Display element having filter material diffused in a substrate of the display element
First Claim
1. A method of forming a display device, the method comprising:
- diffusing a material into a substrate, said material having a different optical property than said substrate; and
forming at least one light modulating element over the substrate, the light modulating element comprising a partially reflective surface and a substantially reflective surface that form an optical cavity, at least one of said reflective surfaces movable with respect to the other to modulate said optical cavity.
3 Assignments
0 Petitions
Accused Products
Abstract
Optical filter functionality is incorporated into a substrate of a display element thereby decreasing the need for a separate thin film filter and, accordingly, reducing a total thickness of a filtered display element. Filter functionality may be provided by any filter material, such as pigment materials, photoluminescent materials, and opaque material, for example. The filter material may be incorporated in the substrate at the time of creating the substrate or may be selectively diffused in the substrate through a process of masking the substrate, exposing the substrate to the filter material, and heating the substrate in order to diffuse the filter material in the substrate.
306 Citations
30 Claims
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1. A method of forming a display device, the method comprising:
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diffusing a material into a substrate, said material having a different optical property than said substrate; and forming at least one light modulating element over the substrate, the light modulating element comprising a partially reflective surface and a substantially reflective surface that form an optical cavity, at least one of said reflective surfaces movable with respect to the other to modulate said optical cavity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method of forming a display device, the method comprising:
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combining a substrate material with a filter material in order to form a mixture; heating the mixture so that the substrate material substantially melts and the filter material is diffused within the melted substrate material; cooling the mixture in order to form a substrate; and forming a plurality of light modulating elements over the substrate, at least one of the light modulating element comprising a partially reflective surface and a substantially reflective surface that form an optical cavity, at least one of said reflective surfaces movable with respect to the other to modulate said optical cavity, the plurality of light modulating elements configured to allow formation of an image on the display device, the display device configured such that the image is viewed through the substrate. - View Dependent Claims (24, 25, 26, 27, 28)
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29. A method of forming an interferometric modulator, the method comprising:
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combining a substrate material with a filter material in order to form a mixture; heating the mixture so that the substrate material substantially melts and the filter material is diffused within the melted substrate material; cooling the mixture in order to form a substrate; and forming at least one light modulating element over the substrate, the light modulating element comprising a partially reflective surface and a substantially reflective surface that form an optical cavity, at least one of said reflective surfaces movable with respect to the other to modulate said optical cavity, the optical cavity disposed relative to the substrate such that the partially reflective surface is between the substantially reflective surface and the substrate. - View Dependent Claims (30)
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Specification