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:
Jan. 24, 2023
Filed:
Jun. 22, 2018
Sakai Display Products Corporation, Sakai, JP;
SAKAI DISPLAY PRODUCTS CORPORATION, Sakai, JP;
Abstract
A liquid crystal display device () according to the present invention is provided with a liquid crystal display panel () and a backlight device () which emits light toward the back surface () of the liquid crystal display panel. The backlight device comprises: an LED substrate () that has a front surface () on which a plurality of LED chips () are arranged so as to emit excitation light toward the back surface of the liquid crystal display panel; a phosphor layer () which contains a phosphor () that emits fluorescent light upon reception of the excitation light; a wavelength selective reflection layer () which is arranged between the phosphor layer and the LED substrate, and wherein the transmittance of the excitation light is higher than the transmittance of the fluorescent light; and an optical layer laminate () which is arranged on the liquid crystal display panel side of the phosphor layer. The optical layer laminate, the phosphor layer and the wavelength selective reflection layer are affixed to the back surface of the liquid crystal display panel in an integrated manner, with a plurality of adhesive layers including a first adhesive layer () being interposed therebetween.