Registered reflective element for a brightness enhanced TIR display
First Claim
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1. A totally internally reflective display with a brightness enhancing structure, the display comprising:
- a transparent sheet comprising a plurality of transparent convex protrusions on the inward side of said sheet, each of the plurality of transparent convex protrusions further comprising a dark center;
a backplane electrode; and
a reflective element interposed between the convex protrusions and the backplane electrode, the reflective element aligned below the dark center of each convex protrusion to prevent light rays passing through said pupils from not substantially being recycled and reflected back to the display;
wherein the convex protrusions are formed integrally with the transparent sheet.
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Abstract
The brightness of a TIR-based display is enhanced with a registered reflective element by recycling and reflecting light that passes through the dark pupil region of each hemi-spherical protrusion in the hemi-spherical surface back to the viewer. A method to fabricate a brightness enhanced TIR display comprising an apertured membrane with a thin conductive reflective metal layer facing and registered with the pupils of the hemi-spherical surface.
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Citations
8 Claims
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1. A totally internally reflective display with a brightness enhancing structure, the display comprising:
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a transparent sheet comprising a plurality of transparent convex protrusions on the inward side of said sheet, each of the plurality of transparent convex protrusions further comprising a dark center; a backplane electrode; and a reflective element interposed between the convex protrusions and the backplane electrode, the reflective element aligned below the dark center of each convex protrusion to prevent light rays passing through said pupils from not substantially being recycled and reflected back to the display; wherein the convex protrusions are formed integrally with the transparent sheet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification