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. 26, 2009
Filed:
Sep. 22, 2006
Toshinori Hasegawa, Yokohama, JP;
Hiroshi Matsuda, Isehara, JP;
Masahiro Okuda, Sagamihara, JP;
Masataka Yashima, Tokyo, JP;
Koichi Fukuda, Tokyo, JP;
Nobutaka Mizuno, Tokyo, JP;
Toshinori Hasegawa, Yokohama, JP;
Hiroshi Matsuda, Isehara, JP;
Masahiro Okuda, Sagamihara, JP;
Masataka Yashima, Tokyo, JP;
Koichi Fukuda, Tokyo, JP;
Nobutaka Mizuno, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
There is provided a display device which quenches ambient light by using only an optical interference effect without additionally using an optical filter such as a color filter, and can provide good visibility out of doors in the daylight. The display device includes a plurality of organic EL elements each having a light extraction electrode, a reflective electrode, and a plurality of organic compound layers disposed between the electrodes, wherein the plurality of organic EL elements include at least organic EL elements which emit a red light, a green light, and a blue light, respectively; a layer comprised of a material having anomalous dispersion is disposed at a location which is on a light extraction side with respect to the reflective electrode in each of the plurality of organic EL elements; and an ambient light reflectance of the display device shows a minimal in a region of 535 nm or more and 575 nm or less.