公开(公告)号：US11468825B2

公开(公告)日：2022-10-11

申请号：US17265325

申请日：2020-03-17

Applicant: BOE Technology Group Co., Ltd.

Inventor： Minghua Xuan ,  Qi Qi ,  Jing Liu ,  Han Yue ,  Dongni Liu

IPC: G09G3/32

Abstract: The present disclosure provides a pixel circuit including: a current control circuit and a time control circuit, the time control circuit includes: a first resetting sub-circuit configured to write a reference voltage and a first initialization voltage to a first node and a second node, respectively; a first data writing sub-circuit configured to write a first data voltage to the first node; a first threshold compensation sub-circuit configured to perform threshold compensation on a transistor within a switch sub-circuit; a ramp writing sub-circuit configured to write a preset ramp signal to the first node; and the switch sub-circuit configured to control electrical coupling and decoupling between a third node and a fourth node. The present disclosure further provides a driving method of the pixel circuit and a display device.

公开(公告)号：US20220319379A1

公开(公告)日：2022-10-06

申请号：US17843951

申请日：2022-06-17

Applicant: BOE Technology Group Co., Ltd.

Inventor： Minghua Xuan ,  Xiaochuan Chen ,  Han Yue

IPC: G09G3/20 ,  G09G3/3233

Abstract: A pixel driving circuit for generating a pixel luminance with multiple grayscale levels is provided. The pixel driving circuit includes a data input sub-circuit configured to input data signal once in a respective scan of n scans in one cycle time for displaying one frame of image; a latch sub-circuit configured to latch a first voltage level in-phase with the data signal at the first node and a second voltage level out-of-phase with the data signal at a second node; a data output sub-circuit configured to output a drive signal at a low voltage level under control of the first voltage level or at a high voltage level under control of the second voltage level; and an emission-control sub-circuit configured to pass the drive signal to drive a light-emitting device in one partial time section of the respective scan of n scans.

公开(公告)号：US11417272B2

公开(公告)日：2022-08-16

申请号：US16763219

申请日：2019-11-01

Applicant: BOE Technology Group Co., Ltd.

Inventor： Ming Yang ,  Ning Cong ,  Han Yue ,  Can Zhang ,  Can Wang ,  Jiao Zhao ,  Angran Zhang ,  Minghua Xuan ,  Xiaochuan Chen

IPC: G09G3/3233 ,  G09G3/00 ,  G09G3/3291

Abstract: A pixel circuit and driving method are provided. The pixel circuit includes a light emitting device having a first terminal and a second terminal; a driving circuit, electrically connected to the first terminal of the light emitting device, for providing power to the light emitting device; a voltage comparator for generating a pulse width modulated signal having a duty cycle based on a data voltage and a reference voltage; an offset voltage detecting circuit, electrically connected to an output terminal of the voltage comparator, for detecting an input offset voltage of the voltage comparator; and a data voltage compensation circuit, electrically connected to the offset voltage detecting circuit, for compensating the data voltage according to the input offset voltage detected.

公开(公告)号：US11323681B2

公开(公告)日：2022-05-03

申请号：US15778375

申请日：2017-09-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Pengcheng Lu ,  Xiaochuan Chen ,  Shengji Yang ,  Lei Wang ,  Wenqing Zhao ,  Dongni Liu ,  Jie Fu ,  Han Yue ,  Li Xiao ,  Jian Gao ,  Haisheng Wang ,  Changfeng Li

IPC: H04N13/117 ,  H04N13/322 ,  H04N13/383 ,  H04N13/31 ,  G09G3/36

Abstract: The present disclosure provides a 3D display device and a working method of the same, the 3D display device includes a display panel, a lens unit, an acquiring component and an adjusting component, the acquiring component is configured to acquire current positions of eyes of a viewer, and the adjusting component is configured to adjust a signal for driving the display panel according to the current positions so that display information of the display panel received by the eyes of the viewer at the current positions is the same as display information of the display panel received by the eyes of the viewer at preset positions.

公开(公告)号：US11315479B2

公开(公告)日：2022-04-26

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：US11302245B2

公开(公告)日：2022-04-12

申请号：US16894902

申请日：2020-06-08

Applicant: BOE Technology Group Co., Ltd.

