Abstract:
A liquid crystal panel of the present invention includes at least a liquid crystal cell, a first polarizer disposed on one side of the liquid crystal cell, a second polarizer disposed on the other side of the liquid crystal cell and a retardation film (A) disposed between the liquid crystal cell and the first polarizer, wherein the retardation film (A) contains a thermoplastic polymer having at least a substituent (a) represented by the following formula (I) and its in-plane retardation value (Re[750]) at a wavelength of 750 nm is larger than its retardation value (Re[550]) at a wavelength of 550 nm. The liquid crystal panel has such an effect that it reduces coloring of characters or images and a color shift even if a screen is viewed from any direction at an angle range of 360°.
Abstract:
There is provided a method for stably producing metal oxide solid solution particle at low temperature, wherein an alkaline zirconia sol is used as a raw material which is mixed with a metal compound, and then dried and fired. Specifically, there is disclosed a method for producing metal oxide particle (A3) such as zirconia particle in which metal oxides are solid-solubilized, comprising: a step (I) for obtaining metal oxide (A2) sol such as zirconia sol containing a precursor of a metal oxide by mixing an alkaline zirconia (A1) sol which is obtained by a method including a step (i) for heating a zirconium salt (B2) at 60-110° C. in an aqueous medium containing a carbonate of quaternary ammonium and a step (ii) for performing a hydrothermal treatment at 110-250° C., with a compound (B1) containing an element selected from a group consisting of the group II and group III elements of the periodic table; and a step (II) for drying the thus-obtained sol and then firing a resultant substance at a temperature of 500-1200° C.
Abstract:
A liquid crystal panel of the present invention includes at least a liquid crystal cell, a first polarizer disposed on one side of the liquid crystal cell, a second polarizer disposed on the other side of the liquid crystal cell and a retardation film (A) disposed between the liquid crystal cell and the first polarizer, wherein the retardation film (A) contains a thermoplastic polymer having at least a substituent (a) represented by the following formula (I) and its in-plane retardation value (Re[750]) at a wavelength of 750 nm is larger than its retardation value (Re[550]) at a wavelength of 550 nm. The liquid crystal panel has such an effect that it reduces coloring of characters or images and a color shift even if a screen is viewed from any direction at an angle range of 360°.
Abstract:
[Problems to be Solved] To provide a production method of an alkaline zirconia having compatibility of particle properties and binding properties.[Means to Solve the Problems] A production method of an alkaline zirconia sol including: a process (I) in which an alkaline zirconia sol (A) is mixed with a basic zirconium carbonate salt (B1), the alkaline zirconia sol (A) being obtained by: a sub-process (i) in which a zirconium salt (B2) is heated at 60 to 110° C. in an aqueous medium containing a carbonate salt of quaternary ammonium; and a sub-process (ii) in which a hydrothermal treatment is performed at 110 to 250° C. following the sub-process (i). More specifically, a production method of an alkaline zirconia sol including: a process (I) in which an alkaline zirconia sol (A) and a basic zirconium carbonate salt (B1) are mixed in a mass ratio (Bs/As) ranging from 0.05 to 4.0 of a mass of a solid content (Bs) of the basic zirconium carbonate salt (B1) which is converted into an amount of ZrO2 to a mass of a solid content (As) of the alkaline zirconia sol (A) which is converted into an amount of ZrO2; and a process (II) in which the mixture obtained in the process (I) is aged at 20 to 100° C.
Abstract:
There is provided a liquid crystal panel, in which a color shift in an oblique direction is small even when observed from any azimuth angle of 0° to 360°, and the viewing angle in the horizontal direction is wide. A liquid crystal panel according to the present invention includes: a liquid crystal cell; a first polarizer placed on one side of the liquid crystal cell; a second polarizer placed on the other side of the liquid crystal cell; and a first optical compensation layer and a second optical compensation layer placed between the first polarizer and the second polarizer, wherein: the first optical compensation layer is placed between the first polarizer and the liquid crystal cell; a slow axis direction of the first optical compensation layer is substantially perpendicular to an absorption axis direction of the first polarizer; the first optical compensation layer has a refractive index profile of nx>ny≧nz; the first optical compensation layer includes a retardation film (A) which contains a polyvinyl acetal-based resin and whose in-plane retardation value (Re[750]) at a wavelength of 750 nm is larger than an in-plane retardation value (Re[550]) at a wavelength of 550 nm; the second optical compensation layer is placed between the first optical compensation layer and the second polarizer; and the second optical compensation layer has a refractive index profile of nx=ny>nz.
Abstract:
A stable silica sol having an SiO2 concentration of 1 to 50% by weight and containing liquid-medium dispersed moniliform colloidal silica particles each having 3 or more as a ratio of D1/D2 of a particle diameter (D1 nm) measured by a dynamic light scattering method to a mean particle diameter (a particle diameter measured by a nitrogen absorption method: D2 nm) where D1 is 50 to 500 nm, and which are comprised by spherical colloidal silica particles having a mean particle diameter of 10 to 80 nm and metal oxide-containing silica bonding these spherical-colloidal silica particles, and in which the spherical colloidal silica particles link in rows in only one plane, process for producing such and a coating composition for ink receiving layers containing such a silica sol and an ink jet recording medium.