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:
Sep. 29, 2026
Filed:
Jul. 31, 2025
Samsung Display Co., Ltd., Yongin-si, KR;
Seoul National University R&db Foundation, Seoul, KR;
Sehyun Lee, Yongin-si, KR;
Ji-Hwan Park, Seoul, KR;
Kwihyun Kim, Yongin-si, KR;
Soo-Yeon Lee, Seoul, KR;
Sunhwa Lee, Yongin-si, KR;
Kyunghoon Chung, Yongin-si, KR;
SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do, KR;
SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, Seoul, KR;
Abstract
A pixel of a display device includes a pulse width modulation ('PWM') circuit configured to generate a PWM signal based on a PWM data voltage and a sweep voltage, a constant current generation (“CCG”) circuit configured to generate an emission current based on a CCG data voltage and the PWM signal, and a light-emitting element configured to emit light based on the emission current. The CCG circuit includes a CCG driving transistor configured to generate the emission current, a first capacitor including a first electrode which receives a first CCG power supply voltage having a relatively high power voltage level, and a second electrode connected to a gate of the CCG driving transistor, and a second capacitor including a first electrode connected to the gate of the CCG driving transistor, and a second electrode which receives the PWM signal generated by the PWM circuit.