units arranged in a matrix is provided. Each pixel unit at least includes a first sub-pixel, a second sub-pixel and a third sub-pixel that emit light of different colors, the first sub-pixel has a lower luminous efficiency than the second and third sub-pixels. The array substrate further comprises a plurality of first gate lines and a plurality of second gate lines that correspond to respective rows of pixel units of the plurality of pixel units. The first sub-pixel in each row of pixel units of the plurality of pixel units is coupled to a first gate line of the plurality of first gate lines, and the second sub-pixel and the third sub-pixel in the row of pixel units of the plurality of pixel units are both coupled to a second gate line of the plurality of second gate lines.

公开(公告)号：US20210210548A1

公开(公告)日：2021-07-08

申请号：US17212158

申请日：2021-03-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Ming YANG ,  Can ZHANG ,  Minghua XUAN ,  Liang CHEN ,  Xiaochuan CHEN ,  Wenqing ZHAO

IPC: H01L27/15 ,  H01L33/62 ,  G09G3/32 ,  H01L33/38

Abstract: An array substrate is provided, including a substrate, wherein the substrate is provided with a plurality of electrodes and a plurality of first signal lines, each of the electrodes being correspondingly connected with a first signal line. In some examples, the first signal lines extend in the same direction. In some examples, at least two of the plurality of first signal lines are located in different layers of an insulating spacer from each other. In some examples, orthographic projections on the substrate of at least two of the first signal lines in the different layers at least partially overlap. Accordingly, a light field display device comprising the array substrate is also provided. The array substrate can reduce a light-emitting point size and increase a density distribution of light-emitting points.

公开(公告)号：US20200286921A1

公开(公告)日：2020-09-10

申请号：US16701706

申请日：2019-12-03

Applicant: BOE Technology Group Co., Ltd.

Inventor： Dongni LIU ,  Minghua XUAN ,  Li XIAO ,  Detao ZHAO ,  Liang CHEN ,  Hao CHEN

IPC: H01L27/12 ,  H01L23/522 ,  H01L21/768 ,  H01L21/288

Abstract: An array substrate, a manufacturing method thereof and a display device are provided. A display unit is disposed on a first surface of a base substrate, and a driving circuit is disposed on a second surface of the base substrate opposite to the first surface, the driving circuit is electrically connected with the display unit through a signal connection structure in at least one via structure, a longitudinal section of the at least one via hole is a trapezoid, and a length of a bottom edge of the trapezoid at one side of the trapezoid close to the display unit is larger than a length of a bottom edge of the trapezoid at one side of the trapezoid away from the display unit.