Display apparatus with corrosion-resistant light directing film
First Claim
1. A display apparatus comprising:
- a light modulating layer;
a polarizer; and
a light directing film, comprising;
a prismatic structure having two sides, one side including saw-tooth formations having tilted surfaces;
a metal layer on the side of the prismatic substrate having the saw-tooth formations;
an inorganic protective layer formed on the metal layer, wherein the inorganic protective layer inhibits molecular transfer to the metal layer; and
a pressure sensitive adhesive layer between the polarizer and the inorganic protective layer;
wherein the display apparatus has a glare angle at which front surface glare is viewed and wherein a tilt angle of the tilted surfaces offsets an optimal viewing angle for the display from the glare angle;
wherein the inorganic protective layer protects the metal layer and balances the color of reflected and transmitted light.
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Abstract
The present invention is a display apparatus that provides protection against damage for a metallic layer. The display apparatus includes a light modulating layer, a polarizer, and a light directing film. The light directing film includes a prismatic structure having two sides, where one side includes saw tooth formations having tilted surfaces and a metal layer on the side of the prismatic substrate having the saw-tooth formations. A tilt angle of the tilted surfaces offsets an optimal viewing angle for the display from a glare angle for the display. In a first embodiment of the invention, the light directing film of the display apparatus further includes an inorganic protective layer formed on the metal layer, wherein the inorganic protective layer inhibits molecular transfer to the metal layer and balances the color of reflected and transmitted light. The light directing film further includes a pressure sensitive adhesive layer between a polarizer and the inorganic protective layer. Alternatively, the light directing film of the display apparatus of the present invention includes a polymer protective layer formed over the metal layer to protect the metal layer from damage. The light directing film also includes a diffuse adhesive layer formed over the polymer layer, attached to the polarizer. The polymer protective layer protects the metal layer from the adhesive layer. The display apparatus may include both the inorganic protective layer and the polymer protective layer, in one embodiment.
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Citations
42 Claims
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1. A display apparatus comprising:
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a light modulating layer;
a polarizer; and
a light directing film, comprising;
a prismatic structure having two sides, one side including saw-tooth formations having tilted surfaces;
a metal layer on the side of the prismatic substrate having the saw-tooth formations;
an inorganic protective layer formed on the metal layer, wherein the inorganic protective layer inhibits molecular transfer to the metal layer; and
a pressure sensitive adhesive layer between the polarizer and the inorganic protective layer;
wherein the display apparatus has a glare angle at which front surface glare is viewed and wherein a tilt angle of the tilted surfaces offsets an optimal viewing angle for the display from the glare angle;
wherein the inorganic protective layer protects the metal layer and balances the color of reflected and transmitted light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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Specification