公开(公告)号：US20180083038A1

公开(公告)日：2018-03-22

申请号：US15521016

申请日：2016-10-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Hui LI ,  Yun Sik IM ,  Hyun Sic CHOI ,  Kuanjun PENG ,  Yu'e JIA ,  Hul ZHANG

IPC: H01L27/12 ,  G02F1/1362

CPC classification number: H01L27/124 ,  G02F1/134309 ,  G02F1/134363 ,  G02F1/136286 ,  G02F2001/134318 ,  G02F2001/134372

Abstract: An array substrate, a display panel and a display device are provided. The array substrate includes a base substrate, and, subpixels disposed on the base substrate. A first electrode and a second electrode are disposed in each of the subpixels; the first electrode includes first electrode strips; the second electrode includes second electrode strips. A distance between a projection of one second electrode strip and a projection of a first electrode strip adjacent to the second electrode strip in the first direction is S1; a distance between the projection of the second electrode strip and a projection of one first electrode strip adjacent to the second electrode strip in a direction opposite to the first direction is S2; a first domain includes a part in which S1 is greater than S2; and a second domain includes a part in which S1 is less than S2.

公开(公告)号：US20240412682A1

公开(公告)日：2024-12-12

申请号：US18273989

申请日：2022-07-07

Applicant: BOE Technology Group Co., Ltd.

Inventor： Weixing LIU ,  Kuanjun PENG ,  Bin QIN ,  Kai GUO ,  Tieshi WANG ,  Fangzhen ZHANG

IPC: G09G3/32 ,  H01L25/075 ,  H01L25/16 ,  H01L33/62

Abstract: A display substrate (910), comprising a plurality of pixel units (P11, P12, P21, P22) and at least one compensation circuit. At least one pixel unit (P11, P12, P21, P22) comprises: a main light-emitting unit and an auxiliary light-emitting unit; and the at least one compensation circuit is connected to the auxiliary light-emitting unit of the at least one pixel unit (P11, P12, P21, P22). The at least one compensation circuit is configured to measure the brightness or temperature of the at least one pixel unit (P11, P12, P21, P22) and control the auxiliary light-emitting unit of the at least one pixel unit (P11, P12, P21, P22) to emit light according to a measurement result.

公开(公告)号：US20240249660A1

公开(公告)日：2024-07-25

申请号：US18290792

申请日：2021-11-22

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

Inventor： Jinyu REN ,  Haisheng LIU ,  Kuanjun PENG ,  Fangzhen ZHANG ,  Jinqian WANG ,  Guojing MA ,  Dan WANG ,  Wei WANG ,  Sha FENG

IPC: G09G3/20 ,  G11C19/28

CPC classification number: G09G3/2092 ,  G09G2300/0842 ,  G09G2310/0286 ,  G11C19/28

Abstract: The present disclosure provides a shift register unit, a gate driver circuit, and a display device, belonging to the field of display technology, which can solve the problem of unstable threshold voltage and current leakage of thin film transistors in existing shift register units. The shift register unit in the present disclosure includes: an input subcircuit, an output subcircuit, a pull-down control subcircuit, a pull-down subcircuit, a first noise reduction subcircuit, a first auxiliary control subcircuit, and a second auxiliary control subcircuit. The first auxiliary control subcircuit is configured to write the third reference level signal to the pull-down control node when the pull-down node is the first reference level signal, and control the pull-down subcircuit to be closed to control the first noise reduction subcircuit to be open.

公开(公告)号：US20230274696A1

公开(公告)日：2023-08-31

申请号：US18014254

申请日：2021-11-22

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Weixing LIU ,  Kuanjun PENG ,  Bin QIN ,  Xue DONG ,  Fangzhen ZHANG ,  Wanpeng TENG ,  Tieshi WANG ,  Wanzhi CHEN ,  Kai GUO ,  Chunfang ZHANG

IPC: G09G3/3233 ,  H01L27/15 ,  H01L33/06 ,  H01L33/38

CPC classification number: G09G3/3233 ,  H01L27/156 ,  H01L33/06 ,  H01L33/38 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0262 ,  G09G2310/08 ,  G09G2300/0426 ,  G09G2320/0233

Abstract: A pixel driving circuit includes a data writing circuit, a light-emitting control circuit and a light-emitting diode chip. The data writing circuit is electrically connected to a first scanning signal terminal, a data signal terminal and a first node. The light-emitting control circuit is electrically connected to the first node, an enable signal terminal, a first voltage signal terminal and a second node, and is configured to transmit a first voltage signal received at the first voltage signal terminal to the second node. The light-emitting diode chip is electrically connected to the second node and a second voltage signal terminal. The light-emitting diode chip includes a plurality of light-emitting portions. The light-emitting diode chip is configured to drive the plurality of light-emitting portions to emit light in different periods of time respectively or drive at least two light-emitting portions to emit light in a same period of time.

公开(公告)号：US20210110759A1

公开(公告)日：2021-04-15

申请号：US16970818

申请日：2019-10-12

Applicant: BOE Technology Group Co,, Ltd.

