Display device having front illuminator with turning features
First Claim
1. A display device comprising:
- a substrate having front and rear sides and a plurality of edges between the front and rear sides;
a plurality of display elements on the rear side of the substrate and supported by the substrate;
a plurality of turning features on the front side of the substrate;
a diffuser on the front side of the substrate between the turning features and the substrate; and
a light source configured to inject light into the substrate through at least one edge of the substrate.
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Accused Products
Abstract
In various embodiments described herein, a display device includes a front illumination device that comprises a light guide disposed forward of an array of display elements, such as an array of interferometric modulators, to distribute light across the array of display elements. The light guide panel may include a turning layer to deliver uniform illumination from a light source to the array of display elements. For many portable display applications, the light guide panel comprises the substrate used in fabricating the display elements. The light guide panel may include additional films as well. The light guide panel, for example, may include a diffuser and/or an optical isolation layer to further enhance the optical imaging characteristics of the display.
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Citations
23 Claims
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1. A display device comprising:
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a substrate having front and rear sides and a plurality of edges between the front and rear sides; a plurality of display elements on the rear side of the substrate and supported by the substrate; a plurality of turning features on the front side of the substrate;
a diffuser on the front side of the substrate between the turning features and the substrate; anda light source configured to inject light into the substrate through at least one edge of the substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A display device comprising:
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a substrate having front and rear sides and a plurality of edges between the front and rear sides; a plurality of display elements on the rear side of the substrate, wherein the plurality of display elements is supported by the substrate; a plurality of turning features on the front side of the substrate; a diffuser between the substrate and the plurality of display elements; and a light source configured to inject light into the substrate through at least one edge of the substrate.
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22. A display device comprising:
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a substrate having front and rear sides; a plurality of display elements on the rear side of the substrate, the plurality of display elements being supported by the substrate; a plurality of turning features on the rear side of the substrate between the substrate and the plurality of display elements; a diffuser on the rear side of the substrate between the turning features and the plurality of display elements, and a light source configured to inject light into the substrate through at least one edge of the substrate.
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23. A display device comprising:
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a substrate having front and rear sides; a plurality of display elements on the rear side of the substrate; a plurality of turning features on the rear side of the substrate between the substrate and the plurality of display elements; an optical isolation layer on the rear side of the substrate between the turning features and the plurality of display elements, and a light source configured to inject light into the substrate through at least one edge of the substrate.
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Specification