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. 03, 2024
Filed:
Dec. 15, 2021
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Wataru Kubo, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1514 (2019.01); H04N 23/84 (2023.01); H04N 25/11 (2023.01);
U.S. Cl.
CPC ...
G02F 1/1514 (2019.01); H04N 23/84 (2023.01); H04N 25/11 (2023.01); G02F 2001/15145 (2019.01);
Abstract
The types and concentrations of multiple anodic electrochromic compounds are selected in such a manner that RGis 1.37 or less, in which RGis a maximum value among ratios between RGB signal ratios in the transmission state of an electrochromic device and in colored states of the anodic electrochromic compounds, the RGB signal ratios are obtained from T(λ) and the sensitivity of a photodetector, and T(λ) is a normalized variable transmittance obtained by a combination of absorptions of the anodic electrochromic compounds.