公开(公告)号：US11315475B2

公开(公告)日：2022-04-26

申请号：US17417243

申请日：2020-10-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Minghua Xuan ,  Ning Cong ,  Dongni Liu ,  Can Zhang

IPC: G09G3/20 ,  G09G3/3233 ,  G09G3/3291

Abstract: A pixel driving circuit includes: current control sub-circuit outputting driving current in response to light emission control signal of the light emission control signal terminal; time control sub-circuit transmitting time modulation signal of the time modulation signal terminal to the third control terminal in response to time control signal of the time control signal terminal, and controlling time during which the driving current flows through the light emitting element; initial time control sub-circuit transmitting initial control signal of the initial control signal terminal to the output terminal of the initial time control sub-circuit in response to initial time control signal of the initial time control signal terminal. Time control sub-circuit controls the time during which the driving current flows through the light emitting element in response to time modulation signal transmitted to the third control terminal and initial control signal transmitted to the third control terminal.

公开(公告)号：US11276344B2

公开(公告)日：2022-03-15

申请号：US16484087

申请日：2018-11-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Minghua Xuan ,  Han Yue ,  Xiaochuan Chen ,  Ning Cong

IPC: G09G3/32

Abstract: The present application discloses a pixel circuit for a light-emitting diode display panel. The pixel circuit includes a reset sub-circuit configured to initialize voltage levels of some nodes. Additionally, the pixel circuit includes a data-input and compensation sub-circuit configured to load a data signal and adjust the voltage levels of the nodes for determining a driving current flown through a driving sub-circuit. The pixel circuit further includes a voltage-control sub-circuit for controlling a switch sub-circuit to determine whether the driving current is flowing or not. Moreover, the pixel circuit includes an emission-control sub-circuit configured to control a partial time span in one scan for passing the driving current to the light-emitting diode to drive light emission. The one scan is one of multiple different scans in one cycle time of displaying one frame of image.

公开(公告)号：US11195463B2

公开(公告)日：2021-12-07

申请号：US16839590

申请日：2020-04-03

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Han Yue ,  Minghua Xuan ,  Can Zhang ,  Can Wang ,  Ning Cong ,  Xiaochuan Chen

IPC: G09G3/325 ,  G09G3/3291 ,  G09G3/36

Abstract: A pixel driving circuit includes a current control circuit and a time control circuit, the current control circuit controls to generate a driving current, and outputs the driving current through a driving current output terminal, the time control circuit includes a first data writing-in circuit and a driving time control circuit. The first data writing-in circuit writes a first data voltage provided by a first data line to the driving time control circuit under the control of a first gate driving signal provided by a first gate line. The driving time control circuit is connected to a reference voltage terminal, the current control circuit, the first data writing-in circuit, and a light emitting element, and controls a light emitting time period of the light emitting element based on the reference voltage and the first data voltage, the reference voltage terminal is used to provide the reference voltage.

公开(公告)号：US11024680B2

公开(公告)日：2021-06-01

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: G06F3/044 ,  H01L27/32 ,  G06F3/041 ,  H01L51/00 ,  H01L51/52 ,  H01L51/56

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：US12274124B2

公开(公告)日：2025-04-08

申请号：US16973005

申请日：2020-03-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: H01L51/52 ,  H10K50/844 ,  H10K50/858 ,  H10K59/38

Abstract: The present disclosure provides a display assembly and a virtual reality display device. The display assembly includes an electroluminescent element, a packaging layer and a light converging layer arranged sequentially. The light converging layer is configured to converge light emitted by the electroluminescent element and transmitted through the packaging layer. The electroluminescent element includes a plurality of pixels, the light converging layer is tightly attached to the packaging layer, and an orthogonal projection of each pixels onto a surface of the packaging layer to which the light converging layer is tightly attached is completely covered by the light converging layer.

公开(公告)号：US20240297176A1

公开(公告)日：2024-09-05

申请号：US18026465

申请日：2022-06-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Can Zhang ,  Xinxin Zhao ,  Ning Cong ,  Minghua Xuan ,  Xiaochuan Chen

IPC: H01L27/12 ,  H01L25/075 ,  H01L25/16 ,  H01L33/38 ,  H01L33/62

CPC classification number: H01L27/124 ,  H01L25/0753 ,  H01L25/167 ,  H01L33/382 ,  H01L33/62 ,  H01L2933/0066

Abstract: An array baseplate and a preparation method thereof, and a display device. The array baseplate includes: a substrate; a drive unit disposed on one side of the substrate; and a light-emitting unit including at least one light-emitting subunit and disposed on a side of the substrate away from the drive unit, wherein the light-emitting unit is electrically connected to the drive unit through a wiring penetrating the substrate, and at least part area of each light-emitting subunit is in direct contact with the substrate. The light-emitting unit and the drive unit in the array baseplate are located on two sides of the substrate, and at least part area of the light-emitting subunit is in direct contact with the substrate.

