Switchable type touch display device and method of driving the same

A switchable type touch display device, comprising:

• a display panel displaying an image;
• a touch polarization control panel over the display panel, wherein the touch polarization control panel comprises:
• first and second touch polarization control substrates facing and spaced apart from each other;
• a first electrode on an inner surface of the first touch polarization control substrate, the first electrode having a shape of a plurality of bars parallel to and spaced apart from each other;
• a second electrode on an inner surface of the second touch polarization control substrate, the second electrode having a shape of a plurality of bars parallel to and spaced apart from each other, and the second electrode crossing the first electrode;
• and
• a polarization control liquid crystal layer between the first and second touch polarization control substrates, wherein light from the display panel has a retardation of one of λ/2 and 0 while passing through the polarization control liquid crystal layer according to voltages applied to the first and second electrodes;
• and
• a lens panel over the touch polarization control panel, wherein the lens panel refracts or straightly transmits a light passing through the touch polarization control panel according to a polarization state of the light, wherein the lens panel comprises:
• first and second lens substrates facing and spaced apart from each other;
• and
• a lens liquid crystal layer between the first and second lens substrates,
• wherein the second lens substrate includes a plurality of concave portions each having a half cylindrical shape on an inner surface thereof,
• wherein a long axis of a liquid crystal molecule of the lens liquid crystal layer is perpendicular to an axis of the half cylindrical shape, and
• wherein a refractive index of the second lens substrate is the same as an ordinary refractive index of the liquid crystal molecule of the lens liquid crystal layer.