Inventor： Minghua Xuan ,  Xiaochuan Chen ,  Han Yue ,  Ning Cong ,  Dongni Liu ,  Qi Qi ,  Jing Liu

IPC: G09G3/30 ,  G09G3/32

Abstract: Provided are a pixel circuit, a driving method thereof and a display device. The pixel circuit includes a first charging sub-circuit, a second charging sub-circuit, a first storage sub-circuit, a first switching sub-circuit, a second switching sub-circuit and a light emitting sub-circuit. The first charging sub-circuit is configured to provide a signal of a first data signal terminal to a first node under control of a scanning signal terminal, and after providing the signal of the first data signal terminal, provide a signal of a second data signal terminal to the first node under control of a light emitting control terminal.

公开(公告)号：US11283052B2

公开(公告)日：2022-03-22

申请号：US16326463

申请日：2018-02-12

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Can Wang ,  Xiaochuan Chen ,  Minghua Xuan ,  Can Zhang ,  Ming Yang ,  Han Yue

IPC: H01L29/08 ,  H01L51/52 ,  H01L51/56 ,  H01L27/32

Abstract: A display panel and a method for manufacturing the display panel are provided. The display substrate includes a plurality of sub-pixels; an anti-reflection layer provided on a light-exiting side of the display panel at positions respectively corresponding to the sub-pixels; a dielectric layer provided between the sub-pixels and the anti-reflection layer; the anti-reflection layer has a thickness enabling a first light and a second light to be not in-phase; the first light is a portion of ambient light reflected by a surface of the anti-reflection layer away from the sub-pixel; the second light is a portion of the ambient light sequentially refracted by and passing through the surface of the anti-reflection layer away from the sub-pixel, entering the anti-reflection layer, reflected by an interface between the anti-reflection layer and the dielectric layer, refracted by the surface of the anti-reflection layer away from the sub-pixel and entering environment.

公开(公告)号：US11271065B2

公开(公告)日：2022-03-08

申请号：US16512924

申请日：2019-07-16

Applicant: BOE Technology Group Co., Ltd.

Inventor： Ming Yang ,  Minghua Xuan ,  Can Zhang ,  Can Wang ,  Han Yue ,  Ning Cong ,  Jiayao Liu

IPC: G09G3/3233 ,  H01L27/32 ,  H01L27/24 ,  H01L51/52 ,  G09G3/3208

Abstract: The embodiments of the present application provide a display substrate, a light field display apparatus, and a method for driving the same. The display substrate includes: a base substrate; a light emitting block on the base substrate, wherein the light emitting block comprises a plurality of first light emitting units, and each of the first light emitting units comprises a plurality of first light emitting points which are located at a plurality of predetermined positions in the first light emitting unit respectively; and first driving leads each electrically connected to first light emitting points located at the same predetermined positions in the respective first light emitting units and configured to receive a first driving signal from a driving circuit.

公开(公告)号：US11239214B2

公开(公告)日：2022-02-01

申请号：US16585310

申请日：2019-09-27

Applicant: BOE Technology Group Co., Ltd.

Inventor： Minghua Xuan ,  Xiaochuan Chen ,  Dongni Liu ,  Han Yue

IPC: H01L25/075 ,  H01L33/62 ,  H01L27/12

Abstract: The present disclosure provides a display panel and a manufacturing method thereof, a display device. The display panel includes: a substrate; a plurality of driving electrodes and a micro light emitting diode located on a surface of the substrate, wherein respective electrodes of the micro light emitting diode are located at a side of the micro light emitting diode facing away from the substrate; and a plurality of driving wires respectively electrically coupling the respective electrodes of the micro light emitting diode to the plurality of driving electrodes.

公开(公告)号：US20210366347A1

公开(公告)日：2021-11-25

申请号：US16606252

申请日：2018-10-23

Applicant: BOE Technology Group Co., Ltd.

Inventor： Minghua Xuan ,  Xiaochuan Chen ,  Han Yue

IPC: G09G3/20 ,  G09G3/3233

Abstract: The present application discloses a pixel driving circuit for generating a pixel luminance with multiple grayscale levels. The circuit includes a data input sub-circuit configured to input data signal once in each of multiple scans in one cycle time for displaying one frame of image. The circuit further includes a latch sub-circuit configured to latch a first voltage level in-phase with the data signal at the first node and a second voltage level out-of-phase with the data signal at a second node. Additionally, the circuit includes a data output sub-circuit configured to output a drive signal at a low voltage level under control of the first voltage level or at a high voltage level under control of the second voltage level. Furthermore, the circuit includes an emission-control sub-circuit configured to pass the drive signal to drive a light-emitting device in one partial time section of each of the multiple scans.