Color conversion with solid matrix films

• US 10,533,091 B2
• Filed: 08/31/2017
• Issued: 01/14/2020
• Est. Priority Date: 11/16/2015
• Status: Active Grant

• Current Assignee: Moleculed Ltd.
• Original Assignee: StoreDot Ltd.
• Inventors: Kuks, Evgenia Liel (Jeny), Schwarz, Rony, Sella, Eran, Szwarcman, Daniel
• Primary Examiner(s): Mauro, John M
• Application Number:
  US15/691,776
• Publication Number:
  US 20180037738A1
• Time in Patent Office: 866 Days
• CPC Class Codes: C09B 11/22 containing OH groups bound to an aryl nucleus and their ethers and esters
• CPC Class Codes: C09B 11/24 Phthaleins containing amino groups ; Phthalanes; Fluoranes; Phthalides; Rhodamine dyes; Phthaleins having heterocyclic aryl rings; Lactone or lactame forms of triarylmethane dyes
• CPC Class Codes: C09B 69/103 containing a diaryl- or triarylmethane dye
• CPC Class Codes: G03F 7/0007 Filters, e.g. additive colour filters; Components for display devices
• CPC Class Codes: G03F 7/105 having substances, e.g. indicators, for forming visible images

Abstract

This invention is directed to photoluminescent compounds based on rhodamine dyes with green or red emission and uses thereof for photoluminescence based devices.

Claims

1. A red-fluorescent rhodamine based fluorescent compound represented by the structure of formula (I):

2. The fluorescent compound of claim 1, wherein said compound is represented by the structure of formula (II):

3. The fluorescent compound of claim 1, wherein said compound is represented by the structure of formula (III):

4. The fluorescent compound of claim 1, wherein said compound is represented by the structure of formula (IV):

5. The fluorescent compound of claim 1, wherein said compound is represented by the structure of formula (V):

6. The fluorescent compound of claim 1, wherein said compound is represented by the structure of formula 1-11, 20 or 23-26:

7. The fluorescent compound of claim 1, wherein said compound is represented by the structure of formula:

8. The fluorescent compound of claim 1, wherein said compound is represented by the structure of formula: