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. 22, 2025
Filed:
Dec. 12, 2022
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Chang Joon Park, Sunnyvale, CA (US);
Mike Voong, Daly City, CA (US);
Brock McCray Roland, San Bruno, CA (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
Examples are disclosed that relate to a power supply device for controlling a liquid crystal display (LCD) panel in a reliable and power efficient manner. In one example, the power supply device includes a positive-side switching converter, a negative-side switching converter, and a controller. In an active-bias mode, the controller controls the positive-side switching converter and the negative-side switching converter to alternate a polarity of a bias voltage across a positive output node and a negative output node by alternating between a forward-bias state and a reverse-bias state. In a neutral-bias mode, the controller provides a neutral bias voltage across the positive output node and the negative output node.