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:
Jun. 18, 2019
Filed:
Sep. 04, 2018
Yazaki Corporation, Tokyo, JP;
Noriaki Narushima, Shizuoka, JP;
YAZAKI CORPORATION, Minato-ku, Tokyo, JP;
Abstract
In the backlight unit, the polarizing plate causes light oscillating in a direction orthogonal to the reference oscillation direction transmit to the quarter wavelength plate among beams of the light incident from the light collecting member, with the oscillation direction of the light transmitting through the liquid crystal panel as the reference oscillation direction, and reflects light oscillating in the reference oscillation direction from a side of the micromirror array toward the liquid crystal panel. The quarter wavelength plate converts the light incident from the polarizing plate side and transmitting to the side of the micromirror array into the first polarized light, and converts the first polarized light reflected by the mirror array and transmitting toward the polarizing plate into the second polarized light oscillating in a direction identical to the reference oscillating direction.