公开(公告)号：US11354927B2

公开(公告)日：2022-06-07

申请号：US16472438

申请日：2018-12-06

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jianchao Zhu ,  Libin Liu

IPC: G06K9/00 ,  G06V40/13 ,  G06V10/147 ,  H01L27/32 ,  H01L51/56

Abstract: A fingerprint identification device, a display panel, a fabrication method thereof, and a display device are disclosed. The fingerprint identification device includes a fingerprint sensor, an aperture diaphragm, and a first shielding structure. The fingerprint sensor includes a plurality of sensing units; the aperture diaphragm is on a light incident side of the fingerprint sensor and includes an aperture through which light is allowed to be incident on at least one sensing unit of the fingerprint sensor; and the first shielding structure is on a side of the aperture diaphragm facing away from the fingerprint sensor, and surrounds at least a portion of the aperture.

公开(公告)号：US11335269B2

公开(公告)日：2022-05-17

申请号：US17043071

申请日：2020-02-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yipeng Chen ,  Libin Liu ,  Lujiang Huangfu

IPC: G09G3/3258 ,  G09G3/20 ,  G09G3/3291 ,  G09G3/3233

Abstract: The present disclosure provides a pixel circuit including: a driving transistor and a voltage control circuit; wherein in the voltage control circuit, at least one transistor directly coupled to a gate of the driving transistor is an oxide thin film transistor. The disclosure also provides a display substrate and a display apparatus.

公开(公告)号：US11282910B2

公开(公告)日：2022-03-22

申请号：US16635058

申请日：2019-01-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Li Wang ,  Libin Liu

IPC: H01L27/32 ,  H01L23/552 ,  H01L27/12

Abstract: The present disclosure provides an array substrate, a manufacturing method thereof, and a display device. The array substrate includes: a base substrate, a gate on the base substrate, a conductive wire above the base substrate, a first insulating layer on the gate and the base substrate, and a shielding structure on the base substrate. A first orthographic projection of the conductive wire on the base substrate is spaced apart from a second orthographic projection of the gate on the base substrate. A third orthographic projection of the shielding structure on the base substrate is located between the first orthographic projection and the second orthographic projection. The shielding structure is used to at least partially shield a crosstalk of the conductive wire to the gate.

公开(公告)号：US11227521B2

公开(公告)日：2022-01-18

申请号：US16652180

申请日：2019-10-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Can Zheng ,  Libin Liu ,  Li Wang ,  Tian Dong ,  Guangliang Shang ,  Xinshe Yin

IPC: G09G3/00

Abstract: The present disclosure relates to a gate driving circuit applied to a foldable display panel comprising B display areas arranged in order. The gate driving circuit may include B gate driving subcircuits and a control circuit. Each of the gate driving subcircuits may correspond to one of the display areas and each of the gate driving subcircuits may comprise a plurality of stage gate driving units. The control circuit may be configured to, when the foldable display panel is in a full screen display state, control a type of an input signal in a last stage gate driving unit of a bth gate driving subcircuit to be the same as a type of an input signal in a first stage gate driving unit of a (b+1)th gate driving subcircuit, where B is an integer greater than 1 and b is a positive integer less than B.

公开(公告)号：US11217147B2

公开(公告)日：2022-01-04

申请号：US16772851

申请日：2019-12-26

Applicant: BOE Technology Group Co., Ltd.

Inventor： Libin Liu

IPC: G09G3/20 ,  G09G3/3283

Abstract: A light-emitting control circuit and a driving method of a display device are disclosed. The display device includes a plurality of rows of sub-pixels; each row of sub-pixels includes at least first color sub-pixels and second color sub-pixels; each of the first and second color sub-pixels includes a pixel circuit and a light-emitting unit; the light-emitting control circuit includes a plurality of light-emitting control circuit groups which are in a one-to-one correspondence with the plurality of rows of sub-pixels; each of the plurality of light-emitting control circuit groups at least includes a first light-emitting control sub-circuit and a second light-emitting control sub-circuit; the first and second light-emitting control sub-circuit provide a first light-emitting control signal and a second light-emitting control signal, respectively; and each of the first and second light-emitting control signal is used for driving the pixel circuit to output a driving current to the light-emitting unit.

