摘要:
It is an object of this invention to provide a retardation film which uses a liquid crystal compound, has a suppressed streak defect and shows a good front contrast, and an application thereof. The present invention provides a retardation film in which a liquid crystal compound capable of showing a smectic phase is fixed in the smectic phase, the retardation film including a non-liquid crystal compound which satisfies the conditions A and B: condition A: molecular weight is 10000 or less; and condition B: T0-T1≦30° C. T0 represents the phase transition temperature between the nematic phase and the isotropic phase of a composition which does not contain the non-liquid crystal compound, and T1 represents the phase transition temperature between the nematic phase and the isotropic phase of a composition which contains the non-liquid crystal compound.
摘要:
The present invention provides an organic EL image display device including a light emitting element substrate, and a circularly polarizing plate, in which the light emitting element substrate includes a reflecting layer and an organic electroluminescent layer on the reflecting layer, the reflecting layer, the organic electroluminescent layer, and the circularly polarizing plate are arranged in this order, a polarization separation layer is provided between the organic electroluminescent layer and the circularly polarizing plate, the polarization separation layer includes a polarization separation region that reflects light of one polarization state in light emitted from the organic electroluminescent layer, and transmits light of another polarization state, and a visible light transmission region, the polarization separation region is formed of a layer formed by immobilizing a cholesteric liquid crystalline phase, and a positive C region-containing layer is provided between the organic electroluminescent layer and the circularly polarizing plate. The organic EL image display device according to the present invention has high brightness and little light leakage and blurring at the time of oblique observation.
摘要:
The present invention provides a reflective laminate capable of efficiently reflecting light in a wide wavelength range, a method for producing the reflective laminate, a bandpass filter, and a wavelength selective sensor. The reflective laminate according to the present invention is a reflective laminate including at least one first reflective layer that reflects dextrorotatory circularly polarized light and at least one second reflective layer that reflects levorotatory circularly polarized light, in which the selective reflection wavelengths of the first reflective layer and the second reflective layer are each 600 nm or more, and each of the first reflective layer and the second reflective layer is a layer obtained by immobilizing a dichroic dye having an absorption maximum wavelength on a longer wavelength side than 400 nm in a cholesteric alignment state.
摘要:
An optical film comprising a transparent support, and thereon, an alignment layer comprising at least one photo-acid-generating agent, and an optically anisotropic layer formed of a composition comprising a liquid crystal having a polymerizable group as a main ingredient is disclosed. The optically anisotropic layer is an optically anisotropic patterned layer comprising a first retardation domain and a second retardation domain disposed alternately in a plane.