Touch panel
First Claim
1. A touch panel, comprising:
- a light-transmissive upper substrate having an upper conductive layer formed at a lower face thereof;
a light-transmissive lower substrate having a lower conductive layer formed at a top face thereof, the lower conductive layer facing to the upper conductive layer with a predetermined space in between;
an upper wave plate formed at a top face of the upper substrate;
a polarizing plate formed at a top face of the upper wave plate;
a lower wave plate formed at a lower face of the lower substrate; and
a first cover layer formed at a lower face of the lower wave plate.
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Accused Products
Abstract
A touch panel including a light-transmissive upper substrate, a light-transmissive lower substrate, an upper wave plate, a polarizing plate, a lower wave plate, and a first cover layer. An upper conductive layer is formed at a lower face of the upper substrate, and a lower conductive layer is formed at a top face of the lower substrate. This lower conductive layer is formed facing the upper conductive layer with a predetermined space in between. The upper wave plate is formed at a top face of the upper substrate. The polarizing plate is formed at a top face of the upper wave plate. The lower wave plate is formed at a lower face of the lower substrate. The first cover layer is formed at a lower face of the lower wave plate. This structure offers a touch panel which is resistant to damage to the lower wave plate and provides good viewability.
7 Citations
2 Claims
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1. A touch panel, comprising:
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a light-transmissive upper substrate having an upper conductive layer formed at a lower face thereof;
a light-transmissive lower substrate having a lower conductive layer formed at a top face thereof, the lower conductive layer facing to the upper conductive layer with a predetermined space in between;
an upper wave plate formed at a top face of the upper substrate;
a polarizing plate formed at a top face of the upper wave plate;
a lower wave plate formed at a lower face of the lower substrate; and
a first cover layer formed at a lower face of the lower wave plate. - View Dependent Claims (2)
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Specification
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- Resources
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Current AssigneePanasonic Corporation (Panasonic Holdings Corporation)
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Original AssigneePanasonic Corporation (Panasonic Holdings Corporation)
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InventorsMatsumoto, Kenichi, Tanabe, Koji, Fujii, Shoji
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Application NumberUS11/508,434Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current345/176CPC Class CodesG02F 1/13338 Input devices, e.g. touch p...G02F 1/133638 Waveplates, i.e. plates wit...
