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:
May. 28, 2019
Filed:
Nov. 30, 2015
Kunshan Go-visionox Opto-electronics Co., Ltd., KunShan, Jiangsu, CN;
Mingwei Ge, KunShan, CN;
Shingo Kawashima, KunShan, CN;
KUNSHAN GO-VISIONOX OPTO-ELECTRONICS CO., LTD., Jiangsu, CN;
Abstract
An active matrix organic light-emitting diode (AMOLED) display device and a controlling method thereof. The AMOLED display device () comprises a system power IC (), a driver IC (), an AMOLED panel (), a power line () and a feedback line (). The AMOLED panel () includes a plurality of pixel circuits. The system power IC () outputs a positive power supply voltage (ELVdd) to the plurality of pixel circuits via the power line (), and the driver IC () detects a positive power supply voltage (ELVdd) actually applied to the plurality of pixel circuits via the feedback line () and compensates for data voltages (Vdata) based on the positive power supply voltage (ELVdd) actually applied to plurality of pixel circuits. The driving chip detects the positive power supply voltage (ELVdd) actually applied to plurality of pixel circuits, and automatically adjusts a minimum grayscale voltage (VREG) and a maximum grayscale voltage (VGS) based on the positive power supply voltage (ELVdd) actually applied to the plurality of pixel circuits, such that a certain difference value can be maintained between the data voltage (Vdata) and the positive power supply voltage (ELVdd) actually applied to the plurality of pixel circuits, thus eliminating Gamma offset.