The present invention provides a method of producing a thin polarizing film having both excellent optical characteristics and excellent in-plane uniformity. The method of producing a thin polarizing film includes stretching a thermoplastic resin substrate in a first direction, followed by formation of a polyvinyl alcohol-based resin layer on the thermoplastic resin substrate to prepare a laminate and shrinking and stretching the laminate in the first direction and a second direction, respectively.

The present invention is to provide a full-frame adhesive anti-fog film structure, comprising: an anti-fog film, which has a front side and a back side opposing the front side; and an adhesive, which is disposed at an edge of the back side and arranged along the edge so as to be frame-shaped. The anti-fog film of the present invention is attachable to a planar, cylindrical or spherical lens through the full frame-shaped adhesive so that not only can the anti-fog film be fully attached to the lens but the full attachment of film also prevents bubbles from forming between the two attached surfaces. Also, an airtight space is formed between the full-frame adhesive anti-fog film structure and the lens to stop heat transfer and prevent fog from being formed, so as to not only provide good vision to users but also reduce the chance that the user will fall prey to an accident if the user's view is blocked.

The present invention relates to a method for manufacturing a polarizing plate, the method including: preparing a polarizing plate where a protection film is laminated on one surface of a polyvinyl alcohol-based polarizer dyed with at least one or more of iodine and dichromatic dyes; and forming a depolarization region having single transmittance of 80% or more at a wavelength band in a range of 400 nm to 800 nm by bringing a decoloring solution including 1 to 30 wt % of a decolorant into local contact with the other surface of the polarizer, and a polarizing plate manufactured by using the same.

In manufacturing a functional plastic lens by loading a functional sheet S having a difference in the accuracy of bending in directions, into a mold 50 and by performing insert molding to integrally mold a lens body with the functional sheet S, a direction in which the accuracy of the bending to the functional sheet S is high is made to be a reference axis A, and the functional sheet S is loaded into the mold 50 to inhibit a filling direction of resin and the reference axis A from being orthogonal to each other. With this arrangement, the functional plastic lens having high quality is provided.

Methods for generating patterned nanoparticle assemblies in thin films of supramolecular nanocomposites are provided that allow control over microdomain morphology, periodicity, and orientation by tuning the assembly kinetics and pathways of the system. Directed self-assembly (DSA) of block copolymers (BCPs) with nanoparticles formed on lithographically-patterned templates produce patterned supramolecular nanocomposite films and patterns of nanoparticles. DSA may be used to guide the formation of concentric rings with radii spanning approximately 150 nm to 1150 nm and ring widths spanning about 30 nm to 60 nm, for example. When plasmonic nanoparticles are used, ring nanodevice arrays can be fabricated in one step, and the completed devices produce high-quality orbital angular momentum (OAM).

The present invention relates to a resin composition for a polarizer protective film, a polarizer protective film, a polarizing plate including the same, and a preparation method of a polarizing plate, and, more specifically, to a resin composition for a polarizer protective film and a polarizer protective film exhibiting high hardness and excellent properties, a polarizing plate including the same, and a preparation method of a polarizing plate. According to the polarizing plate of the present invention, it can be usefully utilized in various fields because of its excellent hardness, flexibility, and optical properties.

The present invention provides a method for improving visibility of an image display device which is capable of providing an image display device excellent in anti-reflection properties and bright-field contrast even using an optical layered body including a light-transmitting substrate having in-plane birefringence, such as a polyester film. The method of the present invention is a method for improving visibility of an image display device that has an optical layered body including a light-transmitting substrate having in-plane birefringence and an optical functional layer disposed on one surface of the substrate. The method includes the step of disposing the optical layered body such that the slow axis showing a greater refractive index of the light-transmitting substrate is in parallel with the vertical direction of a display screen of the image display device.

A phase difference film composed of a resin containing a copolymer including polymerization units A and B, the phase difference film including a cylindrical phase separation structure that generates a structural birefringence, the phase separation structure including a phase (A) having the polymerization unit A as a main component and a phase (B) having the polymerization unit B as a main component, and the phase difference film satisfying the following condition (1) or (2). Condition (1): D(A)>D(B) and f(B)>0.5, and a direction giving a maximum refractive index among in-plane directions and an orientation direction of a cylinder in the phase separation structure are parallel to each other. Condition (2): D(A)>D(B) and f(A)>0.5, and a direction giving a maximum refractive index among in-plane directions and an orientation direction of a cylinder in the phase separation structure are orthogonal to each other.

A roll-to-roll method for manufacturing 2D/3D grating switch membrane is performed in such a way that: Step 1 and Step 2 are simultaneously performed, then Step 3 is performed, and finally Step 4 is performed: Step 1, subjecting a concave grating facing down to rubbing and liquid crystal dropping; Step 2, uniformly coating a PI liquid onto a surface layer of a mirror-face metal roller, and performing self-hating and rubbing; Step 3, making the concave grating rubbed and dropped with liquid crystals in Step 1 and PI layer coated and directionally-rubbed on the mirror-face metal roller in Step 2 attached to each other, forming a grating membrane, and rotating and pre-baking the grating membrane with the mirror-face metal roller; Step 4, curing the attached and baked grating membrane by the UV curing means and after stripping, collecting and winding through the 2D/3D grating switch membrane collecting roller.

A method of making an optical film includes providing a film, substantially uniaxially orienting the film, and heat setting the oriented film. The film includes a polymeric material capable of developing birefringence.