公开(公告)号：US20210200351A1

公开(公告)日：2021-07-01

申请号：US16078061

申请日：2017-12-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Shengji YANG ,  Xue DONG ,  Jing LV ,  Xiaochuan CHEN ,  Dongni LIU ,  Lei WANG ,  Pengcheng LU ,  Jie FU ,  Han YUE ,  Li XIAO

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/3266 ,  G09G3/36

Abstract: A shift register unit includes an input circuit, a first control circuit, a second control circuit, a third control circuit, a first output circuit, and a second output circuit. The first and second output circuits selectively transfer a first reference voltage from a first reference voltage terminal and a third reference voltage from a third reference voltage terminal to an output terminal of the shift register unit. This allows the shift register unit to output a desired output signal in an easy manner.

公开(公告)号：US20210028243A1

公开(公告)日：2021-01-28

申请号：US16611245

申请日：2019-02-26

Applicant: BOE Technology Group Co., Ltd.

Inventor： Shengji YANG ,  Xue DONG ,  Xiaochuan CHEN ,  Hui WANG ,  Pengcheng LU

IPC: H01L27/32 ,  H01L51/50 ,  H01L51/52 ,  H01L51/56

Abstract: A display panel, a method for fabricating the same, and a display device are provided. The display panel includes: a base substrate, and a plurality of pixels in an array on the base substrate, wherein each pixel includes a plurality of sub-pixels; each sub-pixel includes: a reflecting element on the base substrate, a first electrode on the reflecting element, a light-emitting element on the first electrode, and a second electrode on the light-emitting element; and in each of the pixels, micro-cavity lengths corresponding to the sub-pixels are different, wherein the micro-cavity length is the distance between the side of the reflecting element away from the base substrate and the side of the second electrode proximate to the base substrate.

公开(公告)号：US20200266351A1

公开(公告)日：2020-08-20

申请号：US16642676

申请日：2019-03-22

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Shengji YANG ,  Xue DONG ,  Xiaochuan CHEN ,  Hui WANG ,  Pengcheng LU

IPC: H01L51/00 ,  H01L51/56 ,  C23C14/04 ,  C23C14/24 ,  C23C14/54 ,  H04N5/225 ,  G06T7/70

Abstract: An alignment method, an alignment device and evaporation equipment are provided. The alignment device includes: a first alignment module, located outside an evaporation chamber and configured to determine relative position information between a substrate to be evaporated and a mask for evaporation; a second alignment module, located in the evaporation chamber and configured to adjust a position of the substrate to be evaporated and/or the mask for evaporation according to the relative position information until an orthographic projection of a first alignment mark of the substrate to be evaporated on the mask for evaporation at least partially overlaps a hollowed area of the mask for evaporation, obtain position information of the first alignment mark through the hollowed area, and adjust a position of the substrate to be evaporated and/or the mask for evaporation according to the position information.

公开(公告)号：US20200211477A1

公开(公告)日：2020-07-02

申请号：US16814119

申请日：2020-03-10

Applicant: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD. ,  BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Weilin LAI ,  Yucheng CHAN ,  Jianbang HUANG ,  Dachao LI ,  Shengji YANG ,  Pengcheng LU ,  Kuanta HUANG ,  Xiaochuan CHEN ,  Xue DONG ,  Hui WANG ,  Yanming WANG ,  Chen XU ,  Dacheng ZHANG ,  Yongfa DONG ,  Qing WANG ,  Hui TONG ,  Yunlong LI

IPC: G09G3/3291 ,  G09G3/3266 ,  G09G3/3258 ,  H01L27/32

Abstract: A display substrate and a driving method thereof are provided. The display substrate includes a base substrate containing a monocrystalline silicon layer, a thickness of the monocrystalline silicon layer being less than that of the base substrate; an array circuit layer, disposed on the base substrate and including a plurality of transistors, each of which has an active layer inside the monocrystalline silicon layer; and a plurality of light-emitting elements, located at a side of the array circuit layer away from the base substrate. The array circuit layer includes a scan driving circuit, a data driving circuit and a plurality of pixel sub-circuits, and the plurality of pixel sub-circuits are connected to the plurality of light-emitting elements, respectively, to form a plurality of sub-pixels.

公开(公告)号：US20200051503A1

公开(公告)日：2020-02-13

申请号：US16406870

申请日：2019-05-08

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Guohong QIN ,  Xiaochuan CHEN ,  Shengji YANG ,  Pengcheng LU ,  Rongrong SHI ,  Weihai WANG

IPC: G09G3/3258 ,  G09G3/3275

Abstract: A pixel circuit includes a data write-in circuit, a voltage amplification circuit, an energy storage circuit, a driving circuit and a light-emitting element. The driving circuit includes a control end, a first end and a second end. The voltage amplification circuit is connected to a data write-in node and the control end of the driving circuit, and configured to amplify a data voltage to acquire a driving voltage, and output the driving voltage to the control end of the driving circuit. The energy storage circuit is connected to the control end of the driving circuit. The first end of the driving circuit is connected to a power source voltage end, and the second end of the driving circuit is connected to an anode of the light-emitting element. The driving circuit is configured to control the power source voltage end to be electrically connected to, or electrically disconnected from, the anode of the light-emitting element under the control of the control end. A cathode of the light-emitting element is connected to a cathode voltage end.

