Abstract: An optical filter satisfying Mathematical Formula 1 and an imaging device comprising the filter are provided. ?E*?1.5.??[Mathematical Formula 1] In Mathematical Formula 1, ?E* represents a color difference between light that has entered in the vertical direction of the optical filter and passed through the optical filter, and light that has entered in the direction at an angle of 30° to the vertical direction of the optical filter and passed through the optical filter.

Abstract: Disclosed is an organic-inorganic hybrid composition. The organic-inorganic hybrid composition includes a curable resin and inorganic particles dispersed in the curable resin. The inorganic particle has a core-shell structure composed of a core containing titanium and barium, and a shell containing at least one selected from zirconium, aluminum and chromium. According to this organic-inorganic hybrid composition, a liquid-phase refractive index of the composition can be improved, and as a result, luminance and light transmittance can be improved in an optical member using the same.

Abstract: Provided is an optical sheet module that includes: a first optical sheet that includes a first base substrate, and a first structurization pattern configured to refract light incident from the first base substrate in a normal direction; a second optical sheet that is formed above the first optical sheet, and includes a second base substrate and a second structurization pattern for refracting the light incident from the second base substrate in the normal direction and intersecting an extension direction of the pattern with an extension direction of the first structurization pattern; and a reflective polarizing sheet that is formed on the second optical sheet, reflects light polarized in the first direction to the lower portion, and transmits light polarized in the second direction to a display, wherein the first optical sheet and the second optical sheet are bonded to each other.

Abstract: The present invention provides a curable composition comprising an acrylate and a quantum dot, and a device using the same. Since the luminous efficiency and dispersion of a quantum dot are excellent and the curable composition has remarkable UV stability and heat resistance, the curable composition can be effectively applied to various forms of light emitting devices.

Abstract: The present invention relates to a compound, and a light-emitting element and an electronic device including the same, and, more particularly, to a compound for an organic light-emitting element, and a light-emitting element and an electronic device including the same. The compound according to the present invention can improve hole injection and/or transport abilities.

Abstract: In an optical sheet and a backlight unit comprising same, the optical sheet comprises: a first transparent film, a first barrier layer; and an light conversion layer, wherein the first barrier layer is formed on one surface of the first transparent film, the light conversion layer is formed on top of the first barrier layer, and wherein at least one of a light-emitting composite including a wax particle and a nano light-emitting body that is disposed inside the wax particle, and a fluorescent particle is dispersed.

Abstract: A thermally conductive composition according to the present invention includes a base resin, thermally conductive particles, and a carbon-containing powder. Accordingly, heat transfer characteristics of a sheet may be improved.

Abstract: There is disclosed a multilayer optical sheet module including an upper optical sheet comprising a first structural pattern projected upward; a lower optical sheet disposed under the upper optical sheet, the lower optical sheet comprising a second structural pattern projected toward the upper optical sheet; and an adhesion layer provided between the upper optical sheet and the lower optical sheet, wherein the second structural pattern includes a light transmitting part having a traverse cross section getting smaller along an upward direction; and an embedded part continuously connected to an upper portion of the light transmitting part, with a predetermined portion embedded in the adhesion layer, and a circumference of a cross section possessed by the embedded part, contacting with the adhesion layer, is larger than a circumference of a virtual cross section locus formed by extending the light transmitting part upward, with a continuous slope.

Abstract: Provided are a novel compound and an organic electronic device (OED) including the same. The novel compound has better hole injection and hole transport properties than a conventional material, and thus may enhance thermal stability and efficiency when used as a material for a hole injection or hole transport layer of the OED.

Abstract: An optical film is formed with a plurality of optical patterns having peak and valley portions and a lighting device may include such an optical film. Pitches of the optical patterns, heights of the peak portions and depths of the valley portions are irregular, and plan and side structures of the optical patterns have a non-linear non-symmetrical arrangement structure in which the peak and valley portions are irregularly bent. According to an optical film and a lighting device including such an optical film, a moiré phenomenon can be prevented in advance, abrasion resistance can be improved, optical defects such as scratches cannot be observed with the naked eye, a wet-out phenomenon can be prevented, and a viewing angle can be broadened.

Abstract: An optical element capable of increasing an angular field while improving luminance by condensing light, and a backlight unit and a liquid crystal display including the same. The optical element includes a light-transmitting base film; a plurality of diffusing cavities or convex diffusing structures formed in one surface of the base film to diffuse light entering the base film; and a light-condensing pattern formed in the surface of the base film where the diffusing cavities or convex diffusing structures are formed so as to condense incident light.

Abstract: An optical sheet and a Liquid Crystal Display (LCD) incorporating the same. The LCD includes a sheet-like transparent substrate made of a transparent material and a microscopic structure layer formed on one surface of the transparent substrate. The microscopic structure layer has an array of microscopic structures to emit light. A liquid crystal panel is formed above the microscopic structure layer, and has defined therein a plurality of pixels to display an image. When seen from above the transparent substrate, at least a portion of the microscopic structures has parallel and non-parallel arrangements repeated one or more times in a longitudinal direction thereof with respect to one side-edge of the pixels of the liquid crystal panel.

