# US 10,871,671 B2 · Light emission reducing compounds for electronic devices

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- Number: US 10,871,671 B2
- Document ID: US10871671B2
- Status: Granted
- Kind: B2
- Application number: 16/855,497
- Filed: 2020-04-22
- Published: 2020-08-06
- Granted: 2020-12-22
- Earliest claimed: 2014-05-23
- Assignees: Eyesafe Inc.
- Applicants: Eyesafe, LLC
- Inventors: Justin Barrett; Steven D. Moe; Bonnie G. Simmons; Justin Tolle
- Web page: https://patentgrep.com/patent/US10871671B2

## CPC

- G02F 1/133509: {Filters, e.g. light shielding masks}
- C09B 47/04: Phthalocyanines {abbreviation: Pc}
- C09J 7/20: characterised by their carriers
- G02B 1/04: made of organic materials, e.g. plastics (G02B1/08 takes precedence)
- G02B 1/14: Protective coatings, e.g. hard coatings
- G02B 5/003: {Light absorbing elements}
- G02B 5/205: {Neutral density filters}
- G02B 5/208: {for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation}
- G02B 5/223: {containing organic substances, e.g. dyes, inks or pigments}
- G02F 1/133562: {on the viewer side}
- C09J 2301/302: the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
- G02F 1/133514: {Colour filters}
- G02F 1/133528: {Polarisers}
- G02F 2201/083: infrared absorbing
- G02F 2201/086: UV absorbing
- G02F 2201/50: Protective arrangements
- G02F 2202/022: polymeric
- G02F 2202/04: dye
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- C09B: ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES {, e.g. PIGMENTS}; MORDANTS; LAKES (fermentation or enzyme using processes to synthesise a desired chemical compound C12P)
- C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H)
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

A light-absorbing, neutral density filter for an electronic device display. More specifically, a light-absorbing, neutral density filter applied as a shield, protective film, or protective coating layer for an electronic device display that blocks ultraviolet light, high energy visible light, and at least a portion of blue light. The neutral density filter comprises a polymer substrate and an absorbing agent.

## Claims

### Claim 1

An electronic display device comprising:
a light-emitting display device; and
a filter comprising a polymer substrate,
wherein the filter allows transmission at least 78% of the energy emitted by the light-emitting device over a wavelength range of about 400 nm to about 520 nm, and
wherein the filter allows transmission of no more than 79% of energy emitted by the light-emitting device over a wavelength range of from about 415 nm to about 455 nm and transmission of no more than 45% of energy emitted by the light-emitting device over a wavelength range of from about 625 nm to about 740 nm.

### Claim 2 (depends on 1)

An electronic display device according to claim 1, wherein the light-emitting display device comprises a light-emitting diode (LED), a backlit LED, or a liquid crystal device (LCD).

### Claim 3 (depends on 1)

An electronic display device according to claim 1, wherein the filter allows transmission of no more than 82% of energy emitted by the light-emitting display device over a wavelength range of from about 565 nm to about 580 nm.

### Claim 4 (depends on 1)

An electronic display device according to claim 1, wherein the device further comprises a capacity grid layer.

### Claim 5 (depends on 1)

An electronic display device according to claim 1, wherein the filter comprises a dye or a pigment.

### Claim 6 (depends on 1)

An electronic display device according to claim 1, wherein the polymer substrate is selected from polycarbonates, PVCs, epoxies, polyesters, polyethylenes, polyamides, and combinations thereof.

### Claim 7

An electronic display device comprising:
a light-emitting display device; and
a filter comprising a polymer substrate,
wherein the filter allows transmission of no more than about 1% of energy emitted by the light-emitting device over a wavelength range of from about 380 nm to about 400 nm, and at least 66% of the energy emitted by the light-emitting device over a wavelength range of from about 400 nm to about 520 nm, and
wherein the filter allows transmission of no more than 64% of energy emitted by the light-emitting device over a wavelength range of from about 415 nm to about 455 nm and transmission of no more than 52% of energy emitted by the light-emitting display device over a wavelength range of from about 625 nm to about 740 nm.

### Claim 8 (depends on 7)

An electronic display device according to claim 7, wherein the light-emitting display device comprises a light-emitting diode (LED), a backlit LED, or a liquid crystal device (LCD).

### Claim 9 (depends on 7)

An electronic display device according to claim 7, wherein the filter allows transmission of no more than 68% of energy emitted by the light-emitting display device over a wavelength range of from about 565 nm to about 580 nm.

### Claim 10 (depends on 7)

An electronic display device according to claim 7, wherein the device further comprises a capacity grid layer.

### Claim 11 (depends on 7)

An electronic display device according to claim 7, wherein the filter comprises a dye or a pigment.

### Claim 12 (depends on 7)

An electronic display device according to claim 7, wherein the polymer substrate is selected from polycarbonates, PVCs, epoxies, polyesters, polyethylenes, polyamides, and combinations thereof.