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:
Feb. 13, 2024
Filed:
May. 25, 2023
Jvckenwood Corporation, Yokohama, JP;
Takayuki Iwasa, Yokohama, JP;
JVCKENWOOD Corporation, Yokohama, JP;
Abstract
Each of multiple pixels of a spatial light modulator of an optical node device includes: a first switching circuit and a first signal holding circuit that sample and hold normal gradation data or inverted gradation data; and a second switching circuit and a second signal holding circuit that sample the normal or inverted gradation data held in the first signal holding circuit at a common timing to the multiple pixels, hold the normal or inverted gradation data for one subframe period, and apply the normal or inverted gradation data to a reflective electrode. The spatial light modulator drive unit applies alternating current voltage having positive polarity and a negative polarity to liquid crystal by inverting voltage in a common electrode of a liquid crystal display element and supplies a voltage having an amplitude different from an amplitude between the normal and inverted gradation data to the common electrode.