公开(公告)号：US11205364B2

公开(公告)日：2021-12-21

申请号：US17052893

申请日：2019-12-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Libin Liu ,  Can Zheng ,  Yu Feng ,  Jiangnan Lu

IPC: G09G3/20

Abstract: A gate driving circuit and a display substrate are provided. The gate driving circuit may provide a driving signal to gate lines, and include output units cascaded to each other and having a same circuit structure. Each output unit includes at least one output transistor, outputs the driving signal to a corresponding gate line through the output transistor, and all the at least one output transistor is coupled to one gate line. The output units are classified as first and second output units. A number of sub-pixels coupled to the gate line corresponding to each first output unit is greater than a number of sub-pixels coupled to the gate line corresponding to each second output unit, and an output capability of at least one output transistor of the first output unit is greater than an output capability of a corresponding output transistor of the second output unit.

公开(公告)号：US11177448B2

公开(公告)日：2021-11-16

申请号：US16611110

申请日：2019-01-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Shuai Zhang ,  Yueping Zuo ,  Libin Liu

IPC: H01L51/56 ,  H01L51/00 ,  H01L27/32

Abstract: The present disclosure provides a flexible display device and a manufacturing method. The manufacturing method includes: forming a layer of flexible display devices on a support plate; etching the layer of flexible display devices on the support plate to expose a portion of the support plate at a cutting region, the cutting region being a predetermined region between two adjacent flexible display devices; and removing the layer of flexible display devices from the support plate after the etching process so as to obtain a plurality of flexible display devices separated from each other.

公开(公告)号：US10990784B2

公开(公告)日：2021-04-27

申请号：US16378201

申请日：2019-04-08

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Qiang Wang ,  Libin Liu

IPC: G06K9/00 ,  G01S7/52 ,  G06F3/043

Abstract: The present disclosure provides a signal receiving circuit and a driving method thereof, a display panel, and a display apparatus. The signal receiving circuit includes a reset circuit having an input terminal connected to a reference signal line for providing a reference voltage signal, a control terminal connected to a reset signal line providing a reset signal, and an output terminal connected to a collection node, the reset circuit being configured to control a voltage of a signal at the collection node under control of the reset signal; and an output circuit having an input terminal connected to the collection node, configured to accumulatively amplify the signal at the collection node and output the amplified signal.

公开(公告)号：US10861388B2

公开(公告)日：2020-12-08

申请号：US16518350

申请日：2019-07-22

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhenzhen Li ,  Libin Liu ,  Li Wang

IPC: G09G3/3233 ,  H01L27/32

Abstract: A display panel and a driving method thereof, a display device. The display panel includes a common cathode, a first power terminal, a first wire and a first switch. The driving method includes: obtaining a total image current of a display image; and determining whether the total image current is greater than a first threshold current, if the total image current is greater than the first threshold current, controlling the first switch to disconnect the first wire, if the total image current is not greater than the first threshold current, controlling the first switch to connect the first wire, so that the second side of the common cathode is connected to the first power terminal through the first wire.

公开(公告)号：US20200035166A1

公开(公告)日：2020-01-30

申请号：US16398762

申请日：2019-04-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Jianchao Zhu ,  Libin Liu

IPC: G09G3/3266 ,  G11C19/28

Abstract: The embodiments of the present disclosure disclose a gate driving circuit. The gate driving circuit includes at least one stage of shift register unit to be compensated, wherein a driving terminal of each stage of shift register unit to be compensated is connected to a gate line of a corresponding row of pixels to be compensated, and at least one stage of parasitics compensation circuit, wherein each stage of parasitics compensation circuit is connected in series between a power supply line and a driving terminal of a corresponding shift register unit to be compensated. Each stage of parasitics compensation circuit is configured to compensate a driving terminal of a corresponding shift register unit to be compensated for parasitic capacitance and/or parasitic resistance, so that respective stages of shift register units to be compensated have the same driving load.