公开(公告)号：US20210167155A1

公开(公告)日：2021-06-03

申请号：US16063774

申请日：2017-12-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Pan XU ,  Yongqian LI ,  Zhidong YUAN ,  Zhenfei CAI ,  Can YUAN ,  Meng LI

IPC: H01L27/32 ,  H01L29/786 ,  H01L51/52 ,  H01L29/40

Abstract: A thin-film transistor includes a substrate, and a light-shielding layer and an active layer sequentially over the substrate. The light-shielding layer has an accommodating space having a bottom wall and a side wall on an upper surface thereof. An orthographic projection of the active layer on the substrate is contained within an orthographic projection of the accommodating space of the light-shielding layer on the substrate. An upper side of the side wall of the accommodating space of the light-shielding layer has a larger distance to the substrate than a bottom surface, and optionally has an equal or larger distance to the substrate than a top surface, of the active layer. The light-shielding layer can comprise a gate electrode. As such, lights from an underneath and from a lateral side of the thin-film transistor that otherwise reach the active layer can be partially or completely blocked.

公开(公告)号：US20210083137A1

公开(公告)日：2021-03-18

申请号：US16633372

申请日：2019-07-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Ling WANG ,  Yicheng LIN ,  Cuili GAI ,  Pan XU ,  Guoying WANG

IPC: H01L31/103 ,  H01L31/0224 ,  H01L31/18 ,  H01L27/146

Abstract: The present disclosure provides an optoelectronic sensor and a manufacturing method thereof, and an optoelectronic device and a manufacturing method thereof. The optoelectronic sensor includes a first electrode, a first semiconductor layer, a second semiconductor layer and a second electrode arranged in a stack, wherein each of the first semiconductor layer and the second semiconductor layer is a metal oxide semiconductor layer, the first electrode is a transparent electrode and has a work function greater than that of the first semiconductor layer; and the first semiconductor layer has a conductivity smaller than that of the second semiconductor layer, and has a work function greater than that of the second semiconductor layer.

公开(公告)号：US20200294449A1

公开(公告)日：2020-09-17

申请号：US16648522

申请日：2019-03-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Ling WANG ,  Pan XU ,  Yi Cheng LIN ,  Xing ZHANG ,  Ying HAN ,  Guang YAN

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

Abstract: Disclosed are a pixel array substrate and a driving method thereof, a display panel, and a display device. The pixel array substrate includes a plurality of pixel units arranged in a plurality of pixel rows, and common electrodes distributed in the plurality of pixel rows. Each of the plurality of pixel units includes a light emitting element, first electrodes of light emitting elements of a plurality of pixel units in each of the plurality of pixel rows are electrically connected with each other to form a common electrode in the each of the plurality of pixel rows, and the common electrodes in the plurality of pixel rows are insulated from each other.

公开(公告)号：US20200176604A1

公开(公告)日：2020-06-04

申请号：US16620663

申请日：2018-06-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Pan XU ,  Yicheng LIN ,  Cuili GAI ,  Baoxia ZHANG ,  Quanhu LI ,  Ling WANG

IPC: H01L29/786 ,  H01L27/12 ,  H01L29/417 ,  H01L29/66

Abstract: The present disclosure provides a thin film transistor, a method of fabricating the same, an array substrate and a display device. The thin film transistor includes: source and drain electrodes in a same layer arranged on a base substrate; an active layer on the base substrate and in contact with the source and drain electrodes; a gate insulating layer at a side of the active layer away from the base substrate; a gate electrode at a side of the gate insulating layer away from the base substrate. Orthographic projections of the gate electrode, the source electrode and the drain electrode on the base substrate do not overlap with one another, and a region of the active layer not covered by the gate electrode, the source electrode and the drain electrode and at a side of the active layer away from the base substrate is subjected to conductorization.

公开(公告)号：US20190228696A1

公开(公告)日：2019-07-25

申请号：US15579432

申请日：2017-06-02

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yongqian LI ,  Pan XU ,  Quanhu LI

IPC: G09G3/20 ,  G09G3/22

Abstract: A pixel driving circuit and a driving method thereof, an array substrate and a display device are provided. The pixel driving circuit includes: a color data write unit, a luminance control unit, and a graphene light-emitting device. The graphene light-emitting device can emit light under the control of a color data signal and a luminance control signal. The driving method of a pixel driving circuit is conducted to drive the pixel driving circuit.

