公开(公告)号：US20220139328A1

公开(公告)日：2022-05-05

申请号：US16955986

申请日：2019-08-27

Applicant: BOE Technology Group Co., Ltd.

Inventor： Fei Yang ,  Yi Chen ,  Lirong Wang

IPC: G09G3/3275

Abstract: The present disclosure provides a detection circuit (10) and a driving method, a driving circuit (20), a driving apparatus (100) and a display apparatus. The detection circuit (10) comprises a switching sub-circuit (101) and an analog-to-digital conversion sub-circuit (102). The switching sub-circuit (101) may control on-off states between a sense line (SL) and a reference power terminal (VF), a reset power terminal (RST) and the analog-to-digital conversion sub-circuit (102) according to control signals provided by the external compensation circuit (01). Wherein, a sense signal may include pixel characteristic values or may be a reference power signal.

公开(公告)号：US11263969B2

公开(公告)日：2022-03-01

申请号：US16937486

申请日：2020-07-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Fei Yang ,  Song Meng ,  Xiaolong Wei

IPC: G09G3/3208 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3275

Abstract: A pixel circuit, a parameter detection method, a display panel and a display device are provided. The pixel circuit includes a data writing-in circuit, a driving circuit, a reset control circuit, a detection control circuit, and a light emitting element. The detection control circuit is configured to control the connection or disconnection between the first electrode of the light emitting element and the sensing line under the control of a detection control signal provided by the detection control line. The reset control circuit is configured to control the connection or disconnection between the first electrode of the light emitting element and the second electrode of the light emitting element under the control of a reset control signal provided by the reset control line.

公开(公告)号：US20210150963A1

公开(公告)日：2021-05-20

申请号：US16620134

申请日：2019-04-15

Applicant: BOE Technology Group Co., Ltd.

Inventor： Fei Yang ,  Mingi Chu ,  Lirong Wang

IPC: G09G3/20 ,  G09G3/3208

Abstract: Disclosed are a chroma compensation method and apparatus, a display device and a storage medium. The chroma compensation method includes: acquiring an initial color of a display sub-pixel in a target pixel unit under a target luminance, and a target color of the target pixel unit under the target luminance, the target pixel unit including: at least two display sub-pixels of different light colors; acquiring a complementary color gain of each of the display sub-pixels under the target luminance based on the target color and the initial color of each of the display sub-pixels; and compensating for chrominance of the target pixel unit based on the complementary color gain of each of the display sub-pixels under the target luminance.

公开(公告)号：US10291224B2

公开(公告)日：2019-05-14

申请号：US15737111

申请日：2017-06-07

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Fei Yang ,  Zhongyuan Wu ,  Yue Wu

IPC: H03K17/00 ,  H03K17/30 ,  G09G3/3208 ,  G06F3/147 ,  H03K19/21 ,  G09G3/3233 ,  G09G3/3266 ,  G11C19/28

Abstract: Embodiments of this disclosure provide a gate driving circuit, a driving method thereof, a display panel and a display device. The gate driving circuit comprises: a corner cutting circuit and a scanning circuit. The corner cutting circuit is configured to output a corner cut voltage signal, wherein the corner cut voltage signal comprises a pulse whose edge is smoothed. The scanning circuit is configured to output a corner cut scanning signal based on the corner cut voltage signal, wherein the corner cut scanning signal comprises a pulse whose edge is smoothed.

公开(公告)号：US09898960B2

公开(公告)日：2018-02-20

申请号：US14646258

申请日：2014-09-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Fei Yang ,  Chen Zhang ,  Yue Wu

IPC: G09G3/32 ,  G09G3/3208 ,  G09G3/20 ,  G09G3/3233

CPC classification number: G09G3/3208 ,  G09G3/2074 ,  G09G3/3233 ,  G09G2300/0852 ,  G09G2320/045

Abstract: The present disclosure provides a pixel circuit, its driving method, an OLED display panel and an OLED display device. The pixel circuit includes row pixel units each including subpixel units. The row pixel unit includes an auxiliary compensating circuit, which is configured to generate a switching control signal inputted to a subpixel driving circuit according to a scanning signal from a gate driving circuit, and generate a compensating control signal inputted to the subpixel driving circuit according to a control signal from the gate driving circuit. The subpixel driving circuit is configured to receive a data voltage from a data line accordance to the switching control signal, control a driving transistor to drive an OLED to emit light according to the data voltage, and compensate for a threshold voltage of the driving transistor according to the compensating control signal when the driving transistor drives the OLED to emit light.

