公开(公告)号：US11127350B2

公开(公告)日：2021-09-21

申请号：US16071667

申请日：2017-08-02

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Cuili Gai ,  Zhongyuan Wu ,  Baoxia Zhang ,  Ling Wang ,  Yicheng Lin ,  Quanhu Li ,  Fang Liu

IPC: G06F3/038 ,  G09G5/00 ,  G09G3/3258 ,  G09G3/3233 ,  G09G3/3291

Abstract: A pixel circuit includes a first transistor having a bottom gate and a top gate, a drain supplied with a high-level power-supply voltage, and a source coupled to a light-emitting diode (LED). The bottom gate is provided with a first voltage signal and the source is provided with a second voltage signal in a compensation period during which a present value of a threshold voltage of the first transistor is sensed at the source and a third voltage signal is determined based on the present value of the threshold voltage. The top gate is configured to be provided with the third voltage signal in an emission period to reduce the present value of the threshold voltage.

公开(公告)号：US10978524B2

公开(公告)日：2021-04-13

申请号：US16308537

申请日：2018-05-22

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Cuili Gai ,  Yi Cheng Lin ,  Pan Xu ,  Baoxia Zhang ,  Quanhu Li ,  Ling Wang

IPC: H01L27/32 ,  H01L21/56 ,  H01L51/52 ,  H01L51/56

Abstract: An electroluminescent display substrate and a manufacturing method thereof, a display panel and a display apparatus are disclosed. The electroluminescent display substrate includes: a base substrate including a display area and a peripheral area surrounding the display area, wherein at least one OLED device is in the display area; a pixel defining layer in the display area and the peripheral area; at least one groove in the pixel defining layer in the peripheral area; wherein the at least one OLED device has a first electrode, the first electrode is on a side of the pixel defining layer away from the base substrate and extends to cover the groove.

公开(公告)号：US10937351B2

公开(公告)日：2021-03-02

申请号：US15774175

申请日：2017-10-13

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Song Meng ,  Quanhu Li

IPC: G09G5/10 ,  G09G3/20 ,  G09G3/00

Abstract: A Gamma-curve correction method for a display apparatus, and a display apparatus. The method includes: determining a standard Gamma curve according to the display apparatus; selecting a plurality of test gray scale values on the standard Gamma curve, and acquiring a plurality of target brightness values corresponding to the plurality of test gray scale values; adjusting an input gray scale value of the display apparatus to obtain a plurality of test-correction gray scale values, where the test-correction gray scale values are corresponding input gray scale values when display brightness of the display apparatus is equal to respective target brightness; generating an association relationship between input gray scale values and correction gray scale values, according to the plurality of test gray scale values and the plurality of test-correction gray scale values; and adjusting the input gray scale value to a corresponding correction gray scale value, according to the association relationship.

公开(公告)号：US10798372B2

公开(公告)日：2020-10-06

申请号：US16097815

申请日：2018-02-12

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Quanhu Li ,  Yicheng Lin ,  Yu Wang ,  Yue Wu ,  Song Meng ,  Yongqian Li ,  Pan Xu

IPC: G09G5/00 ,  H04N13/398 ,  H04N13/302 ,  G09G3/36 ,  G09G3/3233 ,  H04N13/341 ,  H04N13/315 ,  G09G3/00 ,  G09G3/20

Abstract: A 3D display driving method, a 3D display driving device and a display device are provided. The 3D display driving method includes, during each display period: within a display duration (2n−1)th for a left-eye image of a left-eye image frame, scanning a first gate line in an nth group of gate lines, and within a part of the display duration (2n−1)th for the left-eye image, scanning a second gate line in the nth group of gate lines; and within a display duration (2n)th for a right-eye image of a right-eye image frame, scanning the second gate line in the nth group of gate lines, n being a positive integer smaller than or equal to M, and M being an integer greater than 1.

公开(公告)号：US10453909B2

公开(公告)日：2019-10-22

申请号：US15570615

申请日：2017-05-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yongqian Li ,  Pan Xu ,  Quanhu Li

IPC: H01L27/32 ,  H01L21/77 ,  G09G3/3225 ,  H01L51/50 ,  H01L51/52 ,  H01L51/56 ,  G09G3/3233

Abstract: An OLED array substrate and a manufacturing method thereof, an array substrate and a display device are provided. The OLED array substrate includes a wire; a plurality of pixel units, each of which includes an OLED light-emitting unit, a driving transistor and a storage capacitor; an insulation layer which covers the driving transistor, the storage capacitor and the wire; and a conductive layer, which is on the insulation layer and is configured to provide a common voltage to the plurality of the pixel units. At least one of the wire, the driving transistor and the storage capacitor is overlapped with the conductive layer in a direction perpendicular to the OLED array substrate.

