| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a liquid crystal display device of a touch input system which is low in reflection and high in contrast and visibility. <P>SOLUTION: In the liquid crystal display device of the touch input system, where a liquid display is arranged on the under side of a transparent touch panel, an upper polarizing plate is arranged on the top surface of the transparent touch panel where an upper optical phase differential film which imparts a phase lag of a quarter wavelength to incident light of a central wavelength of a visible region and is equipped with a movable electrode section on the under surface and a lower optical phase differential film which imparts the phase lag of the quarter wavelength to the incident light of the central wavelength of the visible region and is equipped with a stationary electrode section on the top surface are arranged through a space layer, and a lower polarizing plate is arranged on the under surface of the liquid crystal display. A glass substrate having optical anisotropy is disposed between the stationary electrode section and the lower optical phase differential film and the stationary electrode section is directly formed on the glass substrate having the optical anisotropy. The thermal deformation temperature of the upper optical phase differential film is≥150°C. <P>COPYRIGHT: (C)2004,JPO&NCIPI</p> |
