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:
Apr. 14, 2026
Filed:
Nov. 05, 2024
Avision Inc., Hsinchu, TW;
Yen-Cheng Chen, Hsinchu, TW;
Chin-Hung Wang, Hsinchu, TW;
AVISION INC., Hsinchu, TW;
Abstract
An OLED print head includes a control unit, multiple light-emitting units and an OLED. Each light-emitting unit includes a first driving circuit and a second driving circuit. The first driving circuit includes a first capacitor and a first switch, and is configured to store a correction voltage corresponding to a correction signal in the first capacitor in response to a trigger pulse of a scan signal, and the first switch is controlled by the correction voltage. The second driving circuit includes a second capacitor and a second switch, and is configured to store an enable voltage corresponding to an enable signal in the second capacitor in response to the trigger pulse of the scan signal, and the second switch is controlled by the enable voltage. When both the first switch and the second switch are turned on, the OLED obtains a driving current related to the correction voltage.