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:
May. 14, 2019
Filed:
Mar. 31, 2017
Panasonic Liquid Crystal Display Co., Ltd., Himeji-shi, Hyogo, JP;
Kazuhiko Tsuda, Hyogo, JP;
Katsuji Tanaka, Hyogo, JP;
Panasonic Liquid Crystal Display Co., Ltd., Hyogo, JP;
Abstract
A device capable of switching between an image display state and a mirror state is provided. The device includes an image display portion and a mirror portion. The image display portion emits image light for displaying a desired image and includes a display panel. The mirror portion is superposed on the image display portion and can switch between an image transmittance state for transmitting image light and a mirror state for reflecting outside light. The mirror portion includes a liquid crystal layer disposed between a first glass substrate and a second glass substrate and a reflective polarization layer adhered to the second glass substrate. A reflective enhancement layer separate from the reflective polarization layer is disposed between the display panel and the liquid crystal layer and has a refractive index that is different from the refractive index of the second glass substrate.