公开(公告)号：US20200035158A1

公开(公告)日：2020-01-30

申请号：US15735793

申请日：2017-06-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Shengji YANG ,  Xue DONG ,  Jing LV ,  Xiaochuan CHEN ,  Dongni LIU ,  Pengcheng LU ,  Lei WANG ,  Jie FU ,  Han YUE ,  Li XIAO

IPC: G09G3/3258 ,  G09G3/3283 ,  H01L27/32

Abstract: A pixel driving circuit, a method for driving the same and a display device are provided. The pixel driving circuit includes a driving transistor, a reset control unit, a charging-discharging unit, a compensation control unit and a light-emission control unit, the reset control unit is connected to a reset control signal output end, an initial signal output end and a control node respectively, a gate electrode of the driving transistor is connected to the control node, the compensation control unit is connected to a compensation control signal output end, the light-emission control unit is connected to a high level output end, a main light-emission control line, a first electrode of the driving transistor, a second electrode of the driving transistor, N secondary light-emission control lines and N light-emission elements respectively.

公开(公告)号：US20190287455A1

公开(公告)日：2019-09-19

申请号：US16098235

申请日：2018-04-13

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Pengcheng LU ,  Xiaochuan CHEN ,  Minghua XUAN ,  Shengji YANG ,  Lei WANG ,  Li XIAO ,  Dongni LIU ,  Jie FU ,  Han YUE ,  Jian GAO ,  Changfeng LI

IPC: G09G3/3225 ,  G09G3/32

Abstract: A pixel circuit and a driving method thereof, display panel and a display device are disclosed. The pixel circuit includes an input control sub-circuit, a switch control sub-circuit, a latch sub-circuit and a light-emitting sub-circuit. The input control sub-circuit writes a data signal into a first node under control of the gate signal terminal. The switch control sub-circuit conducts a first terminal or a second terminal of the latch sub-circuit with the first node under control of a switch signal control terminal. The latch sub-circuit outputs a high-level signal to the first node, when the first node is conductive with the first terminal and outputs a low-level signal to the first node, when the first node is conductive with the second terminal. The light-emitting sub-circuit emits light when the first node is supplied with the high-level signal.

公开(公告)号：US20190197948A1

公开(公告)日：2019-06-27

申请号：US16329419

申请日：2018-05-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G09G3/3225 ,  G09G3/3275

CPC classification number: G09G3/3225 ,  G09G3/3208 ,  G09G3/3233 ,  G09G3/3275 ,  G09G2300/0842 ,  G09G2330/021

Abstract: A pixel circuit, a driving method thereof, and a display device are provided. A driving sub-circuit of the pixel circuit is configured to provide a data signal from the data signal terminal to the driving node under the control of a driving signal from the driving signal terminal. A holding sub-circuit of the pixel circuit is configured to acquire a potential of the driving node under the control of a first switching signal from the first switching signal terminal, and maintain the potential of the driving node unchanged under the control of a first power signal from the first power signal terminal and a second power signal from the second power signal terminal. A light emitting sub-circuit of the pixel circuit is connected to the driving node and is configured to emit light under the driving of the driving node.

公开(公告)号：US20190114457A1

公开(公告)日：2019-04-18

申请号：US15742102

申请日：2017-06-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Changfeng LI ,  Haisheng WANG ,  Yingming LIU ,  Rui XU ,  Pengpeng WANG ,  Pengcheng LU

IPC: G06K9/00 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1343

CPC classification number: G06K9/0004 ,  G02F1/13318 ,  G02F1/13338 ,  G02F1/133512 ,  G02F1/133528 ,  G02F1/1343 ,  G02F2001/133388

Abstract: A fingerprint identification display panel and a display device are disclosed. For the liquid crystal layer at the position corresponding to the first opening area corresponding to the photosensitive sensing unit in the light shielding layer, the initial direction of the long axis of the liquid crystal molecules is set to form an angle of 45 degrees with the transmission axis direction of the upper polarizer, and the liquid crystal layer at the position corresponding to the first opening area is controlled to form an equivalent quarter-wave plate.

公开(公告)号：US20190043422A1

公开(公告)日：2019-02-07

申请号：US15778047

申请日：2017-09-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Pengcheng LU ,  Xiaochuan CHEN ,  Shengji YANG ,  Lei WANG ,  Dongni LIU ,  Jie FU ,  Li XIAO ,  Han YUE ,  Jian GAO ,  Changfeng LI

IPC: G09G3/3233 ,  G09G3/3258 ,  G09G3/00 ,  G09G3/3291

Abstract: Embodiments of the present disclosure provide a protection circuit and method, a pixel circuit, and a display device. The protection circuit comprises a determination circuit, a first coupling circuit, a first terminal and a second terminal. The determination circuit is coupled to the first terminal and the first coupling circuit, and is configured to determine whether the voltage at the first terminal of the protection circuit belongs to one of a first predetermined range and a second predetermined range. The first coupling circuit is coupled to the first terminal, the second terminal and the determination circuit, and is configured to: couple the first terminal to the second terminal in response to the voltage at the first terminal belonging to the first predetermined range; and decouple the first terminal from the second terminal in response to the voltage at the first terminal belonging to the second predetermined range.