Inventor： Wei QIN ,  Weixing LIU ,  Tieshi WANG ,  Kai GUO ,  Xiaolong LI ,  Kuanjun PENG ,  Zhiqiang XU ,  Wanpeng TENG

IPC: G09G3/32 ,  G09G3/20

Abstract: An embodiment of the present disclosure provides a driving circuit, a driving method thereof, a display panel and a display device. The driving circuit includes a first transistor electrically connected between a signal input terminal and a light emitting device to be driven, a duration control circuit configured to provide a signal of a duration data signal terminal to a gate of the first transistor in response to a signal of a duration scanning signal terminal, and a latch circuit electrically connected with the gate of the first transistor and configured to latch the signal of the gate of the first transistor.

公开(公告)号：US20200312892A1

公开(公告)日：2020-10-01

申请号：US15779694

申请日：2017-10-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Shuang SUN ,  Kuanjun PENG

IPC: H01L27/12

Abstract: A display substrate, a manufacturing method thereof, and a display device. The manufacturing method of a display substrate includes: providing a substrate; and forming, on the substrate, a first thin film transistor including a first active layer and a second thin film transistor including a second active layer. The second active layer includes a central area and doped regions located at two sides of the central area, respectively. Forming a first thin film transistor including a first active layer and a second thin film transistor including a second active layer on the substrate includes forming the first active layer and the doped regions of the second active layer using a single mask.

公开(公告)号：US20200090591A1

公开(公告)日：2020-03-19

申请号：US16616234

申请日：2019-04-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Tieshi WANG ,  Kuanjun PENG ,  Wei QIN ,  Chengchung YANG ,  Xueling GAO ,  Xiaolong LI ,  Zhiqiang XU ,  Yan WEI ,  Shengnan LI

IPC: G09G3/3258

Abstract: A pixel driving circuit, a driving method and a display device are provided. The pixel driving circuit includes a driving unit, a capacitor unit, a data write-in unit connected to a corresponding gate line, a corresponding data line and the driving unit, a power source control unit connected to a first light-emitting control end, a power source signal input end and the driving unit, and a first light-emitting control unit connected to a second light-emitting control end, the power source signal input end and the driving unit and configured to, within a predetermined time period of a light-emitting stage, control the power source signal input end to be electrically connected to the driving unit under the control of the second light-emitting control end, stop the operation of the driving unit, and enable the light-emitting unit not to emit light.

公开(公告)号：US20190385530A1

公开(公告)日：2019-12-19

申请号：US16332783

申请日：2018-04-10

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xueling GAO ,  Chengchung YANG ,  Kuanjun PENG ,  Wei QIN ,  Xiangxiang ZOU ,  Yang YANG

IPC: G09G3/3258

Abstract: Pixel circuit and display substrate and driving methods, and display apparatus are provided. Pixel circuit includes: driving resetting sub-circuit to input voltage at first initial voltage terminal to gate of driving transistor in driving sub-circuit under control of first resetting signal terminal; writing compensation sub-circuit to input data voltage to driving sub-circuit and compensate driving sub-circuit under control of scanning signal terminal in writing compensation phase, and input reference voltage output at data voltage terminal to driving sub-circuit in blanking phase, so driving transistor in On-Bias state; light-emitting resetting sub-circuit to input voltage at first initial voltage terminal to light-emitting device to reset light-emitting device under control of scanning signal terminal; and light-emitting enabling sub-circuit to provide voltage at first power supply voltage terminal to driving sub-circuit and connect driving sub-circuit to light-emitting device under control of enabling signal terminal; and driving sub-circuit to provide driving current to light-emitting device.

公开(公告)号：US20190088197A1

公开(公告)日：2019-03-21

申请号：US15997940

申请日：2018-06-05

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Kuanjun PENG ,  Xiangxiang ZOU

IPC: G09G3/3225 ,  H01L51/52 ,  H01L27/32

Abstract: The present disclosure provides an OLED light source, a display device and a method for fabricating the same. The OLED light source includes: light emitting units including anodes arranged in an array; metal wires for connecting the anodes, which are disposed between the light emitting units; an photosensitive sensor disposed on the metal wires, the metal wires being as a sense electrode of the photosensitive sensor; a drive electrode provided on the photosensitive sensor; and an opening disposed at a position where the metal wires correspond to the drive electrode, wherein the photosensitive sensor receives an external light signal through the opening.

公开(公告)号：US20180082651A1

公开(公告)日：2018-03-22

申请号：US15529777

申请日：2016-09-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yoon Sung UM ,  Yu'e JIA ,  Kuanjun PENG ,  Yun Sik IM

IPC: G09G3/36

CPC classification number: G09G3/3677 ,  G09G3/3614 ,  G09G3/3648 ,  G09G2300/0426 ,  G09G2300/0823 ,  G09G2310/08 ,  G09G2320/0247

Abstract: A display driving method, a display panel and a display device. In the display driving method, the voltage (Vgl) of a gate turning-off signal at least changes once during the period of applying the gate turning-off signal to each gate line (Gate 1, Gate 2, . . . ). A pixel voltage signal is varied as the gate turning-off signal changes. Thus, the variation frequency of the pixel voltage signal within the display time of each frame is increased by changing the gate turning-off signal within the display time of each frame, which is equivalent to increase the refreshing frequency, so that the human eyes cannot recognize flicker.