JP2006323417A5 - - Google Patents

Claims (8)

A liquid crystal panel in a twisted nematic mode in which a liquid crystal layer is sandwiched between a pair of substrates, a light source that irradiates light to the liquid crystal panel, and an outer side of the substrate of the liquid crystal panel on which light from the light source is incident A first optical compensator obtained by hybrid alignment of liquid crystal molecules exhibiting negative refractive index anisotropy, and a liquid crystal exhibiting negative refractive index anisotropy arranged outside the first optical compensator A liquid crystal device comprising: a second optical compensation plate obtained by hybrid-aligning molecules;
The first optical compensator is disposed on the side on which light from the light source is incident, the surface having the smaller angle formed by the optical axis of the liquid crystal molecules and the normal line of the first optical compensator. In the second optical compensator, a surface having a larger angle formed by the optical axis of the liquid crystal molecule and the normal line of the second optical compensator is disposed on the side on which light from the light source is incident. In addition, a surface having a smaller angle formed between the optical axis of the liquid crystal molecule and the normal direction of the second optical compensation plate is disposed to face the first optical compensation plate. Liquid crystal device. A liquid crystal panel in a twisted nematic mode in which a liquid crystal layer is sandwiched between a pair of substrates, a light source that irradiates light to the liquid crystal panel, and the substrate of the liquid crystal panel that is opposite to the side on which light from the light source is incident A second optical compensator formed by hybrid alignment of liquid crystal molecules exhibiting negative refractive index anisotropy disposed on the outer side of the negative optical axis, and an anisotropic negative refractive index disposed on the outer side of the second optical compensator A first optical compensator formed by hybrid alignment of liquid crystal molecules exhibiting a property,
The second optical compensator is arranged such that the surface with the larger angle formed by the optical axis of the liquid crystal molecules and the normal line of the second optical compensator is on the side on which light from the light source is incident, In the first optical compensator, a surface having a smaller angle formed by the optical axis of the liquid crystal molecules and the normal line of the first optical compensator is disposed on the side on which light from the light source is incident. In addition, the liquid crystal device is characterized in that the surface is arranged to face the second optical compensation plate.   The fast axis of any one of the first optical compensation plate and the second optical compensation plate is parallel to the orientation regulating direction of the substrate corresponding to the optical compensation plate. The liquid crystal device according to claim 1, wherein the liquid crystal device is disposed in the liquid crystal device.   The direction of the fast axis of the second optical compensation plate and the orientation regulating direction of the substrate on the side where light from the light source of the liquid crystal panel is emitted are different from each other. The liquid crystal device according to claim 1 or 2.   The phase difference acting when the first optical compensator and the second optical compensator are viewed from the normal direction is set to be 10 nm or more and 30 nm or less. The liquid crystal device according to claim 4.   The fast axis of the first optical compensator and the fast axis of the second optical compensator are arranged so that the fast axes when viewed from the normal direction intersect at an angle that is not perpendicular. The liquid crystal device according to claim 1, wherein the liquid crystal device is a liquid crystal device.   An intersection angle between the fast axis of the first optical compensator and the fast axis of the second optical compensator is set in a range of 91 ° to 110 °. The liquid crystal device according to claim 6. 8. A projection display device comprising the liquid crystal device according to claim 1 as a light modulation unit.