Touch panels and display devices having touch panels

Abstract

A display device including a touch panel arranged on a display panel, the touch panel including at least one phase retardation layer, a polarization plate arranged on the at least one phase retardation layer, a touch sensing structure including at least one sensing pattern arranged directly on at least one of at least one face of the phase retardation layer and at least one face of the polarization plate, an adhesion layer arranged on the polarization plate and a window arranged on the adhesion layer.

1 . A touch panel, comprising:
 at least one phase retardation layer;   a polarization plate arranged on the at least one phase retardation layer;   a touch sensing structure including a first sensing pattern distinguished from a second sensing pattern, at least one of the first and the second sensing patterns is arranged directly on at least one of at least one face of the phase retardation layer and at least one face of the polarization plate;   an adhesion layer arranged on the polarization plate; and   a window arranged on the adhesion layer.   
     
     
         2 . (canceled) 
     
     
         3 . The touch panel of  claim 1 , wherein the first sensing pattern is arranged directly on a bottom face of the phase retardation layer; and
 the second sensing pattern is arranged directly on an upper face of the phase retardation layer, wherein the first and the second sensing patterns respectively extend along directions perpendicular to each other, and the phase retardation layer includes a λ/4 phase retardation film.   
     
     
         4 - 5 . (canceled) 
     
     
         6 . The touch panel of  claim 1 , wherein the first sensing pattern is arranged directly on an upper face of the phase retardation layer; and the second sensing pattern is arranged directly on an upper face of the polarization plate. 
     
     
         7 . The touch panel of  claim 1 , wherein the first sensing pattern is arranged directly on a bottom face of the phase retardation layer; and the second sensing pattern is arranged directly on an upper face of the polarization plate. 
     
     
         8 . A touch panel, comprising:
 at least one phase retardation layer;   a polarization plate arranged on the at least one phase retardation layer;   a touch sensing structure including a first sensing pattern distinguished from a second sensing pattern, at least one of the first and the second sensing patterns is arranged directly on at least one of at least one face of the phase retardation layer and at least one face of the polarization plate;   an adhesion layer arranged on the polarization plate; and   a window arranged on the adhesion layer, wherein the at least one phase retardation layer comprises:   a first phase retardation layer; and   a second phase retardation layer arranged on the first phase retardation layer.   
     
     
         9 - 10 . (canceled) 
     
     
         11 . The touch panel of  claim 8 , wherein the first sensing pattern is arranged directly on a bottom face of the first phase retardation layer; and the second sensing pattern is arranged directly on a bottom face of the second phase retardation layer. 
     
     
         12 . (canceled) 
     
     
         13 . The touch panel of  claim 8 , wherein the first sensing pattern is arranged directly on an upper face of the first phase retardation layer; and the second sensing pattern is arranged directly on a bottom face of the second phase retardation layer. 
     
     
         14 - 16 . (canceled) 
     
     
         17 . The touch panel of  claim 8 , wherein the first sensing pattern is arranged directly on an upper face of the second phase retardation layer; and the second sensing pattern is arranged directly on an upper face of the polarization plate. 
     
     
         18 . The touch panel of  claim 8 , wherein the first sensing pattern is arranged directly on a bottom face of the second phase retardation layer; and the second sensing pattern is arranged directly on an upper face of the polarization plate. 
     
     
         19 . The touch panel of  claim 8 , wherein the first sensing pattern is arranged directly on a bottom face of the first phase retardation layer; and the second sensing pattern is arranged directly on an upper face of the polarization plate. 
     
     
         20 - 25 . (canceled) 
     
     
         26 . A display device comprising a touch panel arranged on a display panel, the touch panel comprising:
 at least one phase retardation layer;   a polarization plate arranged on the at least one phase retardation layer;   a touch sensing structure including a first sensing pattern distinguished from a second sensing pattern, at least one of the first and the second sensing patterns is arranged directly on a face of at least one of the polarization plate and the at least one phase retardation layer;   an adhesion layer arranged on the polarization plate; and   a window arranged on the adhesion layer.   
     
     
         27 . (canceled) 
     
     
         28 . The display device of  claim 26 , wherein the at least one phase retardation layer comprises:
 a first phase retardation layer having a λ/4 phase retardation film; and   a second phase retardation layer having a λ/2 phase retardation film, the second phase retardation layer being arranged on the first phase retardation layer, wherein the first sensing pattern is arranged directly on a bottom face of the first phase retardation layer; and the second sensing pattern is arranged directly on an upper face of the first phase retardation layer.   
     
     
         29 - 34 . (canceled) 
     
     
         35 . The display device of  claim 26 , wherein the first sensing pattern is arranged directly on an upper face of the phase retardation layer; and the second sensing pattern is arranged directly on an upper face of the polarization plate. 
     
     
         36 . The display device of  claim 26 , wherein the first sensing pattern is arranged directly on a bottom face of the phase retardation layer; and the second sensing pattern is arranged directly on a bottom face of the polarization plate. 
     
     
         37 . (canceled)