ANISOTROPIC OPTICAL COVER FOR TOUCH PANEL DISPLAY
First Claim
1. A computing device comprising:
- a display module;
a plurality of optical sensors embedded within the display module; and
an optically anisotropic cover arranged over the display module.
1 Assignment
0 Petitions
Accused Products
Abstract
A touch panel display configured to improve touch panel detection for sensor panels embedded in display modules. Touch panel detection can be improved by arranging an optically anisotropic cover over a display module within which an optical sensor panel is embedded. Since the optically anisotropic cover comprises light-guiding channels through which light is guided by total internal reflection, the cover can effectively shift the sensor plane from an outer surface of the cover, near the location of an object to be detected, to an inner surface of the cover, near the location of the sensor panel. In additional, the optically anisotropic cover can effectively shift the image plane from the inner surface of the cover, near the display module, to the outer surface of the cover, near the viewing surface.
39 Citations
21 Claims
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1. A computing device comprising:
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a display module; a plurality of optical sensors embedded within the display module; and an optically anisotropic cover arranged over the display module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method, comprising:
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covering a display module with an optically anisotropic layer; and detecting an object in contact with or in proximity to an outer surface of the layer with a sensor embedded in a display module. - View Dependent Claims (10, 11, 12, 13)
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14. A liquid crystal display comprising:
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a first polarizer and a second polarizer; a sensor panel and liquid crystal arranged between the first polarizer and the second polarizer; and a cover arranged over one of the polarizers and comprising light-guiding channels through which light is guided by total internal reflection. - View Dependent Claims (15, 16, 17, 18)
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19. A mobile telephone comprising:
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a display module; a plurality of optical sensors embedded within the display module; and an optically anisotropic cover arranged over the display module.
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20. A portable media player comprising:
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a display module; a plurality of optical sensors embedded within the display module; and an optically anisotropic cover arranged over the display module.
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21. A personal computer comprising:
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a display module; a plurality of optical sensors embedded within the display module; and an optically anisotropic cover arranged over the display module.
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Specification