公开(公告)号：US10825395B2

公开(公告)日：2020-11-03

申请号：US15558068

申请日：2017-02-17

Applicant: BOE TECHNOLOGY GROUP CO., LTD. ,  HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.

Inventor： Lei Chen ,  Chen Song ,  Airong Liu ,  Tangxiang Wang ,  Xuelian Cheng

IPC: G09G3/3258 ,  G09G3/3233 ,  H01L27/32 ,  H01L51/52 ,  G09G3/3291 ,  G09G3/3283

Abstract: Disclosed are a circuit and a method for detecting a driving current of an organic light emitting diode display device, and an organic light emitting diode display device, the method includes: after detecting for a predetermined time period, obtaining an output voltage of the integrating circuit, and comparing the output voltage with at least one reference voltage; in the case that the output voltage and the reference voltage satisfy a predetermined condition, adjusting capacitance of a capacitor of the integrating circuit.

公开(公告)号：US10411489B2

公开(公告)日：2019-09-10

申请号：US15576644

申请日：2017-07-17

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chen Song ,  Airong Liu ,  Tangxiang Wang ,  Lei Chen

IPC: H02J7/00 ,  H02J7/34 ,  H03F3/45 ,  H03K5/24

Abstract: A method is disclosed for controlling charging/discharging of a capacitor module. The capacitor module includes a plurality of branches connected in parallel, each of which includes a capacitor and a switch connected in series with the capacitor. The method includes measuring a first charge/discharge time for the capacitor module being charged/discharged from an initial voltage to an intermediate voltage, and To adjusting a second charge/discharge time for the capacitor module being further charged/discharged from the intermediate voltage to a target voltage by controlling on/off of at least one of the switches depending on the first charge/discharge time, the intermediate voltage being between the initial voltage and the target voltage. Also disclosed are an apparatus for controlling charging/discharging of a capacitor module and a display apparatus including the apparatus.