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:
Oct. 13, 2020
Filed:
Apr. 09, 2019
Sharp Kabushiki Kaisha, Sakai, Osaka, JP;
SHARP KABUSHIKI KAISHA, Sakai, Osaka, JP;
Abstract
The present invention provides a liquid crystal display device which can prevent a camera image from being adversely affected by the birefringence of external polarized light which enters a camera through the liquid crystal layer. In a liquid crystal display device (A), light to enter a camera () passes through a part of a liquid crystal panel (A). The liquid crystal panel (A) is configured so that the first part of the liquid crystal layer (), which first part is located in the camera light transmissive region (S) allowing the light to enter the camerato pass therethrough, has a retardation Rrepresented by the following formula: R=mλ (where (i) m is a positive integer and (ii) λ is a wavelength of the light passing through the liquid crystal layer). A second part of the liquid crystal layer (), which second part is located in a non-camera light transmissive region (S) excluding the camera light transmissive region (S), has a retardation Rrepresented by the following formula: R/2(2k+1) (where k is 0 or an integer).