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:
Sep. 25, 2018
Filed:
Oct. 13, 2015
Dai Nippon Printing Co., Ltd., Shinjuku-ku, Tokyo, JP;
Nichia Corporation, Anan-shi, Tokushima, JP;
Kazuyuki Hino, Tokyo, JP;
Seiji Tawaraya, Tokyo, JP;
Hiroto Itoi, Anan, JP;
Atsushi Yamamoto, Komatsushima, JP;
Takeshi Morikawa, Tokushima, JP;
DAI NIPPON PRINTING CO., LTD., Tokyo, JP;
NICHIA CORPORATION, Anan-shi, JP;
Abstract
An image display module includes a light emitting device including a nitride semiconductor light-emitting element, as a light source, having an emission peak wavelength in a wavelength range of 240 nm to 560 nm, an Mn-activated red fluorescent material having a maximum excitation wavelength in the wavelength range, an emission peak wavelength of 610 nm to 670 nm, and a half bandwidth of the emission spectrum of 30 nm or less, and a green fluorescent material having an emission peak wavelength in a wavelength range of 510 nm to 550 nm; and a color filter having a blue pixel wherein the difference between the maximum and the minimum value of transmittance at a wavelength range of 420 nm to 460 nm of the spectral transmittance curve is 4% or less.