The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 01, 2022
Filed:
Jun. 24, 2020
Hefei Xinsheng Optoelectronics Technology Co., Ltd., Anhui, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., Anhui, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
A method for controlling a charging time of a display panel includes: during t+kΔt in a (k+1)-th blanking time, writing a data voltage to a gate of a driving transistor, and detecting a voltage Vof a second electrode of the driving transistor; during a t+(k+r)Δt in a (k+1+r)-th blanking time, writing the data voltage to the gate of the driving transistor, and detecting a voltage Vof the second electrode of the driving transistor; determining whether ΔV=V−Vis less than or equal to a target voltage difference VT; if ΔV≤VT, taking the T=t+kΔt as an expected charging time of a sub-pixel; if ΔV>VT, cyclically performing the charging step described above to obtain ΔV=V−V, and comparing ΔVwith the target voltage difference VT, until ΔV≤VT, taking t+(k+p+r−1)Δt as the expected charging time of the sub-pixel. p is taken from 1, and increases by 1 for each cycle.