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:
Nov. 26, 2024
Filed:
Sep. 05, 2023
Japan Display Inc., Tokyo, JP;
Takeo Koito, Tokyo, JP;
Junji Kobashi, Tokyo, JP;
Japan Display Inc., Tokyo, JP;
Abstract
The display device includes an image display panel emitting linearly polarized light from a display area, a retardation plate on the image display panel, a variable phase difference element located on the retardation plate and providing phase difference to an incoming light, and a liquid crystal diffraction element on the variable phase difference element. The variable phase difference element is switchable between an on state, an off state, and an intermediate state, and the phase change of the intermediate state is smaller than the phase change of the on state. A first emission direction of a first emitted light in the on state, a second emission direction of a second emitted light in the off state, and a third emission direction of a third emitted light in the intermediate state are different from each other.