Light emission reducing compounds for electronic devices
AssigneeEyesafe Inc.
InventorsJustin Barrett, Bonnie G. Simmons, Derek Harris
Life of this patent
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Abstract
A light-filtering film for a screen of a device comprising a polymer substrate. A first absorbing compound combined with the polymer substrate, the first absorbing compound absorbing blue light in a blue notch band having a full-width half-maximum of not greater than about 50 nm. A second absorbing compound combined with the polymer substrate, the second absorbing compound absorbing green light in a green notch, wherein the first absorbing compound comprises an absorption that has a maximum absorbance peak between about 420 nm and about 445 nm, and wherein the second absorbing compound has a maximum absorbance peak between about 540 nm and 610 nm.
Claims19
A light-filtering film for a screen of a device comprising:
- a polymer substrate;
- a first absorbing compound combined with the polymer substrate, the first absorbing compound absorbing blue light in a blue notch band having a full-width half-maximum of not greater than about 50 nm;
- and
- a second absorbing compound combined with the polymer substrate, the second absorbing compound absorbing green light in a green notch,
- wherein the first absorbing compound has a maximum absorbance peak at approximately 455 nm, and
- wherein the second absorbing compound has a maximum absorbance peak between about 540 nm and 610 nm and absorbs at least 20% of photosensitivity light.
A method for light-filtering for a screen of a device comprising:
- having a film on a light emitting display, wherein the film reduces transmissivity by:
- having a polymer substrate and a first absorbing compound combined with the polymer substrate;
- absorbing, by the first absorbing compound, blue light in a blue notch band having a full-width half-maximum of not greater than about 50 nm;
- and
- absorbing green light in a green notch by a second absorbing compound combined with the polymer substrate,
- wherein the first absorbing compound has a maximum absorbance peak at approximately 455 nm and absorbs approximately 30-40% of high energy violet light, and
- wherein the second absorbing compound has a maximum absorbance peak between about 540 nm and 610 nm and absorbs at least 20% of photosensitivity light.
A light-filtering film for a screen of a device comprising:
- a polymer substrate;
- a first absorbing compound combined with the polymer substrate, wherein the first absorbing compound has a maximum absorbance peak at approximately 455 nm and absorbs approximately 30-40% of high energy violet light, and
- a second absorbing compound combined with the polymer substrate, the second absorbing compound absorbing green light, wherein the green range of light comprises a range between about 495 nm and about 570 nm and the second absorbing compound absorbs about 10% more light than between 460 and 495 nm, wherein the second absorbing compound continues light absorption from the green light range into the yellow light range between about 565 nanometers and about 590 nanometers and absorbs about 5% more light than the maximum green light absorption.
A light-filtering film for a screen of a device comprising:
- a polymer substrate;
- a first absorbing compound combined with the polymer substrate, the first absorbing compound absorbing blue light in a blue notch band having a full-width half-maximum of not greater than about 50 nm;
- and
- a second absorbing compound combined with the polymer substrate, the second absorbing compound absorbing light in a yellow-green band,
- wherein the first absorbing compound comprises an absorption peak at approximately 455 nm, and
- wherein the second absorbing compound comprises an absorption that has a decrease of light transmission by at least 5% within the range of about 565 nm and 590 nm.
Dependencies are inferred from the claim text.