Abstract:
An optical film is provided which comprises a disperse phase of polymeric particles disposed within a continuous birefringent matrix. The film is oriented, typically by stretching, in one or more directions. The size and shape of the disperse phase particles, the volume fraction of the disperse phase, the film thickness, and the amount of orientation are chosen to attain a desired degree of diffuse reflection and total transmission of electromagnetic radiation of a desired wavelength in the resulting film.
Abstract:
A polarizing element having excellent scattering and polarizing properties is made from a stretched sheet composed of a continuous phase and a dispersed phase. The element has continuous and dispersed phases including different resins, and the refractive index differential between the continuous and dispersed phases along the stretched direction of the sheet differs from that perpendicular to the stretched direction. Incident light with a polarization state for which the refractive index differential is smaller is transmitted through the polarizing element, and incident light with a polarization state for which the refractive index differential is larger is scattered by the polarizing element. The continuous phase and the dispersed phase are bonded to each other substantially free from voids between their phases.
Abstract:
A method and structure of a polarizer with the uniform properties of optics is provided in the present invention that forms a diffusing adhesive layer above the polarizer layer. By having a different refraction coefficient in a plurality of nano particles and a resin so the incident light is uniformly dispersed and spread. Hence, the contrast of a display is improved, further, the viewable angle is enhanced.
Abstract:
The invention relates to a device for spatial modulation of a light beam of the type including: a polymer dispersed liquid crystal (PDLC) element, comprising at least two pixels distributed in a matrix with two pixelisation axes and that can be addressed independently of each other using a system with at least two electrodes; optical means for reducing the sensitivity of the said device to polarisation of the incident light beam. According to the invention, the optical means comprise depolarisation means for depolarising the incident light beam on the said PDLC element.
Abstract:
An optical film is provided which comprises a disperse phase of polymeric particles disposed within a continuous birefringent matrix. The film is oriented, typically by stretching, in one or more directions. The size and shape of the disperse phase particles, the volume fraction of the disperse phase, the film thickness, and the amount of orientation are chosen to attain a desired degree of diffuse reflection and total transmission of electromagnetic radiation of a desired wavelength in the resulting film.
Abstract:
There is provided a polarizing film of a polyvinyl alcohol film in/on which dichroic dye is adsorbed and oriented, wherein a hue angle H is in a range of 105null to 150null, and a chroma C* is 7 or smaller, providing that a parallel hue is expressed on a chromaticity coordinate of (a*, b*). There is also provided a polarizer comprising a film having the optical compensating function and a polyvinyl alcohol film in/on which dichroic dye is absorbed and oriented, wherein a hue angle H is in a range of 105null to 150null, and a chroma C* is 9 or smaller providing that a parallel hue thereof is expressed on a chromaticity coordinate of (a*, b*).
Abstract:
An optical film is provided which comprises a disperse phase of polymeric particles disposed within a continuous birefringent matrix. The film is oriented, typically by stretching, in one or more directions. The size and shape of the disperse phase particles, the volume fraction of the disperse phase, the film thickness, and the amount of orientation are chosen to attain a desired degree of diffuse reflection and total transmission of electromagnetic radiation of a desired wavelength in the resulting film.
Abstract:
An optical film is provided which comprises a disperse phase of polymeric particles disposed within a continuous birefringent matrix. The film is oriented, typically by stretching, in one or more directions. The size and shape of the disperse phase particles, the volume fraction of the disperse phase, the film thickness, and the amount of orientation are chosen to attain a desired degree of diffuse reflection and total transmission of electromagnetic radiation of a desired wavelength in the resulting film.
Abstract:
The anisotropic scattering device is intended to make an attempt of realizing higher luminance of a liquid crystal display by using an anisotropic scattering device in which an anisotropic scattering particle is arranged. The anisotropic scattering particle is dispersed in a liquid crystal matrix, and the particle is arranged in the same direction as a stretching direction of a liquid crystal molecule. Furthermore, the anisotropic scattering particle is oriented in one direction by mixing the anisotropic scattering particle with a resin, followed by stretching. A scattering particle having an aspect ratio of 1 or more shows an anisotropy to a polarizing component. These anisotropic scattering devices are used in combination so that a scattering axis thereof is allowed to intersect perpendicularly to a polarized light axis on the side where light is incident on a liquid crystal panel from a light source.
Abstract:
An optical film is provided which comprises a disperse phase of polymeric particles disposed within a continuous birefringent matrix. The film is oriented, typically by stretching, in one or more directions. The size and shape of the disperse phase particles, the volume fraction of the disperse phase, the film thickness, and the amount of orientation are chosen to attain a desired degree of diffuse reflection and total transmission of electromagnetic radiation of a desired wavelength in the resulting film.