Reflection resistant touch screens
First Claim
Patent Images
1. A touch panel comprising:
- (a) a flexible polarizing element;
(b) a flexible, substantially non-birefringent support element having a first surface bonded to said polarizing element and a conductive second surface; and
(c) a substrate having a conductive surface, said conductive surfaces of said substrate and said support element arranged such that deformation of said support element will cause selective contact of said conductive surfaces.
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Accused Products
Abstract
A flexible, non-birefringent cover and a polarizer on the front of a resistive touch panel reduce touch screen image distortion and obscuration resulting from the reflection of ambient light. Reduced reflection of ambient light is also obtained by touch screens of alternative construction incorporating combinations anti-reflection panels and polarizers located behind the touch panel.
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Citations
68 Claims
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1. A touch panel comprising:
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(a) a flexible polarizing element;
(b) a flexible, substantially non-birefringent support element having a first surface bonded to said polarizing element and a conductive second surface; and
(c) a substrate having a conductive surface, said conductive surfaces of said substrate and said support element arranged such that deformation of said support element will cause selective contact of said conductive surfaces. - View Dependent Claims (2, 3, 4, 5)
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6. A touch panel comprising:
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(a) a substrate having a conductive surface;
(b) a flexible, substantially non-birefringent cover having a first surface and a conductive second surface, said conductive surfaces of said substrate and said cover arranged such that deformation of said flexible cover will cause selective contact of said conductive surfaces; and
(c) a polarizer supported by said first surface of said cover. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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14. A touch screen comprising:
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(a) a touch panel having a back surface and a glare diffusing front surface; and
(b) a light valve including a polarizer comprising a birefringent carrier layer, said light valve arranged proximate to said touch panel and controlling an intensity of light transmitted through said touch panel.
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15. A touch screen comprising:
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(a) a touch panel having a back surface and a front surface;
(b) a light valve including a polarizer comprising a birefringent carrier layer, said light valve arranged proximate to said touch panel and controlling an intensity of light transmitted through said touch panel; and
(c) a first anti-reflection panel interposed between said light valve and said touch panel. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A touch screen comprising:
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(a) a touch panel having a back surface and a glare diffusing front surface; and
(b) a light valve including a polarizer comprising a substantially non-birefringent carrier layer, said light valve arranged proximate to said touch panel and controlling an intensity of light transmitted through said touch panel.
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30. A touch screen comprising:
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(a) a touch panel having a back surface and a front surface;
(b) a light valve including a polarizer comprising a substantially non-birefringent carrier layer, said light valve arranged proximate to said touch panel and controlling an intensity of light transmitted through said touch panel; and
(c) a first anti-reflection panel interposed between said light valve and said touch panel. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65)
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66. A touch screen comprising:
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(a) a touch panel having a back surface and a front surface;
(b) a light valve including a polarizer comprising a birefringent carrier layer, said light valve arranged proximate to said touch panel and controlling an intensity of light transmitted through said touch panel;
(c) a polarizer interposed between said light valve and said touch panel; and
(d) an anti-reflection panel having a front surface and a back surface, said back surface arranged proximate to said front surface of said touch panel and said front surface comprising a glare diffusing surface. - View Dependent Claims (67, 68)
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Specification