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:
Jul. 24, 2014
Sharp Kabushiki Kaisha, Osaka-shi, Osaka, JP;
Akira Sakai, Osaka, JP;
Masahiro Hasegawa, Osaka, JP;
Hiroyuki Hakoi, Osaka, JP;
Hidefumi Yoshida, Osaka, JP;
Shigeaki Mizushima, Osaka, JP;
SHARP KABUSHIKI KAISHA, Sakai, JP;
Abstract
The present invention provides a mirror display that sufficiently prevents a decrease in the screen luminance in the display mode while sufficiently increasing the reflectance in the mirror mode, and also gives excellent production efficiency. The mirror display includes a half mirror plate including at least two half mirror layers; and a display device arranged on the backside of the half mirror plate, the display device including a polarizer, the at least two half mirror layers including at least one reflective polarizer, the transmission axis of the polarizer and the transmission axis of the at least one reflective polarizer being substantially parallel to each other or substantially perpendicular to each other, the mirror display configured to switch a display mode allowing display light to be emitted from the display device and to pass through the half mirror plate and a mirror mode preventing display light from being emitted from the display device, the mirror display exhibiting a sum of the transmittance in the display mode and the reflectance in the mirror mode of 100% or higher.