公开(公告)号：US10396186B2

公开(公告)日：2019-08-27

申请号：US15736799

申请日：2017-07-14

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jiangbo Chen ,  Quanhu Li ,  Jingang Fang

IPC: H01L29/66 ,  H01L21/443 ,  H01L21/4763 ,  H01L21/423 ,  H01L29/786 ,  H01L29/423 ,  H01L29/49 ,  H01L21/02 ,  H01L27/12 ,  H01L21/768 ,  H01L29/24 ,  H01L21/465 ,  H01L27/32

Abstract: A thin film transistor, a method for fabricating the same, a display panel and a display device are disclosed. The method includes forming an active layer on a substrate; forming an insulating layer on the active layer and an exposed surface of the substrate; forming a first conductive layer on the insulating layer; patterning the first conductive layer and the insulating layer to form a first stack on the active layer, wherein the first stack includes a first portion of the first conductive layer and a first portion of the insulating layer, the first stack acts as a gate stack and the active layer includes a channel region below the gate stack and a source region and a drain region at two sides of the channel region; and performing plasma treatment on the first conductive layer, the source region and the drain region, to improve conductivity.

公开(公告)号：US20190189839A1

公开(公告)日：2019-06-20

申请号：US16182883

申请日：2018-11-07

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yicheng LIN ,  Cuili Gai ,  Baoxia Zhang ,  Ling Wang ,  Quanhu Li ,  Pan Xu

IPC: H01L33/00 ,  G09G3/00

Abstract: The present disclosure provides a display panel, a display device comprising such a display panel, and a method for processing defective pixels of such a display panel. The display panel comprises: a substrate; a plurality of pixel units on the substrate and arranged in an array. Each of the pixel units includes a light emitting region and a driving circuit region. In each of the pixel units, the driving circuit region includes a transistor, the light emitting region includes a first electrode, and the first electrode is electrically coupled to a first terminal of the transistor. In a row direction or a column direction of the plurality of pixel units arranged in an array, light emitting regions of two adjacent pixel units are adjacent to each other.

公开(公告)号：US10263052B2

公开(公告)日：2019-04-16

申请号：US15788230

申请日：2017-10-19

Applicant: BOE Technology Group Co., Ltd.

Inventor： Cuili Gai ,  Zhongyuan Wu ,  Kun Cao ,  Yicheng Lin ,  Quanhu Li

IPC: H01L27/32 ,  G02F1/133 ,  G02F1/1343 ,  G02F1/1334 ,  G02F1/137 ,  G02F1/163 ,  G02B27/01 ,  G02F1/153 ,  G02F1/15 ,  H01L51/52 ,  H01L51/56

Abstract: A display panel, a display method thereof, and a manufacturing method thereof are provided. The display panel includes a plurality of sub-pixel units. Each of the sub-pixel units includes a first display area and a second display area; the first display area includes an active emitting display unit; and the second display area is configured to switch between a transparent state and an opaque state.

公开(公告)号：US20180175204A1

公开(公告)日：2018-06-21

申请号：US15127262

申请日：2015-09-24

Applicant: BOE Technology Group Co., Ltd.

Inventor： Longyan Wang ,  Yongqian Li ,  Cuili Gai ,  Quanhu Li ,  Baoxia Zhang ,  Jingwen Yin ,  Kun Cao ,  Zhongyuan Wu ,  Gang Wang

IPC: H01L29/786 ,  H01L29/417 ,  H01L29/423 ,  H01L29/66 ,  H01L27/32 ,  H01L27/12

CPC classification number: H01L29/7869 ,  H01L27/1225 ,  H01L27/127 ,  H01L27/1288 ,  H01L27/3244 ,  H01L27/3262 ,  H01L29/41733 ,  H01L29/42384 ,  H01L29/66969 ,  H01L51/0023 ,  H01L51/105

Abstract: A thin film transistor and a fabrication method thereof, an array substrate and a display device are provided. The thin film transistor comprises a gate electrode, an active layer, a source electrode and a drain electrode. The source electrode and the drain electrode include a first conductive layer provided on the active layer, and an etching rate of a material of the first conductive layer is greater than an etching rate of a material of the active layer in an etching liquid. The problem that the active layer of the thin film transistor is easily corroded in a back channel etch process is avoided, a number of patterning processes is reduced, and fabrication cost is reduced.

公开(公告)号：US09881690B2

公开(公告)日：2018-01-30

申请号：US15135911

申请日：2016-04-22

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Quanhu Li ,  Zhongyuan Wu ,  Kun Cao ,  Baoxia Zhang

IPC: G11C19/00 ,  G11C19/28 ,  G09G3/3266 ,  G09G3/36

CPC classification number: G11C19/28 ,  G09G3/3266 ,  G09G3/3677 ,  G09G2300/0408 ,  G09G2310/0286

Abstract: A shift register unit having a pulse width modulation module is provided. The pulse width modulation module includes a first input submodule, a first pull-down submodule, a second input submodule, a second pull-down submodule, a third input submodule, and a third pull-down submodule.