公开(公告)号：US09831826B2

公开(公告)日：2017-11-28

申请号：US14415635

申请日：2014-04-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chen Zhang ,  Fei Yang

IPC: H02J7/00 ,  H02S40/38 ,  H02J7/35 ,  G02F1/133

CPC classification number: H02S40/38 ,  G02F1/13306 ,  G02F2001/13324 ,  H02J7/35

Abstract: The present invention provides a display substrate and a display device, belonging to the field of display technology. In view of the problem that the energy-saving techniques of an existing liquid crystal display have yet to be further developed and improved, the present invention provides the display substrate comprising photoelectric conversion element for converting light energy into electric energy and the display device including the above display substrate. According to the display substrate and the display device of the present invention, renewable light energy is converted into electric energy by using the photoelectric conversion elements to supply power to the display device, so that the energy consumption of an external power supply by the display device may be reduced, and further, non-renewable resources may be favorably saved.

公开(公告)号：US09801267B2

公开(公告)日：2017-10-24

申请号：US15219935

申请日：2016-07-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yue Wu ,  Fei Yang ,  Min He ,  Yu Wang

IPC: H05K1/11 ,  H05K1/02

CPC classification number: H05K1/0237 ,  H05K1/025 ,  H05K1/0268

Abstract: The present invention provides a wiring structure of high frequency signal wires and a PCB board including the wiring structure of high frequency signal wires. A test part is formed by extending a high frequency signal wire from a connection end connected with a solder pad, and a test window corresponding to a position of the test part is provided on a copper foil which covers the solder pad and the test part, to expose the high frequency signal wire, such that a high frequency signal transmitted via the high frequency signal wire can be directly tested at the test window. Thus, circular test points used in the prior art can be removed, to effectively solve the problem of insufficient space on a PCB; accordingly, lengths of the high frequency signal wires become more precise, so as to ensure a synchronization of transmission of the high frequency signal wires.

公开(公告)号：US09672773B2

公开(公告)日：2017-06-06

申请号：US14648123

申请日：2014-09-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chen Zhang ,  Fei Yang

IPC: G09G3/3258 ,  G09G3/20 ,  G09G3/3233 ,  G09G3/00

CPC classification number: G09G3/3258 ,  G09G3/006 ,  G09G3/2011 ,  G09G3/3233 ,  G09G2320/0295 ,  G09G2320/045 ,  G09G2320/0633 ,  G09G2320/0673 ,  G09G2320/0693 ,  G09G2330/12 ,  G09G2360/145

Abstract: A method for adjusting a gamma voltage of an OLED display device, including; acquiring a test picture pre-stored in the OLED display device, and extracting a first piece of data information on the test picture; comparing the first piece of data information with a pre-stored second piece of data information on the test picture before the OLED display device is aged, analyzing a comparison result, and obtaining the aging coefficient of the OLED display device; acquiring a set of gamma voltage values corresponding to the aging coefficient, outputting the set of gamma voltage values to a gamma integrated circuit of the OLED display device, and completing the adjustment of the gamma voltage.

公开(公告)号：US12205537B2

公开(公告)日：2025-01-21

申请号：US18004345

申请日：2021-12-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Mingi Chu ,  Ying Han ,  Song Meng ,  Fei Yang ,  Lirong Wang ,  Zhiqiang Dong ,  Tianji Li ,  Jingbo Xu ,  Pan Li

IPC: G09G3/3225 ,  G09G3/20

Abstract: A display device and a driving method thereof. The display device includes a display substrate and at least one optical sensing unit; the display substrate includes a light-emitting region and a plurality of pixel units located in the light-emitting region; wherein the light-emitting region comprises a single-sided light-emitting region and at least one double-sided light-emitting region, and each of the pixel units in the plurality of pixel units comprises a plurality of sub-pixels; and the at least one optical sensing unit corresponds to the at least one double-sided light-emitting region from a non-display side of the display substrate, and configured to sense light emitted by the sub-pixels during operation in the at least one double-sided light-emitting region, and to provide sensing brightness information of the at least one double-sided light-emitting region to perform brightness compensation on the light-emitting region.

公开(公告)号：US20240404475A1

公开(公告)日：2024-12-05

申请号：US18782025

申请日：2024-07-24

Applicant: BOE Technology Group Co., Ltd.

Inventor： Fei Yang ,  Song Meng ,  Zhiqiang Dong ,  Yi Chen ,  Jingbo Xu ,  Jianbo Xian

IPC: G09G3/3258 ,  G09G3/3291

Abstract: A data driving integrated circuit includes a digital-to-analog converter configured to receive a respective digital data signal from a timing controller and convert the respective digital data signal to a respective analog data signal, which is output to a display panel through a respective data line; an analog-to-digital converter configured to receive a respective analog sensing signal from a respective sensing line in the display panel and convert respective analog sensing signal to a respective digital sensing signal, which is output to the timing controller; a first sensing switch configured to control a connection between a first reference voltage line and the respective sensing line; a second sensing switch configured to control a connection between a second reference voltage line and the respective sensing line; and a third sensing switch configured to control the connection between the analog-to-digital converter and the respective sensing line.