公开(公告)号：US12039913B2

公开(公告)日：2024-07-16

申请号：US16475086

申请日：2019-01-07

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G09G3/32 ,  G09G3/20 ,  G09G3/3233

CPC classification number: G09G3/32 ,  G09G3/2018 ,  G09G3/2081 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0267 ,  G09G2310/061 ,  G09G2320/0242

Abstract: A pixel circuit includes a current control circuit, a time control circuit, and a light-emitting component, which are electrically coupled to one another in series along a common passage path of a driving current. The current control circuit is configured to control an intensity of the driving current according to a display data signal received thereby. The time control circuit is configured to control a passage time of the driving current according to a time data signal and a switch control signal received thereby. The light-emitting component is configured to emit a light according to the intensity and the passage time of the driving current.

公开(公告)号：US20230133470A1

公开(公告)日：2023-05-04

申请号：US18089154

申请日：2022-12-27

Applicant: BOE Technology Group Co., Ltd.

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

IPC: H10K50/818 ,  H10K59/30 ,  H10K50/816 ,  H10K71/00 ,  H10K50/852 ,  H10K50/856

Abstract: An electrode, a method of manufacturing the same, a light-emitting device, and a display device are provided, the electrode includes: a reflective layer; and two double-layer adjusting units stacked on the reflective layer, each including an insulating layer and a conductive layer sequentially arranged and directly contacted in a direction away from the reflective layer. For at least one unit, a via hole is provided in the insulating layer, an electrode lead formed integrally with the conductive layer is provided in the via hole, and electrically connected to the reflective layer through the electrode lead. In each unit, a difference between a thickness of the conductive layer and a thickness of the insulating layer does not exceed a set threshold configured to control the thickness of the insulating layer. The conductive layer farthest from the reflective layer locates on different levels in light-emitting regions of different types of light-emitting devices.

公开(公告)号：US11562693B2

公开(公告)日：2023-01-24

申请号：US17203241

申请日：2021-03-16

Applicant: Beijing BOE Display Technology Co., Ltd. ,  BOE Technology Group Co., Ltd.

Inventor： Ning Cong ,  Minghua Xuan ,  Can Zhang ,  Xiaochuan Chen ,  Lijun Yuan ,  Qi Qi

IPC: G09G3/3233

Abstract: A pixel driving circuit includes a current controlling module, an outputting module and a time length controlling module including a comparator, a first energy storage element, an offset voltage writing sub-circuit, and first and second output sub-circuits. First terminal of first energy storage element is connected with first input terminal of comparator and second terminal with the first output sub-circuit. The second output sub-circuit is connected with second input terminal of comparator. The offset voltage writing sub-circuit writes an offset voltage of comparator to the first energy storage element. One of the first and second output sub-circuits outputs time signal and the other outputs reference voltage signal. The comparator outputs comparison signal according to the time signal and the reference voltage signal. The current controlling module outputs current signal. The outputting module turns on responsive to the comparison signal and controls current of light-emitting unit according to the current signal.

公开(公告)号：US11386846B2

公开(公告)日：2022-07-12

申请号：US17294231

申请日：2020-09-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Dongni Liu ,  Minghua Xuan ,  Xiaochuan Chen ,  Xue Dong ,  Haoliang Zheng ,  Han Yue ,  Ning Cong

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3291

Abstract: A pixel driving circuit includes a data writing sub-circuit, a driving sub-circuit, and a control sub-circuit. The data writing sub-circuit is configured to: in response to a first scanning signal and a third scanning signal, write a first data signal into the driving sub-circuit; and in response to a second scanning signal and the third scanning signal, write a second data signal into the driving sub-circuit. The control sub-circuit is configured to, in response to an enable signal, connect a driving transistor to a first power supply voltage signal terminal and an element to be driven. The driving sub-circuit is configured to: according to the first data signal and a first power supply voltage signal, output a driving signal; and according to the second data signal and the first power supply voltage signal, control an operating state of the element to be driven.