Method and device to enhance the readability of a liquid crystal display through polarized lenses
First Claim
Patent Images
1. An LCD system comprising:
- an LCD with a polarizing layer;
an optical film disposed above said polarizing layer so as to substantially prevent viewing of a blacked out condition of said LCD when viewed by a user through polarized sunglasses.
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Abstract
An optical film is placed over a liquid crystal display to manipulate the polarized light exiting the top polarizing layer of the display such that the light is less likely to become blocked out by the polarized sunglasses of a user viewing the device. The manipulation may include retarding the axis of the light or diffusing the light.
182 Citations
28 Claims
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1. An LCD system comprising:
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an LCD with a polarizing layer;
an optical film disposed above said polarizing layer so as to substantially prevent viewing of a blacked out condition of said LCD when viewed by a user through polarized sunglasses. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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- 16. A method of improving the visibility of an LCD by a user wearing polarized sunglasses comprising disposing an optical film above a polarizing layer of the LCD so as to substantially prevent viewing a blacked out condition by said user.
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22. An LCD system comprising:
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an LCD having a polarizing layer disposed between liquid crystal and a user, the polarizing layer causing light viewed by the user to be oriented along a polarization axis;
an optical film disposed between the polarizing layer and the user such that the oriented light passing through the optical film from the polarizing layer is manipulated such that at least a portion of the light is no longer oriented along the polarization axis, thereby preventing the user from being unable to see the light when wearing vertically polarized sunglasses. - View Dependent Claims (23)
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24. An LCD comprising:
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a bottom polarizing plate having an axis of polarization that is substantially parallel to an edge of the bottom polarizing plate;
a top polarizing plate having an axis of polarization that is substantially parallel to an edge of the top polarizing plate;
liquid crystal disposed between the top and bottom polarizing plates;
a set of electrodes constructed and arranged to generate an electrical potential across the liquid crystal;
a retardation layer disposed above the top polarizing plate.
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25. A method of transmitting light in a liquid crystal display comprising:
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allowing light to propagate through a liquid crystal array in said display;
directing said light from said liquid crystal array towards a human viewer;
polarizing said light prior to said light reaching said human viewer;
retarding said polarized light prior to said light reaching said human viewer such that a substantial portion of said light is visable to said viewer at all times in the event said viewer is wearing a polarized lens. - View Dependent Claims (26, 27, 28)
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Specification