IP Library › Granted Patent US 12,547,027
Granted Patent B2
US 12,547,027 · App. 18/613,774 · Granted Feb 10, 2026

Light emission reducing compounds for electronic devices

Inventors: Justin Barrett (Eden Prairie, MN); Steven D. Moe (Savage, MN); Bonnie G. Simmons (Concord, NH); Justin Tolle (Maple Grove, MN)
Assignee: Eyesafe Inc.
G02F1/133509C09B47/04C09J7/20G02B1/04G02B1/14G02B5/003G02B5/205G02B5/208G02B5/223G02F1/133562C09J2301/302G02F1/133514G02F1/133528G02F2201/083G02F2201/086G02F2201/50G02F2202/022G02F2202/04
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Quick Facts
Patent No.
US 12,547,027
App. No.
18/613,774
Granted
Feb 10, 2026
Kind
B2
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 to an electronic device display or incorporated into the screen layers of a device 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 (41)

1 . A light-filtering film comprising:

a polymer substrate; and

at least one light absorbing compound,

wherein, for light emitted by a display device and transmitted through the light-filtering film,

the film reduces at least 22% of the energy emitted by the light-emitting display device over a wavelength range of from about 400 nm to about 500 nm,

the film allows an average 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,

the film allows an average transmission of at least 74% of energy emitted by the light-emitting display device over a wavelength range of from about 580 nm to about 625 nm, and

the film allows an average transmission of at least 45% of energy emitted by the light-emitting display device over a wavelength range of from about 625 nm to about 740 nm.

2 . The light-filtering film of claim 1 , wherein the light-emitting display device comprises a light-emitting diode (LED), a backlit light-emitting diode, a liquid crystal device (LCD), or an organic light-emitting diode (OLED).

3 . The light-filtering film of claim 1 , wherein the film allows an average transmission of no more than about 1% of the energy emitted by the light-emitting device over a wavelength range of from about 380 nm to about 400 nm.

4 . The light-filtering film of claim 1 , wherein the film allows an average transmission of no more than 84% of energy emitted by the light-emitting device over a wavelength range of from about 520 nm to about 580 nm.

5 . The light-filtering film of claim 1 , wherein the light-emitting display device further comprises a capacity grid layer.

6 . The light-filtering film of claim 1 , wherein the at least one light absorbing compound comprises a dye or a pigment.

7 . The light-filtering film of claim 1 , wherein the film is applicable to eyewear lenses.

8 . The light-filtering film of claim 1 , wherein the film is for placement on an exterior surface of a screen of the light-emitting display device.

9 . The light-filtering film of claim 1 , wherein the film is incorporated into a screen of the light-emitting display device.

10 . A light-filtering film comprising:

a polymer substrate; and

at least one light absorbing compound,

wherein, for light emitted by a display device and transmitted through the light-filtering film,

the film reduces at least 21% of the energy emitted by the light-emitting display device over a wavelength range of from about 415 nm to about 455 nm,

the film allows an average transmission of at least 82% of energy emitted by the light-emitting display device over a wavelength range of from about 500 nm to about 520 nm,

the film allows an average 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, and

the film allows an average transmission of at least 74% of energy emitted by the light-emitting display device over a wavelength range of from about 580 nm to about 625 nm.

11 . The light-filtering film of claim 10 , wherein the light-emitting display device comprises a light-emitting diode (LED), a backlit light-emitting diode, a liquid crystal device (LCD), or an organic light-emitting diode (OLED).

12 . The light-filtering film of claim 10 , wherein the light-emitting display device further comprises a capacity grid layer.

13 . The light-filtering film of claim 10 , wherein the at least one light absorbing compound comprises a dye or a pigment.

14 . The light-filtering film of claim 10 , wherein the film is applicable to eyewear lenses.

15 . A light-filtering film comprising:

a polymer substrate; and

an absorbing compound,

wherein, for light emitted by a display device and transmitted through the light-filtering film,

the film reduces at least 22% of the energy emitted by the light-emitting display device over a wavelength range of from about 400 nm to about 500 nm,

the film allows an average transmission of energy emitted by the light-emitting display device over a wavelength range of from about 415 nm to about 455 nm that is lower than the average transmission of energy emitted over the wavelength range of from about 400 nm to about 500 nm,

the film allows an average transmission of at least 68% of the energy emitted by the light-emitting display device over a wavelength range of from about 520 nm to about 580 nm, and

the film allows an average 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.

16 . The light-filtering film of claim 15 , wherein the light-emitting display device comprises a light-emitting diode (LED), a backlit light-emitting diode, a liquid crystal device (LCD), or an organic light-emitting diode (OLED).

17 . The light-filtering film of claim 15 , wherein the light-emitting display device further comprises a capacity grid layer.

18 . The light-filtering film of claim 15 , wherein the at least one light absorbing compound comprises a dye or a pigment.

19 . The light-filtering film of claim 15 , wherein the film is applicable to eyewear lenses.

20 . The light-filtering film of claim 15 , wherein the film allows an average transmission at least 64% of the energy emitted by the light-emitting device over a wavelength range of from about 415 nm to about 455 nm.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 22, 2024
From: BARRETT, JUSTIN; MOE, STEVEN D.; SIMMONS, BONNIE G.; TOLLE, JUSTIN
To: EYESAFE INC.
Reel/Frame 066873/0077 →
Continuity (11)
Continuation 17091152 · Nov 6, 2020
Continuation 16855497 · Apr 22, 2020
Continuation 15844109 · Dec 15, 2017
Continuation PCTUS2016037457 · Jun 14, 2016
Continuation 14719604 · May 22, 2015
Provisional Application 62322624 · Apr 14, 2016
Provisional Application 62254871 · Nov 13, 2015
Provisional Application 62255287 · Nov 13, 2015
Provisional Application 62175926 · Jun 15, 2015
Provisional Application 62002412 · May 23, 2014
Related Publication 20240231140A1 · Jul 11, 2024
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