Abstract: An X electrode (18) is provided on a surface of a phase plate (15) which surface faces a liquid crystal panel (10). A Y electrode (19) is provided on a surface of a polarizing plate (17) which surface faces the liquid crystal panel (10). This makes it possible to provide a display device that has a touch function and can reduce a thickness and improve display quality.

Abstract: An evaluation apparatus includes a lighting control section for lighting a liquid crystal display panel including switch-type touch sensors, a pressing section for pressing the liquid crystal display panel that is being lit, and a sensor data acquisition section for acquiring outputs from touch sensors disposed within a region of the liquid crystal display panel that is pressed by the pressing section. The pressing section is made of a material having transparency. With this apparatus, it is possible to inspect switch-type touch sensors of a liquid crystal display panel for defects by checking a display state in a region to which a load is being applied.

Abstract: A liquid crystal display device is configured such that the liquid crystal display device detects a pressed position by having contact regions, which are a part of the first substrate and a part of the second substrate, in contact with each other when the first substrate or the second substrate is bent by being pressed and in each of the contact region of the first substrate and the second substrate, a conductive film that repels an alignment film before hardening is arranged such that the conductive film is exposed from the hardened alignment film.

Abstract: A light shielding film includes a protrusion for a touch sensor, which is formed to protrude further than a color filter layer toward the side of a first substrate, and a spacer portion, which is formed to protrude further than the protrusion for a touch sensor toward the side of a first substrate and defines the thickness of a liquid crystal layer. A counter electrode, which covers the protrusion for a touch sensor and the color filter layer, is formed on a second substrate.

Abstract: A protrusion for a touch sensor protruding toward the first substrate, an opposite electrode covering the protrusion for a touch sensor and the color filter layer, and a spacer defining the thickness of the liquid crystal layer are formed on a second substrate, and a touch electrode is formed on the first substrate and placed opposite the protrusion for a touch sensor through the opposite electrode therebetween. Furthermore, the spacer and the protrusion for a touch sensor are respectively formed in a single unit with the same material and with the same color as respective ones of the color layers of the color filter layer.

Abstract: A circularly polarizing plate includes a ?/4 phase difference plate and a linearly polarizing plate overlaid on a main surface of the ?/4 phase difference plate and having an absorption axis forming an angle of about 45° with respect to a lagging axis of the ?/4 phase difference plate. The ?/4 phase difference plate has reverse wavelength dispersion characteristics and an Nz coefficient of 1.6 or more. Employment of this structure can provide the circularly polarizing plate having good view angle characteristics and a vertical alignment type of liquid crystal display panel having the same.

Abstract: A circularly polarizing plate includes a ?/4 phase difference plate and a linearly polarizing plate overlaid on a main surface of the ?/4 phase difference plate and having an absorption axis forming an angle of about 45° with respect to a lagging axis of the ?/4 phase difference plate. The ?/4 phase difference plate has reverse wavelength dispersion characteristics and an Nz coefficient of 1.6 or more. Employment of this structure can provide the circularly polarizing plate having good view angle characteristics and a vertical alignment type of liquid crystal display panel having the same.

Abstract: It is an object of the invention to display white and black colors simultaneously in addition to a color display, in a birefringence control type liquid crystal display device using a high polymer film in optical compensation plate. In the birefringence control type liquid crystal display device using a high polymer film in the optical compensation plate, the product d.DELTA.n of a cell gap d and a refractive index anisotropy .DELTA.n of the liquid crystal cell is set in a range of 1700 nm to 1950 nm, the difference (d.DELTA.n-d.sub.R n.sub.R) of the d.DELTA.n of the liquid crystal cell and the product d.sub.R .DELTA.n.sub.R of a refractive index anisotropy .DELTA.n.sub.R and a film thickness d.sub.R of the phase difference plate is set in a range of 750 nm to 850 nm, the crossing angle of the orientation direction of the upper side of the liquid crystal layer and the slow axis of the phase difference plate is set in a range of 80.degree. to 100.degree.