Abstract: The optical element includes: a first polarizer; a first retardation layer; a second retardation layer; and a second polarizer. First anisotropic molecules near the first polarizer are greater in tilt angle than first anisotropic molecules near an interface with the second retardation layer, with the tilt angles of the first anisotropic molecules continuously changing in a thickness direction. Second anisotropic molecules near the second polarizer are greater in tilt angle than second anisotropic molecules near an interface with the first retardation layer, with the tilt angles of the second anisotropic molecules continuously changing in a thickness direction. Transmission axes of the first and second polarizers are parallel. Slow axes of the first and second retardation layers are parallel. The transmission axis of the first polarizer is parallel to or orthogonal to the slow axes of the first and second retardation layers.

Abstract: A color filter includes a frame portion in which the reflectance of light incident from the transparent substrate side is less than the reflectance of light incident from the overcoat layer side and an opening portion in which the reflectance of light incident from the transparent substrate side is greater than the reflectance of light incident from the overcoat layer side. The color filter satisfies nbc×dbc<?×A2+?×A+?, where nbc is the refractive index of the transparent base coat layer, dbc nm is the film thickness of the transparent base coat layer, and A is the opening ratio of the color filter, and where A, ?, ?, and ? respectively satisfy A=(area of the opening portion)/(area of an active area), ?=436.7×nbc?837.2, ?=?315.8×nbc+523.7, and ?=?358.3×nbc+771.8.

Abstract: Provided is an optical element including, sequentially from a viewing surface side toward a back surface side: a first polarizer; a negative C plate; a phase difference layer; and a second polarizer. A transmission axis of the first polarizer is parallel to a transmission axis of the second polarizer. The phase difference layer contains anisotropic molecules. In the phase difference layer, a tilt angle of the anisotropic molecules on a viewing surface side in the phase difference layer and a tilt angle of the anisotropic molecules on a back surface side in the phase difference layer are the same as each other and greater than 0°. A slow axis of the phase difference layer, in a case of lying in a tilt direction of the anisotropic molecules, is parallel to or perpendicular to the transmission axis of the first polarizer.

Abstract: A color filter includes a frame portion in which the reflectance of light incident from the transparent substrate side is less than the reflectance of light incident from the overcoat layer side and an opening portion in which the reflectance of light incident from the transparent substrate side is greater than the reflectance of light incident from the overcoat layer side. The color filter satisfies nbc×dbc<?×A2+?×A+?, where nbc is the refractive index of the transparent base coat layer, dbc nm is the film thickness of the transparent base coat layer, and A is the opening ratio of the color filter, and where A, ?, ?, and ? respectively satisfy A=(area of the opening portion)/(area of an active area), ?=436.7×nbc?837.2, ?=?315.8×nbc+523.7, and ?=?358.3×nbc+771.8.

Abstract: Provided is an optical element including, sequentially from a viewing surface side toward a back surface side: a first polarizer; a negative C plate; a phase difference layer; and a second polarizer. A transmission axis of the first polarizer is parallel to a transmission axis of the second polarizer. The phase difference layer contains anisotropic molecules. In the phase difference layer, a tilt angle of the anisotropic molecules on a viewing surface side in the phase difference layer and a tilt angle of the anisotropic molecules on a back surface side in the phase difference layer are the same as each other and greater than 0°. A slow axis of the phase difference layer, in a case of lying in a tilt direction of the anisotropic molecules, is parallel to or perpendicular to the transmission axis of the first polarizer.

Abstract: Provided is an optical element including a phase difference layer. The phase difference layer is a laminate of n first phase difference layers and m second phase difference layers. The n first phase difference layers each contain first anisotropic molecules with tilt angles different between a viewing surface side and a back surface side. The m second phase difference layers each contain second anisotropic molecules with tilt angles different between a viewing surface side and a back surface side. Slow axes of the n first phase difference layers are in a same orientation. Slow axes of the m second phase difference layers are in a same orientation. The slow axes of the n first phase difference layers and the slow axes of the m second phase difference layers are anti-parallel to each other and are parallel to or perpendicular to the transmission axis of the first polarizer.

Abstract: Provided is an optical element including a phase difference layer. The phase difference layer is a laminate of n first phase difference layers and m second phase difference layers. The n first phase difference layers each contain first anisotropic molecules with tilt angles different between a viewing surface side and a back surface side. The m second phase difference layers each contain second anisotropic molecules with tilt angles different between a viewing surface side and a back surface side. Slow axes of the n first phase difference layers are in a same orientation. Slow axes of the m second phase difference layers are in a same orientation. The slow axes of the n first phase difference layers and the slow axes of the m second phase difference layers are anti-parallel to each other and are parallel to or perpendicular to the transmission axis of the first polarizer.