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:
Dec. 04, 2018
Filed:
Feb. 15, 2016
Sharp Kabushiki Kaisha, Sakai, Osaka, JP;
Akira Sakai, Sakai, JP;
Hiroyuki Hakoi, Sakai, JP;
Masahiro Hasegawa, Sakai, JP;
Kiyoshi Minoura, Sakai, JP;
SHARP KABUSHIKI KAISHA, Sakai, Osaka, JP;
Abstract
The present invention provides a mirror display that exhibits non-deteriorated display quality in a display mode and is capable of adjusting the color of reflected light in a mirror mode. The mirror display includes, in the following order from the back surface side: a display device including a polarizing plate; a reflective polarizing plate; a birefringence mode liquid crystal display panel; and an absorptive polarizing plate, the reflective polarizing plate including a transmission axis parallel to the transmission axis of the absorptive polarizing plate, the liquid crystal display panel being capable of switching, in transmission of incident polarized light, between a non-coloring mode of not altering the polarization state of the polarized light and a coloring mode of altering the polarization state of the polarized light, the liquid crystal display panel selecting the coloring mode when the display device is in a non-display state, the liquid crystal display panel in the coloring mode increasing a retardation to a value greater than 275 nm in measurement with light having a wavelength of 550 nm.