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:
Jul. 02, 2024
Filed:
Jan. 31, 2022
Samsung Electronics Co., Ltd., Suwon-si, KR;
Kookmin University Industry Academy Cooperation Foundation, Seoul, KR;
Duhee Jang, Suwon-si, KR;
Sangkyoo Han, Seoul, KR;
Jeongil Kang, Suwon-si, KR;
Hyosoon Choi, Suwon-si, KR;
Kasan Ha, Suwon-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Kookmin University Industry Academy Cooperation Foundation, Seoul, KR;
Abstract
Disclosed is a display apparatus including: a display; a transformer configured to boost an input alternating current (AC) first voltage and output a second voltage; a switch configured to allow an electric current to flow or stop in the transformer based on a control signal; a power factor correction (PFC) converter configured to correct a power factor of the output second voltage, and output a direct current (DC) third voltage to the display; and a controller configured to modulate a frequency of the control signal so that the second voltage has a target level, and increase or decrease the frequency of the control signal within a specified range to synchronize with an AC period of the first voltage.