公开(公告)号：US20220076631A1

公开(公告)日：2022-03-10

申请号：US17417318

申请日：2020-09-18

Applicant: BOE Technology Group Co., Ltd.

Inventor： Tian DONG

IPC: G09G3/3258

Abstract: A pixel circuit, a driving method, and a display device are provided. The pixel circuit include: a signal input subcircuit, a threshold compensation subcircuit, a light-emitting control subcircuit, a drive transistor, a light-emitting device. The signal input subcircuit writes a voltage at a data signal end, a voltage at a reference voltage signal end, and a threshold voltage of the drive transistor into a gate thereof according to signals of first, second, and third control signal ends. The threshold compensation subcircuit turns on a gate of the drive transistor and a drain thereof under the control of a signal of a reset signal end. The light-emitting control subcircuit turns on a first power supply end and the drive transistor, and turns on the drive transistor and the light-emitting device under the control of a signal of a first light-emitting control end and a signal of a second light-emitting control end.

公开(公告)号：US20210376046A1

公开(公告)日：2021-12-02

申请号：US17256006

申请日：2020-10-29

Applicant: BOE Technology Group Co., Ltd.

Inventor： Tian DONG

IPC: H01L27/32 ,  H01L51/56 ,  G09G3/3233 ,  G09G3/3291

Abstract: Disclosed are a display substrate and a manufacturing method thereof, and a display apparatus. The display substrate includes, in a plane parallel to the display substrate, a plurality of gate lines, a plurality of data lines, a plurality of power lines and a plurality of sub-pixels arranged on a base substrate. At least one sub-pixel includes a light-emitting device and a driving circuit configured to drive the light-emitting device to emit light. The driving circuit includes a plurality of transistors and a storage capacitor. The display substrate includes, in a plane perpendicular to the display substrate, a base substrate and a plurality of functional layers. The plurality of functional layers includes a semiconductor layer, a first conductive layer, a second conductive layer, a third conductive layer and a fourth conductive layer which are sequentially arranged.

公开(公告)号：US20210233450A1

公开(公告)日：2021-07-29

申请号：US17051584

申请日：2020-03-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xinshe YIN ,  Tian DONG

IPC: G09G3/20

Abstract: A driving circuit for a display panel is disclosed, where the display panel comprises data lines. The driving circuit for the display panel includes a share line coupled to the data lines; a power supply circuit connected to the share line, and configured to provide a share voltage to the share line; and switch units coupled to the data lines, where each of the switch units has a first end coupled to the share line and a second end coupled to a corresponding one of the data lines, and the switch units are configured to, in a share phase, connect the data lines and transmit the share voltage on the share line to the data lines in response to a control signal. The display panel drive circuit can reduce the power consumption of a source drive circuit of the display panel.

公开(公告)号：US20200184893A1

公开(公告)日：2020-06-11

申请号：US16617565

申请日：2018-11-27

Applicant: BOE Technology Group Co., Ltd.

Inventor： Tian DONG

IPC: G09G3/3258

Abstract: A pixel circuit, a drive method, an electroluminescent light emitting display panel, and a display apparatus, the pixel circuit comprising: a light emitting device; a drive transistor is configured to generate drive current during light emitting phase to drive the light emitting device to emit light; a gate electrode of drive transistor is coupled to a capacitance circuit and a data write circuit, a first electrode of drive transistor is coupled to a reset circuit, and a second electrode of drive transistor is coupled to the reset circuit and a first electrode of light emitting device; the capacitance circuit is configured to store voltage of gate electrode of drive transistor; the data write circuit is configured to provide data signal to the gate electrode of drive transistor during data write phase; the reset circuit is configured to reset the first electrode, the second electrode of drive transistor during reset phase.

公开(公告)号：US20190189057A1

公开(公告)日：2019-06-20

申请号：US16172509

申请日：2018-10-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Tian DONG

IPC: G09G3/3258 ,  H01L51/52 ,  G09G3/3233

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/0262 ,  H01L51/5203

Abstract: A pixel circuit includes: a reset sub-circuit, configured to write an input voltage of a reset terminal into a first control point and write an input voltage of a reference power source terminal into a second control point; a drive control sub-circuit, configured to write an input voltage of a data terminal into the first control point; a power supply sub-circuit, configured to supply a voltage of a first power source terminal to the second control point and enable a third control point to communicate with a fourth control point; a storage sub-circuit, configured to store voltages of the first and second control points; a drive sub-circuit, configured to discharge electricity under the control of the voltages of the first and second control points; and a light-emitting element, configured to emit light under the control of a voltage of the fourth control point.

公开(公告)号：US20180068594A1

公开(公告)日：2018-03-08

申请号：US15511131

申请日：2016-04-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Tian DONG

IPC: G09F9/30 ,  G06F1/16 ,  H01L27/32 ,  H04M1/02 ,  H05K1/02

CPC classification number: G09F9/301 ,  E05F1/1016 ,  G06F1/1616 ,  G06F1/1641 ,  G06F1/1652 ,  G06F1/1679 ,  G06F1/1681 ,  H01L27/3237 ,  H01L2251/5338 ,  H04M1/0268 ,  H05K1/028 ,  H05K2201/10128

Abstract: A flexible display device having an auxiliary apparatus for unfolding and folding a flexible display panel. The auxiliary apparatus for unfolding and folding a flexible display panel includes a support plate structure configured to be fixedly attached to the flexible display panel and having a first state and a second state, wherein the support plate structure is configured to assist in the first state the flexible display panel to be in a folded state, and assist in the second state the flexible display panel to be in an unfolded state, and a locking mechanism configured to lock the support plate structure in the first state.