公开(公告)号：US20190189056A1

公开(公告)日：2019-06-20

申请号：US16118192

申请日：2018-08-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Cuili Gai ,  Baoxia Zhang ,  Ling Wang ,  Pan XU ,  Yicheng Lin

IPC: G09G3/3258

Abstract: The present disclosure relates to a display device, a display substrate, a method and a device for display compensation. The method includes: before displaying an image, performing initial compensation on each of the pixel circuits to obtain an average reference voltage of the plurality of pixel circuits; controlling the display substrate to display an image and performing external compensation on each of the pixel circuits during a display duration of one frame of the image, obtaining a charging voltage on the sensing line of each of the pixel circuits during the external compensation, obtaining a first reference voltage of each of the pixel circuits according to the charging voltage on the sensing line and the average reference voltage, and performing internal compensation on each of the pixel circuits according to the first reference voltage.

公开(公告)号：US20180247577A1

公开(公告)日：2018-08-30

申请号：US15720038

申请日：2017-09-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Dongxu HAN ,  Tieshi WANG ,  Pan XU ,  Wenchao BAO ,  Chi ZHANG ,  Zhongyuan WU

IPC: G09G3/00 ,  G09G3/30

CPC classification number: G09G3/006 ,  G09G3/30 ,  G09G2320/0673 ,  G09G2320/0693 ,  G09G2360/145

Abstract: A gamma voltage debugging method for an electroluminescent display device, including: turning on sub-pixels in a test region to a maximum luminance value, and recording a driving current of an electroluminescent element at this time as a maximum reference current; calculating reference current values corresponding to respective gray scales according to the maximum reference current and a preset formula; and driving the sub-pixels in the test region to emit light, and for each driving current equal to a reference current value, recording a driving voltage value corresponding to the gray scale value as a gamma voltage resulted from the debugging.

公开(公告)号：US20180233498A1

公开(公告)日：2018-08-16

申请号：US15509714

申请日：2016-09-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD

Inventor： Pan XU ,  Yongqian LI ,  Quanhu LI

IPC: H01L27/02 ,  G02F1/1362 ,  H01L29/788 ,  H01L27/12

CPC classification number: H01L27/0292 ,  G02F1/136204 ,  G02F1/136286 ,  G02F2201/121 ,  H01L27/0288 ,  H01L27/124 ,  H01L29/788

Abstract: The present disclosure provides a substrate, including: a first line; a second line; a thin-film transistor (TFT) between the first line and the second line, having a floating gate structure, a source electrode electrically connected to the first line, and a drain electrode electrically connected to the second line; and a first point-discharge structure between the floating gate structure of the TFT and the first line.

公开(公告)号：US20170018229A1

公开(公告)日：2017-01-19

申请号：US15168886

申请日：2016-05-31

Applicant: BOE TECHNOLOGY GROUP CO., LTD. ,  HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.

Inventor： Yuting ZHANG ,  Feng LIAO ,  Zhongyuan WU ,  Pan XU

IPC: G09G3/3258 ,  G09G3/3266

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2300/0866

Abstract: The present invention provides a pixel driving circuit, a driving method thereof, and a display device. The pixel driving circuit of the present invention comprises a data writing unit, a threshold compensation unit, a driving unit, a light-emitting unit, and a voltage stabilizing unit; the data writing unit is connected with a first node, a scan signal line and a data signal line; the first node is a connection node between the data writing unit and the driving unit; the threshold compensation unit is connected with the first node, a first control signal line, a first voltage terminal and the driving unit; the driving unit is connected with the light-emitting unit; and the voltage stabilizing unit is connected with the data writing unit, a second control signal line and the first voltage terminal.

Abstract translation: 本发明提供一种像素驱动电路及其驱动方法和显示装置。 本发明的像素驱动电路包括数据写入单元，阈值补偿单元，驱动单元，发光单元和稳压单元; 数据写入单元与第一节点，扫描信号线和数据信号线连接; 第一节点是数据写入单元和驱动单元之间的连接节点; 阈值补偿单元与第一节点，第一控制信号线，第一电压端子和驱动单元连接; 所述驱动单元与所述发光单元连接; 并且电压稳定单元与数据写入单元，第二控制信号线和第一电压端连接。