Electro-optic element with high double image ratio
First Claim
1. A variable transmittance electro-optic assembly, comprising:
- a first partially reflective, partially transmissive substrate defining a first surface and a second surface;
a second partially reflective, partially transmissive substrate defining a third surface and a fourth surface, wherein the first substrate and the second substrate are configured to be held in a parallel spaced apart relationship and sealed about a perimeter of the first and second substrates;
an electro-optic material positioned between the second surface and the third surface, wherein the electro-optic assembly includes a principle transflector having a transflector coating on at least one of first and second surfaces, wherein the principle transflector includes narrow reflectance bands corresponding to narrow display light output bands; and
low reflectance coatings disposed on secondary surfaces of said variable transmittance electro-optic assembly, such that the electro-optic assembly has a high double image characteristic defined by a ratio of a reflectance of the transflector coating to a net reflectance of at least one of the secondary surfaces, and further wherein the ratio is greater than 50.
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Accused Products
Abstract
A variable transmittance electro-optic assembly includes a first partially reflective, partially transmissive substrate defining first and second surfaces. A second partially reflective, partially transmissive substrate defines a third surface and a fourth surface. The first substrate and the second substrate are configured to be held in a parallel spaced apart relationship and sealed about a perimeter of the first and second substrates. An electro-optic material is positioned between the second surface and the third surface. The electro-optic assembly includes a principle transflector having a transflector coating on at least one of first and second surfaces. Low reflectance coatings are disposed on secondary surfaces of the variable transmittance electro-optic assembly. The electro-optic assembly has a high double image characteristic defined by a ratio of a reflectance of the transflector coating to a net reflectance of at least one of the secondary surfaces, and further wherein the ratio is greater than 50.
10 Citations
19 Claims
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1. A variable transmittance electro-optic assembly, comprising:
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a first partially reflective, partially transmissive substrate defining a first surface and a second surface; a second partially reflective, partially transmissive substrate defining a third surface and a fourth surface, wherein the first substrate and the second substrate are configured to be held in a parallel spaced apart relationship and sealed about a perimeter of the first and second substrates; an electro-optic material positioned between the second surface and the third surface, wherein the electro-optic assembly includes a principle transflector having a transflector coating on at least one of first and second surfaces, wherein the principle transflector includes narrow reflectance bands corresponding to narrow display light output bands; and low reflectance coatings disposed on secondary surfaces of said variable transmittance electro-optic assembly, such that the electro-optic assembly has a high double image characteristic defined by a ratio of a reflectance of the transflector coating to a net reflectance of at least one of the secondary surfaces, and further wherein the ratio is greater than 50. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A variable transmittance electro-optic assembly, comprising:
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a first partially reflective, partially transmissive substrate defining a first surface and a second surface; a second partially reflective, partially transmissive substrate defining a third surface and a fourth surface, wherein the first substrate and the second substrate are configured to be held in a parallel spaced apart relationship and sealed about a perimeter of the first and second substrates; an electro-optic material positioned between the second surface and the third surface; a principle fixed transflector including a transflector coating disposed on at least one of the first and second surfaces, wherein the principle fixed transflector is configured such that a reflectance of p polarized light is angle stabilized; and low reflectance coatings disposed on secondary surfaces of said variable transmittance electro-optic assembly, and configured for p polarized light such that the electro-optic assembly has a high double image characteristic defined by a ratio of the reflectance of the transflector coating to a net reflectance of at least one of the secondary surfaces, and further wherein the ratio is greater than 100, wherein the reflectance is measured in view of at least one of eye weighted CIE Y, an average over display wavelength range, a weighted average over display wavelength range, and a reflectance of narrow band reflectors.
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Specification