公开(公告)号：US20190129570A1

公开(公告)日：2019-05-02

申请号：US15983451

申请日：2018-05-18

Applicant: BOE Technology Group Co., Ltd. ,  Ordos Yuansheng Optoelectronics Co., Ltd.

Inventor： Lina Liu ,  Hualing Yang

IPC: G06F3/041

Abstract: The present disclosure discloses an anti-mistouch apparatus and method of a flexible screen. The flexible screen comprises N touch driving lines and M touch sensing lines intersecting with the N touch driving lines, where N and M are integers greater than 1. The apparatus comprises a detection circuit configured to detect a bending state of the flexible screen; and a driving conversion circuit connected to the detection circuit and configured to determine a display surface and a non-display surface of the flexible screen according to the bending state of the flexible screen, control at least one touch driving line included in the display surface to enter an operating state, and control at least one touch driving line included in the non-display surface to enter a non-operating state.

公开(公告)号：US20170278448A1

公开(公告)日：2017-09-28

申请号：US15228025

申请日：2016-08-04

Applicant: BOE Technology Group Co., Ltd. ,  Ordos Yuansheng Optoelectronics Co., Ltd.

Inventor： Zhiguang Zhang ,  KwangGyun Jang ,  Chang Zhang ,  Hualing Yang ,  Jing Liu

IPC: G09G3/20 ,  G09G3/3225

CPC classification number: G09G3/2074 ,  G09G3/2003 ,  G09G3/3225 ,  G09G2320/0276 ,  G09G2320/0626 ,  G09G2320/0673

Abstract: Embodiments of the present disclosure provide gamma correction method and device for a display module. The gamma correction method includes: determining, for each sub-pixel of a display module to be corrected, the highest data voltage and the lowest data voltage after gamma correction of the highest gray scale and the lowest gray scale of the display module; determining at least one set of alternative gamma register values that are capable of performing gamma correction of the display module; determining at least one set of gamma register values to be corrected for respective gray scales before the gamma correction of the display module; and performing gamma correction of the display module by adjusting the gamma register value corresponding to the gray scale to be corrected which needs to perform gamma correction.

公开(公告)号：US12190800B2

公开(公告)日：2025-01-07

申请号：US18246047

申请日：2022-05-31

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Baoyun Wu ,  Yang Yu ,  Yuanzhang Zhu ,  Xuesong Tian ,  Xinbin Han ,  Shiming Shi ,  Hui Zhao ,  Hualing Yang

IPC: G09G3/3225 ,  G09G3/20 ,  G09G3/3266

Abstract: A display controller, a display device, a display system, and a control method are provided. The display controller includes: a flag-signal circuit configured to send a flag-signal to an application processor; an image processing circuit configured to obtain second current image data in response to receiving first current image data from the application processor, wherein the first current image data is sent by the application processor in response to receiving the flag-signal sent from the flag-signal circuit; and a drive circuit configured to generate a first drive control signal in response to receiving the second current image data from the image processing circuit.

公开(公告)号：US11756457B2

公开(公告)日：2023-09-12

申请号：US16345545

申请日：2018-09-20

Applicant: ORDOS YUANGHENG OPTOELECTRONICS CO., LTD. ,  BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Lina Liu ,  Hualing Yang

IPC: H10K59/40 ,  G09F9/30 ,  G06F3/044 ,  G06F3/041 ,  H10K50/87 ,  H10K50/86 ,  H10K59/121 ,  H10K102/00

CPC classification number: G09F9/301 ,  G06F3/0412 ,  G06F3/0443 ,  H10K50/865 ,  H10K50/87 ,  H10K59/121 ,  H10K59/40 ,  G06F2203/04102 ,  G06F2203/04105 ,  H10K2102/311

Abstract: The present disclosure provides a flexible display screen and a display device. The flexible display screen includes: a substrate; a backing film stacked on a side of the substrate facing away from a light-emitting surface of the flexible display screen; and a pressure sensor stacked on a side of the backing film facing away from the substrate and configured to output a signal related to a force applied on the flexible display screen.

公开(公告)号：US10831324B2

公开(公告)日：2020-11-10

申请号：US16053405

申请日：2018-08-02

Applicant: BOE Technology Group Co., Ltd.

Inventor： Lina Liu ,  Meizhu Zheng ,  Yuanyuan Li ,  Hualing Yang

IPC: G06F3/044

Abstract: The present disclosure provides a touch panel, including: a flexible substrate including a first region, a second region and a bendable region between the first region and the second region; a first touch sensing layer provided in the first region of the flexible substrate, configured to sense a touch position and connected to a flexible circuit board; a second touch sensing layer provided in the second region of the flexible substrate and configured to sense a touch pressure; and a signal line provided in the bendable region of the flexible substrate and having a first end extending to the first region to be connected to the flexible circuit board and a second end extending to the second region to be connected to the second touch sensing layer.

公开(公告)号：US10553153B2

公开(公告)日：2020-02-04

申请号：US15521564

申请日：2016-08-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Ying Liu ,  Chenggeng Zhang ,  Zhaohui Meng ,  Hongwei Tian ,  Juanjuan Bai ,  Meng Shao ,  Wen Sun ,  Can Zheng ,  Hualing Yang

IPC: G09G3/3233

Abstract: A method, a circuit and a display device for driving an organic light emitting diode, wherein a driving transistor (DTFT) for driving a display element is turned off by jumping one or more of a reference voltage input (Vref), a reset voltage input (Vinit) and a data signal input (Vdata) before beginning to output an EL high level (ELVDD) of a pixel compensation circuit and after beginning to output an EL low level (ELVSS), to overcome the splash screen phenomenon during power-up and direct current-direct current driving failure.

公开(公告)号：US10510295B2

公开(公告)日：2019-12-17

申请号：US15739951

申请日：2017-06-09

Applicant: BOE TECHNOLOGY GROUP CO., LTD. ,  ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.

Inventor： Chenggeng Zhang ,  Nan Lu ,  Yufei Wang ,  Hualing Yang ,  Jing Liu

IPC: G09G3/3258 ,  G09G3/3233 ,  G09G3/3225

Abstract: An apparatus for controlling an EL drive voltage for a display panel is disclosed, which includes a current sensing circuit configured to detect an EL drive current signal outputted to the display panel, and convert the EL drive current signal into a first voltage signal, a signal generation circuit configured to generate a pulse signal based on the first voltage signal, a current protection circuit configured to generate a first control signal based on the first voltage signal and a reference voltage, and a signal coupling circuit configured to output, based on the first control signal, the pulse signal or a low level signal as a second control signal to control the EL drive voltage. According to the embodiments of the present disclosure, the EL drive voltage of the display panel can be dynamically controlled, and be reset to normal when it is overhigh.