Abstract: Provided are a diffractive element for optical pickup and an optical module including the diffractive element. The diffractive element includes a plurality of diffraction patterns, and the diffraction patterns include a main diffraction pattern for creating diffraction characteristics, and an alignment mark pattern for recognizing an alignment position, the alignment mark pattern having a different pitch from the main diffraction pattern. Also, the pitch of the alignment mark pattern is formed smaller than that of the main diffraction pattern. Further, a ratio of the pitch of the alignment mark pattern to that of the main diffraction pattern is ? or greater to ½ or less.

Abstract: An optical device which maintains luminance characteristics to the greatest extent, improves light-collecting effects, and realizes a wide viewing angle, and a backlight unit and an LCD including the same. The optical device includes a light-transmitting base film. A plurality of convex portions is formed on at least one surface of the base film, and microscopic optical patterns have peaks and valleys, which abut each other, on part of the convex portions. Alternatively, a plurality of third fine optical patterns is formed on at least one surface of the base film. A portion of each third fine optical patterns abutting the base film forms a figure having long and short axes. Each of the third fine optical patterns has a peak with a height that decreases from the center to both ends thereof along the long axis.

Abstract: An optical film is formed with a plurality of optical patterns having peak and valley portions and a lighting device may include such an optical film. Pitches of the optical patterns, heights of the peak portions and depths of the valley portions are irregular, and plan and side structures of the optical patterns have a non-linear non-symmetrical arrangement structure in which the peak and valley portions are irregularly bent. According to an optical film and a lighting device including such an optical film, a moiré phenomenon can be prevented in advance, abrasion resistance can be improved, optical defects such as scratches cannot be observed with the naked eye, a wet-out phenomenon can be prevented, and a viewing angle can be broadened.

Abstract: An optical sheet and a Liquid Crystal Display (LCD) incorporating the same. The LCD includes a sheet-like transparent substrate made of a transparent material and a microscopic structure layer formed on one surface of the transparent substrate. The microscopic structure layer has an array of microscopic structures to emit light. A liquid crystal panel is formed above the microscopic structure layer, and has defined therein a plurality of pixels to display an image. When seen from above the transparent substrate, at least a portion of the microscopic structures has parallel and non-parallel arrangements repeated one or more times in a longitudinal direction thereof with respect to one side-edge of the pixels of the liquid crystal panel.

Abstract: Provided are an integrated optical sheet and an optical device having the same, and more particularly, an integrated optical sheet and an optical device having the same, in which a diffuser film and a prism film are integrated in a thin structure. The optical sheet includes a light collector including a plurality of prism elements extending in a first direction, and an anisotropic diffuser including a plurality of optical elements extending from a surface of the light collector opposite to the surface having the prism elements in a second direction different from the first direction. One part including downward prism elements and scattering elements is formed at one surface and the other part including diffusion elements is formed at the other surface to integrate a conventional diffusion film to a horizontal prism film, providing a thin optical sheet.

Abstract: An optical element capable of improving a light diffusion effect while minimizing a damage of other members in the LCD due to an impact and so on, and a backlight unit and an LCD including the same. The optical element includes an optically-transparent base member; and a light-diffusing resin layer formed on one side of the base member. The light-diffusing resin layer has a plurality of concave recesses formed in a surface thereof to diffuse light. The optical element further includes an optical micro-structural layer formed on the opposite side of the base member. The second light-diffusing resin layer has a plurality of concave recesses formed in a surface thereof to diffuse light.

Abstract: An optical element capable of increasing an angular field while improving luminance by condensing light, and a backlight unit and a liquid crystal display including the same. The optical element includes a light-transmitting base film; a plurality of diffusing cavities or convex diffusing structures formed in one surface of the base film to diffuse light entering the base film; and a light-condensing pattern formed in the surface of the base film where the diffusing cavities or convex diffusing structures are formed so as to condense incident light.

Abstract: Disclosed is a prism sheet structure that can control optical coupling between contact surfaces of two prism sheets in a backlight unit. The prism sheet includes: a structural surface (14) having non-planar peaks (11) with maximum height and minimum height along a length direction thereof; and a curved layer (17) having the same cycle as a cycle of height variation of the peak. The curved layer is formed at a boundary surface (16) between the structural surface 14 and the flat surface to maintain the right-angled isosceles triangular prisms formed due to a difference between the highest point and the lowest point of each of the peaks to have a predetermined size, so that distance between the valleys (12) is uniform along the length direction. Although shapes of prisms are identical, the cycle of the peak height variation allows the moiré´ patterns to be suppressed or removed.