摘要:
A wire-grid polarizer comprising a light-transmitting substrate 14 having a surface on which a plurality of ridges 12 are formed in parallel with one another at a predetermined pitch with flat portions 13 formed between the ridges 12, each of the ridges 12 having a width narrowing from the bottom toward the top; and a metal layer 20 covering at least one side surface of each ridge 12, the maximum covering thickness of the metal layer on a lower half of the ridge being smaller than the maximum covering thickness of the metal layer on an upper half of the ridge; and a process for producing the first metal layer 20 by vapor-depositing a metal from a direction satisfying tan(θR1±10)=(Pp−Dpb/2)/Hp on the first side surface 16 side, and subsequently vapor-depositing the metal from a direction at an angle satisfying θR1+5≦θR2≦θR1+25.
摘要:
Provided are a wire-grid polarizer, which has not only a high degree of polarization, a high p-polarized light transmittance and a high s-polarized light reflectance but also a low angle dependency and a low wavelength dependency in terms of optical properties in a visible light region, and a process for producing the same.A wire-grid polarizer 10 comprising a light-transmitting substrate 14 having a plurality of ridges 12 formed in parallel to one another at certain pitches Pp through respective flat portions 13 disposed between adjacent ridges 12, each of the ridges having a width gradually reduced from a base portion to a top portion thereof, and a metal layer 20 composed of metal or a metal compound, the metal layer covering the entirety of a first lateral face 16 of each ridge 12 and a part of the flat portion 13 adjacent to the first lateral face 16 such that a second lateral face 18 of each ridge 12 is covered with no metal layer or is partially covered with the metal layer; and a process for forming the metal layer 20 by vapor-depositing metal or a metal compound on the first lateral face from a direction that is substantially orthogonal to a longitudinal direction of the ridges 12 and forms an angle of from 25 to 40 degrees toward the first lateral face 16 with respect to a height direction of the ridge 12 under conditions where the metal layer is disposed at a deposition amount of from 40 to 60 nm.
摘要:
Provided is a process for easily producing a wire grid polarizer showing a high polarization separation ability in the visible light region and having an improved transmittance in a short wavelength region.
摘要:
Provided is a process for easily producing a wire grid polarizer showing a high polarization separation ability in the visible light region and having an improved transmittance in a short wavelength region.On a light-transmitting substrate 14 having a surface on which a plurality of ridges 12 are formed, an underlayer 22, first fine metallic wires 24 and second fine metallic wires 30 are formed by a vapor deposition method satisfying the conditions (A) to (F). (A) The underlayer material was vapor-deposited on a top face 16 and a first side face 18 of each ridge 12 from a direction of an angle θL. (B) The underlayer material is vapor-deposited on the top face of a first underlayer 22a and a second side face 20 from a direction of an angle of θR on the opposite side to that of the condition (A). (C) θL and θR are from 60° to 90°. (D) The height Hma1 of the underlayer 22 is from 1 to 20 nm. (E) A metal or a metal compound is vapor-deposited on the top face of the underlayer 22 and a bottom face 28 of each groove 26. (F) The height Hma2 of each first fine metallic wire 24 and the height Hp of each ridge satisfy a relation 40 nm≦Hma2≦0.9×Hp.
摘要:
To provide a mold for nanoimprinting capable of accurately transcribing a fine concavo-convex structure, available at a low cost and having high durability, its production process, and processes for producing a molded resin having a fine concavo-convex structure on its surface having the fine concavo-convex structure of the mold accurately transcribed, and a wire-grid polarizer, with high productivity.A mold 10 for nanoimprinting having on its mold surface a fine concavo-convex structure comprising a plurality of grooves 14 formed in parallel with one another at a constant pitch, which comprises a mold base 12 made of a resin having on its surface a fine concavo-convex structure to be the base of the fine concavo-convex structure, a metal oxide layer 16 covering the surface having the fine concavo-convex structure of the mold base 12, and a release layer 18 covering the surface of the metal oxide layer 16, is used.
摘要:
To provide a mold for nanoimprinting capable of accurately transcribing a fine concavo-convex structure, available at a low cost and having high durability, its production process, and processes for producing a molded resin having a fine concavo5 convex structure on its surface having the fine concavo-convex structure of the mold accurately transcribed, and a wire-grid polarizer, with high productivity. A mold 10 for nanoimprinting having on its mold surface a fine concavo-convex structure comprising a plurality of grooves 14 formed in parallel with one another at a constant pitch, which comprises a mold base 12 made of a resin having on its surface a 10 fine concavo-convex structure to be the base of the fine concavo-convex structure, a metal oxide layer 16 covering the surface having the fine concavo-convex structure of the mold base 12, and a release layer 18 covering the surface of the metal oxide layer 16, is used.
摘要:
A novel photochromic liquid crystal comprising a diarylethene compound having both photochromic properties and liquid crystallinity. This compound is a photochromic diarylethene compound having a mesogen group in each of the two aryl groups. The photochromic liquid crystal provides a large change in birefringence by photoisomerization or phase transition, and has high durability against repeated changes in birefringence. A side-chain polymer liquid crystal containing the above photochromic liquid crystal is useful as an optical recording material. Such an optical recording material is capable of performing light modulation by irradiation with light near Tc thereof, and is applicable to photo operator devices, optical memories, and the like. Further, the optical recording material is useful as a material for a recording layer of an optical recording medium such as an optical disk or an optical memory card.
摘要:
A laminate of the present invention includes a first transparent resin layer, a first polymer liquid crystal layer, a second transparent resin layer, and a second polymer liquid crystal layer. A process for producing the laminate involves curing a resin to form the first transparent resin layer with certain liquid crystal alignment properties. The process then involves forming the first liquid crystal layer from a curable liquid crystalline monomer or a crosslinkable polymer liquid crystal on the first transparent resin layer. The first liquid crystal layer has the liquid crystal alignment properties of the first transparent resin layer. Next, the process involves forming a second transparent resin layer with different liquid crystal alignment properties on the first polymer liquid crystal layer, then forming a second polymer liquid crystal layer on the second transparent resin layer in the same manner.
摘要:
Processes for producing an article having a fine concavo-convex structure on the surface of a transparent substrate and a wire-grid polarizer, with high quality with high productivity, with which a concavo-convex layer having a large area can easily be achieved. The process comprises a step (I) of forming an interlayer (A) on the surface of a substrate film, a step (II) of forming a concavo-convex layer (B) having a fine concavo-convex structure on its surface, on the surface of the interlayer (A) by imprinting technology, and a step (IV) of separating a laminate comprising the interlayer (A) and the concavo-convex layer (B) from the substrate film and laminating the laminate to the surface of a transparent substrate so that the interlayer (A) faces the transparent substrate side. Further, a process for producing a wire-grid polarizer employing the production process.
摘要:
Processes for producing an article having a fine concavo-convex structure on the surface of a transparent substrate and a wire-grid polarizer, with high quality with high productivity, with which a concavo-convex layer having a large area can easily be achieved. The process comprises a step (I) of forming an interlayer (A) on the surface of a substrate film, a step (II) of forming a concavo-convex layer (B) having a fine concavo-convex structure on its surface, on the surface of the interlayer (A) by imprinting technology, and a step (IV) of separating a laminate comprising the interlayer (A) and the concavo-convex layer (B) from the substrate film and laminating the laminate to the surface of a transparent substrate so that the interlayer (A) faces the transparent substrate side. Further, a process for producing a wire-grid polarizer employing the production process.