Penetration of moisture and propagation of cracks is prevented in a polarizer. An adhesive is provided to cover one or more edges of the polarizer to seal the side section of the polarizer. The adhesive fills initial cracks to prevent the initial crack from being propagated to the inside of the polarizer. A protective film and the adhesive include a material having a hydrophobic characteristic. In a method of fabricating a polarizer, a polarizing film is shaped to form a polarizing layer, and a protective film is then attached by applying an adhesive onto the edges of the polarizing layer. Then, the adhesive is cured, and the protective film having the polarizing layer attached is processed, thereby dividing the protective film into a plurality of polarizers. The adhesive can firmly fix the crack since the adhesive is fills in cracks in the polarizing layer.

Method for fabrication of vector vortex waveplates of improved quality due to reduced singularity size and widened spectral band, the method comprising creating a boundary condition for vortex orientation pattern of a liquid crystal polymer on a substrate using materials with reversible photoalignment, equalizing exposure energy over the area of the waveplate by redistributing the energy of radiation used for photoalignment from the center of the beam to its peripheries, and using vector vortex waveplate as a linear-to-axial polarization converter. Fabrication of spectrally broadband vector vortex waveplates further comprises two or more liquid crystal polymer layers with opposite sign of twist.

Provided are an optical member for enhancing luminance and an organic light-emitting display device having the same. An optical member includes: a linear polarizer, a blue cholesteric liquid crystal (CLC) layer configured to transmit light, the light having only one of: a left-handed circularly polarized light component and a right-handed circularly polarized light component, and a quarter wave plate configured to convert the transmitted light, having the left-handed circularly polarized light component or right-handed circularly polarized light component, into linear polarized light, wherein the blue cholesteric liquid crystal (CLC) layer and the quarter wave plate are located on a same side of the linear polarizer.

A color conversion panel according to an exemplary embodiment of the present invention includes: a substrate; a first color filter and a second color filter adjacent to the first color filter disposed on the substrate; a first color conversion layer disposed on the first color filter; and a second color conversion layer disposed on the second color filter, wherein each of the first color conversion layer and the second color conversion layer includes at least two quantum dots representing different colors, and wherein the first color filter displays a different color from the second color filter.

Devices and systems to perform optical alignment by using one or more liquid crystal layers to actively steer a light beam from an optical fiber to an optical waveguide integrated on a chip. An on-chip feedback mechanism can steer the beam between the fiber and a grating based waveguide to minimize the insertion loss of the system.

A head-mounted display apparatus includes a display unit including a plurality of emissive areas which displays images and a plurality of transmissive areas disposed between the emissive areas and which transmits light from external light sources, a first optical element which receives and converges light emitted from the display unit onto a predetermined area, and a second optical element disposed opposite to the first optical element with respect to the display unit and which receives and diverges light incident toward the display unit from an outside.

A head-mounted display apparatus includes a display unit including a plurality of emissive areas which displays images and a plurality of transmissive areas disposed between the emissive areas and which transmits light from external light sources, a first optical element which receives and converges light emitted from the display unit onto a predetermined area, and a second optical element disposed opposite to the first optical element with respect to the display unit and which receives and diverges light incident toward the display unit from an outside.

A polarizer, a manufacturing method thereof and a display device are provided. The polarizer, including: a base substrate and a quantum rod layer disposed on a side of the base substrate, wherein the quantum rod layer includes a plurality of quantum rods arranged in a same direction. The polarizer can improve the utilization rate of light, and improve the brightness of the display panel, and hence achieve image display with high brightness and high color gamut.

An optical assembly including an optical element insert molded directly onto an optical stack is provided. The optical stack includes an optical film and may include a liner with the optical film being disposed between the optical element and the liner. The liner, if included, is removable from the optical film without substantial damage to the optical film. An outermost layer of the optical film may be diffusion bonded to a major surface of the optical element. The optical film includes a protective coating having an average thickness of no more than 30 micrometers. The protective coating includes an at least partially cured composition. The composition includes 70 to 96 weight percent of urethane (meth)acrylate compound having an average (meth)acrylate functionality of 2 to 9.5, and 2 to 20 weight percent of (meth)acrylate monomer having a (meth)acrylate functionality of 1 to 2.

The present invention is to provide an appropriate configuration of a VUV polarizer that can be used for such a process as photo-alignment. The VUV polarizer can polarize VUV light not more than 200 nm in wavelength, and has a substrate transparent to the VUV light and a grid on the substrate. The grid is formed of a lot of linear parts in parallel and structured with no filler between the linear parts. A material of each linear part is an oxide of a Group 3 element or Group 4 element, and makes PE not less than 0.2 under an optical constant combination making PE maximum in the VUV range, where PE=T.sup.2×log.sub.10(ER), T is the transmittance of the grid, and ER is the extinction ratio of the grid. A workpiece is subjected to a photo-alignment processing by irradiation of VUV polarized light emitting from the VUV polarizer.